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Studies on the formation mechanism and the structure of the anisotropic collagen gel prepared by dialysis-induced anisotropic gelation.

Abstract：

:We have found that dialysis of 5 mg/mL collagen solution into the phosphate solution with a pH of 7.1 and an ionic strength of 151 mM [corrected] at 25 °C results in a collagen gel with a birefringence and tubular pores aligned parallel to the growth direction of the gel. The time course of averaged diameter of tubular pores during the anisotropic gelation was expressed by a power law with an exponent of 1/3, suggesting that the formation of tubular pores is attributed to a spinodal decomposition-like phase separation. Small angle light scattering patterns and high resolution confocal laser scanning microscope images of the anisotropic collagen gel suggested that the collagen fibrils are aligned perpendicular to the growth direction of the gel. The positional dependence of the order parameter of the collagen fibrils showed that the anisotropic collagen gel has an orientation gradient.

journal_name

Biomacromolecules

journal_title

Biomacromolecules

authors

Furusawa K,Sato S,Masumoto J,Hanazaki Y,Maki Y,Dobashi T,Yamamoto T,Fukui A,Sasaki N

doi

10.1021/bm200869p

subject

Has Abstract

pub_date

2012-01-09 00:00:00

pages

29-39

issue

1

eissn

1525-7797

issn

1526-4602

journal_volume

13

pub_type

杂志文章

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