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NANO-ENABLEDAGROCHEMICALS INAGRICULTURE

NANO-ENABLED AGROCHEMICALS INAGRICULTURE

DepartmentofMedicinalPlants,FacultyofAgricultureandNaturalResources,ArakUniversity,Arak,Iran

MUHAMMAD ADNAN SHAHID

DepartmentofAgriculture,NutritionandFoodSystemsatUniversityofNewHampshire,Durham,NH,UnitedStates

AcademicPressisanimprintofElsevier

125LondonWall,LondonEC2Y5AS,UnitedKingdom 525BStreet,Suite1650,SanDiego,CA92101,UnitedStates 50HampshireStreet,5thFloor,Cambridge,MA02139,UnitedStates TheBoulevard,LangfordLane,Kidlington,OxfordOX51GB,UnitedKingdom

Copyright©2022ElsevierInc.Allrightsreserved.

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ThisbookandtheindividualcontributionscontainedinitareprotectedundercopyrightbythePublisher (otherthanasmaybenotedherein).

Notices

Knowledgeandbestpracticeinthisfieldareconstantlychanging.Asnewresearchandexperiencebroadenour understanding,changesinresearchmethods,professionalpractices,ormedicaltreatmentmaybecome necessary.

Practitionersandresearchersmustalwaysrelyontheirownexperienceandknowledgeinevaluatingandusing anyinformation,methods,compounds,orexperimentsdescribedherein.Inusingsuchinformationormethods theyshouldbemindfuloftheirownsafetyandthesafetyofothers,includingpartiesforwhomtheyhavea professionalresponsibility.

Tothefullestextentofthelaw,neitherthePublishernortheauthors,contributors,oreditors,assumeanyliability foranyinjuryand/ordamagetopersonsorpropertyasamatterofproductsliability,negligenceorotherwise,or fromanyuseoroperationofanymethods,products,instructions,orideascontainedinthematerialherein.

ISBN:978-0-323-91009-5

ForinformationonallAcademicPresspublications visitourwebsiteat https://www.elsevier.com/books-and-journals

Publisher: NikkiP.Levy

AcquisitionsEditor: NancyJ.Maragioglio

EditorialProjectManager: LenaSparks

ProductionProjectManager: BharatwajVaratharajan

CoverDesigner: MarkRogers

TypesetbySTRAIVE,India

Contents

Contributorsxi

1.Theroleofnanotechnologytocombat majorrecentworldwidechallenges

G.AliMansoori

1Recentproblemsandeffortstowardstheir solution1

References5

2.Classificationofnanomaterialsandtheir physicalandchemicalnature

ShreyaSaha,ShikhaBansal,andManikaKhanuja

1Introduction7

2Origin8

3Classificationofnanostructures8

4Variousphenomenathataffectthepropertiesof nanomaterials20

5Propertiesofnanomaterials21 References27

3.Thetheoryofrelativityeffectin nanoparticles:Decipheringofunknown effectswithnano-puzzleandnano-domini

MehrdadAlizadeh,NarimanMaroofpour,BehnamAsgariLajayer, andMehrnazHatami

1Introduction35

2Unknowneffectsandgaps36

3Thetheoryofrelativityeffect40

4Nano-puzzleasanewconceptandstrategyin nanotechnology41

5DominoeffectorchaineffecttheoryinNPs (Nano-domino)42

6Hypotheticalexperimentdesignforrelativity theoryeffect43

7Conclusions46 References46

4.Eco-friendlyroutesforobtaining nanoparticlesandtheirapplicationin agro-industry

GabrielaAmodeo,RominaGiacometti,FedericoSpagnoletti, PatricioRoma ´ nSantagapita,andMercedesPerullini

1Benefitsandrisksofnanoparticles49

2Synthesisofnanoparticles:Bioinspiration, biomimetics,orallowingnaturedothework51

3NPscomefromnatureandtonaturethey shallreturn53

4Technologicalstrategiesinagriculture55

5Nanoparticlesforbioticstressandplant disease/pestmanagement57

6Nanoparticlesagainstweeds58 Acknowledgments58 References59

5.Themechanismsinvolvedinthe synthesisofbiogenicnanoparticles

ZahraGerami,FaribaFahmidehMahdizadeh,SajadAliyar, BehnamAsgariLajayer,andMehrnazHatami

1Introduction63

2Literaturereview64

3Zincnanoparticles68

4Silvernanoparticles71

5Conclusions73 References74

6.Advancedanalyticaltechniques forphysico-chemicalcharacterization ofnano-materials

MiguelTinoco,Marı´aPilarYeste,andMartaSendra

1Electronmicroscopy80

2Fouriertransforminfrared(FTIR)spectroscopy87

3Ramanspectroscopy89

4X-raydiffraction(XRD)91

5X-rayphotoelectronspectroscopy(XPS)91

6Thermalanalysistechniques93

7NPsinteractionwithsoilsand microorganisms94 References97

7.Nanotechnologyforcargodeliverywith aspecialemphasisonpesticide,herbicide, andfertilizer

SabyasachiBanerjee,SujayitaMazumder,DebasmitaChatterjee, SankhadipBose,andSutapaBiswasMajee

1Introduction105

2Materialsforfabricationofnanoformulations ofpesticides/herbicidesandnanofertilizers126

3Nanoparticlesasactiveingredients132

4Nanoporouszeolite133

5Conclusion135 References136

8.Nano-biofertilizersforenhancednutrient useefficiency

NasrinFazelianandMortezaYousefzadi

1Introduction145

2Nano-biofertilizers146

3Mineralnutrientsdeficiencyinplants148

4Nutrientavailability150

5Effectsofnano-biofertilizersonplant nutrition150

6Biologicalmechanismsofnano-biofertilizers action152

7Benefitsofnano-biofertilizersoverconventional chemicalfertilizers154

8Conclusion155 References156

9.Nanoprimingtechnologyfor improvingcropplantsunderstressful conditions:conceptandmethods

ShabnamKatoch,RichaSalwan,andVivekSharma

1Introduction159

2Conceptofseedprimingtechniques160

3Methodsofseedpriming161

4Thedownsideofseedpriming166

5Recentdevelopmentsinseedpriming167

6Futureperspectives168 References168

10.Applicationsofnanotechnology inprecisionagriculture

NaoremBidyaleimaChanuandMayanglambam ChandraKumarSingh

1Introduction175

2Nanoparticle(NP)synthesisanduptake176

3Commonlyexploitednanoparticlesinprecision agriculture176

4Nanotechnologicalinterventionsinprecision agriculture178

5Futureperspectives184

6Conclusion184

Conflictofinterest185 References185

11.Algalnanoparticlesandtheirpotential applicationinagriculture

MaryamKokabiandMortezaYousefzadi

1Introduction189

2Algaeasbio-nanofactories190

3Microalgae-basedNPsynthesis191

4Macroalgae-basedNPsynthesis191

5Mechanismsfortheroleofalgaeinnanoparticle formation192

6Advantagesofalgal-basednanoparticles193

7Algalnanoparticlesinagriculture194

8Concludingremarksandfutureperspective195 References196

12.Silverandzincnanoparticlesinthe improvementofagriculturalcrops

AdityaBanerjeeandAryadeepRoychoudhury

1Introduction199

2GeneralpropertiesofNPs200

3RolesofAgNPsincropimprovement201

4RolesofZnNPsincropimprovement204

5ToxicitymediatedbyAgNPsandZnNPs: Abriefoverview205

6Conclusion205

7Futureperspectives206

Acknowledgments206 References206

13.Biogenicnanoparticlesandtheir applicationforremovaloforganic contaminantsfromwaterandwastewater

