Biomediated synthesis of silver nanoparticles using Exiguobacterium mexicanum

Aparna J. Padman, Janey Henderson, Simon Hodgson, Pattanathu K. S. M. Rahman

Research output: Contribution to journalArticlepeer-review


Biomediated silver nanoparticle were synthesized using a cell free extract of a soil bacterium, Exiguobacterium mexicanum PR 10.6. The silver nanoparticles were characterised using UV-Vis spectroscopy, energy dispersive spectroscopy, Fourier transform infrared spectroscopy, and transmission electron microscopy. The nanoparticles ranged from 5 to 40 nm. Extracellular polymeric substance played a critical role in the reduction of silver ion and nanoparticle stabilisation when using the cell free extract. The synthesis using E. mexicanum is an effective eco-friendly, rapid method for silver nanoparticle synthesis within 1 h.

Original languageEnglish
Pages (from-to)2079-2084
Number of pages6
JournalBiotechnology Letters
Issue number10
Early online date26 Jun 2014
Publication statusPublished - Oct 2014


  • Biomediated synthesis
  • Cell-free extract
  • Exiguobacterium mexicanum
  • Extracellular polymeric substance
  • Nanoparticles
  • Silver nanoparticles


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