T-Licht 24.1

T-Licht Association magazine of T.S.V. ‘Jan Pieter Minckelers’

NOVEMBER 2019 VOLUME 24 EDITION 01

Introduction week!

Interview:

Toine van Heeswijk & Magda van der Tol

Front image: MomenTUm Photo made by Tim Meijer

Good day readers, Slightly different then you might be used to, but contrary to regular Japie-believe, change can be quite refreshing. This introduction will not introduce a new editor-in-chief or (editorial) board member, but is a slight sneak peak to what you can find further on in this edition!

Culture shock Find out everything about Stefan and his “Happy Days” in Belfast!

Of course your regular columns are present, from the “Y van de huismeester” to “Thomas on research”. Despite not presenting them here, there are some new faces in our editorial board. You can read more about them on page 9. We hope you enjoy reading, and be sure to hand in your puzzle in time to be able to win a nice price! The editorial board

17 From the lock-up Either one or multiple freshmen, one hour, no subject and the small Japie-room. What will they come up with?

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By the Chairman: Why less can be more!

05 Education: Luckily I’m not alone

Chemistry in real life: Pretty pancake

preparation

Science news: Super plants

Culture shock: Happy days in Belfast

09 Introducing: Roy Wink and Aaryana Kunte 10 Spraakwater: Graduating, what else? 12

Japie survival guide: Money saving tips

Introduction week: On your mark, get set, party!

From the lock-up: Red-labelled stresskippen

Carte Blanche: I write English very well

20 Puzzle: Alchemical prize summoning ritual 21

Letting of some steam: Just make up your mind

PhD article: Towards templating 2D magnetite crystals

Beer of the Quartile: Gimme danger, but make it gluten-free, please

28 Internship: A ‘domestic’ internship for a more sustainable and circular future 29

Thomas on research: Hot, Hotter, Helix

Carte Blanche: Researching gas hydrates for summer

32 Interview: Toine van Heeswijk & Magda van der Tol 34

Het Y van de Huismeester: De intro, wat een feest

26 Beer of the Quartile: Gimme Danger Colophon Volume 24, edition 1, Circulation: 500 Editor in chief: Teun Prinsen. Editorial board: Bart van den Bersselaar, Alex van de Greef, Raoul Hendrix, Limi Kalapurackal, Aaryana Kunte, Douwe Orij, Vilena Petrova, Woutje ter Weel, Thomas Werkhorst, Marc Willemsen, Roy Wink. Printer: Gildeprint Drukkerijen info@gildeprint.nl

The T-Licht is the association magazine of T.S.V. ‘Jan Pieter Minckelers’, study association of the department of Chemical Engineering and Chemistry of the Eindhoven University of Technology. Contact: T.S.V. ‘Jan Pieter Minckelers’ Attn. Het T-Licht Helix STW 0.25 Postbus 513, 5600 MB Eindhoven Tel: 040-2473756 tlicht.st@tue.nl | www.tsvjapie.nl

The editorial board always reserves the right to edit or decline the provided copy. Index of advertisements: Pg 16: DOW Pg 30: Tejin Aramid Pg 35 : Chemelot Career Center

Why less can be more By the chairman

One of the questions that I was asked most frequently during my time as a candidate was about how we planned on doing a board year with only four people. While I do understand the concerns of some people, considering we do have less manpower, I think there some positive aspects of being with four board members. I would like to highlight some of the advantages I have experienced in the past months. While former boards usually consisted of either five or six board members, for the second time in three years a board was constituted with only four board members. A phrase often heard is â&#x20AC;&#x2DC;Less is moreâ&#x20AC;&#x2122;, but what does more actually mean in this case? One of the nicer things of being with less board members is that meetings and discussions are more efficient and cost less time. While having multiple opinions can help with judging situations or obtaining creative input, they can result in disagreement within a group. Personally, I think it is very important that everyone attending a meeting is heard, but this tends to be more difficult in larger groups and can be achieved much easier in smaller ones. Likewise, a smaller group forces you to be more cooperative with each other, which improves the cohesion within the group. Additionally, less struggles tend to occur during certain choices you have to make as a board, like the color of suit you select.

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As a chairman, I already got into contact with a lot of different aspects of the association. However, my fellow board members now have to do tasks that are not considered to be part of their specific function. I believe seeing the different sides of the association can give rise to new

insights and ideas, which might be helpful for the future. Finally, I would like to end on a critical note. While I do believe that a board consisting of four members is capable of running the association, I think it is very important that the association carefully considers how members can be inspired to choose for a board year in the near future. New ideas and plans are crucial for the association to be kept up to date, but the implementation of these often requires time, which is not always available for smaller boards. Nevertheless, I remain optimistic and expect to once again have an amazing year with the help of our members!

WRITTEN BY:

Jord Jansen As the brand new chairman of the association, Jord wanted to tell some more about being a board with just four members.

Luckily, I am not alone Education

Let me first introduce myself once again. I am Huub van den Bogaard and I am the coordinator of educational affairs of Japie this year. I will help wherever I can to improve our education and to be there for your questions. But I do not do this alone. There are many students that really contribute to proper education, not only within this department but also university wide. In this article, I will tell you more about those students. I will start at our own department. As the coordinator of educational affairs, I am a member of the educational committee of the department. Here, important educational matters are discussed but also decided. Besides me, there are five other students of our

study that are part of this committee. These students are from all stages of the bachelor or master program. Due to this variety, these students often bring points forward that none of the other committee members though about. With the six of us we really can make a difference! Also, on a university-wide level, students of our department can give feedback. An example of this is the studentâ&#x20AC;&#x2122;s meeting with the rector magnificus of our university that is coming up. Here students give feedback on educational matters. But also, the educational vision of the university for the coming years is discussed. Of course, not everybody can be a member of an educational committee. But if you are interested there are also other ways in which you can participate. Courses that had bad reviews are thoroughly evaluated after the course ends. On these evaluations there are also students present who followed the course. These students give direct feedback to the lecturer

and help set up agreements that must be honoured next year. Also, during the courses, you as student can play an active role in the evaluation of the course at hand. For some new or troublesome courses there are lecture follow-up groups. This is a group of three students that have a feedback moment with the lecturer every week. In these meetings agreements can be made and things can be changed during the course itself. I hope I have given you an idea about some of the things that students do to improve the education. You do not have to be in an educational body to help. The input that you give on the course questioners and on the cohort consultations is also much appreciated!

WRITTEN BY:

Huub van den Bogaard As the coordinator of educational affairs, Huub wanted to give everyone an insight on the ins and outs of educational island.

Super Plants Science news

While the environment on our lovely planet earth is degrading quickly and the need for more and a better adjusted food source is increasing, this has given many scientists to find better and more efficient ways to grow crops. Many things that seemed impossible many years ago are now in use or experimented with. This can range from converting more ranges of light to energy to â&#x20AC;&#x2DC;sensingâ&#x20AC;&#x2122; chemicals with the use of some clever materials. Scientists are reporting great results in the development of nanomaterials called Metal-Organic Frameworks (MOFs) and their application as coatings on plants. These special augmented plants can then have quite a few different functions. One of the more impractical, but beautiful, functions could be the dyeing of flowers. Via a cut in the stem of the flower, these dyes would penetrate the flower petals and show before unseen colors in these flowers. This works because of their great vascular

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networks and their readiness to absorb water and molecules in fluids. Usually, however, most materials and even nanoparticles like MOFs are too big to penetrate roots. This is why researchers at the University of Melbourne fed plants MOF precursors which the plants then absorb and the precursors would then react into finished nanomaterials inside of the plants. These MOFs, that consist of metal ions that are linked to organic molecules, form crystals that

can store and release other molecules. These can then be used in many different fields. Generally, a Metal-Organic Framework is a network with organic ligands that most of the time contain voids. This network is made out of repeating ligands that are interlinked with cross-links. This is called an organometallic polymer; a structure that contains metal cations that are connected by organic ligands.