HakimehHajilou,SolmazKazemalilou,BehnamAsgariLajayer, EbrahimMoghiseh,andMehrnazHatami

1Introduction211

2Nanoparticlesandbiogenicnanoparticles212

3Biogenicnanoparticlesforremovaloforganic contaminantsfromwaterandwastewater213

4Conclusions215

References216

14.Stimulatoryroleofnanomaterials onagriculturalcrops

AlonsoMendez-Lo ´ pez,YolandaGonza ´ lez-Garcıa,and AntonioJua ´ rez-Maldonado

1Introduction219

2Biostimulationwiththeuseofnanomaterials220

3Stimulationofgrowthanddevelopmentofcrops withtheapplicationofNMs222

4Stimulationofenvironmentalstresstolerance compounds230

5Stimulationoftolerancecompoundsto pathogenicmicroorganisms230

6Stimulationofbiocompoundsindifferentorgans ofplants233

7Conclusions237 References237

15.Greensynthesisofnanoparticlesand theirusesinagriculture

S.Ramkumar,V.Baskar,R.Skymoon,T.Pooja,B.H.Gangadhar, S.Umadevi,K.SaravanaMurali,I.M.Chung,andM.Thiruvengadam

1Introduction247

2Greensynthesisnanoparticles248

3Roleofnanotechnologyinagriculture258

4Conclusions263

References263

16.Acomprehensivereviewon nanopesticidesandnanofertilizers—Aboon foragriculture

BhavnaSharma,UshaLakra,RajaniSharma,and ShubhaRaniSharma

1Introduction273

2Importanceofagriculture275

3Problemsfacedbypeopleinagriculture276

4Roleofpesticidesintheaugmentationofcrop production276

5Roleoffertilizersintheaugmentationofcrop production278

6Applicationsofnanotechnologyin agriculture279

7Anagriculturalrevolutionbynanopesticidesand nanofertilizersinagriculture281

8Whatarenanofertilizers?282

9Conventionalbulkfertilizersvs. nanofertilizers283

10Environmentalandhealthconcernsof nanofertilizers284

11Whatarenanopesticides?284

12Hazardsassociatedwiththeuseof nanopesticidesandnanofertilizersandtheir management287

13Conclusion288

References288

17.Nano-enabledagrochemicalsfor sustainableagriculture

AbdurRehman,TongQunyi,MuhammadUsman, MuhammadFaisalManzoor,LiZhao,JianguoFeng,and SeidMahdiJafari

1Introduction291

2Pesticide-loadednano-enabled agrochemicals293

3Newtrendsandchallengesforfieldapplicationof pesticide-loadednano-enabledagrochemicals299

4Conclusions302

References302

18.Synthesisofnanofungicidesby encapsulatingfungicidenanoparticles usingfunctionalizedgrapheneandits applicationagainstphytopathogenic Rhizoctoniasolani

NahidSarlak,MortezaPoorhadi,andMansourGhorbanpour

1Introduction307

2Materialsandmethods309

3Resultsanddiscussion311

4Conclusions321

Conflictofinterest321

Acknowledgments322

References322

19.Effectsofnanoparticleson phytotoxicity,cytotoxicity,andgenotoxicity inagriculturalcrops

S.Ramkumar,M.Thiruvengadam,T.Pooja,G.SriThatchayani, J.D.Alwin,B.S.Harish,S.Deva,R.Keerdhana,R.N.Chithraanjane, S.H.Nile,andV.Baskar

1Introduction325

2Phytotoxicity326

3Cytotoxicity332

4Genotoxicity335

5Conclusions338

References338

20.Engineerednanomaterial-mediated changesinthegrowthanddevelopmentof commonagriculturalcrops

COOgunkunle,MAJimoh,SOyedeji,MayankVarun,and GOOkunlola

1Introduction345

2Classesofnanomaterials346

3Relevanceofengineerednanomaterialsin agriculture/cropproduction349

4Beneficialeffectsofengineerednanomaterials ongrowthanddevelopmentofselected agriculturalcrops351

5BeneficialeffectsofENMsonbioticstressofthe studiedcropplants363

6Theecologicalriskassociatedwithnanomaterials inputsinagriculture364

7Conclusion364 References365

21.Biosynthesisandgreensynthesisof nanoparticlesandtheiruseinagriculture

NahidSarlakandMohammadRezaAbdi

1Introduction377

2Biosynthesisofnanoparticles378

3Biosynthesisofnanoparticlesbyfungi379

4Biosynthesisofnanoparticlesbybacteria379

5Biosynthesisofnanoparticlesbyplantextract381

6Nanoparticlesasantimicrobials382

7Plantpathogenicityandnanoparticles383

8Plantgrowthparametersandefficacyof nano-formulationsonthem384

9Conclusions385

10Futureprospects385

References386

22.Nanoparticle-basedsolutionsfor diagnosisandmanagementoffungal plantpathogens

FaezehossadatAbtahi,SeyedehLavinNourani, andMansourGhorbanpour

1Introduction393

2Diagnosisandmanagementofsomefungalplant pathogensinnanoscale395

3Conclusions401

References402

23.Currentstatusandfutureprospects ofnanoparticlesasplantgenetic materialscarrier

VartikaRohatgi,NavakanthVijayChallagulla,and RameshNamdeoPudake

1Introduction407

2Prevalentmethodsofplanttransformationand challengesassociatedwiththem408

3Nanocarriersforgeneticallymodified crops409

4Nanocarriersnon-GMopportunities412

5Advantagesofnanoparticlesforgenetic engineering418

6Needforfutureresearch420

7Conclusion421 References421

24.Currentdevelopmentsin nanotechnologyforthegrowthofdifferent industrialsectors:2010–20

KhushbooDasauniandTapanK.Nailwal

1Introduction425

2Nanotechnologydevelopmentindifferentsectors, 2010–20426

3Nanotechnology:Currentdevelopmentin agriculturesector428

4Nanobiosensorsforfoodprocessing429

5Conclusion431

6Futuredirection431 References432

25.Impactsofnanomaterialsonmetabolic profilingofagriculturalcrops

ZahraZahra,ZunairaHabib,andMuhammadQudratUllahFarooqi

1Introduction435

2NPsactiononmetabolicprofilingofplants442

3Conclusions442 References442

26.Polymericnanoparticle-based insecticide:Acriticalreviewof agricultureproduction

