Electrochemically active biofilm-mediated synthesis of silver nanoparticles in water

Shafeer Kalathil, Jintae Lee, Moo Hwan Cho*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

63 Citations (Scopus)

Abstract

Silver nanoparticles 1–7 nm in size were synthesized within 2 h in water by challenging an electrochemically active biofilm (EAB) with a solution containing AgNO3 as precursor and sodium acetate as an electron donor. The electrochemically active bacteria present on the anaerobic biofilm act as a catalyst to oxidise the sodium acetate by producing electrons for the reduction of Ag+ ions. The high monodispersity, rapidity, and extracellular nature of this synthesis, together with the production of smaller nanoparticles that are easily separated, make this protocol highly significant in the area of nanoparticle synthesis.

Original languageEnglish
Pages (from-to)1482-1485
Number of pages4
JournalGreen Chemistry
Volume13
Issue number6
DOIs
Publication statusPublished - 7 Jun 2011
Externally publishedYes

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