My research interests focus on understanding the chemistry of water-rock-microbe interactions. Considering these interactions from the perspective of the environment motivates investigations of natural and anthropogenic processes that influence biogeochemical cycles, mineral dissolution, and the movement of chemical species in the environment. Considering these interactions from the perspective of microbial life motivates investigations into the energetics and adaptations that allow microbial life to flourish in extremely harsh chemical and physical environments. Understanding water-rock-microbe interactions on Earth will inform our search for life on other planets. I combine interdisciplinary techniques from microbiology, low temperature aqueous geochemistry, physical chemistry, and thermodynamic modeling to develop a quantitative understanding of the chemistry occurring at the hydrated interface of life and rocks.<\/p>\n\n\n\n
Hart, C., & Gorman\u2010Lewis, D. (2020). Energetics of Acidianus ambivalens growth in response to oxygen availability. Geobiology. https:\/\/doi.org\/10.1111\/gbi.12413<\/a><\/p>\n\n\n\n Gorman-Lewis, D., Martens-Habbena, W., & Stahl, D. A. (2019). Cu(II) adsorption onto ammonia-oxidizing bacteria and archaea. Geochimica et Cosmochimica Acta, 255, 127\u2013143. https:\/\/doi.org\/10.1016\/j.gca.2019.04.011<\/a><\/p>\n\n\n\n Gorman-Lewis, D. (2019). The Application of Isothermal Titration Calorimetry for Investigating Proton and Metal Interactions on Microbial Surfaces. In Analytical Geomicrobiology (pp. 63\u201378). Cambridge University Press. https:\/\/doi.org\/10.1017\/9781107707399.002<\/a><\/p>\n\n\n\n Alam, Md. S., Gorman-Lewis, D., Chen, N., Flynn, S. L., Ok, Y. S., Konhauser, K. O., & Alessi, D. S. (2018). Thermodynamic Analysis of Nickel(II) and Zinc(II) Adsorption to Biochar. \u200bEnvironmental Science & Technology\u200b, 6246\u20136255. https:\/\/doi.org\/10.1021\/acs.est.7b06261<\/a><\/p>\n\n\n\n Gorman-Lewis, D., Martens-Habbena, W., & Stahl, D. A. (2014). Thermodynamic characterization of proton-ionizable functional groups on the cell surfaces of ammonia-oxidizing bacteria and archaea. \u200bGeobiology\u200b, 157\u2013171. https:\/\/doi.org\/10.1111\/gbi.12075<\/a><\/p>\n\n\n\n Gorman-Lewis, D. (2014). Enthalpies and Entropies of Cd and Zn Adsorption ontoBacillus licheniformisand Enthalpies and Entropies of Zn Adsorption ontoBacillus subtilisfrom Isothermal Titration Calorimetry and Surface Complexation Modeling. \u200bGeomicrobiology Journal\u200b, 383\u2013395. https:\/\/doi.org\/10.1080\/01490451.2013.835887<\/a><\/p>\n\n\n\n Harrold, Z. R., & Gorman-Lewis, D. (2013). Thermodynamic analysis of Bacillus subtilis endospore protonation using isothermal titration calorimetry. \u200bGeochimica et Cosmochimica Acta\u200b, 296\u2013305. https:\/\/doi.org\/10.1016\/j.gca.2013.01.002<\/a><\/p>\n\n\n\n Gorman-Lewis, D., Jensen, M. P., Harrold, Z. R., & Hertel, M. R. (2013). Complexation of neptunium(V) with Bacillus subtilis endospore surfaces and their exudates. \u200bChemical Geology\u200b, 75\u201383. https:\/\/doi.org\/10.1016\/j.chemgeo.2013.01.004<\/a><\/p>\n\n\n\n Gorman-Lewis, D. (2011). Enthalpies of proton adsorption onto Bacillus licheniformis at 25, 37, 50, and 75\u00b0C. \u200bGeochimica et Cosmochimica Acta\u200b, 1297\u20131307. https:\/\/doi.org\/10.1016\/j.gca.2010.12.009<\/a><\/p>\n\n\n\n Gorman-Lewis, D., Shvareva, T., Kubatko, K.-A., Burns, P. C., Wellman, D. M., McNamara, B., Szymanowski, J. E. S., Navrotsky, A., & Fein, J. B. (2009). Thermodynamic Properties of Autunite, Uranyl Hydrogen Phosphate, and Uranyl Orthophosphate from Solubility and Calorimetric Measurements. \u200bEnvironmental Science & Technology\u200b, 7416\u20137422. https:\/\/doi.org\/10.1021\/es9012933<\/a><\/p>\n\n\n\n