These Metal-Organic Frameworks differ from other crystal structures because the density is quite low. Normally the distance between aromatic rings of benzene is about four angstrom. In Metal-Organic Frameworks, these are about twelve angstrom apart. The major difference in these two materials is that in MOFs we have metal ions that hold the linkers apart. These metal ions can be any metal that researchers would like, and even mixing of metal ions in one framework is possible. The voids make these compounds so very intersting, the MOFs can be engineered to act like a sponge, taking in multiple types of atoms and molecules not limited to hydrogen gas. Normally hydrogen gas is quite energy-intensive to store. As MOFs can easily be adjusted and have a high surface to volume ratio, they are very attractive for hydrogen storage. Compared to an empty gas cylinder a MOF-filled gas cylinder can store more hydrogen because the hydrogen molecules adsorb to the surface of these MOFs. On top of these advantages, many MOFs also have uptake-and-release behavior, so stored hydrogen gas can easily be released again. Research is still ongoing and hopefully, a MOF that has as high of a hydrogen uptake as needed will be found soon. Very recently, even MOFs that shrink when heated were found. As most materials expand when they are heated, this is a great find that proves that these compounds can be extremely versatile. Even though they aren’t as good as other materials in some departments, the huge amount of different ways they can be used makes them worth all the time and effort it takes to research them.

Alongside the energy field, MOFs are also used in catalysis and medicine. For instance, by carrying drugs to the necessary places inside of their pores. Because of the easy way they are programmed to take their structure, size and great biocompatibility. Many other fields are up and coming as well, just like agriculture. Because these MOFs can carry many different types of molecules inside of plants, many different additions could be made.

“The voids make these compounds so very intersting.” Right now, researchers have had plants make two different types of fluorescent MOF crystals inside of their tissues. They have also noticed that these plants had a bit of acetone in them whenever they were put into contact with some materials, which makes them wonder if these plants could be used for the detection of toxic materials. Researchers biomineralized those two types of Metal-Organic Frameworks inside a variety of plant clippings and even fully intact plants. No bad side effects have currently been found, and let’s hope that they won’t in the future.

Currently, the best use for these finished materials could be for protection. These fluorescent MOFs could be used to convert harmful UVlight to light that plants can use for photosynthesis. Or even just blocking said UV lights so that it doesn’t harm them is already a huge improvement. Hand coating with said UV-blocking nanoparticles has already shown to lessen wilting and bleaching of plants. In the future, these plants could be used to help plants grow in extreme situations, even suggestions of these plants being able to grow on Mars have been made. Let’s hope that these materials continue to grow in efficiency and usability. In a situation where we may need to be prepared for some difficult weather conditions and where we need constant improvements in agriculture these kinds of materials are highly needed. Maybe we, as up and coming chemists, can make a difference in the future as well!

WRITTEN BY:

Teun Prinsen Teun wanted to write another science news, not only to broaden his horizons but also to help fellow Japies understand what is going on in recent scientific developments.

A city divided Culture Shock

This year I went to Belfast, the capital of Northern-Ireland, for four months as part of the Erasmus Exchange Programme. After following classes here in Eindhoven for such a long time, I realised I was done with that format of earning my ECTS, so doing research at another university, in a country with surprisingly different culture and of course having to speak a language other than my native language, seemed like a good idea at the time… For those of you that don’t know me yet, which is quite possible since I have not been the most active at Japie, I am Stefan Zondag, 22 years old and now starting my second year of the CPT Master. I recently joined Hét TG and will be Coordinator of Breweries for the Craft beer festival committee this year. Since I was totally fed up with the format of studying and examination for three courses each quartile, I decided that I wanted to go abroad in Q4 of my first year as an MSc student. I chose Belfast because I have always had an affection for (Northern-) Ireland and because of my unhealthy Game of Thrones obsession. Both countries have a rich and rebellious history with the UK which lingers in its music, literature and everyday life. Important historical events

are the Potato Famine, the Easter Rising and Bloody Sunday. In Belfast mainly The Troubles (1960’s – 1998) still really resonate with the current population. Belfast is a divided city, just as Northern-Ireland is a divided country. From my window I could see the Europa Hotel, which is famously known as the most-bombed hotel in the world (courtesy of the IRA).

“I couldn’t help but love the Irish (Northern, don’t forget to call them Northern-Irish).”

Certain bars, shops, streets and holidays are only meant for either nationalists (supporters of a United Ireland) or unionists (supporters of the union with the UK). For instance, when I arrived during the Easter Holiday, the bars were crammed with nationalists for the Easter Rising celebrations, but on the 11th and 12th of July the celebration of the Bonfire and Orangefest ensures that nationalists keep their doors locked. However divided the country may be, all the people are lovely and polite, despite the “shite weather” and the fear of the possible Brexit borders. Their accents are “grand”, their appetites big and whenever they said “Happy days” (which means good-for-you in a friendly kind of way) I couldn’t help but love the Irish (Northern, don’t forget to call them Northern-Irish…).

WRITTEN BY:

Stefan Zondag After doing research in Belfast, Stefan wanted to give some insight in the divided city he found himself spending 4 months, where the difference between nationalist and unionist is still relevant today.

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Introducing Roy and Aaryana Introduction

New people join the forces of the editorial board almost every issue. As a part of a board year, or just because writing is simply a nice hobby to spend some time on; everyone has different reasons to join this committee of Japie. We want to tell you some more about ourselves and why you will see our names around more often.

Roy Wink My name is Roy Wink and I am the brand-new treasurer of Japie. Apart from your function specific tasks, every board member has some sidetasks. One of those is supervising committees to make sure everything goes well within the committees. One of the committees I may supervise this year is the T-Licht editorial board, which usually means I also will be the editor in chief this year. Sadly, the board is just with four guys this year, so some tasks

have to be given away. Therefore, I am very happy that Teun Prinsen will be the editor in chief this year and I am looking forward to a great collaboration with Teun and the rest of the editorial board the upcoming year.

learn. As for me, if I’m not cramming for finals in Metaforum, you’ll likely find me baking cakes, going to the movies, or with my nose in a good book. I wish you all good luck with your studies and a wonderful academic year ahead!

Aaryana Kunte As the new academic year picks up, many of us will once again be forced from our comfortable summer daze into rigorous study routines. Change is never easy, and even for me, having moved to a different country about every 3 years throughout my childhood, this sentiment continues to ring true. But as a friend once told me, “change is not only a natural aspect of life, it is a sign of life.” Thus, to honor this life ahead of us, we should not only embrace change, but strive to create it and seize the opportunities that come our way. As a second-year bachelor’s student, I too am keen on filling the year ahead with new experiences, and so far that has included recently joining the ‘T-Licht’ committee. Writing has always been a passion of mine, a way to document and tell our stories. Because at the end of the day, everyone has a good story, and it is worth taking the time to listen and

WRITTEN BY:

Roy Wink & Aaryana Kunte Joining the work of the editorial board, Roy and Aaryana wanted to elaborate on themselves a bit more.

Graduating, What else? Spraakwater

Dear diary, Basically your whole academic career leads you towards that special moment: your master’s degree. Along the way you will find yourself doing practical courses and projects together with capable (Chemical Engineering) students and non-capable (Industrial Design, Psychology and Technology etc.) student. You will have slain multiple exams, reports and intermediates. But then, at the end, the (as we would say in Dutch) “Eindbaas” of your heroic battle towards the graduation appears: The Almighty Master Thesis. I wake up quite early, around 07.00ish, and realize that my weekend is unfortunately over. After snoozing for about half an hour, I drag myself out of bed. I grab my towel and walk towards the shower, where my first confrontation with chemistry is inevitable: our shower curtain shows

Medeleev’s periodic table. After the nice, awakening shower I prepare my generous food feast for that day. My breakfast consists of two sandwiches with Nutella, my lunch consists of four sandwiches. I also pack an apple and some crackers.

