Matthew S. Varonka, Ph.D.
Matthew Varonka is a Research Chemist with the USGS Geology, Energy & Minerals (GEM) Science Center in Reston, VA.
Matthew works in the Eastern Energy and Environmental Laboratory (EEEL), which is involved in a variety of research goals relating energy and the environment. Matt graduated from Penn State University with a B.S. in chemistry and went on to earn a Ph.D. in inorganic chemistry from Georgetown University before joining the USGS in 2010.
Science and Products
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The effect of coal bed dewatering and partial oxidation on biogenic methane potential The effect of coal bed dewatering and partial oxidation on biogenic methane potential
Coal formation dewatering at a site in the Powder River Basin was associated with enhanced potential for secondary biogenic methane determined by using a bioassay. We hypothesized that dewatering can stimulate microbial activity and increase the bioavailability of coal. We analyzed one dewatered and two water-saturated coals to examine possible ways in which dewatering influences coal...
Authors
Elizabeth Jones, Steve H. Harris, Elliott P. Barnhart, William H. Orem, Arthur C. Clark, M.D. Corum, Julie D. Kirshtein, Matthew S. Varonka, Mary A. Voytek
Non-USGS Publications**
Orem, W.; Varonka, M.; Crosby, L.; Haase, K.; Loftin, K.; Hladik, M.; Akob, D.M.; Tatu, C.; Mumford, A.; Jaeschke, J.; Bates, A.; Schell, T. Organic geochemistry and toxicology of a stream impacted by unconventional oil and gas wastewater disposal operations, Appl. Geochem., 2017, 80, 155-167.
Barnhart, E.P.; Davis, K.J.; Varonka, M.; Orem, W.; Cunningham, A.B.; Ramsay, B.D.; Fields, M.W. Enhanced coal-dependent methanogenesis coupled with algal biofuels: Potential water recycle and carbon capture, Int. J. of Coal Geol., 2017, 171, 69-75.
Hall, M. D.; Brimacombe, K. R.; Varonka, M. S.; Pluchino, K. M.; Monda, J. K.; Li, J.; Walsh, M. J.; Boxer, M. B.; Warren, T. H.; Fales, H. M.; Gottesman, M. M. Synthesis and Structure-Activity Evalution of Isatin-β-thiosemicarbazones with Improved Selective Activity toward Multidrug-Resistant Cells Expressing P-Glycoprotein, J. Med. Chem., 2011, 54(16), 5878-5889.
Wiese, S.; Badiei, Y. M.; Gephart, R. T.; Mossin, S.; Varonka, M. S.; Melzer, M. M.; Meyer, K.; Cundari, T. R.; Warren, T. H. Catalytic C-H Amination with Unactivated Amines through Copper(II) Amides, Angew. Chem. Int. Ed., 2010, 49(47), 8850-8855.
Varonka, M. S.; Warren, T. H. Three-Coordinate N-Heterocyclic Carbene Nickel Nitrosyl Complexes, Organometallics, 2010, 29(4), 717-720.
Varonka, Matthew S.; Warren, Timothy H.; Dugan, Thomas R.; Cowley, Ryan E.; Holland, Patrick L. “β-diketiminate Precursors HLMe,Me3 and TlLMe,Me3 (LMe,Me3 = 2,4-bis(2,6-mesitylimido)pentyl),” Complexes of Bulky β-Diketiminate Ligands, in Inorg. Synth. 2010, 35, John Wiley & Sons, Inc., Hoboken, NJ, USA.
Varonka, M. S.; Warren, T. H. S-Nitrosothiol and Nitric Oxide Reactivity at Zinc Thiolates, Inorg. Chem., 2009, 48(13), 5605-5607.
Varonka, M.S.; Warren, T.H. S-nitrosothiol and nitric oxide reactivity at β-diketiminato zinc thiolates, Inorg. Chim. Acta, 2007, 360(1), 317-328.
**Disclaimer: The views expressed in Non-USGS publications are those of the author and do not represent the views of the USGS, Department of the Interior, or the U.S. Government.
Science and Products
Filter Total Items: 24
No Result Found
Filter Total Items: 25
The effect of coal bed dewatering and partial oxidation on biogenic methane potential The effect of coal bed dewatering and partial oxidation on biogenic methane potential
Coal formation dewatering at a site in the Powder River Basin was associated with enhanced potential for secondary biogenic methane determined by using a bioassay. We hypothesized that dewatering can stimulate microbial activity and increase the bioavailability of coal. We analyzed one dewatered and two water-saturated coals to examine possible ways in which dewatering influences coal...
Authors
Elizabeth Jones, Steve H. Harris, Elliott P. Barnhart, William H. Orem, Arthur C. Clark, M.D. Corum, Julie D. Kirshtein, Matthew S. Varonka, Mary A. Voytek
Non-USGS Publications**
Orem, W.; Varonka, M.; Crosby, L.; Haase, K.; Loftin, K.; Hladik, M.; Akob, D.M.; Tatu, C.; Mumford, A.; Jaeschke, J.; Bates, A.; Schell, T. Organic geochemistry and toxicology of a stream impacted by unconventional oil and gas wastewater disposal operations, Appl. Geochem., 2017, 80, 155-167.
Barnhart, E.P.; Davis, K.J.; Varonka, M.; Orem, W.; Cunningham, A.B.; Ramsay, B.D.; Fields, M.W. Enhanced coal-dependent methanogenesis coupled with algal biofuels: Potential water recycle and carbon capture, Int. J. of Coal Geol., 2017, 171, 69-75.
Hall, M. D.; Brimacombe, K. R.; Varonka, M. S.; Pluchino, K. M.; Monda, J. K.; Li, J.; Walsh, M. J.; Boxer, M. B.; Warren, T. H.; Fales, H. M.; Gottesman, M. M. Synthesis and Structure-Activity Evalution of Isatin-β-thiosemicarbazones with Improved Selective Activity toward Multidrug-Resistant Cells Expressing P-Glycoprotein, J. Med. Chem., 2011, 54(16), 5878-5889.
Wiese, S.; Badiei, Y. M.; Gephart, R. T.; Mossin, S.; Varonka, M. S.; Melzer, M. M.; Meyer, K.; Cundari, T. R.; Warren, T. H. Catalytic C-H Amination with Unactivated Amines through Copper(II) Amides, Angew. Chem. Int. Ed., 2010, 49(47), 8850-8855.
Varonka, M. S.; Warren, T. H. Three-Coordinate N-Heterocyclic Carbene Nickel Nitrosyl Complexes, Organometallics, 2010, 29(4), 717-720.
Varonka, Matthew S.; Warren, Timothy H.; Dugan, Thomas R.; Cowley, Ryan E.; Holland, Patrick L. “β-diketiminate Precursors HLMe,Me3 and TlLMe,Me3 (LMe,Me3 = 2,4-bis(2,6-mesitylimido)pentyl),” Complexes of Bulky β-Diketiminate Ligands, in Inorg. Synth. 2010, 35, John Wiley & Sons, Inc., Hoboken, NJ, USA.
Varonka, M. S.; Warren, T. H. S-Nitrosothiol and Nitric Oxide Reactivity at Zinc Thiolates, Inorg. Chem., 2009, 48(13), 5605-5607.
Varonka, M.S.; Warren, T.H. S-nitrosothiol and nitric oxide reactivity at β-diketiminato zinc thiolates, Inorg. Chim. Acta, 2007, 360(1), 317-328.
**Disclaimer: The views expressed in Non-USGS publications are those of the author and do not represent the views of the USGS, Department of the Interior, or the U.S. Government.