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Peer-Reviewed Publications (10/8/08)

D. W. Himmelheber, M. Taillefert, K. D. Pennell, J. B. Hughes. 2008. Spatial and temporal evolution of biogeochemical processes following in situ capping of contaminated sediments. Environmental Science and Technology. 41, 4113-4120.

M-L Tercier-Waeber, M. Taillefert. 2008. Remote in situ voltammetric techniques to characterize the biogeochemical cycling of trace metals in aquatic systems. Journal of Environmental Monitoring. 10, 30-54.

G. W. Luther, III, B. T. Glazer, S. Ma, R. E. Trouwborst, T. S. Moore, E. Metzger, C. Kraiya, T. J.Waite, G. Druschel, B. Sundby, M. Taillefert, D. B. Nuzzio, T. M. Shank, B. L. Lewis, and P. J. Brendel. 2008. Use of voltammetric solid-state (micro)electrodes for studying biogeochemical processes: laboratory measurements to real time measurements with an in situ electrochemical analyzer (ISEA). Marine Chemistry. 108, 221-235.

G. Bristow, M. Taillefert. 2008. VOLTINT: A Matlab®-Based Program for Semi-Automated Processing of Geochemical Data Acquired by Voltammetry. Computers and Geosciences. 34, 153-162.

T. S. Moore, D. B. Nuzzio, T. W. Deering, M. Taillefert, G. W. Luther III. 2007. Use of voltammetry to monitor O2 using Au/Hg electrodes and to control physical sensors on an unattended observatory in the Delaware bay. Electroanalysis 19, 2110-2116.

M. Beazley, R.J. Martinez, P.A. Sobecky, M. Taillefert. 2007. Uranium biomineralization as a result of bacterial phosphatase activity: Insights from a bacterial isolate from a contaminated subsurface. Environmental Science & Technology, 41, 5701-5707.

R.J. Martinez, M. Beazley, M. Taillefert, A.K. Arakaki, J. Skolnick, P. A. Sobecky. 2007. Aerobic uranium(VI) bioprecipitation by metal resistant bacteria isolated from radionuclide- and metal-contaminated subsurface soils. Environmental Microbiology, 9, 3122-3133.

M. Taillefert, S. Neuhuber, G. Bristow. 2007. Effect of physical forcing on biogeochemical processes in intertidal marine sediments. Geochemical Transactions, 8,1-15.

M. Taillefert, J. Beckler, E. Carey, J. Burns, T. J. DiChristina. 2007. Voltammetric evidence for the production of endogenous chelators by iron-reducing bacteria to solubilize iron oxides. Journal of Inorganic Biochemistry, 101, 1760-1767.

E. Carey,
M. Taillefert. 2005. The role of soluble iron(III) in the cycling of iron and sulfur in coastal marine sediments. Limnology and Oceanography. 50(4), 1129-1141.

D. Rudolph, S. Neuhuber, C. Kranz, M. Taillefert, B. Mizaikoff. 2004. Scanning electrochemical microscopy imaging of rhodochrosite dissolution using gold amalgam microelectrodes. Analyst. 129, 443-448.

M. Snyder,
M. Taillefert, C. Ruppel. 2004. Redox zonation at the saline-influenced boundaries of a permeable surficial aquifer: Effects of physical forcing on the biogeochemical cycling of iron and manganese. Journal of Hydrology. 296, 164-178.
E. Viollier, C. Rabouille, S. Apitz, E. R. Breuer, G. Chaillou, K. Dedieu, Y. Furukawa, C. Grenz, P. Hall, F. Janssen, J. Morford, J.-C. Poggiale, S. Roberts, T. Shimmield, M. Taillefert, A. Tenberg, F. Wenzhofer, U. Witte. 2003. In situ benthic biogeochemistry: State of the art technologies and guidelines for the future. Journal of Experimental Marine Biology and Ecology, 285-286, 5-31.

