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Other nanotechnology projects at Marquette human hair) with zinc oxide molecules

Dr. Chieu Tran, Pfletschinger-Habermann Professor of

that glow when electrified, creating one

Analytical Chemistry, is focused on gaining insight into

of the world’s smallest LED light sources.

complex chemical and biochemical systems and processes,

Tests at Cornell will soon determine

as well as developing green methods to synthesize novel,

whether he also has been able to bridge

high-performance supramolecular composite materials for

the gap with thin layers of graphene, a lattice-like arrangement of carbon atoms generating intense buzz in nanotechnology circles. But his biggest strides may be in design and fabrication itself. Unlike predecessors, Lee’s nanostructures have arms that are suspended, rather than resting on the base layer, or substrate.

use in water purification and chemical and biosensors. Dr. Rajendra Rathore, professor of organic chemistry, researches the design and synthesis of novel electroactive molecular wires and organic materials that hold potential for the construction of modern photovoltaic devices and for applications in the emerging field of nanotechnology, as well as in biomaterial applications.

Interference is avoided. Perhaps most remarkable has been his resourcefulness.

Dr. Fabian Josse, professor of electrical and computer

Whereas pioneering peers created

engineering and director of the Microsensors Research

somewhat similar nanostructures with

Laboratory, studies solid state sensors and microelectro-

an etching process involving $5 million

mechanical systems devices for liquid-phase chemical and

electron-beam lithography equipment,

biochemical sensor applications.

Lee didn’t have that luxury. So he originated an approach involving an

Dr. Jeanne Hossenlopp, professor of chemistry and vice

everyday optical lithography exposer that

provost of research, studies factors that control the structure

was manufactured before he was born

and reactivity of layered metal hydroxides with nanodimen-

and was gathering dust in a New Jersey

sional interlayer galleries, as well as the development and

laboratory before he snatched it up for

characterization of these materials for chemical sensor, fire

$7,000. The high-end electron-beam

retardancy and water quality applications.

equipment is a logical choice for tackling precise work at the nanoscale. His old warhorse, not so much. “It’s like deciding not to drive a car from Milwaukee to Madison but riding a bike instead,” he explains. “But through creativity and design, I’m able to make something like no one else has been able to make it. I’m really proud of that. And the optical lithography equipment

Dr. James Gardinier, associate professor of chemistry, examines ways to manipulate electron or energy flow in supramolecular assemblies with the purpose of designing new molecular wires, fluorescent dyes and/or lightharvesting antennae. Dr. Krassimira Hristova, assistant professor of biological sciences, specializes in molecular and environmental

is actually very common in industry. If

microbiology to develop nanoparticle-based molecular

this proves useful, there will be no big

assays for environmental monitoring and to study

technical breakthrough required to

nanoparticles’ toxicity to bacteria, yeast and plants.

move from the design level to the manufacturing level.”²

Marquette University


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