Geomicrobiology
2023 | Weiduo Hao, Logan Swaren, Jingyi Wang, Daniel Baker, Scott Melnyk, George W. Owttrim, Hongbo Zeng, Thomas J. Algeo, Murray K. Gingras, Daniel S. Alessi, Kurt O. Konhauser
Clay minerals and cyanobacteria occur ubiquitously in nature, and both independently influence trace metal cycling due to their high specific surface areas and reactivity. Although the surface reactivity of each is well-studied, the reactivity of clay-cyanobacterial aggregates has received less attention. Here, we performed potentiometric acid-base titrations and Cd adsorption experiments on various concentrations of…
2021 | Logan Swaren, Weiduo Hao, Scott Melnyk, Daniel Baker, Yuhao Li, George W. Owttrim, Hongbo Zeng, Murray K. Gingras, Daniel S. Alessi, Kurt O. Konhauser
Cyanobacteria are abundant in nearly every surface environment on Earth. Understanding their chemical reactivity and metal binding capacity with varying ionic strength (IS) is paramount to understanding trace metal cycling in natural environments. We conducted an investigation on the cell surface reactivity of the freshwater cyanobacterium Synechocystis sp. PCC 6803 at freshwater (0.01 M NaCl) and marine (0.56 M NaCl) IS…