M.-H. Tusseau-Vuillemin, R. Gilbin, M. Taillefert. 2003. A dynamic numerical model to characterize labile metal complexes collected with Diffusion Gradients in Thin film (DGT) devices. Environmental Science and  Technology, 37, 1645-1652.

T. F. Rozan, M. Taillefert, R. E. Trouwborst, B. Glazer, S. Ma, J. Herszage, L. M. Valdes, K. S. Price, G. W. Luther III. 2002. Fe-S-P cycling in the sediments of a shallow coastal bay: implications for sediment nutrient release and benthic macroalgal blooms. Limnology and Oceanography. 47, 1346-1354.

M. Taillefert, V. C. Hover, T. F. Rozan, S. M. Theberge, G. W. Luther III. 2002. The Influence of sulfides on soluble Fe(III) in anoxic sediment porewaters. Estuaries. 25, 1088-1096.

M. Taillefert, B. J. MacGregor, J.-F. Gaillard, C.-P. Lienemann, D. Perret, D. A. Stahl. 2002. Evidence for a dynamic cycle between Mn and Co in the water column of a stratified lake. Environmental Science & Technology, 36, 468-476.

M. Taillefert, J.-F. Gaillard. 2002. Reactive Transport modeling of trace elements in the water column of a stratified lake: Iron cycling and metal scavenging. Journal of Hydrology, 256, 16-34.

D. C. Bull, M. Taillefert. 2001 Environmental and seasonal variations in porewaters of a southeastern U.S.A salt marsh as revealed by voltammetric microelectrode profiling. Geochemical Transactions. 13, 1-8.

G. W. Luther III, T. F. Rozan, M. Taillefert, D. B. Nuzzio, C. Di Meo, T. M. Shank, R. A. Lutz, S. C. Cary. 2001. Chemical speciation drives hydrothermal vent ecology. Nature, 410, 813-816.

G. W. Luther III, B. T. Glazer, L. Hohmann, J. I. Popp, M. Taillefert, T. F. Rozan, P. J. Brendel, S. M. Theberge, D. B. Nuzzio. 2001. Sulfur speciation monitored in situ with solid state gold amalgam voltammetric microelectrodes: polysulfides as a special case in sediments, microbial mats, and hydrothermal vent waters. Journal of Environmental Monitoring, 3, 61-66.

M. Taillefert, A.B. Bono, G.W. Luther III. 2000. Reactivity of freshly formed Fe(III) in synthetic solutions and marine porewaters: Voltammetric evidence of an aging process. Environmental Science and Technology, 34(11), 2169-2177. (Pdf File).

M. Taillefert, G.W. Luther III, D. B. Nuzzio. 2000. The Application of Electrochemical Tools for In-Situ Measurements in Aquatic Systems: A Review. Electroanalysis, 12(6), 401-412.

M. Taillefert, C-P. Lienemann, J-F. Gaillard, D. Perret. 2000. Speciation, Reactivity, and Cycling of Fe and Pb in a Meromictic Lake (Paul Lake, MI). Geochimica et Cosmochimica Acta, 64(2), 169-183. (Pdf File).

M. Taillefert, J-F. Gaillard. 1999. Tentacle Ion Exchange Separation of Pb-NOM in Aquatic Systems. Environmental Science and Technology, 33(22), 4107-4111. (Pdf File).
G.W. Luther III, M. Taillefert, A.B. Bono, P.J. Brendel, B. Sundby, C.E. Reimers, D.B. Nuzzio, D. Lovalvo. 1998. Recent developments in the use of voltammetric solid state microelectrodes to understand diagenetic processes. Mineralogical Magazine, 62(A), 921-922.

B. J. MacGregor, M. Taillefert, J-F. Gaillard, D. A. Stahl, C.-P. Lienemann. 1998. Molecular characterization of microbial populations in the water column of a stratified lake (Paul Lake, Michigan) related to chemical zonation, Mineralogical Magazine, 62(A), 933-934.