KhushbooDasauni,Divya,PriyankaMathpal,andTapanK.Nailwal

1Introduction445

2Differenttypesofinsecticidesandtheirmodeof action447

3Roleofnanotechnologyinnextgeneration agriculture449

4Nanoparticlesaspesticides451

5Thecurrentscenario454

6Nano-basedinsecticides455

7Chitosannanoparticlesforsustainable agriculture458

8Limitations459

9Futureprospectiveandresearchchallenges459 References460

27.Nano–deliverysystem:Inthe agriculturesector

KhushbooDasauniandTapanK.Nailwal

1Introduction467

2Nanoparticlesandnano-carriersfor agriculture468

3Drugdelivery:Inagriculture475

4Prospectsofnano-deliverysystemtechnologyin agriculture476

5Applicationofnanoparticlesinagriculture andfoodsectorsisquiterecentcompared totheiruseindrugdeliveryand pharmaceuticals477

6Conclusion480 References481

28.Nanotechnology,anewtoolfor agricultureandagroindustry

AnaAngelicaFeregrinoPerez, JoseRosendoHernandezResendiz,CristianJosueMendozaMeneses, LuisAlfonsoPa ´ ramoSerrano,SusanaMerazDa ´ vila,and KarenEsquivelEscalante

1Nanotechnologyintheagricultureand agroindustry485

2Nanomaterials486

3Nanometaloxidesaselicitors487

4Nanometaloxidesforplantdiseaseprotection494

5Applicationofnanofibersinagriculture504

6Conclusions514 References515

29.SynthesisofdifferentTiO2 nanostructuresusingcentral compositedesignoptimizationmethod andapplicationofTiO2-nanobelt forwatermicroorganism’spurification

NahidSarlak,ZeynabDerikvand,andVahidbabieZareei

1Introduction527

2Experimentalsetup529

3Resultanddiscussion531

4Conclusions535 References535

Index537

Contributors

MohammadRezaAbdi DepartmentofChemistry,FacultyofSciences,LorestanUniversity, Khorramabad,Iran

FaezehossadatAbtahi DepartmentofMedicinalPlants,FacultyofAgricultureandNatural Resources,ArakUniversity,Arak,Iran

SajadAliyar DepartmentofSoilScience, FacultyofAgriculture,UniversityofTabriz, Tabriz,Iran

MehrdadAlizadeh DepartmentofPlantPathology,CollegeofAgriculture,TarbiatModares University,Tehran,Iran

J.D.Alwin DepartmentofBiotechnology,Sri ShakthiInstituteofEngineeringandTechnology,Coimbatore,TamilNadu,India

GabrielaAmodeo InstituteofBiodivesity,ExperimentalandAppliedBiology(IBBEA),UniversityofBuenosAires,NationalScientificand TechnicalResearchCouncil;Departmentof BiodivesityandExperimentalBiology(DBBE), UniversityofBuenosAires,BuenosAires, Argentina

AdityaBanerjee DepartmentofBiotechnology, St.Xavier’sCollege(Autonomous),Kolkata, WestBengal,India

SabyasachiBanerjee DepartmentofPharmacognosyandPhytochemistry,GuptaCollegeof TechnologicalSciences,Asansol,WestBengal, India

ShikhaBansal CentreforNanoscienceand Nanotechnology,JamiaMilliaIslamia,New Delhi,India

V.Baskar DepartmentofBiotechnology,Sri ShakthiInstituteofEngineeringandTechnology,Coimbatore,TamilNadu,India

SankhadipBose DepartmentofPharmacognosy,BengalSchoolofTechnology,Hooghly, WestBengal,India

NavakanthVijayChallagulla AmityInstitute ofNanotechnology,AmityUniversityUttar Pradesh,Noida,UP,India

NaoremBidyaleimaChanu Departmentof VegetableScience,CollegeofHorticulture andForestry,CentralAgriculturalUniversity, Pasighat,ArunachalPradesh,India

DebasmitaChatterjee DepartmentofPharmaceutics,JISUniversity,Kolkata,WestBengal, India

R.N.Chithraanjane DepartmentofBiotechnology,SriShakthiInstituteofEngineeringand Technology,Coimbatore,TamilNadu,India

I.M.Chung DepartmentofAppliedBioscience,KonkukUniversity,Seoul,Republic ofKorea

KhushbooDasauni DepartmentofBiotechnology,KumaunUniversityNainital,SirJ.C.Bose Campus,Nainital,Uttarakhand,India

SusanaMerazDa ´ vila GraduateandResearch Division,EngineeringFaculty,Universidad Auto ´ nomadeQueretaro,CerrodelasCampanas,SantiagodeQueretaro,Qro,Mexico

ZeynabDerikvand DepartmentofChemistry, FacultyofSciences,LorestanUniversity, Khorramabad,Iran

S.Deva DepartmentofBiotechnology,Sri ShakthiInstituteofEngineeringandTechnology,Coimbatore,TamilNadu,India

Divya DepartmentofBiotechnology,Kumaun UniversityNainital,SirJ.C.BoseCampus, Nainital,Uttarakhand,India

KarenEsquivelEscalante GraduateandResearchDivision,EngineeringFaculty, UniversidadAuto ´ nomadeQueretaro,Cerro delasCampanas,SantiagodeQueretaro,Qro, Mexico

FaribaFahmidehMahdizadeh Departmentof Biotechnology,ChemistryandPharmaceutical Science,SienaUniversity,Siena,Italy

MuhammadQudratUllahFarooqi Schoolof AgricultureandEnvironment,TheUniversity ofWesternAustralia,Perth,WA,Australia

NasrinFazelian DepartmentofPlantBiology, FacultyofNaturalSciences,Universityof Tabriz,Tabriz;DepartmentofMarineBiology, FacultyofMarineScienceandTechnology, UniversityofHormozgan,BandarAbbas,Iran

JianguoFeng SchoolofHorticultureandPlant Protection,YangzhouUniversity,Yangzhou, China

B.H.Gangadhar DepartmentofBiotechnology andCropImprovement,UniversityofHorticulturalSciences,Bagalkot,Karnataka,India

ZahraGerami DepartmentofSoilScience,FacultyofAgriculture,FerdowsiUniversityof Mashhad,Mashhad,Iran

MansourGhorbanpour DepartmentofMedicinalPlants,FacultyofAgricultureandNatural Resources,ArakUniversity,Arak,Iran

RominaGiacometti InstituteofAgricultural andEnvironmentalBiosciencesResearch (INBA),SchoolofAgriculture,Universityof BuenosAiresandNationalScientificandTechnicalResearchCouncil,BuenosAires, Argentina