A little before 08.00 hrs I grab my bike, switch from Wi-Fi to 4G and open my Pokémon Go app. Yes, I am one of these geeks that still plays this. (SO to Alwin vK., Bart vdB. and Fabian W. who are also still struggling to catch them all) Upon my arrival at the Helix I notice how empty the bicycle stand still is. I walk through the door and greet Magda or Toine (depending who of the two has the morning shift) while at the same time asking Michael how much has been doing since he arrived at the Helix and how much he still plans to do. Most of the time his answer is incoherent. I walk to the coffee machine and get my double espresso at strength 5/5, what else? I walk towards my office called ‘De Vrieskist’ and since I’m the first I have to juggle with my wallet and my coffee in order to find my campus card. After spilling some of my hot coffee on my hands I’ve managed to open the door. I start my laptop and take about fifteen minutes to eat my sandwiches and drink my morning coffee while watching the

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latest ‘Toppers’ on ‘Dumpert’. After that it is time to start the day with some healthy Aspen Plus simulations. If you don’t know what Aspen is you are probably too young to understand this piece of text at all or you are just a very ignorant MSMC ‘student’. In both cases I don’t really care.

hydrogen flowrate, close membrane B, open membrane C, measure the hydrogen flowrate and close membrane C. I do this every fifteen minutes and in the mean time I watch some movies on Youtube or work on my thesis writing (most often it is the former rather than the latter).

At exactly 12.00 hrs it is time for lunch. After about 500 Aspen errors my office buddy Martijn dB and I go towards the canteen to scan the expensive and the cheap soup and investigate if, and if so, what the budget snack is. Based on our findings we add soup and/or the budget snack to our lunch menu and move towards the Japiekamer. There Martijn dB makes the coffee and we spend about one hour talking about nothing, borrowing sauce from the board without returning it and other useless stuff.

After the experiments I go back to

The afternoon I do my experiments. I open membrane A, measure the hydrogen flowrate, close membrane A, open membrane B, measure the

“Eat, Sleep, Do your graduation project, Repeat”

since they have prepared some delicious food and I can just join dinner without any efforts. After dinner I take on the dishes and within one hour I have to leave again for the SSC since I have korfball practice. Returning from my practice I take a shower and go to bed, since again the alarm goes at 07.00-ish tomorrow morning. The alarm is a parody on a famous song and goes as: “Eat, Sleep, Do your graduation project, Repeat”. See you tomorrow dear diary. <3

WRITTEN BY:

the office and work a little bit more on Aspen. In the Hornystreet group chat the question is posed who eats at home tonight. I, as unfortunate as it is, have to work until about 18.00 hrs so I can’t go to the Jumbo with them. Frustrated again because I have made too little progress on my thesis, my wonderful housies elevate my mood

Fabrice Fontein As a proud-hearted ‘langstudeerder’ Fabrice wanted to give everyone an insight on the daily life of someonone graduating.

T-Licht

Money saving tips Japie survival guide

Studying can be very expensive. Therefore, the T-Licht editorial board has searched for the ultimate money saving tips for during your studies!

1. Skip classes You can easily save money by stopping to go to classes. Just think about it, you don’t need an expensive bike, or waste time (and time = money) by waiting on public transport!

2. Toilet Paper Hack Okay, so maybe skipping classes isn’t that good for your grades, who knew? So, we try to make the most out of the time you spend on the university. Save number 2 for when you’re in a university building. That way, you don’t need to buy any toilet paper at home! As an added bonus, your toilet at home stays sparkly clean, so you don’t need to invest in cleaning supplies either! A win-win situation!

3. Invest in a sports card Sometimes you need to spend money to save money. If you invest in a sports card from the ESSC you can use their showers. Just imagine how much you’ll save on your water bill, there’s even no need to get all worked up before you use them. If you do decide to exercise, find a buddy. You might be able to ‘borrow’ some shower gel and deodorant them as well.

4. Eat out Bear with me, sure, eating out is expensive, but you won’t need to learn how to cook! That’s a huge

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saving on time. Neither will you need to buy pans, pots and other cooking supplies, nor will you need to buy expensive ingredients or throw away those expensive ingredients when your dish inevitably fails.

won’t collect any interest, but its beer prices are steadier than money in an Icelandic bank. The F.O.R.T. also has some great craft beers for nearly no money at all, so if you’re going to spend it, it might as well be there.

5. Order trays of beer

8. Invest in a tank

If you order your beers in trays, there will be some spillage in the tray from the drafting or the foam. If you collect that, it’s easily another beer. That’s some real value for your money.

Don’t spend all of your money from uncle DUO on silly things like books. Buy a tank instead. Sure, you might not finish your education and get a job that’s able to pay back your student loans. But who’s going to want to collect? You’ve got a tank!

6. Visit your parents Visiting your parents is a great combo deal. You get free meals and you can use all of their utilities, including their washing machine. You’re not using your room, so you can rent that out for some passive income. If you put on your puppy eyes, you’re probably able to take some stuff with you to Eindhoven as well.

7. Keep your money safe If the last decade thought us anything, it’s that banks can collapse as well. So that’s no safe place to keep your money. I don’t trust your roommate, and neither should you, so keeping it in your mattress isn’t an option either. So where should you store it? The answer is closer then you think. Just across the Helix we have the Matrix, where you can buy a F.O.R.T.-card. If you deposit your money there, you

9. Broaden your interests Keep an open mind, you never know when opportunities arrive to save or make money. Just recently I was watching Netflix and came across this series called Breaking Bad… They should’ve called it Breaking Bank, because boy, there are some GREAT ideas there.

WRITTEN BY:

Marc Willemsen Marc wanted to share some great money saving tips. Please note that all of the above tips have not been approved by the financial committee and are, in fact, strongly discouraged.

On your marks, get set, party! Introduction week

On Monday the 19th of August, around 100 freshmen came to the TU/e to attend the intro week. They had no idea what to expect of the coming week. Some shady looking people in light blue colored blouses guided them towards the Helix. There they were seated in the pantry before being escorted to the lecture room where some good-looking guys in red polo shirts were waiting for them. The intro week had begunâ&#x20AC;Ś

Monday

Tuesday

After Peter Janssens had given his yearly presentation about his summer holiday and the IntroCie had introduced themselves and the intro week, the freshmen got to see their first bit of Japie with an introductory presentation from the candidate-board. After that, it was time for the freshmen to get to know their groups and parents by playing some games. Then, just before noon, lunchtime had arrived and the intro week was officially opened with a performance by the mind illusionist Jochem Nooyen. In the afternoon, the freshmen attended their first business case given by ExxonMobil, which was a bit different from other years since they introduced a fun quiz. Then, each group had their intro-mom and intro-dad cook for them at their homes, before returning to the campus for the first festival of the week. The remaining nerves of the freshmen were gone quickly because of some live music and a glass of beer. When the festival was over, Japie had organized a little pub crawl, so the kiddos could get to know Stratumseind. At 02:00 hr, and after maybe a few beers too many, the night was over and it was time to go to bed.

Having had six hours of sleep, the kiddos were ready for the second day of this amazing week. Today, they started with a faculty tour where they would get to know the candidateboard, some committees, the caretaker of the building and could order their lab coats and glasses. While the kiddos were slowly walking around the Helix, the IntroCie was very busy preparing for the barbeque and the stand for the Green Strip Market. The stand this year was a water arena in which the kiddos had to steal a football from the other team. Unfortunately, it started to rain a bit in the first hour, but luckily the

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weather got better pretty quickly. In the end, we can proudly say that the stand was a success for both the committee and the freshmen. However, not just Japie had a stand at the Market and the freshmen had lots of fun at the other stands as well. The dinner consisted of the mentioned barbeque and this year there were some grilled vegetables for everyone to enjoy alongside the meat or veggie food. Some beers could be purchased at the outside bar of the F.O.R.T. and the usual square meter of beer was bought too. After everyone filled their stomachs, it was time for the most awesome party of the entire week: the T-Feest. The party was again held in the Miller Time and here the kiddos got to know some older members of the association and with them a golf ball in their glass of beer. The night did however not stop with this party, since some groups continued to party at the student associations.

Wednesday After having partied hard the previous night, everyone was present

again at 09:00 hr. Well, not everyone since some people had trouble getting out of bed. Today, the freshmen went on a campus- and city-tour to get to know some of the sports-, culturaland student-associations as well as some cultural places in Eindhoven, such as the Van Abbe museum. The weather allowed for a beautiful ride or walk across the city and some activities. Dinner was served at the Flux field, but it was not sufficient to satisfy the freshmen’s hunger. So, some rather unhealthy desserts were bought at the local snack bars. After these desserts, the second festival started and an even better dessert was served: beer! Tonight, there was an amazing performance by Zanger Kafke, who unfortunately did his performance in Dutch. Nevertheless, everyone enjoyed his singing. Then, after the festival, a last-minute party was organized at the Costa on Stratumseind which turned into a real Japie party of which everyone has either very good or no memories. When this party was over at 02:00 hr, again some groups continued to party at the study associations until the early hours.

