Preparation and Properties of Insoluble Fibroin Films by Novel Method

Abstract

Abstract: A novel method for preparing the insoluble fibroin films was developed. After the fibroin solution was concentrated to about 16% with mild stirring at 45-50℃, the insoluble fibroin films could directly obtained by adjusting drying temperature and drying rate. The FTIR-ATR, XRD were used to study the structure change of fibroin films. The physical and mechanical properties were investigated to discover the feasibility of using these films as biomedical materials. When the fibroin obtained at above 60℃, abundant β-sheet crystal existed in fibroin films. The tensile strength and breaking elongation of films dried at 70℃ were 29.8 MPa and 59.6%, which distinctly superior to the fibroin films treated with methanol. Considering the excellent mechanical properties and avoidance of methanol treatment, the fibroin films prepared with this method were more useful and safer.

Key words: Fiboin films, Mechanical property, Insoluble

CLC Number:

O631

TrendMD:

Lv Qiang, CAO Chuan-Bao, ZHANG Ying, MA Xi-Lan, ZHU He-Sun . Preparation and Properties of Insoluble Fibroin Films by Novel Method[J]. Chem. J. Chinese Universities, 2004, 25(9): 1752.

References

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