YolandaGonza ´ lez-Garcı ´ a DepartmentofBotany,AutonomousAgrarianUniversityAntonio Narro,Saltillo,Mexico

ZunairaHabib InstituteofEnvironmental SciencesandEngineering,SchoolofCiviland EnvironmentalEngineering,NationalUniversityofSciencesandTechnology,Islamabad, Pakistan

HakimehHajilou DepartmentofSoilScience, FacultyofAgriculture,UniversityofTabriz, Tabriz,Iran

B.S.Harish DepartmentofBiotechnology,KITKalaignarKarunanidhiInstituteofTechnology, Coimbatore,TamilNadu,India

MehrnazHatami DepartmentofMedicinal Plants,FacultyofAgricultureandNaturalResources,ArakUniversity,Arak,Iran

SeidMahdiJafari DepartmentofFoodMaterialsandProcessDesignEngineering,Gorgan UniversityofAgriculturalScienceandNatural Resources,Gorgan,Iran

MAJimoh PlantBiologyUnit,Departmentof BiologicalSciences,OsunStateUniversity, Osogbo,Nigeria

AntonioJua ´ rez-Maldonado DepartmentofBotany,AutonomousAgrarianUniversityAntonio Narro,Saltillo,Mexico

ShabnamKatoch DivisionofPlantPathology, ICAR-IndianAgriculturalResearchInstitute, NewDelhi,India

SolmazKazemalilou DepartmentofSoil Science,FacultyofAgriculture,Universityof Tabriz,Tabriz,Iran

R.Keerdhana DepartmentofBiotechnology,Sri ShakthiInstituteofEngineeringandTechnology,Coimbatore,TamilNadu,India

ManikaKhanuja CentreforNanoscienceand Nanotechnology,JamiaMilliaIslamia,New Delhi,India

MaryamKokabi DepartmentofMarineBiology,FacultyofMarineScienceandTechnology, UniversityofHormozgan,BandarAbbas,Iran

BehnamAsgariLajayer HealthandEnvironmentResearchCenter,TabrizUniversityof MedicalSciences;DepartmentofSoilScience, FacultyofAgriculture,UniversityofTabriz, Tabriz,Iran

UshaLakra DepartmentofBioengineeringand Biotechnology,BirlaInstituteofTechnology, Mesra,Ranchi,India

SutapaBiswasMajee Departmentof Pharmaceutics,NSHMCollegeofPharmaceuticalTechnology,NSHMKnowledgeCampus, Kolkata – GroupofInstitutions,Kolkata,West Bengal,India

G.AliMansoori DepartmentsofChemical andBio-Engineering&Physics,Universityof IllinoisatChicago,Chicago,IL,UnitedStates

MuhammadFaisalManzoor SchoolofFood andBiologicalEngineering,JiangsuUniversity, Zhenjiang,China

NarimanMaroofpour DepartmentofPlant Protection,FacultyofAgriculture,University ofTabriz,Tabriz,Iran

PriyankaMathpal DepartmentofMolecular BiologyandGeneticEngineering,Collegeof BasicSciencesandHumanities,GovindBallabh PantUniversityofAgricultureandTechnology, Pantnagar,Uttarakhand,India

SujayitaMazumder DepartmentofPharmaceutics,NSHMCollegeofPharmaceutical Technology,NSHMKnowledgeCampus, Kolkata – GroupofInstitutions,Kolkata,West Bengal,India

AlonsoMendez-Lo ´ pez DepartmentofBotany, AutonomousAgrarianUniversityAntonio Narro,Saltillo,Mexico

CristianJosueMendozaMeneses Graduate andResearchDivision,EngineeringFaculty, UniversidadAuto ´ nomadeQueretaro,Cerro delasCampanas,SantiagodeQueretaro,Qro, Mexico

EbrahimMoghiseh NuclearAgricultureResearchSchool,NuclearScienceandTechnology ResearchInstitute,Karaj,Iran

TapanK.Nailwal DepartmentofBiotechnology,KumaunUniversityNainital,SirJ.C.Bose Campus,Nainital,Uttarakhand,India

S.H.Nile LaboratoryofMedicinalPlant Biotechnology,CollegeofPharmacy,Zhejiang ChineseMedicalUniversity,Hangzhou, Zhejiang,People’sRepublicofChina

SeyedehLavinNourani PlantPathology Department,FacultyofAgriculture,Tarbiat ModaresUniversity,Tehran,Iran

COOgunkunle EnvironmentalBiologyUnit, DepartmentofPlantBiology,Universityof Ilorin,Ilorin;PlantBiologyUnit,Department ofBiologicalSciences,OsunStateUniversity, Osogbo,Nigeria

GOOkunlola PlantBiologyUnit,Department ofBiologicalSciences,OsunStateUniversity, Osogbo,Nigeria

SOyedeji EnvironmentalBiologyUnit,DepartmentofPlantBiology,UniversityofIlorin, Ilorin,Nigeria

AnaAngelicaFeregrinoPerez Graduateand ResearchDivision,EngineeringFaculty, UniversidadAuto ´ nomadeQueretaro,Cerro delasCampanas,SantiagodeQueretaro,Qro, Mexico

MercedesPerullini DepartmentofInorganic, AnalyticalandPhysicalChemistry,FacultyofExactandNaturalSciences,UniversityofBuenos Aires;InstituteofPhysicalChemistryofMaterials,EnvironmentandEnergy(INQUIMAE), NationalScientificandTechnicalResearch CouncilofArgentina(CONICET),Buenos Aires,Argentina

T.Pooja DepartmentofBiotechnology,Sri ShakthiInstituteofEngineeringandTechnology,Coimbatore,TamilNadu,India

MortezaPoorhadi DepartmentofChemistry, FacultyofSciences,LorestanUniversity, Khorramabad,Iran

RameshNamdeoPudake AmityInstituteof Nanotechnology,AmityUniversityUttar Pradesh,Noida,UP,India

TongQunyi StateKeyLaboratoryofFood ScienceandTechnology,JiangnanUniversity, Wuxi,Jiangsu,China

S.Ramkumar DepartmentofBiotechnology,Sri ShakthiInstituteofEngineeringandTechnology,Coimbatore,TamilNadu,India

AbdurRehman StateKeyLaboratoryofFood ScienceandTechnology,JiangnanUniversity, Wuxi,Jiangsu,China

JoseRosendoHerna ´ ndezResendiz Graduate andResearchDivision,EngineeringFaculty,

UniversidadAuto ´ nomadeQueretaro,Cerrode lasCampanas,SantiagodeQueretaro,Qro, Mexico

VartikaRohatgi AmityInstituteofNanotechnology,AmityUniversityUttarPradesh, Noida,UP,India

AryadeepRoychoudhury DepartmentofBiotechnology,St.Xavier’sCollege(Autonomous), Kolkata,WestBengal,India

ShreyaSaha CentreforNanoscienceandNanotechnology,JamiaMilliaIslamia,NewDelhi, India

