Gold biorecovery from plating waste by magnetotactic bacterium, Magnetospirillum magneticum AMB-1

Masayoshi Tanaka*, Masaya Kawase, Tsuyoshi Tanaka, Tadashi Matsunaga


研究成果: Conference contribution

4 被引用数 (Scopus)


Magnetotactic bacteria are a unique species of bacteria, commonly recognized by the presence of magnetic particles within them. These intracellular, nanosized magnetic particles enable the bacteria to migrate and be manipulated by magnetic force. To date, magnetotactic bacteria have been widely researched and implemented in various biotechnology based applications. In this study, as an extension to its applications, the magnetotactic bacterium, Magnetospirillum magneticum AMB-1, was applied in the microbial recovery of gold from plating waste. M. magneticum AMB-1 successfully precipitated approximately 42% and 100% of gold from growth medium containing 10 μgold and from a mixture of plating waste/growth medium containing 0.4 μgold, respectively. These observations and results strongly suggests that an important advancement in biorecovery of rare metals and bioremediation of toxic metals was achieved in which the application of whole cell bacteria, and direct precipitation of metals from plating waste using magnetotactic bacteria was performed for the first time.

ホスト出版物のタイトルMaterials Science of Water Purification
出版ステータスPublished - 2009
イベント2009 MRS Spring Meeting - San Francisco, CA, United States
継続期間: 2009 4月 142009 4月 17


Other2009 MRS Spring Meeting
国/地域United States
CitySan Francisco, CA

ASJC Scopus subject areas

  • 材料科学一般
  • 凝縮系物理学
  • 機械工学
  • 材料力学


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