Thursday This morning, the kiddos and parents could sleep for one more hour than the other days. But the IntroCie and candidate-board were, once again,

present at 09:00 hr. Today, the first hangover breakfast was served and it was very well received by the freshmen. After breakfast, the parents still seemed hungry, so they made some pancakes with their kiddos and even two members of the IntroCie had time to enjoy a nice pancake. Then it was time for the freshmen to attend the workshops. The Japieworkshop this year was learning how to brew your own beer and it was given by Boris Zwaan. During this workshop, Boris told the freshmen about the different types of beer that exist and he showed them how to brew their own beer. In addition, each participant above 18 years old could taste 2 beers: Vanderghinste Roodbruin and Blanche de Namur. In the evening, dinner was again served on the Flux field and once again it didn’t fill the huge stomachs of the kiddos so a second dinner was bought by most groups. Now, it was time for the official pub crawl. During this pub crawl, the groups visited six of the best bars on Stratumseind and they ended in the Costa where the party continued until it was time to

“Looking back, we as the IntroCie can only say the following: We had Alkynes of fun!”

leave for the student associations for the all-nighter Thursday. Most groups partied all night at SSRE but one group also had an amazing night at Demos and the party went on until sunrise.

Friday On Friday morning, most kiddos arrived early, but the IntroCie and the candidate-board arrived even earlier so breakfast was almost ready by the time all the freshmen arrived. Some sleepy heads were refreshed with a nice stream of water provided by members of the committee and candidate-board. After breakfast some games were played to keep everyone awake until it was time for brunch. When the brunch was over, the remaining kiddos went to the Flux field for Student in Motion where they performed a Haka to keep their spirits alive. Finally, it was time for one last party with a live performance and plenty of beer and Desperados. At the end of the day, only three freshmen had survived until the end, and they have our utmost respect. Looking back, we as the IntroCie can only say the following: We had Alkynes of fun!

WRITTEN BY:

The IntroCie The IntroCie wanted to share the best parts of a memorable week.

What’s coming next? At Dow, we combine one of the broadest technology sets in the industry with asset integration, focused innovation and global scale to achieve profitable growth and become the most innovative, customer centric, inclusive and sustainable materials science company. Dow’s portfolio of performance materials, industrial intermediates and plastics businesses delivers a broad range of differentiated science-based products and solutions for our customers in high-growth segments, such as packaging, infrastructure and consumer care. Our company delivers innovative products that make the world better. We look across the life cycle of our products to insure our innovations continue to improve, creating a world that is better because of our products. What materials will tomorrow be made of? Join us and help shape the future. Let’s find what’s next. Visit careers.dow.com to continue the conversation.

Red labelled ‘stresskippen’ From the Lockup

In the first three weeks of our bachelor program, a lot of things happened already. This is one of them; Gullible as we are, we reacted enthousiastically when Teun asked us to help him. Little did we know we would be ‘locked in a dark small chamber’ and had to write an article in one hour. No subject given. We would like to advise our future selves to never say yes to Teun, but also to make the most out of the incredible years ahead of us. Let’s go! To the 120 students in our year: we would love to get to know you. Okay, maybe not your dog’s cousin’s name, but you get our point. A quick chat after the lecture, a drink in the F.O.R.T. or sharing a drunken memory is all it would take to know your name and what you’re all about. We started with the same red TU/e label on our backpacks and we would like to end our bachelor program with all your names printed in red in our hearts. So to all freshmen (and also all the other Japie’s, yes you’re next on the priority list) feel free to come say hey!

What uni experience is complete without a lot of drinks? We would like to be present at the F.O.R.T. for as much fun activities as possible. Starting off with, as soon as Floor turns 18, trying all the beers available together without damaging our livers too much. As not the biggest beerlovers, we’ll really have to show some determination and power through this challenge. On the note of something we love more, we want to invent our own after-exam week drink. After all, what is more fun than mixing the greatest chemicals of all together to forget our failed exams or experiments? The only thing we hope the liquor won’t erase is the Japie song, which we still have to memorize. Thinking about exams, maybe we should learn to be a little bit less like ‘stresskippen’. Up to this point our mental breakdown count is about 3,5. Entrance test of calculus, safety test, first lab report (turned out to be a legit issue for Ulla) and the half we are experiencing while writing this. A little moment of sadness also occurs every Tuesday, Wednesday and Friday for Floor, when standing in front of her closet and realizing it must be a

pants-day today because it is a lab day. This is why we are anticipating a great memory of her showing up in a dress and not being able to participate that day. All jokes aside, we reached our goal (we didn’t know we had) of making it into the T-Licht and writing this article without being too mad at Teun. Maybe it isn’t the worst thing after all. Perhaps we will continue this cycle of confused - stressed - mental breakdown - moment of relief realizing it wasn’t that bad and having a lot of great experiences during our time at the university. Well, whatever comes next, we’ll always know a real lamp is vierkant.

WRITTEN BY:

Ulla Praisa & Anne-Floor den Ouden Ulla and Anne-Floor were placed in lockdown by the editor in chief for a new rubric called “from the lockup”, in which one or two freshmen have one hour to write an article from the lockup.

I write English very well Carte blanche

Academic writing. It is something you cannot get around when you start at a university. Whether it is a small report for a practical course or your bachelor’s or master’s thesis, writing plays a big part in getting your degree. Last year, I followed the academic writing course, which teaches in depth how to improve your academic writing. In this article I would like to share some of the tips and tricks I learned during this course. First, I would like to disclaim that I am by no means a writing expert. I am a student like most of you, so there is still plenty of room for improvement in my own writing. Furthermore, I am specifically talking about academic writing, which can be considered as its own subgenre of writing. If you want to learn how to write a book or a very nice T-Licht article, I do not think you will find these tips of much use. So, after this very nice disclaimer let’s continue to the more useful part.

Academic vocabulary

When writing an academic paper, the vocabulary that you use is very important. Academic papers make use of formal language rather than informal language. I know this sounds rather obvious. Even when

you are an academic writing novice, it is highly unlikely that you will use words such as awesome, wanna be, etc. However, when English is not your first language and you are still improving your vocabulary, some of the differences between formal and informal can be more subtle. For example: not enough vs. insufficient, get vs. acquire or a lot of vs. many/ much. Even though it might now seem obvious which of the two options you would pick, these are very common mistakes and it is wise to try to pay attention to them. Go on the internet and find a list with academic and formal words and try to get into the habit of incorporating them into your writing. However, do not overdo it. Nobody likes to read a text that has so many overly complicated words that it becomes a struggle to get trough it. Remember, academic vocabulary is formal, but not necessarily complicated.

Wordiness

In short, wordiness is using more words than necessary to make your point. This is one thing I have always struggled with. If I can say something in ten words rather than two I most

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likely will, but I have gotten better. Using fewer words is especially important when you have a word limit. Imagine that you will not be able to convey all the important discoveries you made in your research due to the simple fact that you use too many words for everything. Let’s give an example: “The intention of the program is to bring students into contact with…” This is not a bad sentence. However, this eleven-word sentence can be rewritten to a sevenword sentence describing exactly the same: “The program aims to introduce students to…” It might not seem like a big difference now, but if you manage to do this for most of your sentences you will end up with more room for important information.

Funnel strategy

The funnel strategy will help you with the flow of your paper, especially your introduction. The principle is quite simple: start very general and then gradually make it more specific. For example, if you must write something about solar cells you might want to start with a few sentences about climate changes and the need for sustainable energy. Start becoming

more specific by writing about solar cells in general and continue narrowing it down until you have reached the specific type of solar cell you have researched.

“You will never get better unless you write, write and then write some more.” Hedging

This is probably one of the most important tips. One thing you have to remember when writing is that words have power. Changing one word can change the meaning of your entire sentence. Hedging means that you try to use words that are purposely vaguer and less direct. These hedging words are your first line of defense and can safe you from critical questions. Try to note the difference between the next two sentences: “Human

expansion of the greenhouse effect is the cause of global warming.” and “It could be that human expansion of the greenhouse effect is the cause of global warming.” In the first sentence, you are stating a fact, which is very hard to defend. By using hedging words you acknowledge that there is a degree of uncertainty in your statement, which is true for most academic discoveries.

