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Title:
METAL RECOVERY METHOD, METAL RECOVERY CARRIER, AND METAL RECOVERY BIOREACTOR USING SAME
Document Type and Number:
WIPO Patent Application WO/2018/203539
Kind Code:
A1
Abstract:
[Problem] To provide a metal recovery method capable of being used in a wide range of conditions without limitation upon range of applicability. [Solution] A metal recovery method in which a metal recovery carrier and a medium containing metal ions are brought into contact, the metal ions in the medium are bonded to the surface of an outer layer of the metal recovery carrier, and the metal recovery carrier is separated from the medium. The outer layer of the metal recovery carrier is a biologically inactive material constituted by double phospholipid films. Porins derived from gram-negative bacteria pass through the double phospholipid films. A metal ion bonding peptide motif is introduced into a region of the amino acid sequence of the porins that will not negatively affect porin functioning in the gram-negative bacteria. The metal ion bonding peptide motif is presented on the surfaces of the double phospholipid films.

Inventors:
YAMAMOTO KANEYOSHI (JP)
MIYAKE YUKARI (JP)
KOJIMA FUMIKA (JP)
YOSHIDA MIYU (JP)
OSAWA MIKI (JP)
KITAGAWA SUMIKO (JP)
Application Number:
PCT/JP2018/017313
Publication Date:
November 08, 2018
Filing Date:
April 27, 2018
Export Citation:
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Assignee:
UNIV HOSEI (JP)
TDK CORP (JP)
International Classes:
C12P3/00; B01J20/22; C12M1/40; C12N1/21; C12N15/30; C12N15/62
Foreign References:
US5824512A1998-10-20
JP2014012272A2014-01-23
JP2000084538A2000-03-28
Other References:
MEJARE, M. ET AL.: "Metal-binding proteins and peptides in bioremediation and phytoremediation of heavy metals .", TRENDS IN BIOTECHNOLOGY, vol. 19, no. 2, 2001, pages 67 - 73, XP001032950
CRUZ, N. ET AL.: "Engineering the Escherichia coli outer membrane protein OmpC for metal bioadsorption", BIOTECHNOLOGY LETTERS, vol. 22, 2000, pages 623 - 629, XP055561673
MEJARE, M. ET AL.: "Selection of cadmium specific hexapeptides and their expression as OmpA fusion proteins in Escherichia coli", PROTEIN ENGINEERING, vol. 11, no. 6, 1998, pages 489 - 494, XP002967972
CHANGELA, A. ET AL.: "Molecular Basis of Metal- Ion Selectivity and Zeptomolar Sensitivity by CueR", SCIENCE, vol. 301, 2003, pages 1383 - 1387, XP002431143
NITZ, M. ET AL.: "A Powerful Combinatorial Screen to Identify High-Affinity Terbium(III)-Binding Peptides", CHEMBIOCHEM, vol. 4, 2003, pages 272 - 276, XP003000207
Attorney, Agent or Firm:
IIDA & PARTNERS et al. (JP)
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