Meet the Scientists

Troy A. Alexander, Ph.D.

Troy A. Alexander, Ph.D. is a research chemist at the U. S. Army Research Laboratory (ARL) in Adelphi, MD. He joined ARL in 2000, after receiving a doctorate in chemistry from Marquette University. Alexander recently developed a novel Surface-Enhanced Raman Spectroscopy (SERS) based methodology for rapid and accurate discrimination of intact Bacillus endospores and Poxviridae virions. Methods of this type are expected to have a significant impact in realization of field-deployable sensors designed to efficiently detect/identify chemical and biological threat agents in the battle space. Currently, Dr. Alexander is leader of the Radiometric Sensor Development and Applications Team within the Sensors and Electron Devices Directorate (SEDD).

John Mark Carter, Ph.D.

John Mark Carter, Ph.D. is Research Leader of the Food Contaminants Research Unit at the USDA Agricultural Research Service in Albany, CA.


Virginia A. Davis, Ph.D.

Virginia A. Davis, Ph.D. is an assistant professor in the Department of Chemical Engineering at Auburn University in Auburn, AL. Her research focuses on understanding how to process cylindrical nanomaterial building blocks into larger materials. David is especially interested in how the chemistry of the building blocks and processing conditions leading to the final properties of large area coatings and fibers. Her research projects include coupled liquid crystalline assembly and flow alignment of cylindrical nanomaterial dispersions, and carbon nanotube - polymer composites. These research areas require an interdisciplinary approach that draws from the fields of chemistry, physics, rheology, and polymer science.

Claire Hartmann-Thompson, Ph.D.

Claire Hartmann-Thompson, Ph.D. is a senior associate scientist at the Michigan Molecular Institute in Midland, MI. She was born and educated in England. She received her doctorate in physical organic chemistry and high energy nitrated materials from the University of Exeter in 1996. She moved to the Michigan Molecular Institute in 2001 after five years in industrial polymer research and development with Raychem, Ltd and with Dow Corning Corporation in Great Britain. Her current research covers hyperbranched polymers, dendrimers and organosilicon compounds, and the use of these building blocks to create nano-structured materials for sensor, fuel cell and space applications. She has written thirteen papers and six patents in these areas.