Reporting verbs

This tip is important when writing a literature review. By changing the reporting verb, you can subtly show your opinion on the literature. For example, “Wang (2004) assumes…” indicates that you doubt that it is true and that you believe that it can be disproven. Now if you change the word ‘assumes’ to ‘states’ you will change the meaning of your statement. “Wang (2004) states…” has a more neutral tone and indicates that you believe it to be neither correct nor incorrect. So, pay attention to which word you use and try to find one that suits your opinion.

Just write

Writing, like most things in life, takes practice. You will never get better unless you write, write and then write some more. Keep in mind that the first thing you put on paper, will most likely be horrible. But at least then you have something on paper, which you can rewrite. After you have rewritten it, let somebody else read it to give you feedback. Try to take this feedback into account to improve your next writing piece. These are all the tips I will share with you today. I could add many more, but then I would just be reciting the entire academic writing course, which is not what I intend to do. I hope, however, that you will find the few tips I shared useful!

WRITTEN BY:

Woutje ter Weel Woutje wanted to share some tips that she found useful for improving your academic writing.

Alchemical prize summoning ritual Puzzle Before the chemists, there were alchemists. They tried to convert lead to gold by magical means, using the four elements. Most of the alchemical knowledge is lost or disproven. However, the T-Licht editorial board managed to find a working ritual. By placing the four elements on the board below, you might be able to turn this page into a prize! Fill the ritual board with the signs for the four elements in each square or rectangle, no matter the size. But make sure that the same symbols never touch, not even diagonally, else the page might explode!

Last edition, the winner, Martijn De Belie, received a SodaStream Spirit One Touch. This time, the winner will receive a Philips Mini beamer and a Netflix gift card, courtesy of ExxonMobil. In order to win this prize, you need to mail a scan of the finished puzzle to tlicht.st@tue.nl before the 8th of December. Disclaimer: only regular members are eligible for the prize.

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Just make up your mind Letting off some steam

Starting from September 2015, the government in the Netherlands decided that students would no longer receive the so-called “basisbeurs”. Although many pretty promises were made to comfort the worrying students (such as that the 800 million Euros that would be saved with this measure and be reinvested in education),[1] here we are, five years and many poor students later, and the government is talking about re-introduce the “basisbeurs”. For all foreigners reading our beautiful magazine, or maybe some very young freshmen who never heard of the “basisbeurs”, I’ll introduce it first shortly. Before September 2015, every student would receive a certain budget from the Dutch government, to finance your studies. The amount depended on whether you still lived with your parents or not (resp. €295.63 or €106.18).[2] So yes, this meant that every month you would receive “free money” from the government to pay for your tuition fee, books, room or beer.

that students felt when it was decided to cancel the “basisbeurs”. Luckily the “aanvullende beurs” stayed, but this did not relieve the anger. To replace this system, a new one was invented, the so-called “leenstelsel”. This means that students can loan the money from the government for exceptionally low interest and pay it back over a course of maximum 40 years. This is not necessarily a bad system in my opinion, but you can imagine that I would also rather get my money without having to pay it back.

Moreover, there was more support for students whose parents are struggling to get by, called the “aanvullende beurs”. This of course sounds like heaven, so you can imagine the anger

After many reports and protests by students, the government decided already in 2018 to half the tuition fee for new freshmen to encourage them to still go studying.[3] However,

apparently this did not have the desired effect, since the start of September 2019, suddenly more and more political parties want to reintroduce the “basisbeurs” and get rid of the loans. At this point, my studies are almost over and it will probably not influence me anymore. However, I think it is a shame to see the government making a mistake that now influences 5 years of students, by putting them in debt unnecessarily. If they decide to revamp the “basisbeurs”, I hope there will be some kind of compensation for all duped students. [1] https://www.geld.nl/lenen/service/sociaalleenstelsel-uitleg [2] https://duo.nl/particulier/oud-stelsel-hboen-universiteit.jsp [3] https://www.rijksoverheid.nl/onderwerpen/ hoger-onder w ijs/halver ing-collegegeldeerstejaars

WRITTEN BY

Bart van den Bersselaar Bart wanted to shed a light on the current situation around student funding in the Netherlands

Pretty pancake preparation Chemistry in real life

Pancakes are amongst the most favorite dishes of many people all around the world. The best thing is, that these round treats can be eaten at any moment of the day. Breakfast, lunch or dinner, it does not matter but the first one you make is always a disaster. Every country has small differences in how to create or serve this classic, but here weâ&#x20AC;&#x2122;ll look into the general chemistry behind this phenomenon. The big question is, how do you create one solid structure with the right, color and taste? The magic starts when the dry ingredients (flour, sugar, baking powder, baking soda and salt) are combined with their counterparts (milk, eggs and butter). The flour namely holds the proteins glutenin and gliadin. When dry, these proteins are nearly immobilized and unable to react, but when mixed with liquids there is more movement. This results in the polymerization of gluten. Eventually, the mixing will allow a sticky crosslinked network to be formed, which is able to trap air bubbles. Next to that, the pancake

also begins to get some sort of solid structure. However, it still remains more gooey-like than a something you can hold in your hands. Now that there is room to trap bubbles in the mixture, it is time to supply the pockets with the desired product. For this, a leaving agent is needed; in this case the baking soda. This alkaline powder consists of sodium bicarbonate and can act as a base. On the other side, there is the acidic buttermilk. A typical high school acid-base reaction results in the formation of CO2 to have a gas phase that can be trapped. In case regular

milk is used instead of the buttermilk, baking powder can be used. This ingredient already includes both the acid and the base. In powder form, the mixture is inert. But adding some liquid will make contact possible, resulting in the desired bubbles to pop up. When the trapping starts, it is advisable to quickly start cooking the pancakes, since over time the gas will escape and ruin your product.

â&#x20AC;&#x153;With this kind of reaction it is possible to link amino acids and sugars.â&#x20AC;? Luckily, technology has evolved the function of baking powder. Nowadays, the reaction will work in two separate rounds. After heating, a second stash of acid is released, making it possible to create extra CO2 during the cooking itself. Therefore, it

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is no disaster when not all the batter can be cooked right from the start, but the sooner the better as can be seen in the picture. It directly also shows the origin of the fluffiness. Now that the pancakes are light and have structure, it is time to add some taste and scent. After all, these two parts are the main reason this meal is loved so much. This is done via a Maillard reaction (named after the French Louis-Camille Maillard). With this kind of reaction it is possible to link amino acids and sugars. The first step is a reaction between the amino group of the amino acid and the carbonyl group of the sugar. This leads to an unstable glycosylamine, which rearranges to a more stable ketosamine. In the third and final step, a brown nitrogenous polymer is formed. Exactly the color we often see on pancakes. The optimal conditions for this reaction to take place are a temperature around 140 to 165 ° C. If you surpass this point, caramelization can also take place. This will cause the sugars to react with peers or even decompose. This is actually not a bad thing, since it also contributes towards the flavor and coloring. A second ‘requirement’ is an alkaline environment. Since some acidic components have also been used, the pH can be lower than 7. To rearrange

Hopefully this information somehow was worth reading. It will not make you a better cook, since it does not include the perfect pancake recipe. At least you will be able to brag to your friends when baking next time. Or let someone else cook for you and just enjoy the best part of this all-time favorite. this equilibrium to a more preferred value, baking soda is here for the rescue. Be gentle though, adding too much will tan the pancake towards a burned stadium. Now that all the steps have been highlighted, a summary can be made of all the ingredients and their specific functions within the process. First of all, the flour is needed to create structure. This can only be achieved with the liquids mostly contributed by the milk. The baking powder/ soda are needed to create CO2 or set the right environment for the last reaction. That is also where the eggs come in handy with their proteins. The addition of sugar finishes the job. If you want to create something more than just a pancake, try food coloring. They work well on pancake batter, as long as you keep the colors separate. At Japie there have been several occasions at which a spectrum of colored pancake batter was available.

WRITTEN BY:

Douwe Orij Although one of the worst cooks, he still wanted to show some chemistry in our daily lives.

