Experimental study of neptunyl adsorption onto Bacillus subtilis

An experimental study of Au removal from solution by non-metabolizing bacterial cells and their exudates

“…The removal kinetics were fastest at pH 3.0, with slower removal observed with increasing pH. The pH-dependence of the removal kinetics that we observed is similar to what was observed for Cr(VI) and Np(V) removal by bacteria (Fein et al, 2002;Gorman-Lewis et al, 2005), and indicate that the 2 h results depicted in Figs. 1 and 2 represent only a snapshot of the removal process and not an equilibrium state.…”

Post-adsorption process of Yb phosphate nano-particle formation by Saccharomyces cerevisiae

“…This implies that the binding sites with Yb on cell walls after short-term adsorption may create nucleation sites that induce precipitation reactions on cell surfaces in saturated systems. These Yb phosphate nanoparticles on cell surfaces should be more stable than the Yb complex sites formed during short-term sorption, as most of these short-term processes belong to reversible adsorption equilibrations (Gorman-Lewis et al, 2005;Ginn and Fein, 2008;Ngwenya et al, 2009).…”

Enthalpies of proton adsorption onto Bacillus licheniformis at 25, 37, 50, and 75°C

“…Potentiometric titrations, bulk adsorption experiments, and surface complexation modeling provide quantitative parameters describing proton and metal adsorption (Plette et al, 1995;Fein et al, 1997;Haas et al, 2001;Daughney et al, 2002;Martinez et al, 2002;Ngwenya et al, 2003;Gorman-Lewis et al, 2005). Information regarding reactive site identity can also be inferred from this data.…”