論文

査読有り
2002年9月

Structure determination of helical fibers by numerical simulation for small-angle neutron scattering

LANGMUIR
  • H Fukuda
  • ,
  • A Goto
  • ,
  • T Imae

担当区分
筆頭著者
18
19
開始ページ
7107
終了ページ
7114
記述言語
英語
掲載種別
研究論文(学術雑誌)
DOI
10.1021/la025528r
出版者・発行元
AMER CHEMICAL SOC

Theoretical equations for the small-angle scattering of double-strand helixes with fanlike and round cross sections, as well as a cylinder, were applied to determine the geometry of the self-assembled helical structure formed by N-octadecanoyl-L-aspartic acid (C(18)Asp). However, those already-known equations were not sufficient to reproduce the experimental small-angle neutron scattering (SANS) curves. Then, a theoretical equation to the small-angle scattering for a helical fiber was derived. The equation with 5-fold integration covers the available equations for fibers with finite cross sections, but it is generalized so as to suit the multistrand helical structures with arbitrary cross-sectional shapes. Computer simulations based on this theory showed that the best fit to the observed SANS data of C(18)Asp fiber is obtained for a model of a single-strand helix with rectangular cross section, that is, the twisted ribbon.

Web of Science ® 被引用回数 : 6

リンク情報
DOI
https://doi.org/10.1021/la025528r
Web of Science
https://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcAuth=JSTA_CEL&SrcApp=J_Gate_JST&DestLinkType=FullRecord&KeyUT=WOS:000178020000004&DestApp=WOS_CPL