References: [1]

O’Sullivan, K. (2017), The science

of a fluffy pancake, Australian Academy of Science,

https://www.science.org.au/curious/

everything-else/science-fluffy-pancake [2]

Bhatia, A. (2012), Pancakes, served

with a side of science, Wired, https://www. wired.com/2012/07/pancakes-served-with-aside-of-science/ [3]

Unknown (2013), Celebrate Your

Pancakes with a Side of Science!, Science Made Fun, https://sciencemadefun.net/blog/ celebrate-your-pancakes-with-a-side-ofscience/ [4]

Trontz, E. (2013), The Scientific

Secret of Fluffy Pancakes, Scientific American, https://www.scientificamerican.com/article/ bring-science-home-gluten-pancakes/ [5]

Unknown

(2019),

Maillard

reaction, Wikpedia, https://en.wikipedia.org/ wiki/Maillard_reaction

Towards templating 2D magnetite crystals

via bio-inspired approaches PhD article At SMG (Materials and Interface Chemistry), we are working towards novel inorganic-organic hybrid materials. Our research can be divided into two main lines: bio-inspired materials and biological materials chemistry. We are intrigued by and find inspiration from nature, where well-defined arrays of crystals are formed in organic matrices, in aqueous media and at ambient temperatures. I am working on magnetite, a naturally occurring iron oxide, known for its excellent magnetic properties. Magnetiteâ&#x20AC;&#x2122;s magnetic properties depend on the crystal size and shape. In living organisms, like magnetotactic bacteria, the formation of magnetite is precisely regulated to meet a specific biological function. In the example of magnetotactic bacteria, specialized vesicles (magnetosomes) with associated transmembrane proteins are directing nucleation and growth of the magnetite crystals. Achieving a similar level of control over crystal shape and size thus far has been challenging in synthetic procedures and the processes behind templated magnetite mineralization are still poorly understood.

and shape of the magnetite crystal into a certain shape. The targeted crystal shape in this project is 2D platelets. 2D platelets of magnetite might have appealing magnetic properties, such as magnetic vortices.[1] Magnetic vortices result in in-plane magnetization, which is a topologically more stable magnetization state compared to conventional magnetized materials. Because of their topological stability, magnetic vortex behavior materials are less affected by neighboring crystals. This makes them appealing candidates in, for example, magnetic data storage applications (Figure 1).

Little work has been done on templated magnetite formation so far. In a bio-inspired approach, we are investigating templated magnetite growth, to precisely tune the size

A suitable template to direct magnetite growth into 2D crystals is collagen. Collagen is known to template the formation of calcium phosphate into 2D platelets, but also lepidocrocite

Figure 1. Schematic representation of magnetic nanoparticles in data storage devices.

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(Îł-FeOOH).[2 ] To mineralize collagen with magnetite, magnetite formation outside the collagen matrix should be inhibited. Poly(aspartic acid) (pAsp) is known to promote intrafibrillar mineralization of collagen, but also to mimic the function of magnetosome proteins and thereby influence magnetite growth. The synthesis route towards magnetite, a so-called co-precipitation, which is used in my project is mimicking the formation pathway as found in magnetotactic bacteria.[3] We start from a solution of Fe3+ and Fe2+ , in a 2: 1 ratio. This ratio is important, as magnetite is comprised of the same ratio of iron(III) and iron(II) in its crystal structure. Thus, to prevent oxidation of the iron(II) species, all experiments are performed in a glovebox under nitrogen atmosphere. Upon the continuous and controlled addition of base, while carefully monitoring the pH, first a ferrihydrite intermediate is formed in the absence of additives (Figure 2, left). When the conversion towards ferrihydrite is complete, the pH quickly rises, until pH â&#x2030;&#x2C6; 7. At this point, Fe2+ is reacting with hydroxide and the

Figure 2. Left: Evolution of pH in a co-precipitation reaction without additives. Insets give a schematic representation of the intermediates and products forming during the reaction. Right: TEM image of the formed magnetite particles. Scalebar is 50 nm.

already formed ferrihydrite to form magnetite, which is spherical in appearance and approximately 13 nm (+/- 5 nm) in size (Figure 2, right). Using poly(aspartic acid), the product formed directly after the co-precipitation reaction is a green rust, an iron oxide with both Fe2+ and Fe3+ in its crystal structure, but in a non-stochiometric ratio. Over time, however, the formation of facetted magnetite crystals is observed (Figure 3, left). If we perform the same reaction in the presence of collagen and poly(aspartic acid), first a green rust is formed again, but over time, the formation of small lepidocrocite (iron oxy-hydroxide) platelets is observed inside the collagen matrix (Figure 3, center). We do not yet fully understand the role of the intermediate phases, like green rust, nor why lepidocrocite has formed inside the collagen matrix instead of magnetite.

Currently, we are working on the optimization of collagen mineralization with magnetite. To do so, we are performing timeresolved experiments to gain a deeper understanding in the intermediates that form during the reaction. Although we use many characterization techniques, such as Raman spectroscopy and X-ray diffraction spectroscopy, our specialty is advanced electron microscopy. Time-resolved cryo-transmission electron microscopy (cryo-TEM) is a technique that is extremely suitable to look at the intermediates that form during a reaction.

sample into liquid ethane, cooling it so rapidly that ice cannot crystallize. This results in a very thin layer of vitreous ice, which is transparent under the electron beam, allowing us to visualize the sample in a frozen state. To exclude oxygen during the vitrification process, we have connected a vitrobot to a glovebox (Figure 4), to prevent oxidation of the reaction intermediates. Using oxygen-free time-resolved cryo-TEM, we hope to gain more insight about the precursor and reaction intermediates. That hopefully leads to the design of a more rational approach towards templating magnetite inside a collagen matrix.

WRITTEN BY:

Bernette Oosterlaken Bernette is half-way the third year of her PhD in the group of Materials and Interface Chemistry. She is working on magnetite, a magnetic iron oxide.

For Cryo-TEM, we first apply a bit of sample on a TEM grid. We do this in an environment with 100% humidity inside a vitrobot to prevent evaporation of the sample. By a process called blotting, we remove excess liquid from the grid, so that the remaining liquid forms a very thin layer. We then quickly shoot the [1] T. P. M. Almeida, A.R., A. Kovรกcs, W. Williams, P. D. Brown, R. E.

Dunin-

Borkowski, Science Advances 2016. [2] Y. Xu, F. Nudelman, M. J. M. Wirix, B. Cantaert, D. H. Merino, G. Portale, P. H. H. Bomans, C. Ottmann, H. Friedrich, W. Bras, J. Orgel, F. C. Meldrum, N. A. J. M. Sommerdijk, 2018. [3] J. J. M. Lenders, C. L. Altan, P. H. H. Figure 3. Left: formation of facetted magnetite particles in the presence of poly(aspartic acid) after 6 weeks. Center: Formation of lepidocrocite platelets inside the collagen matrix in the presence of poly(aspartic acid). Right: A direct connection between the glovebox and a vitrobot allows for oxygen-free vitrification of samples for cryo-TEM.

Bomans, A. Arakaki, S. Bucak, G. de With, N. A. J. M. Sommerdijk, Cryst Growth Des 2014, 14, 5561.

Gimme Danger, but make it gluten-free, please. Beer of the Quartile

After many years of sub-par gluten free beers, some are now climbing to the tops of the beer-achievements, namely being chosen as Beer of the Quartile. For this edition of the Beer of the Quartile, an unlikely contender swooped in to take the price. None of the seven stock managers present for the tasting are gluten intolerant, but most of us were, to some extent, glutenfree beer intolerant. However, the nice thing about a surprise is that you don’t see it coming. And we definitely didn’t expect this beer to be our Beer of the Quartile. Maybe you think seven stock managers is a lot for one beer tasting evening – can you even name seven stock managers? – but it turns out that even if you have worked at a large oil company for a few years and you are just at university to present a company case, you will still report for duty on the Beer of the Quartile. Add to this the fact that we were choosing a beer for one our favorite seasons – the fall , when the

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days become darker and so do our beers – and a great night full of critical beer reviews is guaranteed!

