Formation of nanoscale elemental silver particles via enzymatic reduction by Geobacter sulfurreducens

Law, Nicholas and Ansari, Saadia and Livens, Francis R. and Renshaw, Joanna C. and Lloyd, Jonathan R. (2008) Formation of nanoscale elemental silver particles via enzymatic reduction by Geobacter sulfurreducens. Applied and Environmental Microbiology, 74 (22). pp. 7090-7093. ISSN 0099-2240 (https://doi.org/10.1128/AEM.01069-08)

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Abstract

Geobacter sulfurreducens reduced Ag(I) (as insoluble AgCl or Ag+ ions), via a mechanism involving c-type cytochromes, precipitating extracellular nanoscale Ag(0). These results extend the range of metals known to be reduced by Geobacter species and offer a method for recovering silver from contaminated water as potentially useful silver nanoparticles.

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