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Title: Role of Sulfhydryl Sites on Bacterial Cell Walls in the Biosorption, Mobility and Bioavailability of Mercury and Uranium

Abstract

Bacteria are ubiquitous in a wide-range of low temperature aqueous systems, and can strongly affect the distribution and transport of metals and radionuclides in the environment. However, the role of metal adsorption onto bacteria, via the reactive cell wall functional groups, has been largely overlooked. Previous macroscale metal sorption, and XAS studies have shown that carboxyl and phosphoryl functional groups to be the important metal binding groups on bacterial cell walls and the sulfhydryl groups were not considered. The goal of our investigation was to evaluate the density of the sulfhydryl sites on different bacterial cell membranes that are common to soil systems, the binding affinities of these reactive groups towards Hg, and how this binding modifies the speciation of Hg in the natural waters.

Authors:
 [1];  [2];  [3]
  1. Princeton Univ., NJ (United States). Dept. of Geosciences
  2. Univ. of Notre Dame, IN (United States). Dept. of Civil Engineering and Geological Sciences
  3. Argonne National Lab. (ANL), Argonne, IL (United States)
Publication Date:
Research Org.:
Princeton Univ., NJ (United States)
Sponsoring Org.:
USDOE Office of Science (SC), Biological and Environmental Research (BER) (SC-23)
OSTI Identifier:
1325258
Report Number(s):
DOE-Princeton-SC0005347
DOE Contract Number:  
SC0005347
Resource Type:
Technical Report
Country of Publication:
United States
Language:
English
Subject:
54 ENVIRONMENTAL SCIENCES; heavy metal; bacterial cell; mercury

Citation Formats

Myneni, Satish C. B., Fein, Jeremy, and Mishra, Bhoopesh. Role of Sulfhydryl Sites on Bacterial Cell Walls in the Biosorption, Mobility and Bioavailability of Mercury and Uranium. United States: N. p., 2016. Web. doi:10.2172/1325258.
Myneni, Satish C. B., Fein, Jeremy, & Mishra, Bhoopesh. Role of Sulfhydryl Sites on Bacterial Cell Walls in the Biosorption, Mobility and Bioavailability of Mercury and Uranium. United States. doi:10.2172/1325258.
Myneni, Satish C. B., Fein, Jeremy, and Mishra, Bhoopesh. Fri . "Role of Sulfhydryl Sites on Bacterial Cell Walls in the Biosorption, Mobility and Bioavailability of Mercury and Uranium". United States. doi:10.2172/1325258. https://www.osti.gov/servlets/purl/1325258.
@article{osti_1325258,
title = {Role of Sulfhydryl Sites on Bacterial Cell Walls in the Biosorption, Mobility and Bioavailability of Mercury and Uranium},
author = {Myneni, Satish C. B. and Fein, Jeremy and Mishra, Bhoopesh},
abstractNote = {Bacteria are ubiquitous in a wide-range of low temperature aqueous systems, and can strongly affect the distribution and transport of metals and radionuclides in the environment. However, the role of metal adsorption onto bacteria, via the reactive cell wall functional groups, has been largely overlooked. Previous macroscale metal sorption, and XAS studies have shown that carboxyl and phosphoryl functional groups to be the important metal binding groups on bacterial cell walls and the sulfhydryl groups were not considered. The goal of our investigation was to evaluate the density of the sulfhydryl sites on different bacterial cell membranes that are common to soil systems, the binding affinities of these reactive groups towards Hg, and how this binding modifies the speciation of Hg in the natural waters.},
doi = {10.2172/1325258},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Fri Sep 16 00:00:00 EDT 2016},
month = {Fri Sep 16 00:00:00 EDT 2016}
}

Technical Report:

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