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Ito R, Kuroda K, Hashimoto H, et al. Recovery of platinum(0) through the reduction of platinum ions by hydrogenase-displaying yeast. AMB Express. 2016;6(1):88doi: 10.1186/s13568-016-0262-4.
Ito, R., Kuroda, K., Hashimoto, H., & Ueda, M. (2016). Recovery of platinum(0) through the reduction of platinum ions by hydrogenase-displaying yeast. AMB Express, 6(1), 88. https://doi.org/10.1186/s13568-016-0262-4
Ito, Rio, et al. "Recovery of platinum(0) through the reduction of platinum ions by hydrogenase-displaying yeast." AMB Express vol. 6,1 (2016): 88. doi: https://doi.org/10.1186/s13568-016-0262-4
Ito R, Kuroda K, Hashimoto H, Ueda M. Recovery of platinum(0) through the reduction of platinum ions by hydrogenase-displaying yeast. AMB Express. 2016 Dec;6(1):88. doi: 10.1186/s13568-016-0262-4. Epub 2016 Oct 04. PMID: 27704470; PMCID: PMC5050174.
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AMB Express. 2016 Dec;6(1):88. doi: 10.1186/s13568-016-0262-4. Epub 2016 Oct 04.

Recovery of platinum(0) through the reduction of platinum ions by hydrogenase-displaying yeast.

AMB Express

Rio Ito, Kouichi Kuroda, Haruka Hashimoto, Mitsuyoshi Ueda

Affiliations

  1. Division of Applied Life Sciences, Graduate School of Agriculture, Kyoto University, Sakyo-ku, Kyoto, 606-8502, Japan.
  2. Division of Applied Life Sciences, Graduate School of Agriculture, Kyoto University, Sakyo-ku, Kyoto, 606-8502, Japan. [email protected].

PMID: 27704470 PMCID: PMC5050174 DOI: 10.1186/s13568-016-0262-4

Abstract

Biological technologies for recycling rare metals, which are essential for high-tech products, have attracted much attention because they could prove to be more environmentally friendly and energy-saving than other methods. We have developed biological recycling technologies by cell surface engineering for the selective recovery of toxic heavy metal ions and rare metal ions from aqueous wastes. In this study, we aimed to construct a unique biological technique to recover rare metals 'in solid' form by reducing rare metal ions, leading to a practical next-generation recovery system. Sulfate-reducing bacteria (SRB) can reduce Pt(II) to Pt(0), and hydrogenases of SRB contribute to the reduction. Therefore, we constructed yeasts displaying their hydrogenases on the 'cell membrane', and reduction experiments were performed under anaerobic conditions without any electron donors. As a result, hydrogenase-displaying yeasts produced black precipitates in PtCl

Keywords: Cell membrane display; Hydrogenase; Metal recovery; Metal reduction; Platinum; Saccharomyces cerevisiae

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