還元細菌 Shewanella oneidensis を用いた Au(III) イオンの還元・ナノ粒子化

書誌事項

タイトル別名
  • Synthesis of Gold Nanoparticle by the Metal Ion-reducing Bacterium Shewanella Oneidensis
  • 還元細菌Shewanella oneidensisを用いたAu(3)イオンの還元・ナノ粒子化
  • カンゲン サイキン Shewanella oneidensis オ モチイタ Au 3 イオン ノ カンゲン ナノ リュウシカ

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抄録

Room temperature bioreduction of gold ions was attained within relatively short reaction time (3-120 min) using a metal ion-reducing bacterium Shewanella oneidensis. The soluble gold ions were reduced to gold nanoparticles when formate was provided as an electron donor. The biogenic precipitates in the S. oneidensis cells were gold nanocrystals of approximately 10 nm in size and homogeneously deposited on the bacteria surface. Both the generated particle amount per unit bacterial cell and particles diameters were varied by initial formate concentration and reaction time. In this experiment, the highly dispersed gold nanoparticles could be controlled from 3.8 to 14.2 nm precipitating on the bacteria surface.

収録刊行物

  • 粉体工学会誌

    粉体工学会誌 48 (3), 160-166, 2011

    一般社団法人 粉体工学会

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