Abstract
An environmentally friendly method using the metal ion-reducing bacterium Shewanella algae was proposed to deposit platinum nanoparticles. Resting cells of S. algae were able to reduce aqueous PtCl(6)(2-) ions into elemental platinum at room temperature and neutral pH within 60min when lactate was provided as the electron donor. Biogenic platinum nanoparticles of about 5nm were located in the periplasm--a preferable, cell surface location for easy recovery of biogenic nanoparticles.
MeSH terms
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Biodegradation, Environmental
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Electroplating / methods*
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Metal Nanoparticles / chemistry
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Oxidation-Reduction
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Periplasm / chemistry
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Platinum Compounds / chemistry
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Platinum Compounds / isolation & purification
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Platinum Compounds / metabolism*
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Shewanella / metabolism*
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Shewanella / ultrastructure
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Water Pollutants, Chemical / chemistry
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Water Pollutants, Chemical / isolation & purification
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Water Pollutants, Chemical / metabolism
Substances
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Platinum Compounds
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Water Pollutants, Chemical
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platinum chloride