Title:
貴金属微粒子、貴金属微粒子の回収方法、および回収した貴金属微粒子を用いる貴金属微粒子分散体の製造方法
Document Type and Number:
Japanese Patent JP5663013
Kind Code:
B2
Abstract:
The present invention provides a noble metal fine particle with a protein adsorbed thereon, including a noble metal fine particle, and a protein adsorbed on a surface of the noble metal fine particle. The protein has an isoelectric point in a range of pH 4.0 to 7.5. An amount of the protein adsorbed is in a range of 3 to 55.1 wt% with respect to a total weight of the noble metal fine particle and the protein. The noble metal fine particle with a protein adsorbed thereon according to the present invention has excellent redispersibility. That is, by adjusting the pH of a noble metal fine particle dispersed liquid to the isoelectric point of the proteins and allowing the noble metal fine particles to be aggregated without adding a degrading enzyme that degrades the proteins to the noble metal fine particle dispersed liquid, it is possible to allow the noble metal fine particles with proteins adsorbed thereon withdrawn from the noble metal fine particle dispersed liquid to have an average particle diameter that is not increased significantly even after they are redispersed in another dispersion medium.
Inventors:
小川 良平
宮下 聖
毛塚 昌道
宮下 聖
毛塚 昌道
Application Number:
JP2012519225A
Publication Date:
February 04, 2015
Filing Date:
May 19, 2011
Export Citation:
Assignee:
日本板硝子株式会社
International Classes:
B01F23/00; B22F1/0545; B22F1/102; B22F9/24; C09C1/62; C09D17/00; C22B11/00; H01B1/00; H01B1/22; H01B5/00; H01B13/00
Domestic Patent References:
| JP2007039765A | 2007-02-15 | |||
| JP2010513718A | 2010-04-30 | |||
| JP2006307330A | 2006-11-09 |
Attorney, Agent or Firm:
Koichi Kamata
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