M. Taillefert and J-F. Gaillard. 1998. The chemical speciation of Pb in the water column of Paul Lake (MI), Mineralogical Magazine, 62(A), 1490-1491.

Books and Book Chapters

S. S. Chow, M. Taillefert. 2005. Biogeochemical cycling of arsenic at the sediment-water interface of a recently flooded freshwater sediment. In Advances in arsenic research: Integration of experimental and observational studies and implications for mitigation. American Chemical Society Symposium Vol. 914.(P. O'Day, D. Vlassopoulos, X. Meng, L. G. Benning eds.) pp. 220-234.

M. Taillefert, T. F. Rozan. 2002. Environmental Electrochemistry: Analyses of Trace Element Biogeochemistry. American Chemical Society Symposium Vol. 811. Oxford University Press. 412 p.

D. B. Nuzzio, M. Taillefert, and G.W. Luther III. 2002. Application of In situ Electroanalytical Techniques to Aquatic and Sediment Systems. In: Environmental Electrochemistry: Analyses of Trace Element Biogeochemistry. American Chemical Society Symposium Vol. 811 (M. Taillefert and T. F. Rozan, eds.). pp. 40-51.

G. W. Luther III, D. B. Nuzzio, M. Taillefert, S. C. Cary, and T. F. Rozan. 2002. Chemical speciation from in-situ voltammetry provides ecological data on biological organisms at hydrothermal vents. In: Environmental Electrochemistry: Analyses of Trace Element Biogeochemistry. American Chemical Society Symposium Vol. 811 (M. Taillefert and T. F. Rozan, eds.). pp. 54-72.

M. Taillefert, T. F. Rozan, B. T. Glazer, J. Herszage, R. E. Trouwborst, and G.W. Luther III. 2002. Seasonal variations of soluble Fe(III) in sediment porewaters as revealed by voltammetric microelectrodes. In: Environmental Electrochemistry: Analyses of Trace Element Biogeochemistry. American Chemical Society Symposium Vol. 811 (M. Taillefert and T. F. Rozan, eds.). pp. 247-264.


Abstracts

2008

M. Beazley, R. J. Martinez, S. M. Webb, P. A. Sobecky, M. Taillefert. 2008. Biomineralization of uranium phosphate from contaminated waste sites. Department of Energy, Environmental Remediation Program. Lansdowne, VA.

R. J. Martinez, M. J. Beazley, C. Wu, T. C. Hazen, G. L. Andersen, S. M. Webb, M. Taillefert, P. A. Sobecky. 2008. Promoting uranium immobilization by the activities of microbial phosphatases. Department of Energy, Environmental Remediation Program. Lansdowne, VA.

D. Meiggs, D. B. Nuzzio, M. Taillefert. 2008. Evaluating the impact of drought conditions on biogeochemical processes in coastal marine sediments. Kindsvater Symposium, Atlanta, GA.

M. Taillefert, D. Meiggs, D. B. Nuzzio, G. W. Luther III. 2008. The effect of tidal forcing on biogeochemical processes in salt marsh sediments. Ocean Science Meeting, Orlando, FL.

M. E. Jones, J. S. Beckler, M. Taillefert. 2008. Satilla River estuary sediments provide a source of soluble organic iron(III) complexes to overlying waters. Ocean Science Meeting, Orlando, FL.

D. Meiggs, G. Bristow, D. B. Nuzzio, M. Taillefert. 2008. In situ depth profile and benthic flux measurements to determine seasonal variations of biogeochemical processes in estuarine and continental shelf sediments of the Satilla River, GA (USA). Ocean Science Meeting, Orlando, FL.

2007

D.W. Himmelheber, M. Taillefert, J.B. Hughes. 2007. In situ capping of contaminated sediments: Biogeochemical characterization of sediments and caps and its impact on contaminant fate and transport. 234th American Chemical Society National Meeting, Boston, MS.