RichaSalwan CollegeofHorticultureandForestry,Dr.YSParmarUniversityofHorticulture &ForestryNeri,Hamirpur,India

PatricioRoma ´ nSantagapita Departmentof OrganicChemistry,FacultyofExactandNatural Sciences,UniversityofBuenosAires;Research CenterinCarbohydrateChemistry(CIHIDECAR), NationalScientificandTechnicalResearch CouncilofArgentina(CONICET),BuenosAires, Argentina

K.SaravanaMurali ViralResearchandDiagnosticLaboratory,CoimbatoreMedicalCollege,Coimbatore,TamilNadu,India

NahidSarlak DepartmentofChemistry,FacultyofSciences,LorestanUniversity,Khorramabad,Iran

MartaSendra CSIC,SpanishNationalReferenceLaboratoryforMolluscDiseases,Institute ofMarineResearch(IIM),NationalResearch Council(CSIC),Vigo,Spain

LuisAlfonsoPa ´ ramoSerrano Graduateand ResearchDivision,EngineeringFaculty, UniversidadAuto ´ nomadeQueretaro,Cerro delasCampanas,SantiagodeQueretaro,Qro, Mexico

BhavnaSharma DepartmentofBioengineering andBiotechnology,BirlaInstituteofTechnology,Mesra,Ranchi,India

RajaniSharma DepartmentofBiotechnology, AmityUniversity,Ranchi,India

ShubhaRaniSharma DepartmentofBioengineeringandBiotechnology,BirlaInstituteof Technology,Mesra,Ranchi,India

VivekSharma UniversityCentreforResearch andDevelopment,ChandigarhUniversity, Ajitgarh,Punjab,India

MayanglambamChandraKumarSingh DepartmentofBasicSciencesandHumanities, CollegeofHorticultureandForestry,Central AgriculturalUniversity,Pasighat,Arunachal Pradesh,India

R.Skymoon DepartmentofBiotechnology,Sri ShakthiInstituteofEngineeringandTechnology,Coimbatore,TamilNadu,India

FedericoSpagnoletti InstituteofAgricultural andEnvironmentalBiosciencesResearch (INBA),SchoolofAgriculture,Universityof BuenosAiresandNationalScientificandTechnicalResearchCouncil,BuenosAires, Argentina

G.SriThatchayani DepartmentofBiotechnology,SriShakthiInstituteofEngineeringand Technology,Coimbatore,TamilNadu,India

M.Thiruvengadam DepartmentofApplied Bioscience,KonkukUniversity,Seoul,Republic ofKorea

MiguelTinoco SpanishNationalCentrefor ElectronMicroscopy(CNME),Facultyof ChemicalSciences,ComplutenseUniversity ofMadrid,Madrid,Spain

S.Umadevi TranslationalResearchPlatformfor VeterinaryBiologicals,TamilNaduVeterinary andAnimalSciencesUniversity,Chennai, TamilNadu,India

MuhammadUsman BeijingAdvanceInnovationcenterforFoodNutritionandHuman Health,SchoolofFoodandChemicalTechnology,BeijingTechnologyandBusinessUniversity,Beijing,China

MayankVarun DepartmentofBotany,HISLOP College,Nagpur,Maharashtra,India

Marı´aPilarYeste DepartmentofMaterialsScience,MetallurgicalEngineering&Inorganic Chemistry,FacultyofSciences,Universityof Cadiz,CampusRı´oSanPedro,Ca ´ diz,Spain

MortezaYousefzadi DepartmentofBiology, FacultyofScience,UniversityofQom,Qom, Iran

ZahraZahra DepartmentofCivil&EnvironmentalEngineering,UniversityofCaliforniaIrvine,Irvine,CA,UnitedStates

VahidbabieZareei DepartmentofChemistry, FacultyofSciences,LorestanUniversity,Khorramabad,Iran

LiZhao StateKeyLaboratoryofFoodScience andTechnology,JiangnanUniversity,Wuxi, Jiangsu,China

Theroleofnanotechnologytocombat majorrecentworldwidechallenges

DepartmentsofChemicalandBio-Engineering&Physics,UniversityofIllinoisatChicago, Chicago,IL,UnitedStates

1Recentproblemsandeffortstowardstheirsolution

1.1Coronavirusdisease(COVID-19)pandemic

Sincelate2019oneobviousmajorconcernallaroundtheworldhasbeentheproblems associatedwiththeCoronavirusdisease(COVID-19)pandemic.Thisdiseaseiscertainly oneofthebiggestchallengesofthe21stcenturyforthewholeworld.Allviruses,including Coronavirus,arenanoscaleentities.Coronavirushasasphericalorellipticshape(Fig.1),and itissaidtoalsoassumeapleomorphic(irregularandvariant)formatvariousconditions.It hasadiameterofabout60–140nm[www.ncbi.nlm.nih.gov ›books›NBK55477]whichiscloseto therangeofnanoscale(1–100nm)sizes(Mansoori,2005).

Itisnotsurprisingthattherehasbeenagreatdealofinterestinfindingapplicationsofthe principlesofnanotechnologycombinedwithbiologytocombattheviruswhichcausesthis disease.IntheliteraturerelatedtodevelopingmRNACOVID-19vaccines,itisstatedthat lipidnanoparticles,whichhadbeenintheworksfordecades,areusedasdeliveryvehicles, acceleratingthedevelopmentofthesevaccinestosavehumans’lives(Cross,2021).Itis knownthatthesemedicalinterventionsusenanotechnologytomimicnature’sownmethod ofslippingpasttheimmunesystemtodelivertreatmenttotargetcells(Kulkarnietal.,2020; Shinetal.,2020).Itisrecommendedthatthistechnologyfordeliveringvaccinesintothehumanbodyshouldbeconsideredbyresearchers,ifthegene-editingsystemforgeneticdisease treatmentusingCRISPR(ClusteredRegularlyInterspacedShortPalindromicRepeats)tool (Kato-Inuietal.,2018)istohaveanysuccessinthefuture.Whilesuchscientificeffortsseem quiteusefulinthedesignofvaccines,thereisalsoaneedforreliabilitystudiesofthevaccine effectiveness,similartowhathasbeendonefornano-drugdelivery(EbrahimiandMansoori,

2014; Ebrahimietal.,2016),inregardtoitsdurationofproducedimmunityandthepossible requirementforitsrepetitionorboostershots.

Inadditiontoeffortstodevelopvaccinesbasedonnanotechnology,therehavebeenother recentnanotechnology-basedeffortstomakepeoplemoreimmunefromCOVID-19,the currentmostimportantpublichealthproblem.Inadditiontorecommendationsforsocial distancing,weareencouragedtowearfacialandpossiblyhandsprotection(Fig.2).

