Ghent University Academic Bibliography

Advanced

Biological recovery of platinum complexes from diluted aqueous streams by axenic cultures

Synthia Maes, Ruben Props UGent, Jeffrey P Fitts, Rebecca De Smet, Frank Vanhaecke UGent, Nico Boon UGent and Tom Hennebel UGent (2017) PLOS ONE. 12(1).
abstract
The widespread use of platinum in high-tech and catalytic applications has led to the production of diverse Pt loaded wastewaters. Effective recovery strategies are needed for the treatment of low concentrated waste streams to prevent pollution and to stimulate recovery of this precious resource. The biological recovery of five common environmental Pt-complexes was studied under acidic conditions; the chloro-complexes PtCl42- and PtCl62-, the amine-complex Pt(NH3)(4)Cl-2 and the pharmaceutical complexes cisplatin and carboplatin. Five bacterial species were screened on their platinum recovery potential; the Gram-negative species Shewanella oneidensis MR-1, Cupriavidus metallidurans CH34, Geobacter metallireducens, and Pseudomonas stutzeri, and the Gram-positive species Bacillus toyonensis. Overall, PtCl42- and PtCl62- were completely recovered by all bacterial species while only S. oneidensis and C. metallidurans were able to recover cisplatin quantitatively (99%), all in the presence of H-2 as electron donor at pH 2. Carboplatin was only partly recovered (max. 25% at pH 7), whereas no recovery was observed in the case of the Pt-tetraamine complex. Transmission electron microscopy (TEM) revealed the presence of both intra- and extracellular platinum particles. Flow cytometry based microbial viability assessment demonstrated the decrease in number of intact bacterial cells during platinum reduction and indicated C. metallidurans to be the most resistant species. This study showed the effective and complete biological recovery of three common Pt-complexes, and estimated the fate and transport of the Pt-complexes in wastewater treatment plants and the natural environment.
Please use this url to cite or link to this publication:
author
organization
year
type
journalArticle (original)
publication status
published
subject
keyword
SULFATE-REDUCING BACTERIA, PRECIOUS METALS, BIOREDUCTIVE DEPOSITION, HALOPHILIC BACTERIA, FLOW-CYTOMETRY, WASTE-WATER, NANOPARTICLES, PALLADIUM, REDUCTION, ENVIRONMENTS
journal title
PLOS ONE
PLoS ONE
volume
12
issue
1
article number
e0169093
pages
17 pages
Web of Science type
Article
Web of Science id
000391612300112
ISSN
1932-6203
DOI
10.1371/journal.pone.0169093
language
English
UGent publication?
yes
classification
A1
copyright statement
I have retained and own the full copyright for this publication
id
8502844
handle
http://hdl.handle.net/1854/LU-8502844
date created
2017-01-19 08:44:33
date last changed
2018-01-29 12:18:36
@article{8502844,
  abstract     = {The widespread use of platinum in high-tech and catalytic applications has led to the production of diverse Pt loaded wastewaters. Effective recovery strategies are needed for the treatment of low concentrated waste streams to prevent pollution and to stimulate recovery of this precious resource. The biological recovery of five common environmental Pt-complexes was studied under acidic conditions; the chloro-complexes PtCl42- and PtCl62-, the amine-complex Pt(NH3)(4)Cl-2 and the pharmaceutical complexes cisplatin and carboplatin. Five bacterial species were screened on their platinum recovery potential; the Gram-negative species Shewanella oneidensis MR-1, Cupriavidus metallidurans CH34, Geobacter metallireducens, and Pseudomonas stutzeri, and the Gram-positive species Bacillus toyonensis. Overall, PtCl42- and PtCl62- were completely recovered by all bacterial species while only S. oneidensis and C. metallidurans were able to recover cisplatin quantitatively (99\%), all in the presence of H-2 as electron donor at pH 2. Carboplatin was only partly recovered (max. 25\% at pH 7), whereas no recovery was observed in the case of the Pt-tetraamine complex. Transmission electron microscopy (TEM) revealed the presence of both intra- and extracellular platinum particles. Flow cytometry based microbial viability assessment demonstrated the decrease in number of intact bacterial cells during platinum reduction and indicated C. metallidurans to be the most resistant species. This study showed the effective and complete biological recovery of three common Pt-complexes, and estimated the fate and transport of the Pt-complexes in wastewater treatment plants and the natural environment.},
  articleno    = {e0169093},
  author       = {Maes, Synthia and Props, Ruben and Fitts, Jeffrey P and De Smet, Rebecca and Vanhaecke, Frank and Boon, Nico and Hennebel, Tom},
  issn         = {1932-6203},
  journal      = {PLOS ONE},
  keyword      = {SULFATE-REDUCING BACTERIA,PRECIOUS METALS,BIOREDUCTIVE DEPOSITION,HALOPHILIC BACTERIA,FLOW-CYTOMETRY,WASTE-WATER,NANOPARTICLES,PALLADIUM,REDUCTION,ENVIRONMENTS},
  language     = {eng},
  number       = {1},
  pages        = {17},
  title        = {Biological recovery of platinum complexes from diluted aqueous streams by axenic cultures},
  url          = {http://dx.doi.org/10.1371/journal.pone.0169093},
  volume       = {12},
  year         = {2017},
}

Chicago
Maes, Synthia, Ruben Props, Jeffrey P Fitts, Rebecca De Smet, Frank Vanhaecke, Nico Boon, and Tom Hennebel. 2017. “Biological Recovery of Platinum Complexes from Diluted Aqueous Streams by Axenic Cultures.” Plos One 12 (1).
APA
Maes, Synthia, Props, R., Fitts, J. P., De Smet, R., Vanhaecke, F., Boon, N., & Hennebel, T. (2017). Biological recovery of platinum complexes from diluted aqueous streams by axenic cultures. PLOS ONE, 12(1).
Vancouver
1.
Maes S, Props R, Fitts JP, De Smet R, Vanhaecke F, Boon N, et al. Biological recovery of platinum complexes from diluted aqueous streams by axenic cultures. PLOS ONE. 2017;12(1).
MLA
Maes, Synthia, Ruben Props, Jeffrey P Fitts, et al. “Biological Recovery of Platinum Complexes from Diluted Aqueous Streams by Axenic Cultures.” PLOS ONE 12.1 (2017): n. pag. Print.