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Professor, Division of Environmental and Biomolecular Systems, Oregon Health Sciences University (OHSU)
Microtechnology-Based Energy and Chemical Systems, Nanoscale Metrology and Nanoelectronics, Safer Nanomaterials and Nanomanufacturing
Dr. Paul G. Tratnyek is a Professor in the Department of Environmental and Biomolecular Systems at the Oregon Health & Science University, Portland, OR. His research concerns the physico-chemical processes that control the fate and effects of environmental substances, including minerals, metals (for remediation), organics (as contaminants), and nanoparticles (for remediation, as contaminants, and in biomedical applications). His recent work on the structure and reactivity Fe(0)-containing nanoparticles has helped to clarify the potential benefits and drawbacks of using reactive nanoparticles for environmental remediation [see, for example, Tratnyek and Johnson, 1996, NanoToday, 1(2): 44-48]. This work builds on Dr. Tratnyek’s long-standing position as one of the leading researchers on contaminant degradation with zero-valent metals (http://cgr.ebs.ogi.edu/iron).
Other areas of interest include the physico-chemical properties of iron oxide nanoparticles used in biomedical imaging, oxidation-reduction reactions mediated by naturally-occurring nanoparticles (or nano-structured surfaces), the electrochemical response of nanoparticle based sensors, the effect of micro-scale heterogenieties on photocatalyzed environmental processes, and kinetics of contaminant degradation by chemical oxidants (including drinking water disinfection processes).
Dr. Tratnyek received his Ph.D. in Applied Chemistry from the Colorado School of Mines in 1987; served as a National Research Council Postdoctoral Fellow at the U.S. Environmental Protection Agency Laboratory in Athens, GA, during 1988; and as a Research Associate at the Swiss Federal Institute for Water Resources and Water Pollution Control (EAWAG) from 1989 to 1991.