M. Taillefert, D. Meiggs, G. Bristow, D. B. Nuzzio, G. W. Luther III. 2007. Long-Term In Situ Voltammetric Measurements Reveal that Tidal Forcing Promotes Iron Reduction in Intertidal Salt Marsh Sediments. Gordon Research Conference in Chemical Oceanography, Tilton, NH.

D. Meiggs, G. Bristow, J. Schur, D. B. Nuzzio, M. Taillefert. 2007. Development of a benthic lander equipped with an ISEA (in situ electrochemical analyzer) to evaluate the impact of iron reduction on carbon oxidation in continental margin sediments. Gordon Research Conference in Chemical Oceanography, Tilton, NH.

J. Beckler, M. Taillefert. 2007. Chemical characterization of soluble organic-iron(III) complexes in the Satilla River estuary using HP-SEC UV spectrophotometry. Gordon Research Conference in Chemical Oceanography, Tilton, NH.

M. Jones, M. Taillefert. 2007. Quantification and characterization of soluble Fe(III) complexes in coastal sediments by Competitive Ligand Equilibration - Adsorptive Cathodic Stripping Voltammetry (CLE-ACSV). Gordon Research Conference in Chemical Oceanography, Tilton, NH.

S.S. Chow, M. Taillefert. 2007. The catalytic effect of arsenic on iron reduction in freshwater sediments. 233rd American Chemical Society National Meeting, Chicago, IL.

M. J. Beazley, R. J. Martinez, S. Webb, P. A. Sobecky, M. Taillefert. 2007. Bioremediation of uranium in aerobic environments via bacterial phosphatase activity. 233rd American Chemical Society National Meeting, Chicago, IL.

J.S. Beckler, C. M. Fennessey, M. E. Jones, J. L. Burns, T. J. DiChristina, M. Taillefert. 2007. Soluble organic-iron(III) complexes are intermediates in the reduction of iron oxides by Shewanella putrefaciens. Geological Society of America Southeasten Section Meeting, Savannah, GA.

2006

P. A. Sobecky, R. J. Martinez, M. J. Beazley, M. Taillefert. 2006. Promoting uranium immobilization by the activities of microbial phosphatases. Department of Energy, ERSD program. Warrenton, VA.

G. Bristow, M. Taillefert. 2006. Diagenetic modeling to constrain organic carbon remineralization rates in coastal marine sediments. 231st American Chemical Society National Meeting, Atlanta, GA.

S. Chow, M. Taillefert. 2006. The effect of increasing arsenate concentrations on the speciation of arsenic in iron-rich sediments. 231st American Chemical Society National Meeting, Atlanta, GA.

M. Beazley, R.J. Martinez, P. Sobecky, M. Taillefert. 2006. Uranium biomineralization as a result of bacterial phosphatase activity. 231st American Chemical Society National Meeting, Atlanta, GA.

J. Newton, M. Taillefert. 2006. Evidence for manganese-catalyzed nitrogen cycling in salt marsh sediments. 231st American Chemical Society National Meeting, Atlanta, GA.

S. Chow, D. Meiggs, G. Luther III, D.B. Nuzzio, M. Taillefert. 2006. Trace Metal Fluctuations Influenced by Tidal Mixing in the Suboxic and Anoxic Transition Zones at Station 858 in the Chesapeake Bay. 13 th Ocean Sciences Meeting, Honolulu, HI.

M. Taillefert, G. Bristow, J. Schur, D. Meiggs, J. Beckler. 2006. Quantifying Organic Carbon Remineralization Rates in Coastal Marine Sediments Using an In Situ Approach. 13 th Ocean Sciences Meeting, Honolulu, HI.

G. Bristow, S. Neuhuber, M. Taillefert. 2006. The effect of tidal forcing on the cycling of iron and sulfur in intertidal salt marsh sediments. 13 th Ocean Sciences Meeting, Honolulu, HI.

2005

M. Taillefert, G. Bristow, J. Schur, S. Chow, D. Meiggs. In Situ voltammetric measurements in coastal marine sediments. American Chemical Society, Washington, DC.

