Spontaneous Formation of Gold Nanoparticles with Octa(3-aminopropyl) Polyhedral Oligomeric Silsesquioxane

• Hiroaki Imoto

• Katsuya Ishida

• Ai Sasaki

抄録

Mixture of octa(3-aminopropyl) polyhedral oligomeric silsesquioxane (POSS-NH2) and tetrachloroauric(III) acid under basic condition spontaneously produced gold nanoparticles (AuNPs). The amino groups reduced Au(III) cation to Au(0) and interacted with the surface of AuNPs; POSS-NH2 worked as a reductant and a stabilizer at once. Sodium hydroxide partially hydrolyzed Si–O bonds of polyhedoral oligomeric silsesquioxane (POSS) to generate SiO− species, which stabilized AuNPs via electrostatic interparticle repulsion to avoid aggregation. Addition of hydrochloric acid neutralized the amino groups of POSS-NH2, and generated NH3+ interacted with SiO− to form aggregates. That is, pH-responsive AuNPs were prepared through the facile method.

収録刊行物

• Bulletin of the Chemical Society of Japan

  Bulletin of the Chemical Society of Japan 88 (5), 653-656, 2015-05

  Tokyo : Chemical Society of Japan

キーワード

• General Chemistry

詳細情報

• CRID: 1522825129814860160
• NII論文ID: 130005069503
• NII書誌ID: AA00580132
• ISSN: 00092673
• ISSN: 13480634
• DOI: 10.1246/bcsj.20150009
• NDL書誌ID: 026383286
• Web Site: http://id.ndl.go.jp/bib/026383286
• Web Site: https://ndlsearch.ndl.go.jp/books/R000000004-I026383286
• Web Site: https://academic.oup.com/bcsj/article-pdf/88/5/653/56277885/bcsj.20150009.pdf
• 本文言語コード: en
• NDL 雑誌分類:
  • ZP1(科学技術--化学・化学工業)
• データソース種別:
  • NDL
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  • CiNii Articles
  • KAKEN