Journal
JOURNAL OF NANOSCIENCE AND NANOTECHNOLOGY
Volume 15, Issue 8, Pages 6129-6132Publisher
AMER SCIENTIFIC PUBLISHERS
DOI: 10.1166/jnn.2015.10458
Keywords
Nanoparticle; Magnetite; Biosynthesis; Zinc-Substituted Magnetite; Fermentation
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Funding
- NRF of Korea [NRF-2011-0010163]
- Korea Ministry of Environment [RE201402059]
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The objective of this study is to examine microbial synthesis of magnetite and Zn-substituted magnetite nanoparticles by iron-reducing bacteria (Clostridium sp.) enriched from intertidal flat sediments. The magnetite nanoparticles were synthesized by the bacteria under anaerobic conditions at room temperature using akaganeite (beta-FeOOH) or Zn-substituted akaganeite (beta-ZnxFe1-xOOH) as a magnetite precursor during glucose fermentation. This research indicates that fermentation processes can establish the microbial synthesis of magnetite and Zn-substituted magnetite when conditions are at room temperature, ambient pressure, and pH values near neutral to slightly basic (pH < 8).
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