Owen W. Duckworth

Department of Soil Science
North Carolina State University
PO Box 7619
Raleigh, North Carolina 27695-7619

Room: 3208
Office Phone: 919.513.1577
Email: owen_duckworth@ncsu.edu

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Specialty: Biogeochemistry

The activity of microbes greatly affects the biogeochemical flow of nutrients and contaminants in the environment. Current research focuses primarily on the thermodynamics and kinetics of aqueous and interfacial reactions involving biogenic exudates that contribute to understanding the biogeochemical cycling of natural and anthropogenic species. My approach is to blend traditional wet-chemical, field, and microbiological methods with modern spectroscopic, microscopic, genetic, and theoretical techniques to obtain an understanding of mechanisms and reaction pathways on molecular to macroscopic scales.


Academic - Referred Journals

  • Duckworth, O.W., Heitman, J.L., and Polizzotto, M.L. (2013) Soil water: From molecular structure to behavior, Nature Education Knowledge, in press.
  • Harrington, J.M., Gardner, T.G., Amoozegar, A., Andrews M.Y., Rivera, N.A., and Duckworth, O.W. (2013) A workshop to facilitate the development of learning modules for 6-12 grade science classes based on biogeochemical research, Natural Sciences Education, 42, 75-84.
  • Duckworth, O.W. and Harrington, J.M., 2012. Student Presentations of Case Studies to Illustrate Core Concepts in Soil Biogeochemistry, Journal of Natural Resources and Life Sciences Education, 41: 35-43.

