Dynamic light scattering study on the calf vitreous body

Toyoaki Matsuura; Yoshiaki Hara; Sinnji Maruoka; Shinsuke Kawasaki; Shigeo Sasaki; Masahiko Annaka

doi:10.1021/ma048767p

Dynamic light scattering study on the calf vitreous body

Toyoaki Matsuura, Yoshiaki Hara, Sinnji Maruoka, Shinsuke Kawasaki, Shigeo Sasaki, Masahiko Annaka

Physical Chemistry

Research output: Contribution to journal › Article › peer-review

4 Citations (Scopus)

Abstract

From the observations of the dynamics of light scattered by the calf vitreous body, intensity autocorrelation functions that revealed two diffusion coefficients, D_fast and D_slow, were obtained. We developed the theory for describing the density fluctuation of the entities in the vitreous gel system with Na-hyaluronate polymers filled in the meshes of collagen fiber network. The dynamics of collagen and Na-hyaluronate explains two relaxation modes of the fluctuation. The diffusion coefficient of collagen obtained from D_fast and D_slow is very close to that in aqueous solution, which suggests the vitreous body is in the swollen state. The diffusion coefficients were found to be dependent on the position (surface or central part) of the vitreous body from which the scattered light sampled. The inhomogeneous distribution of Na-hyaluronate and collagen and the shell structure of the vitreous body were suggested.

Original language	English
Pages (from-to)	7784-7790
Number of pages	7
Journal	Macromolecules
Volume	37
Issue number	20
DOIs	https://doi.org/10.1021/ma048767p
Publication status	Published - Oct 5 2004

All Science Journal Classification (ASJC) codes

Organic Chemistry
Polymers and Plastics
Inorganic Chemistry
Materials Chemistry

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abstract = "From the observations of the dynamics of light scattered by the calf vitreous body, 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 Na-hyaluronate polymers filled in the meshes of collagen fiber network. The dynamics of collagen and Na-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. The diffusion coefficients were found to be dependent on the position (surface or central part) of the vitreous body from which the scattered light sampled. The inhomogeneous distribution of Na-hyaluronate and collagen and the shell structure of the vitreous body were suggested.",

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T1 - Dynamic light scattering study on the calf vitreous body

AU - Matsuura, Toyoaki

AU - Hara, Yoshiaki

AU - Maruoka, Sinnji

AU - Kawasaki, Shinsuke

AU - Sasaki, Shigeo

AU - Annaka, Masahiko

PY - 2004/10/5

Y1 - 2004/10/5

N2 - From the observations of the dynamics of light scattered by the calf vitreous body, 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 Na-hyaluronate polymers filled in the meshes of collagen fiber network. The dynamics of collagen and Na-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. The diffusion coefficients were found to be dependent on the position (surface or central part) of the vitreous body from which the scattered light sampled. The inhomogeneous distribution of Na-hyaluronate and collagen and the shell structure of the vitreous body were suggested.

AB - From the observations of the dynamics of light scattered by the calf vitreous body, 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 Na-hyaluronate polymers filled in the meshes of collagen fiber network. The dynamics of collagen and Na-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. The diffusion coefficients were found to be dependent on the position (surface or central part) of the vitreous body from which the scattered light sampled. The inhomogeneous distribution of Na-hyaluronate and collagen and the shell structure of the vitreous body were suggested.

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Dynamic light scattering study on the calf vitreous body

Abstract

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