Familiar phenomena observable in nature are underpinned by microscale processes. We are specifically interested in how measurements conducted at differing scales can be quantitatively related to each other and how structure controls the reactivity of surfaces, complexes, and biomolecules. This theme is central to the Molecular Environmental Soil Science (MESS) program.
Current Projects
Structure, Stability, and Reactivity of Aqueous Metal-Siderophore Complexes
The stability and reactivity of aqueous metal-siderophore complexes are directly related to the complexes' physical architecture.
People: James Harrington.
Publications
Harrington, J.M., Bargar, J.R., Jarzecki, A.A., Roberts, J.G., Sombers, L.A. and Duckworth, O.W. (2012) Biometals, accepted
Duckworth, O.W., Bargar, J.R., and Sposito, G. (2009) Environ. Sci. Technol., 43, 343–349.
Kim, D., Duckworth, O.W., and Strathmann, T.J. (2009) Geochim. Comsochim. Acta, 73, 1297-1311.
Duckworth, O.W., Bargar, J.R., Jarzecki, A.A., Oyerinde, O., Spiro, T.G., and Sposito, G. (2009) Marine Chem., 113, 114-122.
Kim, D., Duckworth, O.W., and Strathmann, T.J. (2010) Geochim. Cosmochim.Acta, 74, 1513-1529.
Surface Complexation and Reactivity Surface complex structures explain sorption and dissolution reactivity.
Publications
Duckworth, O.W., and Martin, S.T. (2001) Geochim. Cosmochim. Acta, 65, 4289-4301.
Duckworth, O.W., Bargar, J.R., and Sposito, G. (2008) Geochim. Cosmochim. Acta, 72, 3371-3380.
Recent Projects
Linking Microscopic and Macroscopic Dissolution Rates of Carbonate Minerals
Unique, quantitive insights result from coupled macroscale and microscale measurements.
Publications
Duckworth, O.W., and Martin, S.T. (2003) Geochim. Cosmochim. Acta, 67, 1787-1801.
Duckworth, O.W., and Martin, S.T. (2004) Geochim. Cosmochim. Acta, 68, 607-621.
Duckworth, O.W., and Martin, S.T. (2004) Am. Min., 89, 554-563.
Duckworth, O.W., Cygan, R.T., and Martin, S.T. (2004) Langmuir, 20, 2938-294.
Perry, T.D., Duckworth, O.W., McNamara, C.J., Martin, S.T., and Mitchell, R. (2004) Environ. Sci. Technol., 38, 3040-3046.
Perry, T.D., Duckworth, O.W., Kendall, T.K., Martin, S.T., and Mitchell, R. (2005) J. Am. Chem. Soc., 127, 5744-5745.
Smits, M.M., Herrmann, A. M., Duane, M., Duckworth, O.W., Bonneville, S., Benning, L., and Lundström, U. (2009) Rev. Fungal Bio. 23, 122-131 .