B. Carey, M. Taillefert. New insights on the formation of pyrite in salt marsh sediments. Gordon Research Conference in Chemical Oceanography. Tilton, NH.

P. A. Sobecky, R. J. Martinez, M. J. Beazley, M. Taillefert. Promoting uranium biomineralization by the activities of microbial phosphatases. Department of Energy, NABIR program. Warrenton, VA.

M. Taillefert, J. R. Elsenbeck, P. A. Sobecky. Biomineralization of uranium in the presence of organic phosphorus, American Chemical Society, San Diego, CA.

G. W. Luther III, D. B. Nuzzio, M. Taillefert, B. T. Glazer, C. Kraiya, T. Waite, J. Tsang, C. Janzen, G. Druschel. Exploring the chemistry of diverse marine environments using in situ voltammetry, American Chemical Society, San Diego, CA.

G. Bristow, M. Taillefert. Tidal effects on iron cycling in intertidal salt marsh sediments, American Society of Limnology and Oceanography Aquatic Science Meeting. Salt Lake City, UT.

J. King, C. Vance-Harris, E. Ingall, M. Taillefert. Evidence for coupling of manganese, nitrogen, and carbon in salt marsh sediments, American Society of Limnology and Oceanography Aquatic Science Meeting. Salt Lake City, UT.

2004

B. Carey, M. Taillefert. New insights on the formation of pyrite in salt marsh sediments. American Society of Limnology and Oceanography Aquatic Science Meeting. Savannah, GA.

2003


S. Chow, M. Taillefert. Arsenic speciation in porewaters of a freshwater sediment. 226th American Chemical Society National Meeting, New York, NY.

G. W. Luther, M. Taillefert, T. F. Rozan, D. Rickard. Geochemical implications of the polysulfide vs sulfide pyrite formation reactions based on real time measurements of soluble reactants. 225th American Chemical Society National Meeting, New Orleans, LA.


G. M. Bristow, M. Taillefert. Iron and phosphorus cycling in intertidal saltmarsh sediments. American Society of Limnology and Oceanography, Aquatic Sciences Meeting, Salt Lake City, UT.

S. Neuhuber, M. Taillefert. High resolution in situ measurements and speciation of redox chemical species during a tidal cycle in saltmarsh sediments. American Society of Limnology and Oceanography, Aquatic Sciences Meeting, Salt Lake City, UT.

E. A. Carey, M. Taillefert. The role of soluble Fe(III) in the formation of FeS and FeS2 in shallow saltmarsh sediments from Skidaway Island, Georgia, USA. American Society of Limnology and Oceanography, Aquatic Sciences Meeting, Salt Lake City, UT.

M. Snyder, M. Taillefert, C. Ruppel. Redox chemical zonation at the salinity transitions of a surficial coastal aquifer. American Society of Limnology and Oceanography, Aquatic Sciences Meeting, Salt Lake City, UT.

2002

M. Taillefert, J.-F. Gaillard. Reactive transport modeling of trace metals in stratified water columns. Goldschmidt Conference. Davos, Switzerland.

M. Taillefert, D. A. Bull. Seasonal and three-dimensional distribution of redox species in saltmarsh sediments by in situ voltammetry. Benthic Dynamics: in situ surveillance of the sediment-water interface. Oceanlab and University of Aberdeen, Scotland.

M. Taillefert, D. A. Bull. The influence of bioturbation on the seasonal and three-dimensional distribution of redox species in saltmarsh sediments. Ocean Science Meeting: American Society of Limnology and Oceanography and American Geophysical Union, Honolulu, HI.

2001

M. Taillefert, G. W. Luther III, D. B. Nuzzio. In situ measurements of redox chemistry in aquatic systems with voltammetric microelectrodes. 28th Annual Conference of the Federation of Analytical Chemistry & Spectroscopy Societies, Detroit, MI. October 7-12, 2001.

