4.3 Article

Investigation Concerning the Formation Process of Gold Nanoparticles by Shewanella oneidensis MR-1

Journal

ANALYTICAL SCIENCES
Volume 33, Issue 2, Pages 129-131

Publisher

JAPAN SOC ANALYTICAL CHEMISTRY
DOI: 10.2116/analsci.33.129

Keywords

Gold nanoparticle; Shewanella oneidensis; zeta potential; optical sensing

Funding

  1. Japan Society for the Promotion of Science (JSPS) [25288069, 16H04137, 26620072, 26620123]
  2. Grants-in-Aid for Scientific Research [25288069, 26620123, 16H04137, 26620072] Funding Source: KAKEN

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Shewanella oneidensis MR-1 is a facultative anaerobic bacterium that is known to transfer electrons generated during metabolism to various metal ions and produce nanoparticles on the bacterial surface. In this study, we tracked the formation of gold nanoparticles (Au NPs) on the S. oneidensis cell surfaces and investigated the roles of membrane proteins and extracellular polysaccharides in this process by spectrometry, zeta potential analysis, and electron microscopy.

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