Biomimetic Synthesis of Nacre-like Regenerated Silk  Fibroin/Aragonite Composite

Acta Chimica Sinica ›› 2009, Vol. 67 ›› Issue (14): 1675-1679. Previous Articles Next Articles

Original Articles

类珍珠质结构的再生丝素蛋白/文石复合材料的仿生制备

蒋伏广姚晋荣陈新邵正中

(教育部聚合物分子工程重点实验室复旦大学高分子科学系和先进材料实验室上海 200433)

投稿日期:2008-10-14 修回日期:2008-12-20 发布日期:2009-07-28
通讯作者: 邵正中

Biomimetic Synthesis of Nacre-like Regenerated Silk Fibroin/Aragonite Composite

Jiang, Fuguang Yao, Jinrong Chen, Xin Shao, Zhengzhong*

(Key Laboratory of Molecular Engineering of Polymers of Ministry of Education, Department of Macromolecular Science and Laboratory of Advanced Materials, Fudan University, Shanghai 200433)

Received:2008-10-14 Revised:2008-12-20 Published:2009-07-28
Contact: Shao, Zhengzhong

Abstract

The effects of the concentration of polyacrylic acid (MW＝2000, PAA-2k) and mole ratio of Ca2＋/ Mg2＋ on the crystallization of CaCO3 on the surface of regenerated silk fibroin (RSF) membrane were investigated in detail. The continuous film of calcite was formed on the surface of RSF membrane under the regulation of PAA-2k, while the aragonite film could be obtained under the co-regulation of PAA-2k and a certain amount of Mg2＋. Then the nacre-like RSF/aragonite composite was prepared accordingly. The formation of the continuous CaCO3 film on the surface of RSF membrane was speculatively attributed to the coordination between the nucleation-induction of the absorbed PAA on the RSF surface and the inhibiting effect of PAA in solution for the crystallization of CaCO3.

Key words: polyacrylic acid, regenerated silk fibroin, aragonite, composite

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类珍珠质结构的再生丝素蛋白/文石复合材料的仿生制备

Biomimetic Synthesis of Nacre-like Regenerated Silk Fibroin/Aragonite Composite

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