The role of bacterial extracellular polymeric substances in geomicrobiology

J Tourney, BT Ngwenya - Chemical Geology, 2014 - Elsevier
The last two decades have seen geomicrobiology evolve into a broad field encompassing a
wide range of environmentally significant processes such as proton and metal adsorption …

What makes a natural clay antibacterial?

LB Williams, DW Metge, DD Eberl… - … science & technology, 2011 - ACS Publications
Natural clays have been used in ancient and modern medicine, but the mechanism (s) that
make certain clays lethal against bacterial pathogens has not been identified. We have …

Unearthing the antibacterial mechanism of medicinal clay: A geochemical approach to combating antibiotic resistance

KD Morrison, R Misra, LB Williams - Scientific Reports, 2016 - nature.com
Natural antibacterial clays, when hydrated and applied topically, kill human pathogens
including antibiotic resistant strains proliferating worldwide. Only certain clays are …

Copper isotope fractionation during its interaction with soil and aquatic microorganisms and metal oxy (hydr) oxides: Possible structural control

OS Pokrovsky, J Viers, EE Emnova… - … et Cosmochimica Acta, 2008 - Elsevier
This work is aimed at quantifying the main environmental factors controlling isotope
fractionation of Cu during its adsorption from aqueous solutions onto common organic …

Zinc sorption to three gram-negative bacteria: combined titration, modeling, and EXAFS study

V Guiné, L Spadini, G Sarret, M Muris… - … science & technology, 2006 - ACS Publications
The acid− base and Zn sorption properties of three bacteria, Cupriavidus metallidurans
CH34, Pseudomonas putida ATCC12633, and Escherichia coli K12DH5α, were investigated …

Potentiometric titrations of Bacillus subtilis cells to low pH and a comparison of modeling approaches

JB Fein, JF Boily, N Yee, D Gorman-Lewis… - … et Cosmochimica Acta, 2005 - Elsevier
To provide constraints on the speciation of bacterial surface functional groups, we have
conducted potentiometric titrations using the gram-positive aerobic species Bacillus subtilis …

Cd adsorption onto Pseudomonas putida in the presence and absence of extracellular polymeric substances

M Ueshima, BR Ginn, EA Haack… - … et Cosmochimica Acta, 2008 - Elsevier
The role of bacterial extracellular polymeric substances (EPS) in metal adsorption was
determined by studying Cd adsorption onto the gram-negative bacterial species …

Copper isotope fractionation during surface adsorption and intracellular incorporation by bacteria

JU Navarrete, DM Borrok, M Viveros… - … et cosmochimica acta, 2011 - Elsevier
Copper isotopes may prove to be a useful tool for investigating bacteria–metal interactions
recorded in natural waters, soils, and rocks. However, experimental data which attempt to …

Thermodynamic modeling of metal adsorption onto bacterial cell walls: current challenges

JB Fein - Advances in agronomy, 2006 - Elsevier
This chapter summarizes research that improves our understanding of metal‐adsorption
reactions involving bacterial cell walls. The chapter covers two general types of …

Cell surface groups of two picocyanobacteria strains studied by zeta potential investigations, potentiometric titration, and infrared spectroscopy

M Dittrich, S Sibler - Journal of Colloid and Interface Science, 2005 - Elsevier
In order to clarify the role of picocyanobacteria in aquatic biogeochemical processes (eg,
calcite precipitation), cell surface properties need to be investigated. An experimental study …