SuchrequirementagainstCOVID-19andothersurfacesandairbornepathogensbrought aboutthedesignandproductionofnanotechnology-basedfacialandhandsprotection. Nanofibersandnanoparticleshavebeenconsideredforthedesignofsomefacemaskstoimprovetheirantiviralperformance.Withthediscoveryofavarietyofnanoparticles(carbon nanotubes,diamondoids,fullerenes,graphene,goldnanoparticles,quantumdots,silver nanoparticles,titaniumdioxidenanostructures,etc.),thereliesavastfieldofunsolvedmedicaldiagnosestobereassessed.Beforetheapplicationofnanoparticlesinthedesignofface masksandotherprotectivedevices,inadditiontotheirroleinkillingthebacteriaandviruses, itisimportanttoknowwhathappenstoaparticleonceitisfreeinthebody(Hartungand Mansoori,2013).

Consideringthepopularityofgraphene,anovelnanomaterial,whichhasfoundinteresting applicationsespeciallyintheopto-electronicsarea(Kovalevetal.,2021; Liuetal.,2021),some groupshavealsoconsideredgrapheneasanovelnanomaterialthatpossessesantiviraland antibacterialproperties.Then,therewerefacemasksdesigned,manufactured,andsold containinggraphenewithprotectionagainstCOVID-19claimsandusedbyadultsandchildrenincertainschoolsanddaycares.However,on April2,2021,HealthCanada,thedepartmentoftheGovernmentofCanadaresponsiblefornationalhealthpolicy,issuedanadvisory mentioning“Facemasksthatcontaingraphenemayposehealthrisks”.Buton July13,2021, issuedanotheradvisoryupdatementioning“GraphenefacemasksbyShandongShengquan NewMaterialsCo.Ltd.canresumesaleinCanada;HealthCanadafoundnohealthrisksof

FIG.2 Facialandhandsprotectioncover. ©GAM
FIG.1 Coronavirusisananoscaleentity.

concernwiththeseproducts”[Facemasksthatcontaingraphenemayposehealthrisks-Recallsand safetyalerts(healthycanadians.gc.ca)].Thereisstillthisquestion“whethergraphene-coated facemasksa COVID-19 miracle—oranotherhealthrisk?”byhealthprofessionals [theconversation.com/are-graphene-coated-face-masks-a-covid-19-miracle-or-another-health-risk159422].

Thatisbecausethereisapotentialtoinhalegrapheneparticlespresentinthemask,which mayposehealthrisks.Carbonatomsattheedgesofagraphenesheet(Fig.3)havespecial chemicalreactivityiftheyarenotproperlyreacted.Graphenehasthehighestratioofedge atomsofanyallotrope,includingitsownallotropeswhichincludecarbonnanotube,nanodiamonds,andFullerene.

Previousstudieshaveshownpristineorunmodifiedcarbonnanotubescancausepulmonaryfibrosis/lungscarringandlunginflammationinanimalsandcellularmodelsafterinhalationexposureinasimilarwayasasbestos(Gracianetal.,2009).However,studies indicategraphenecould1daybeusedasanelectronicbiosensortomakequick,reliabletests forviruseslikeSARS-CoV-2.Inarecentreview(Prattisetal.,2021)investigatorslookedinto thelatestresearchtofindthemostexcitingpotentialapplicationsofgrapheneinpoint-of-care tests.ThisincludesdiagnostictestsforthevirusresponsibleforCOVID-19butalsodetecting otherviruses,bacteria,andevencanceroustumors.

ItshouldbementionedthatvariousinvestigationshaveindicatedthatTiO2 nanostructures (KhataeeandMansoori,2011)andsilvernanoparticles(Vahabietal.,2011; Mohammadinejad etal.,2013),amongothernano-systems,arealsoeffectivetocombatthebacteriaandviruses. Considerationoftheseandothernanostructuresinthedesignofprotectivehumanshields requirecarefulanalysisintermsofefficacyandpossiblelong-termeffectsonthewearers’skin andlungsaswellasontheenvironment(Palmierietal.,2021).

1.2Environmentalcrisisduetofossilfuelscombustion

WhileallthecountriesaroundtheworldaretryingtocombattheCOVID-19pandemic,the earth’senvironmentisbeingdamagedduetotheexcessiveamountoffossilfuelscombustion andoversupplyofgreenhousegasesintheatmosphere(MohammedandMansoori,2017).

FIG.3 Graphenehasthehighestratio ofedgeatomsofanyallotrope.

Thishasmademanyindustriallyadvancedsocietiesconsiderabandoningfossilfuelsfor combustionandutilizerenewableenergies.The2015UnitedNationsClimateChangeConference(COP21ParisAgreement)(Fig.4)providedfundamentalguidelinestoachieveenergy sufficiency,cleanenvironment,andsustainablesourcesforcountries,states,orcommunities.

Wepublishedacomprehensivebookcoveringthesubjectofenergysources,utilization, legislation,andsustainabilityayearaftertheCOP21ParisAgreement,whichrepresentsa roadmaptofollowitsrequirements(Mansoorietal.,2016).Inthebook,therearediscussions ontheroleofnanotechnologyandnanoparticlesinimprovingthesustainabilityoftheenergy industry.Severalindustriallyadvancedcountrieshaveplanstoabandontheuseoffossilfuels combustionandutilizerenewableenergies.Whilethetechnologyforsmall-scalerenewable energiesutilizationisalreadyavailable,foritslarge-scaleutilization,storageandtransportof appropriatefuelsarerequired.

Inarecentpublication(Mansoorietal.,2021 )wehavestudiedthepotentialofvarious nonfossil/alternativefuelsforlarge-scalerenewableenergysourcesutilization.Ourstudies indicatethattheproductionofbiofuelsusing renewableenergieswillallowbiofuelsdirect useintheexistinginternalcombustionengines.Then,theremaybenoneedformajorelectrificationofthetransportationindustrywhichwillrequirehugeamountsofexpensiveand rarematerials,suchaslithium,andsilvertohavehigh-capacitybatteries( Mansoorietal., 2021 ).However,fortheagriculturalactivitiesbasedonwhichbiofuelsareproduced,there isaneedforammonia,animportantagrochemic alsinceitisthemajorfeedforagricultural fertilizers.Itisinterestingtonotethatammoniacanbealsoproducedusingrenewableenergiesasisdemonstratedin Fig.5 .However,therearenanotec hnologyapproachesbeing studiedforimprovementinitsproductionconditionsfromrenewableenergies(Lietal., 2019 ; Sunetal.,2020 ).Intheproductionofammonia,animportantagrochemical,from renewablesourcesofenergy,hydrogenisneed edtobeproducedusingrenewableenergies ( Fig.5 ).

Thereareseveraleffortsunderwaytoapplycertainnanomaterialsfortheimprovementof hydrogenproductionfromrenewableenergies,aswellasitsstorageandtransportincaseof usingitasafuelinthefuture(Li,2013; Chenetal.,2021; Senetal.,2021).Thetechnologyfor thestorageandtransportofammoniaisalreadyavailableworldwide.