After we had gone through several beers that were deemed too light for this season, such as a saison with tangerines

and a few double IPA’s, we got to the serious candidates for the throne. There was much debate as the tasting intensified and it eventually came down to two final contenders. In one corner of the boxing ring was a somewhat well-known classic, an anniversary edition of an anniversary Trappist beer, namely the 2019 special edition La Trappe Isid’Or. For the tenth anniversary of this beer, which was originally brewed to celebrate the 125th birthday of the Trappist brewery, the monks from De Koningshoeven used two types of experimental hops, but left the rest of the recipe the same, resulting in a familiar taste with a new fresh twist. In the other corner stood what most would probably regard as the underdog. However, since the brewery was very familiar to most of the present stock managers, we knew this underdog would be ready to rumble. With the exception of the gluten-intolerant, to the most the words “gluten-free” on a beer bottle usually seem to be more of a warning than they are a recommendation. However, on this particular bottle, next to the words “gluten-free” we also found “Pohjala” and “Imperial stout”. And if you find a bottle from the Pohjala brewery that contains imperial stout, awesomeness is guaranteed.

Although the initial match between the two contenders ended in a tie, after some afterthought we decided that the Pohjala beer has more of the spirit of the Beers of the Quartile. Namely being something new and unexpected. Something great which you probably hadn’t heard of before or wouldn’t buy in the supermarket. While nowadays more and more breweries have a decent gluten-free option, up until a few years ago those beers were not only very few and far in between, but also somewhat far from the term “decent”, as some of the guests of the F.O.R.T. may still have nightmares about the notorious Mongozo Buckwheat White. In recent years however the beer industry has gotten quite far in making sure that the gluten-free beers are enjoyable to everyone, even for those who also have the choice of drinking regular beer. As you might know the main target groups for everything that is gluten-free are the people suffering from Celiac disease and Hipsters.

“Most of us were, to some extent, gluten-free-beer intollerant.” Especially for the first group it is quite vital that the beer really doesn’t contain any gluten. Brewers usually achieve that in one of two ways. First one is by using cereals like rice, corn or buckwheat instead of regular barley malts for the brewing of the beer, as these cereals do not contain any gluten to begin with. Option two, and this is where our champion stands, are gluten reduced beers.

Here is where things get interesting for us, chemists. The way this process works is that the brewers first make the beer according to a regular recipe, using wheat, barley or rye. When the beer is ready, they would add an enzyme to the batch called Clarex. The task of the enzyme is to break down the gluten molecules into smaller molecules, which do not trigger your body the way gluten would. Both types of beer pass the same tests to prove their glutenfreeness. They get taken to the lab and analyzed. If the results show that the gluten content is bellow 20ppm- Great! You have yourself a gluten-free beer! So now that you know perhaps more than you ever really wanted to about gluten-free beers, let us introduce you to this particular beauty. To start from the brewery, ‘Gimme Danger’ comes to us all the way from Estonia. The brewery – Pohjala - was founded in 2011 in Tallinn, Estonia by a group of home brewers. Not too long after, their current head brewer Scotsman Chris Pilkington joined the company, after having worked for another brewery you guys might have seen around the F.O.R.T.- Brewdog. As we mentioned earlier Pohjala is well known in the craft beer world for their amazing dark beers, dating all the way back to their very first beer Öö (meaning Night), which many believe kickstarted the Estonian craft beer scene. Now onto the beer itself. As you may or may not know, we stock managers really love having a nice dark stout. With its rich aroma of roasted chestnuts and toffee, mingling with the full bodied taste of dark chocolate and pecans, mixed with a slight bitterness, this 10.5% Imperial stout is sure to warm you up, when the cold autumn rains come around. So in a nutshell the moral of the story, I guess is don’t judge a beer by its gluten content. Because nowadays, you can apparently find gluten –free beers that can put to shame many regular craft beers.

WRITTEN BY

Vilena Petrova Dennis Thuy Since the opinions of seven stock managers had to be distilled into this two-page article, we decided that writing the Beer of the Quartile was now a two person job.

A ‘domestic’ internship for a more sustainable and circular future Internship

We all know Japie as a study association, which manifests in the numerous education meetings and career activities. However, you cannot really be a study association without organising a symposium once in a while. To begin with, I will give a small introduction about the company. Petrogas started as a company that mainly worked for the Dutch urban gas industry, for example building the first LPG filling station in the Netherlands. In Eindhoven, Petrogas has its own warehouse, welding, machinery, and assembly halls. Thus, everything that is designed by the engineers will be assembled next to your own office. This means that you can see the equipment that you designed in real life, which is really cool and informative! Staying in the Netherlands was a conscious choice, because for me, this internship is intended to orientate on your future job. As I do not want to start my career abroad, it would be

quite silly to do an internship abroad. Besides, as this is the only internship that is mandatory within the entire study, I think it is just as important (if not more important) to see what a Dutch company has to offer. Still, I had to adapt to a certain new culture: “the working culture”. I experienced that working in the industry is in most cases very different compared to the academic life we are used to function in. Suddenly, it is not only about details anymore, but about keeping the customer happy. Furthermore, a company is somewhat less structured, as sometimes an assignment has to be done very quickly (within a day), whereas other times an assignment can take months to complete (which you did not expect).

Now you are obviously wondering what my internship project is all about! Well, over the years Petrogas started focussing more and more on sustainable and renewable processes. This is where my internship project comes in, which is executed for Renasci. Renasci’s vision is to create a circular economy, contributing to a world where waste is seen as a valuable resource rather than a burden. My internship project is based on the recycling of waste paper and cardboard. For the project I am developing an Aspen Plus model that describes the entire plant for the production of second generation bioethanol from paper and cardboard waste. Hopefully, with this model, the entire plant can be designed and built for a more sustainable and circular future!

WRITTEN BY:

Esther Montrée Esther wanted to share some things about her “domestic” internship and that you do not necessary have to go abroad for a nice experience.

T-Licht Issue 24.1

Hot, Hotter, Helix Thomas on research

Last summer the national heat record of the Netherlands was broken after 75 years. With an official 40.7 degrees Celcius, Gilze-Rijen was the hottest of the whole Netherlands. For the master and bachelor students who had to do their thesis during the summer break, the cool Helix building offered salvation. Nevertheless, not all places in and around the Helix building are that cool. Someplace was even hotter than the outside temperature. Can you guess which one? Let’s first start with the coolest rooms in the building. It may come to no one’s surprise that STC 0.01 and all the .91 rooms, which are on all floors, are the coolest places in the Helix building to work. With the absence of windows, these rooms are all within a 23.3 and 23.5 degrees range. ‘De Vrieskist’ (student room on floor 1 West) was therefore with 24.5 degrees not the coolest place. Some laboratories were of course cooler, but since these are specially designed to have a precise temperature range, this is less of a surprise. The difference in temperature across the building was more than expected. At the stairs, a 2-degree difference was observed between ground floor and floor 4. The west-side of the building, which has the sun in the afternoon was 28.0 degrees, which was 2.3 degrees cooler than the eastside.

On the second place was the emergency exit staircase on the South-West side of the building with 39 degrees. Since it was a Thursday, also the F.O.R.T. could be measured. At 16:00 hr the temperature was 24 degrees, but since the doors were open and some people stayed inside, the temperature during the drink approached the 30 degrees. Nevertheless was it a perfect place to cool down. And the hottest place? That was the walkway between the Helix and Matrix building, with an extreme 47 degrees Celsius! Since this was not measured in the direct sunlight in the walkway, it is likely that with a black pan, you would be able to cook an egg.

WRITTEN BY:

Thomas Werkhorst Since the walkways are always either extremely hot or cold, Thomas was curious to see how hot they could get.

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Researching gas hydrates for summer Carte blanche

Alternating between two universities on opposite ends of the globe in a span of two months was not an experience I anticipated at the start of last year. Yet this summer I was lucky enough to work as a research intern for the University of Western Australia, in order to develop some research expertise on natural gas hydrates, a field that is rapidly gaining the interest of many energy companies around the world. Gas hydrates themselves are â&#x20AC;&#x2DC;icelikeâ&#x20AC;&#x2122; formations of water that contain natural gas molecules in their molecular cavities, created in low temperature and high pressure environments. Avoidance strategies are key for many oil and gas companies, since these hydrates end up blocking offshore pipelines, costing them valuable resources. The prevalent solution in recent years has been to inject mono-ethylene glycol into the pipe, however this convention is a drain in terms of cost. Hydrate management, which includes providing a precise description of how hydrates form and subsequently eliminating them, seems to be the only alternative worth pursuing.

