Education

Laboratory for Surface Science and Technology)

Research interests

My current research falls into two general categories:

1) Trace Metal Biogeochemistry: Trace metals play imortant roles in a number of oceanographic processes. I am interested in the factors that contribute to trace metal sources, sinks, and chemical transformations in open ocean regimes.

2) Analytical Method/Sensor Design: To strengthen our understanding of envriornmental processes, it is necessary to have sound analytical methods for measurands of interest. I am interested in applying cutting-edge nanotechnology to environmental sensor research. Our multi-disciplinary research team is currently working on novel techniques for situ measurements in the ocean. The ultimate goal of this work is to develop a suite of reliable chemical sensors that can be depoloyed on autonomous research platforms and make continuous measurements.

Publications

• Roy, E.G., Wells, M.L., King, D.W. 2008. Persistence of Fe(II) in surface waters of the subarctic Pacific. Limnology and Oceanography 53: 89-98.
• Roy, E.G., Jiang, C., Wells, M.L., Tripp, C. Determining subnanomolar iron concentrations in oceanic seawater using a siderophore-modified film analyzed by FTIR. Accepted April 3, 2008 in Analytical Chemistry
• Roy, E.G. and Wells, M.L. Regulation of Fe(II) oxidation rates by organic complexing ligands in the eastern subarctic Pacific. Submitted to Environmental Science and Technology.

Grants

• 2005 to 2006 — — NSF GK-12 Fellowship from National Science Foundation
• 2006 to 2008 — — NSF IGERT SSEI from National Science Foundation

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