Dynamic light scattering study of pig vitreous body

Toyoaki Matsuura, Naokazu Idota, Yoshiaki Hara, Annaka Masahiko

研究成果: 書籍/レポート タイプへの寄稿

2 被引用数 (Scopus)

抄録

The phase behaviors and dynamical properties of pig vitreous body were studied by macroscopic observation of swelling behavior and dynamic light scattering under various conditions. From the observations of the dynamics of light scattered by the pig vitreous body under physiological condition, intensity autocorrelation functions that revealed two diffusion coefficients, Dfast and Dslow were obtained. We developed the theory for describing the density fluctuation of the entities in the vitreous gel system with sodium hyaluronate filled in the meshes of collagen fiber network. The dynamics of collagen and sodium hyaluronate explains two relaxation modes of the fluctuation. The diffusion coefficient of collagen obtained from Dfast and Dslow is very close to that in aqueous solution, which suggests the vitreous body is in the swollen state. Divergent behavior in the measured total scattered light intensities and diffusion coefficients upon varying the concentration of salt (NaCl and CaCl2) was observed. Namely, a slowing down of the dynamic modes accompanied by increased "static" scattered intensities was observed. This is indicative of the occurrence of a phase transition upon salt concentration.

本文言語英語
ホスト出版物のタイトルGels
ホスト出版物のサブタイトルStructures, Properties, and Functions
編集者Masayuki Tokita, Katsuyoshi
ページ195-204
ページ数10
DOI
出版ステータス出版済み - 12月 1 2009

出版物シリーズ

名前Progress in Colloid and Polymer Science
136
ISSN(印刷版)0340-255X

!!!All Science Journal Classification (ASJC) codes

  • 物理化学および理論化学
  • 有機化学
  • ポリマーおよびプラスチック
  • コロイド化学および表面化学
  • 材料化学

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