FIG.4 The11thSessionoftheConferenceofthe PartiesservingasthemeetingofthePartiestotheKyoto Protocol(CMP11)tookplacefromMonday,30Nov.to Friday,11Dec.2015inParisleBourget,France.

CdS, SiC or TiO2 Nanocatalyst

NanoCatalyst

FIG.5 Hydrogenproductionthroughdissociationofwater,nitrogenpurificationthroughthecryogenicdistillationofairandammonia(animportantagrochemical)production,storage,andtransport,allthroughtheuseofrenewableenergies.

Thebookon“Nano-enabledAgrochemicalsinAgriculture”(GhorbanpourandShahid, 2021),towhichthisessayistheintroductorychapter,contains29paperscoveringvarious aspectsofapplicationsofnanotechnologytowardstheimprovementofagriculturalactivity, includingbiofuelsproduction.

References

Chen,Z.,Ma,Z.,Zheng,J.,2021.Perspectivesandchallengesofhydrogenstorageinsolid-statehydrides.Chin.J. Chem.Eng.29,1–12.

Cross,R.,2021.Withouttheselipidshells,therewouldbenomRNAvaccinesforCOVID-19.Chem.Eng.News99(8) (cen.acs.org/pharmaceuticals/drug-delivery/Without-lipid-shells-mRNA-vaccines/99/i8).

Ebrahimi,N.,Mansoori,G.A.,2014.Reliabilityfordrugtargetingincancertreatmentthroughnanotechnology (apsychometricapproach).Int.J.Med.NanoRes.1,1. https://doi.org/10.23937/2378-3664/1410004.

Ebrahimi,N.,Mansoori,G.A.,Skradski,N.,2016.Reliabilityfordrugtargetingincancertreatmentthroughnanotechnology(astochasticdifferentialequation-basedflexiblemodel).FrontNanosc.Nanotechnol.2(4),144–148. https://doi.org/10.15761/FNN.1000125.

Ghorbanpour,M.,Shahid,M.A.(Eds.),2021.Nano-EnabledAgrochemicalsinAgriculture.Elsevier. Gracian,T.,Panyala,N.R.,Havel,J.,2009.Carbonnanotubes:toxicologicalimpactonhumanhealthandenvironment. J.Appl.Biomed.7(1). https://doi.org/10.32725/jab.2009.001.

Hartung,G.,Mansoori,G.A.,2013.Invivogeneraltrends,filtrationandtoxicityofnanoparticles.J.Nanomater.Mol. Nanotechnol.2(3),21. https://doi.org/10.4172/2324-8777.1000113

Kato-Inui,T.,Takahashi,G.,Hsu,S.,Miyaoka,Y.,2018.Clusteredregularlyinterspacedshortpalindromicrepeats (CRISPR)/CRISPR-associatedprotein9withimprovedproof-readingenhanceshomology-directedrepair. NucleicAcidsRes.46(9),4677–4688. https://doi.org/10.1093/nar/gky264

Khataee,A.R.,Mansoori,G.A.,2011.NanostructuredTitaniumDioxideMaterials(Properties,PreparationandApplications).WorldScientificPublishingCo.

Kovalev,S.,Hafez,H.A.,Tielrooij,K.-J.,etal.,2021.Electricaltunabilityofterahertznonlinearityingraphene.Sci. Adv.07(15),eabf9809. https://doi.org/10.1126/sciadv.abf9809

Kulkarni,J.A.,Witzigmann,D.,Leung,J.,etal.,2020.Ontheroleofhelperlipidsinlipidnanoparticleformulationsof siRNA.Nanoscale11,21733–21739.

Li,S.S.,2013.Developmentstatusofhydrogenenergyandapplicationprospects.Appl.Mech.Mater.273,70–74.

1.Theroleofnanotechnologytocombatmajorrecentworldwidechallenges

Li,X.,Zhang,X.,Everitt,H.O.,etal.,2019.Light-inducedthermalgradientsinrutheniumcatalystssignificantlyenhanceammoniaproduction.NanoLett.19(3),1706–1711.

Liu,X.,Wang,Z.,Watanabe,K.,etal.,2021.Tuningelectroncorrelationinmagic-angletwistedbilayergraphene usingcoulombscreening.Science371(6535),1261–1265. https://doi.org/10.1126/science.abb8754

Mansoori,G.A.,2005.PrinciplesofNanotechnology:Molecular-BasedStudyofCondensedMatterinSmallSystems. WorldScientificPublishingCo.

Mansoori,G.A.,Enayati,N.,Agyarko,L.B.,2016.EnergySources,Utilization,Legislation,Sustainability,Illinoisas ModelState.WorldScientificPublishingCo.

Mansoori,G.A.,Agyarko,L.B.,Estevez,A.,etal.,2021.FuelsoftheFutureforRenewableEnergySources(Ammonia, Biofuels,Hydrogen).42pp.(https://uic.academia.edu/GAliMansoori) https://www.academia.edu/s/ 53dc122852?source¼news.

Mohammed,Mansoori,G.A.,2017.Auniqueviewoncarbondioxideemissionsaroundtheworld.Glob.J.EarthSci. Eng.4(1),8–17. https://doi.org/10.15377/2409-5710.2017.04.01.2.

Mohammadinejad,R.,Pourseyedi,S.,Baghizadeh,A.,Ranjbar,S.,Mansoori,G.A.,2013.Synthesisofsilver nanoparticlesusing Silybummarianum seedextract.Int.J.Nanosci.Nanotechnol.9(4),221–226. Palmieri,V.,DeMaio,F.,DeSpirito,M.,Papi,M.,2021.Facemasksandnanotechnology:keepthebluesideup.Nano Today37,101077. https://doi.org/10.1016/j.nantod.2021.101077

Prattis,I.,Hui,E.,Gubeljak,P.,etal.,2021.Grapheneforbiosensingapplicationsinpoint-of-caretesting.Trends Biotechnol. https://doi.org/10.1016/j.tibtech.2021.01.005

Sen,F.,Khan,A.,Asiri,A.M.(Eds.),2021.NanomaterialsforHydrogenStorageApplications.Elsevier. Shin,M.D.,Shukla,S.,Chung,Y.H.,etal.,2020.COVID-19vaccinedevelopmentandapotentialnanomaterialpath forward.Nat.Nanotechnol. https://doi.org/10.1038/s41565-020-0737-y Sun,Y.,Deng,Z.,Song,X.-M.,etal.,2020.Bismuth-basedfree-standingelectrodesforambient-conditionAmmonia productioninneutralmedia.Nano-MicroLett.12,133.

Vahabi,K.,Mansoori,G.A.,Karimi,S.,2011.Biosynthesisofsilvernanoparticlesbyfungus Trichodermareesei (aroute forlarge-scaleproductionofAgNPs).Insci.J.1(1),65–79.