However this is difficult for a number of reasons, the main issue being that hydrate formation is stochastic. In other words, hydrates grow randomly, and to figure out when and where they will appear becomes a guessing game with severe financial penalties for wrong answers. The team I worked in focused on finding this precise description of hydrate nucleation by carrying out vast amounts of continuous experimentation and obtaining huge masses of data. The project itself is funded by major energy companies for the aforementioned reasons, so the pressure is on to find meaningful results.

Regardless, my time working in Perth was enriching in more ways than one. I had never worked on a research project operating on such a large-scale, in a completely different country at the same time! Tasks were never mundane, whether it was finding solutions for technical issues with experimentation, theorizing hypotheses and testing them onthe-go, or just working alongside a great team. While certain elements of hydration formation phenomena are still poorly understood (e.g. the memory effect), to be operating on the boundaries of scientific knowledge was not as overwhelming as I had initially expected, but rather, liberating.

WRITTEN BY:

Aaryana Kunte Aaryana wanted to tell everyone something about her time as a research intern at the University of Western Australia.

In Conversation with Toine van Heeswijk and Magda van der Tol Interview

Most of us walk past them multiple times each day but have you ever stopped for a chat with these two jolly receptionists of the Helix building? Here is an opportunity to hear from Magda and Toine in conversation with Thomas and Limi!

What brought you to Helix?

What is the best aspect of working at the Helix?

Magda: In 2006 I came to Eindhoven from Enschede and ever since I have worked at a police station and some other locations. Since January this year, the Helix building is my permanent place, so you can find me here almost every day. Toine: I have been working for the university since 1998 but I live in Best. I used to work for the security of the university, but for one and a half years I’m stationed at the Helix building. This is mainly due to my age since security work demands me to do night shifts as well.

Both (answer immediately): The people! They make a big difference. They are particularly friendly and nice.

What is the worst aspect of working at the Helix? Toine: The students! (Everyone laughs.) No, there is nothing I can think of that I would like to be changed here. (Magda agrees.)

How is it like to work here generally? Have you encountered any strange or funny situations? Magda: Most of the time people are looking for directions to rooms in the building, but we also manage a lot of rooms and handle their keys. As receptionists, we also take up the role of the emergency response team (BHV), for which we also received special training and in case of an emergency we have to help of course. Toine: Apart from directions and keys, quite a lot of people also ask for band-aids. I haven’t encountered strange situations at the Helix (yet), but in my previous job as a security guard, we encountered a funny situation in which two students (a guy and a girl) went to the sports center after a campus event. Initially, we weren’t sure what their intentions were and thought they were going to break into the building since they climbed on top of the roof. Then it became quite clear that they weren’t breaking in but were having intercourse on the roof! When we arrived at the location and asked what they were doing and whether they

Quickfire questions: Magda: - Favourite food: French cuisine - Favourite holiday destination: Spain - Favourite drink: No specific drink - Favourite sport: Dancing - Summer or Winter: Summer - Mountains or Beach: Beach - Alternative Profession: (After a long thought...) Dance teacher!

(pointing at this belly) “After a certain age it’s hard to get rid of this.”

Toine: (After Magda commenting on how Toine does a lot of sports.) In my spare time, I like to go on walks/ hiking. I also like to go on weekend trips with my partner. I try to stay fit by going to the gym three times a week but as you see (pointing at his belly) after a certain age it is hard to get rid of this.

were okay, the guy answered saying, “Yeah, everything is fine” and carried on. That was quite a strange situation. (Magda asks whether it wasn’t cold.) No, it was a warm summer day. (Everyone laughs.)

WRITTEN BY:

What do you do in your free time?

Thomas Werkhorst Limi Kalapurackal

Toine: - Favourite food: Something with fish, especially salmon or trout - Favourite holiday destination: Austria - Favourite drink: (Alfa) beer or Obstler (Austrian schnaps) - Favourite sport: Boxing - Summer or Winter: Summer - Mountains or Beach: Mountains - Alternative Profession: Becoming the King

Thomas and Limi wanted to tell everyone a little about the people you see every time you walk into Helix.

Magda: I enjoy Indonesian dancing and rock and roll. My partner plays the bass guitar, which I like to listen to. (Upon asking if she plays any instruments.) No, I just dance to his music. (She smiles a little.)

De intro, wat een feest Het Y van de Huismeester

Een van de weinige voordelen van de Universiteit als werkgever is dat er ieder jaar een karrevracht aan nieuwe studenten de faculteit komt bezoeken. Studenten die absoluut niet weten wat hun te wachten staat tijdens Intro en het daarbij horende voorstelrondje bij de huismeester en ons hoofd logistiek Dr. Ir. Paol. Natuurlijk zijn wij altijd in voor een grapje en het is iedere keer weer een uitdaging om dit gegeven voor de eerstejaars zo lang mogelijk verborgen te houden. Dit jaar had ik voor het logistiek centrum met afzetlint een parcours uitgezet zoals je bij de meeste luchthavens ziet voordat je de bij de douane bent. Inclusief de bordjes met de wachttijd vanaf diverse tussenpunten. Intussen ben ik al lang niet meer verbaasd dat iedereen netjes deze route volgt zonder onder het lint door te kruipen, vragen waarom deze er is, of dit om andere redenen te weigeren. Op het moment dat men in de ruimte van Dr. Ir. Paol was, werd je welkom geheten door Ruud met een verhaal wat je ook kunt verwachten

als je een gesprek aangaat met een dronken dakloze alcohol verslaafde junk in de stationshal van Eindhoven. Mocht de cultuurschok voor menig buitenlandse student niet al groot genoeg zijn na zo’n verhaal zag ik menig student ook nog denken “waarom ben ik op deze wereld en hoe kom ik hier zo snel mogelijk weg”. Na dit min of meer serieuze voorstelrondje werd om het ijs wat te breken door ons voorgesteld om per groepje een afgevaardigde te sturen die ervaring zou hebben met het voetbalspel. Natuurlijk was er in bijna ieder groepje wel iemand die zich enthousiast beschikbaar stelde om dit spel met ons te spelen.

In het voorgestelde spel was het de bedoeling om een pingpongbal, die door ons aangegooid werd, zo precies mogelijk terug te koppen zodat wij deze gemakkelijk konden vangen. Natuurlijk is dit gezien het gewicht van de pingpongbal bijna onmogelijk, zodat er door ons steeds op gehamerd werd meer kracht te zetten bij het koppen. Het was dan ook mooi om te zien dat wij bij de derde worp geen pingpongbal maar een rauw ei gooide die, uiteraard, uiteen spatte op het voorhoofd van het slachtoffer. Dat bracht natuurlijk bij veel omstanders grote hilariteit terwijl andere nog wat langer de tijd nodig zullen hebben om te begrijpen wat er nu eigenlijk is voorgevallen. Hopelijk kunnen ze bevatten dat het een grap zou kunnen zijn. Voor alle eerstejaars, succes met de studie en onthoud de lijfspreuk van onze Dr. Ir. Paol “Mens Agitat Molem”.

GESCHREVEN DOOR:

Michel Scheepers Michel heeft, zoals altijd, de eerstejaars met veel plezier geplaagd.

T-Licht Issue 24.1

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T-Licht 24.1

Articles inside

Interview: Toine van Heeswijk & Magda van der Tol

Het Y van de Huismeester: De intro, wat een

Carte Blanche: Researching gas hydrates for

Thomas on research: Hot, Hotter, Helix

Beer of the Quartile: Gimme danger, but make it gluten-free, please

Puzzle: Alchemical prize summoning ritual

Internship: A ‘domestic’ internship for a more

PhD article: Towards templating 2D magnetite crystals

Chemistry in real life: Pretty pancake

Letting of some steam: Just make up your mind

Carte Blanche: I write English very well

From the lock-up: Red-labelled stresskippen

Science news: Super plants

By the Chairman: Why less can be more

Japie survival guide: Money saving tips

Spraakwater: Graduating, what else?

Introducing: Roy Wink and Aaryana Kunte

Introduction week: On your mark, get set

Culture shock: Happy days in Belfast

Education: Luckily I’m not alone