✦ LIBER ✦

Preparation and Structure of Porous Silk Sericin Materials

✍ Scribed by Wei Tao; Mingzhong Li; Ruijuan Xie

Publisher: John Wiley and Sons
Year: 2005
Tongue: English
Weight: 367 KB
Volume: 290
Category: Article
ISSN: 1438-7492
DOI: 10.1002/mame.200400306

No coin nor oath required. For personal study only.

✦ Synopsis

Abstract

Summary: Porous materials of Bombyx mori silk sericin were prepared by freeze‐drying. The effects of concentration of the sericin solution and that of freezing temperature on the structure and properties of materials were investigated. The results indicated that porous sericin materials, with average pore radius between 60 and 90 μm and porosity between 75 and 85%, could be prepared by freeze‐drying. Thicker solution and lower freezing temperature resulted in smaller pore radius and porosity and moreover, bigger pore density. The condensed structure of interior sericin was mainly amorphous, and contained some crystal structure. Compared to the non‐crosslinked porous sericin materials, the content of the β‐sheet structure of the sericin materials, cross‐linked by poly(ethylene glycol) diglycidyl ether, increased to some extent.

Cross section SEM photograph of the porous sericin material.

magnified imageCross section SEM photograph of the porous sericin material.

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