Title:
FINE NOBLE METAL PARTICLES, METHOD FOR COLLECTING FINE NOBLE METAL PARTICLES, AND METHOD FOR PRODUCING FINE NOBLE METAL PARTICLE DISPERSION USING COLLECTED FINE NOBLE METAL PARTICLES
Document Type and Number:
WIPO Patent Application WO/2011/155134
Kind Code:
A1
Abstract:
Disclosed are fine noble metal particles with a protein adsorbed thereon, which contain fine noble metal particles and a protein that is adsorbed on the surfaces of the fine noble metal particles. The fine noble metal particles are characterized in that the isoelectric point of the protein is within the pH range of 4.0-7.5, and the amount of adsorbed protein is within the range of 3-55.1% by weight relative to the total weight of the fine noble metal particles and the protein. The fine noble metal particles with a protein adsorbed thereon have excellent re-dispersibility. Consequently, even if fine noble metal particles with a protein adsorbed thereon are collected from a fine noble metal particle dispersion by adjusting the pH of the dispersion to the isoelectric point of the protein without adding a degrading enzyme of the protein so that the fine noble metal particles agglomerate, the average particle diameter of the collected fine noble metal particles with a protein adsorbed thereon is not significantly increased when the fine noble metal particles with a protein adsorbed thereon are re-dispersed in another dispersion medium.
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Inventors:
OGAWA RYOHEI (JP)
MIYASHITA KIYOSHI (JP)
KEZUKA MASAMICHI (JP)
MIYASHITA KIYOSHI (JP)
KEZUKA MASAMICHI (JP)
Application Number:
PCT/JP2011/002793
Publication Date:
December 15, 2011
Filing Date:
May 19, 2011
Export Citation:
Assignee:
NIPPON SHEET GLASS CO LTD (JP)
OGAWA RYOHEI (JP)
MIYASHITA KIYOSHI (JP)
KEZUKA MASAMICHI (JP)
OGAWA RYOHEI (JP)
MIYASHITA KIYOSHI (JP)
KEZUKA MASAMICHI (JP)
International Classes:
B01F23/00; B22F1/0545; B22F1/102; B22F9/24; H01B1/22
Foreign References:
| JP2007039765A | 2007-02-15 | |||
| JP2010513718A | 2010-04-30 | |||
| JP2007039765A | 2007-02-15 |
Other References:
See also references of EP 2581153A4
Attorney, Agent or Firm:
KAMADA, KOICHI (JP)
Koichi Kamata (JP)
Koichi Kamata (JP)
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Claims:
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