2

Classificationofnanomaterialsand theirphysicalandchemicalnature

CentreforNanoscienceandNanotechnology,JamiaMilliaIslamia,NewDelhi,India

1Introduction

Nanotechnologyreferstonovelscienceandtechnologywhichestablishescontroloverfabricationandengineeringofmatteratascalethatrangesbetween1and100nm,resultingin revolutionarypropertiesforaplethoraofapplicationssuchaselectronics,medicalscience, defense,aviation,sports,etc.Interestingly,internetsearchportraysevidencewhichadvocate thatRomancraftsmenwerethefirsttoexploremarvelnanoscienceduringthecreationof LycrugusCup:aglassdrinkinggobletthatshowedcolorchangeonexposuretolightphotons. Thecreationofthegobletcanbedatedbackto1600yearsoldtraditionwhereRomansutilized silverandgoldparticlesembeddedintheglassymatrix.Accordingtothespeculations,the processinvolvedgroundingofmetalparticlesuntiltheyresembledthecomparativesizeof sandgrains,followedbymixingtheparticleinhotliquidglass.StoriesalsosuggestthatRomansweresmarttodifferentiatethecoloreffectanditsrelationshipwiththethicknessof glass(Freestoneetal.,2007).Modern-daynanotechnologydrawsinspirationfromRichard Feynman,the1965NobelPrizewinner,inphysics.Oneofhismostpopularlectures, “ThereisPlentyofRoomattheBottom”explainsthenuancesofmanipulationsofmatter attheatomicscalelevel.Duetohisnovelideas,heisconsideredasthefatherof nanotechnology.

Classificationofnanomaterials:NanostructureswerefirstclassifiedbyH.Gleiterin1995 (Gleiter,2000)onthebasisofcrystallinityandcompositionwherethebuildingblockswere grainboundariesandcrystallites.Thisclassification,however,failedtoincorporate0Dand 1Dstructuressuchasfullerenesandnanotubes.ThiswasfurtherdescribedbyV.Skorokhod in2000(Skorokhodetal.,2001).

2Origin

Basedonorigin,nanomaterialscouldbenaturaloranthropogenic.Thetypeofformation, i.e.,intentionalornotdefineswhetheranthropogenicnanomaterialsareincidentalor engineerednanomaterials.Nanomaterialsthatarefoundinnatureinclude,forexample, eruptingvolcanoes,breakingseawaves,forestfires,sandstorms,andsoils(Kumar,2009). Livingorganismsmayalsobeconsideredasnaturalsourcesofnanomaterialssuchas biogenicmagnetitewhichisaferromagneticcrystallinestructureassociatedwithmagnetoreceptioninsomeanimals.Anotherexampleisaproteinwhichisresponsibleforironstorage, calledferritinandcalciumhydroxyapatite,ananocrystallineconstituentofbones(Hochell etal.,2012).Unintentionalby-productsresultingfromhumanactivitymayalsocontain nanomaterials.Examplesincludeinternalcombustionengines,powerplants,incinerators, jetengines,metalfumes,heatedsurfaces,andelectricmotors(Oberdorsteretal.,2005). Manufacturednanomaterialswithtailorabledimension,shape,andcomposition,arebased onchemicalconstituentsandareproducedforspecificapplications.

3Classificationofnanostructures

3.1Accordingtodimensions

Whencategorizedaccordingtodimension,nanomaterialscouldbe:

3.1.1Zerodimensional(0D)

Nanomaterialswhichhavealldimensionsinthenanoscaleareclassifiedaszero-dimensional. Mostcommon0Dnanomaterialsarenanoparticles.Theyoffermoreactiveedgesitesperunit massduetohighersurfacetovolumeratio.Theirimprovedpropertiessuchashighquantum efficiencyandchemiluminescenceareattributedtotheirquantumconfinementeffects (PirzadaandAltintas,2019a).

• Carbonbased0Dnanostructures

Zerodimensionalstructuresbasedoncarbonhavebeenstudiedextensivelyfortheir excellentelectricalandopticalproperties,lowproductioncost,lowtoxicity,andtheirability toundergofunctionalization.Thesepropertiescatertomanyapplicationssuchas bioimaging,sensing,drugdeliveryandelectrochemicaldevices(Zhouetal.,2019).The followingsectionenumeratesthemostwidelystudiedcarbon-based0Dnanostructures.

• Graphenequantumdots

Theemergenceofgraphenequantumdotsinthescientificworld,canbedatedbacktothe nineteenthcenturywiththeadventof“Graphon”orgraphiteoxidewhichwassynthesized byBrodiein1859(Brodie,1859).TheideaofgraphenewasintroducedbyWallacein1947 (Wallace,1947)andtheterm“graphene”wasgivenbyMourasin1987,torepresentsingle layersofgraphite(Mourasetal.,1987).WorkoncarbonquantumdotsbyXuetal.in2004 (Xuetal.,2004)inspiredthesynthesisofGQDin2008,byPonomarenkoandGeim (Ponomarenketal.,2008).GQDsarecomposedofusuallyoneortwolayersofgraphene,

notexceeding2nminthicknessandtransversedimensionslessthan10nm(Chungetal., 2019).AmongthemanyexceptionalpropertiesofGQDs,photoluminescencehasbeen exploitedforapplicationsinbioimagingandbiosensing.TheabilitytotailorthePLemission andexcitationwavelengthsofGQDsthroughcontrolofsize,changeofsurfacepropertiesor byaddingimpuritiessuchasnitrogenorboroninthecarbonlattice,makethemsuitablecandidatesforthesynthesisofopticalbiosensors(Chungetal.,2019).Incorporationofdopantsto modifythepropertiesofGQDswasfirstinvestigatedbyZhaoandgroupin2012byusing nitrogenasdopant(Zhaoetal.,2012).

InadditiontoPL,biocompatibilityraisedbythepresenceofoxygen-richfunctional groupsontheedgeofGQDs,grantingexcellentaqueoussolubility,hasbeenshownto bebeneficialforbiologicalapplications(Sunetal.,2013).Theremarkablepropertiesof GQDssuchaslowtoxicity,goodsolubility,surfacegrating,biocompatibilityhaveextendedtheirapplicabilityinsolarcells(Tangetal.,2017),photodetectors(Tetsuka etal.,2016),fluorescentagents(Mehrzad-Samarinetal.,2017),light-emittingdiodes (Songetal.,2014),batteries(Parketal.,2016),sensors(Raeyanietal.,2018),drugcarriers (Dingetal.,2017),etc.(Fig.1).

• Carbonquantumdots

Carbonquantumdotsorsometimescalledcarbondots(CD)werefirstobtainedasaproductofimpurecarbonsootduringthearcdischargesynthesisofcarbonnanotubes,in2004by Xuetal.(Xuetal.,2004)andwerenamedCDsbySunetal.in2006,anamegiventofluorescentcarbonnanomaterials(Sunetal.,2006).Thesecarbon-basednanomaterialsaresmaller FIG.1

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