D. C. Bull, M. Taillefert, C. A. Moore, T. J. DiChristina. Soluble Fe(III)-organic species in marine sediments. 53rd Southeast Regional Meeting of the American Chemical Society, Savannah, GA.

M. Taillefert, D. C. Bull. Voltammetric Microelectrodes to Investigate the Effect of Bioturbation on the 3-D Distribution of Redox Species in Sediment Porewaters. 221th American Chemical Society National Meeting, San Diego, CA.

2000

M. Taillefert, T. F. Rozan, B. T. Glazer, J. Herszage, R. E. Trouwborst, G.W. Luther III. Seasonal Variations of Soluble Fe(III) in Sediment Porewaters as Revealed by Voltammetric Microelectrodes. 220th American Chemical Society National Meeting, Washington, DC.
M. Taillefert, J-F. Gaillard. Reactive Transport Modeling of Trace Elements in the Water Column of a Stratified Lake: Iron Cycling and Metal Scavenging. 220th American Chemical Society National Meeting, Washington, DC.

G. W. Luther III, M. Taillefert, T. F. Rozan, B. Sundby, D. B. Nuzzio. Determination of Key Porewater Redox Components in Marine and Lake Sediments Using Voltammetric Microelectrodes. Society of Environmental Toxicology and Chemistry (SETAC) 21st Annual Meeting. Nashville, TN.

Luther, III, G. W., M. Taillefert, T. F. Rozan, S. M. Theberge, J. I. Popp, B. T. Glazer, P. J. Brendel, D. B. Nuzzio.  Sulfur speciation monitored in situ with solid state gold amalgam voltammetric microelectrodes. 4th International Symposium on
"Speciation of elements in Biological, Environmental and Toxicological Sciences" Whistler, British Columbia, Canada.

G. W. Luther III, M. Taillefert, D. B. Nuzzio, S. C. Cary, T. F. Rozan. In situ voltammetry at hydrothermal vents. 219th American Chemical Society National Meeting, San Francisco, CA.

1999

M. Taillefert, S.M. Theberge, V. Hover, G.W. Luther III. The Influence of Sulfides on Soluble Fe(III) in Anoxic Sediment Porewaters. 9th Annual V.M.Goldschmidt Conference, Boston (USA).

M. Taillefert, A. B. Bono, G. W. Luther III. Reactivity of freshly formed Fe(III) in synthetic solutions and (pore)waters: Voltammetric Evidence of an Aging Process. Gordon Res. Conf. on Chemical Oceanography, Meriden, NH.

1998

G.W. Luther III, M. Taillefert, A.B. Bono, P.J. Brendel, B. Sundby, C.E. Reimers, D.B. Nuzzio, D. Lovalvo. Recent developments in the use of voltammetric solid state microelectrodes.
8th Annual V.M.Goldschmidt Conference, Toulouse (France).

M. Taillefert, J-F. Gaillard. The chemical speciation of Pb in the water column of Paul Lake (MI).
8th Annual V.M. Goldschmidt Conference, Toulouse (France).

B.J. MacGregor, M. Taillefert, J-F. Gaillard, D.A. Stahl, C-P. Lienemann. Molecular characterization of microbial populations in the water column of a stratified lake (Paul Lake, Michigan) related to chemical zonation.
8th Annual V.M. Goldschmidt Conference, Toulouse (France).

M. Taillefert, A.B. Bono, G.W. Luther III. Voltammetric evidence for the aging and reactivity of freshly formed Fe(III) in marine porewaters.
216th American Chemical Society National Meeting, Boston, MA.

S.M. Theberge, M. Taillefert, A.B. Bono, G.W. Luther III, C.E. Reimers, D.B. Nuzzio, D. Lovalvo. In situ measurement of pore water redox species and pH using microelectrodes from a ROV.
216th American Chemical Society National Meeting, Boston, MA.

1997

1996

1995

1994


Invited Seminars

Marine Science Program, University of South Carolina, Columbia, SC. 2008. The importance of tidal forcing on the biogeochemistry of salt marsh sediments.