Research - Refereed Journals

  • Duckworth, O.W., Akafia, M.M., Andrews, M.Y., and Bargar, J.R. (2014) Siderophore-Promoted Dissolution of Chromium from Hydroxide Minerals, Environmental Science: Processes and Impacts, in press.
  • Kang, J., McLaughlin, R.A., Sowers, T.D., Duckworth, O.W., Amoozegar, A., and Heitman, J.L. (2013) Turbidimetric determination of anionic polyacrylamide in soil extracts. Journal of Environmental Quality, 42, 1902-1907.
  • Kruft, B.I., Harrington, J.M., Duckworth, O.W., Jarzecki, A.A. (2013) Quantum mechanical investigation of aqueous desferrioxamine B metal complexes: Trends in structure, binding, and spectroscopy, Journal of Inorganic Biochemistry, 129, 150-161.
  • Abit, S.M., Vepraskas, M.J., Duckworth, O.W., and Amoozegar A. (2013) Dissolution of Phosphorus into Pore-Water Flowing through an organic soil, Geoderma, 197-198, 51-58
  • Harrington, J.M., Bargar, J.R., Jarzecki, A.A., Roberts, J.G., Sombers, L.A. and Duckworth, O.W. 2012. Trace metal complexation by the triscatecholate siderophore protochelin: structure and stability, Biometals, 25: 393-412.
  • Harrington, J.M., Parker, D.L., Bargar, J.R., Jarzecki, A.A., Tebo, B.M., Sposito, G. and Duckworth, O.W. 2012. Structural dependence of Mn complexation by siderophores: Donor group dependence on complex stability and reactivity, Geochimica et Cosmochimica Acta, 88: 106-119.
  • Park, M., Kim, H.-J., Kim, K., Duckworth, O.W., and Komarneni, S. (2012) Hydronium-promoted equilibrium mechanism for the alkali metal cation exchange reaction in Na-4-mica, Journal of Physical Chemistry C, 116, 18678-18683.
  • Wu L., Osmond, D.L., Graves, A.K., Burchell, M.R., and Duckworth, O.W. (2012) Relationships between nitrogen transformation rates and gene abundance in riparian buffer soils, Environmental Management, 50, 861-874.
  • Bi, Y., Hesterberg, D. L., and Duckworth, O.W. 2010. Siderophore-Promoted Dissolution of Cobalt from Hydroxide Minerals, Geochimica et Cosmochimica Acta, 74: 2915-2925.
  • Kim, D., Duckworth, O.W., and Strathmann, T.J. 2010. Reactions of aqueous iron-DFOB (desferrioxamine B) complexes with flavin mononucleotide in the absence of strong iron(II) chelators, Geochimica et Cosmochimica Acta, 74:1513-1529.
  • Saal, L.B., and Duckworth, O.W. 2010. Synergistic Dissolution of Manganese Oxides as Promoted by Siderophores and Small Organic Acids, Soil Science Society of America Journal, 74:2032-2038.
  • Smits, M.M., Herrmann, A. M., Duane, M., Duckworth, O.W., Bonneville, S., Benning, L., and Lundstrom, U. 2009. The fungal-mineral interface: Challenges and considerations of micro-analytical developments, Fungal Biology Reviews, Fungal Biology Reviews, 23: 122-131
  • Duckworth, O.W., Bargar, J.R., and Sposito, G. 2009. Coupled Biogeochemical Cycling of Iron and Manganese as Mediated by Microbial Siderophores, BioMetals, 22: 605-613.
  • Duckworth, O.W., Bargar, J.R., and Sposito, G. 2009. Quantitative-Structure Activity Relationships for Aqueous Metal-Siderophore Complexes. Environmental Science and Technology, 43:343-349.
  • Duckworth, O.W., Bargar, J.R., Jarzecki, A.A., Oyerendi, O. Spiro, T.G., and Sposito, G. 2009. An Exceptionally Stable Cobalt(III)-Desferrioxamine B Complex. Marine Chemistry, 113:114-122.
  • Duckworth, O.W., Holmstrom, S.J.M., Pena, J., and Sposito, G. 2009. Biogeochemistry of Iron Oxidation in a Circumneutral Freshwater Habitat, Chemical Geology, 260:149-158.
  • Kim, D., Duckworth, O.W., and Strathmann, T.J. 2009. Hydroxamate Siderophore-Promoted Reduction of Nitroaromatic Contaminants by Iron(II), Geochimica et Cosmochimica Acta, 73: 1297-1311.
  • Duckworth, O.W., Bargar, J.R., and Sposito, G.(2008) Sorption of Ferric Iron from Ferrioxamine B to Synthetic and Biogenic Layer Type Manganese Oxides, Geochimica et Cosmochimica Acta, 72, 3371-3380.
  • Duckworth, O.W., and Sposito, G. 2007. Siderophore-Promoted Dissolution of Synthetic and Biogenic Layer Type Mn Oxides, Chemical Geology, 242: 202-213.
  • Pena, J., Duckworth, O.W., Bargar, J.R., and Sposito, G. 2007. Dissolution of Hausmannite in the Presence of the Trihydroxamate Siderophore Desferrioxamine B, Geochimica et Cosmochimica Acta, 71:5661-5671.
  • Duckworth, O.W., and Sposito, G. 2005. Siderophore-Manganese(III) Interactions I. Air-Oxidation of Manganese(II) Promoted by Desferrioxamine B, Environmental Science and Technology, 39: 6037-6044.
  • Duckworth, O.W., and Sposito, G. 2005. Siderophore-Manganese(III) Interactions II. Manganite Dissolution Promoted by Desferrioxamine B, Environmental Science and Technology, 39: 6045-6051.
  • Duckworth, O.W., and Martin, S.T. 2004. Dissolution Rates and Pit Morphologies of Rhombohedral Carbonate Minerals. American Mineralogist, 89:554-563.
  • Duckworth, O.W., and Martin, S.T. 2004. Role of Molecular Oxygen in the Dissolution of Siderite and Rhodochrosite. Geochimica et Cosmochimica Acta, 68:607-621.
  • Duckworth, O.W., Cygan, R.T., and Martin, S.T. 2004. Linear Free Energy Relationships between Dissolution Rates and Molecular Modeling Energies of Rhombohedral Carbonates. Langmuir, 20:2938-2946.
  • Duckworth, O.W., and Martin, S.T. 2003. Connections between Surface Complexation and Geometric Models of Mineral Dissolution Investigated for Rhodochrosite. Geochimica et Cosmochimica Acta, 67:1787-1801.
  • Duckworth, O.W., and Martin, S.T. 2001. Surface Complexation and Dissolution of Hematite by C1-C6 Dicarboxylic Acids at pH = 5.0. Geochimica et Cosmochimica Acta, 65:4289-4301.
  • Martin, S.T., Schlenker, J., Chelf, J.H., and Duckworth, O.W. 2001. Structure-Activity Relationships of Mineral Dusts as Heterogeneous Nuclei for Ammonium Sulfate Crystallization from Supersaturated Aqueous Solutions. Environmental Science and Technology, 35, 1624-1629.