論文

査読有り
2010年10月

Radially oriented cellulose triacetate chains on gold nanoparticles

CELLULOSE
  • Yukiko Enomoto-Rogers
  • ,
  • Hiroshi Kamitakahara
  • ,
  • Arata Yoshinaga
  • ,
  • Toshiyuki Takano

17
5
開始ページ
923
終了ページ
936
記述言語
英語
掲載種別
研究論文(学術雑誌)
DOI
10.1007/s10570-010-9437-3
出版者・発行元
SPRINGER

Cellulose triacetate (CTA) derivatives having a disulfide group at the reducing-end (CTA2S, CTA13S, CTA41S), with number average degrees of polymerization (DP(n)s) of 2, 13 and 41, respectively, were prepared. The CTA-self-assembled gold nanoparticles (CTA2Au, CTA13Au, and CTA41Au) were obtained through the reduction of gold salt (HAuCl(4)) with CTASs. The diameters (d) and the interparticle distances (L) of the gold cores were analyzed by transmission electron microscopy (TEM) observations. The d values of CTA2Au, CTA13Au, and CTA41Au, were 8.7, 7.9, and 13.4 nm respectively. The L values of CTA2Au, CTA13Au, and CTA41Au, were 2.8, 6.3, and 20.9 nm, respectively, and agreed well with the molecular length (l) of CTAS chains (ls of CTA2S, CTA13S, CTA41S = 2.0, 7.5, 21.5 nm, respectively). The hydrodynamic diameters (D) of CTAAu nanoparticles in chloroform solution, measured by dynamic light scattering (DLS), were larger than the d values and increased with the increase in the molecular length of the CTA chains. The CTAS chain was found to work as an excellent stabilizer of the gold nanoparticles in both solid state and solution. The molecular length of CTA chains controlled the size and the alignment of the gold nanoparticles. As a result, the radially oriented CTA chains on the gold nanoparticles were successfully prepared.

リンク情報
DOI
https://doi.org/10.1007/s10570-010-9437-3
Web of Science
https://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcAuth=JSTA_CEL&SrcApp=J_Gate_JST&DestLinkType=FullRecord&KeyUT=WOS:000281935300006&DestApp=WOS_CPL
ID情報
  • DOI : 10.1007/s10570-010-9437-3
  • ISSN : 0969-0239
  • Web of Science ID : WOS:000281935300006

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