Hostname: page-component-cd9895bd7-lnqnp Total loading time: 0 Render date: 2024-12-27T02:18:26.106Z Has data issue: false hasContentIssue false
  • English
  • Français

Gold Biorecovery from Plating Waste by Magnetotactic Bacterium, Magnetospirillum magneticum AMB-1

Published online by Cambridge University Press:  31 January 2011

Masayoshi Tanaka ,
Masaya Kawase ,
Tsuyoshi Tanaka  and
Tadashi Matsunaga
Masayoshi Tanaka
Affiliation:
[email protected], Tokyo University of Agriculture and Technology, Department of Biotechnology, Tokyo, Japan
Masaya Kawase
Affiliation:
[email protected], Tokyo University of Agriculture and Technology, Department of Biotechnology, Tokyo, Japan
Tsuyoshi Tanaka
Affiliation:
[email protected], Tokyo University of Agriculture and Technology, Department of Biotechnology, Tokyo, Japan
Tadashi Matsunaga
Affiliation:
[email protected], Tokyo University of Agriculture and Technology, Department of Biotechnology, Tokyo, Japan
Get access

Abstract

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 μM gold and from a mixture of plating waste/growth medium containing 0.4 μM gold, 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.

Keywords

Auadsorptionenvironmentally benign
Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 1169: Symposium Q – Materials Science of Water Purification , 2009 , 1169-Q03-12
Copyright
Copyright © Materials Research Society 2009

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

References

[1] Mata, Y. N., et al., “Gold(III) biosorption and bioreduction with the brown alga Fucus vesiculosus,” J Hazard Mater, Nov 27 2008.Google Scholar
[2] Eisler, R., “Biorecovery of gold,” Indian J Exp Biol, vol. 41, pp. 967–71, Sep 2003.Google Scholar
[3] Savvaidis, I., “Recovery of gold from thiourea solutions using microorganisms,” Biometals, vol. 11, pp. 145–51, Apr 1998.Google Scholar
[4] Deplanche, K. and Macaskie, L. E., “Biorecovery of gold by Escherichia coli and Desulfovibrio desulfuricans,” Biotechnol Bioeng, vol. 99, pp. 1055–64, Apr 1 2008.Google Scholar
[5] Toner, B., et al., “Zinc sorption by a bacterial biofilm,” Environ Sci Technol, vol. 39, pp. 8288–94, Nov 1 2005.Google Scholar
[6] Tanaka, M., et al., “Development of a cell surface display system in a magnetotactic bacterium, “Magnetospirillum magneticum” AMB-1,” Appl Environ Microbiol, vol. 74, pp. 3342-8, Jun 2008.Google Scholar
[7] Yang, C., et al., “Effects of growth medium composition, iron sources and atmospheric oxygen concentrations on production of luciferase-bacterial magnetic particle complex by a recombinant Magnetospirillum magneticum AMB-1,” Enzyme Microb Technol, vol. 29, pp. 13–19, Jul 5 2001.Google Scholar
[8] Nies, D. H., “Microbial heavy-metal resistance,” Appl Microbiol Biotechnol, vol. 51, pp. 730–50, Jun 1999.Google Scholar