Department of Energy, Environmental Remediation Science Program, Lansdowne, VA. 2008. The rol of microbial phosphatases on uranium mobility in the subsurface.

Estuarine Research Federation. Science and Management: Observations, Syntheses, Solutions, Providence, RI. 2007. Role of Iron in the Remineralization of Carbon in Coastal Marine Sediments.

11th Workshop on Progress in Analytical Methodologies for Trace Metal Speciation, Münster, Germany. 2007. Combining in-situ measurements with speciation techniques to characterize biogeochemical processes in sediments.

Gordon Research Conference in Environmental Chemistry: Water, Hennecke, NH. 2006. New insigths into the role of iron in sediment biogeochemistry.

Skidaway Institute of Oceanography, Savannah, GA. 2006. The role of tidal forcing on sediment biogeochemistry in salt marshes.

School of Earth and Atmospheric Sciences
, Georgia Institute of Technology, Atlanta, GA. 2005. A new biogeochemical approach to characterize carbon fluxes to marine sediments.

The 15th Annual Goldschmidt Conference, Moscow, ID. 2005. Formation of soluble organic-Fe(III) complexes during microbial iron reduction.

Savannah River Ecology Laboratory. 2005. Biogeochemical cycling of metals in aquatic systems: Field and laboratory approaches.

SECOSEE (SouthEast Center for Ocean Sciences Education Excellence) - Fernbank Science Center. 2005. Characterizing biogeochemical processes that control carbon cycling in sediments.

American Society of Limnology and Oceanography Aquatic Science Meeting, Savannah GA. 2004. The role of tidal forcing on biogeochemical processes in salt marsh sediments.

Department of Oceanography, Florida State University. 2004. Dynamics of diagenetic processes in intertidal salt marsh sediments.

Gordon Research Conference in Chemical Oceanography. 2003. Dynamics of Diagenetic Processes in Marine Sediments: New Insights from Voltammetric Techniques.

ACRES and Summer Research Program,
Department of Geology, Georgia State University. 2003.
Characterizing Biogeochemical Processes that Control Carbon Cycling in Sediments.

Center for Catalysis and Surface Science, Northwestern University. 2002. Mechanisms of Microbial Metal Reduction: A Chemical and Biological Agreement?

Department of Geology, Georgia State University. 2002.

Life in Extreme Environments: Does geochemistry regulate deep-sea hydrothermal vent ecology?

Department of Marine Sciences, University of Georgia. 2001
Does chemistry control the biology in marine sulfidic environments? Insights from in situ voltammetry in coastal sediments and at hydrothermal vents.

School of Civil and Environmental Engineering, Georgia Institute of Technology, GA. 2001.
In situ speciation of iron and sulfide in two marine environments with high sulfide concentrations: does chemistry control the biology or biology control the chemistry?

Dauphin Island Sea Lab, Dauphin Island, AL. 2001.
In situ speciation of iron and sulfide in two marine environments with high sulfide concentrations: does chemistry control the biology or biology control the chemistry?

Department of Civil Engineering, Northwestern University, Evanston, IL. 2000.
In situ speciation of iron and sulfide in two marine environments with high sulfide concentrations: a shallow estuary (Rehoboth Bay, DE) and deep sea hydrothermal vents (9oN EPR).

Department of Civil Engineering, University of Connecticut, Storrs, CT. 1999.
Distribution of Trace Metals in Aquatic Environments: Analytical Speciation and Modeling.

School of Earth and Atmospheric Sciences, Georgia Institute of Technology, Atlanta, GA. 1999.
Distributions of trace metals in aquatic systems: the need for in situ analytical speciation.

Department of Chemistry, University of Washington, Seattle, WA. 1998.
Fate of trace metals in aquatic environments: The need for in situ analytical speciation.

General Electric Plastics, Mt. Vernon, IN. 1998.
Heavy metals in aquatic environments: The importance of chemical speciation for predicting contamination problems.