A novel growth process of calcium carbonate crystals in silk fibroin hydrogel system

被引：35
作者：
Ma, Yufei [1 ]
Feng, Qingling [2 ]
Bourrat, Xavier [3 ]
机构：
[1] Tsinghua Univ, State Key Lab New Ceram & Fine Proc, Dept Mat Sci & Engn, Beijing 100084, Peoples R China
[2] Tsinghua Univ, Adv Mat Lab, Dept Mat Sci & Engn, Beijing 100084, Peoples R China
[3] CNRS, ISTO, F-45071 Orleans 2, France
来源：
MATERIALS SCIENCE & ENGINEERING C-MATERIALS FOR BIOLOGICAL APPLICATIONS | 2013年 / 33卷 / 04期
基金：
中国国家自然科学基金;
关键词：
Biomimetic; Crystal growth; Polymers; Silk fibroin hydrogel; Biomineralization; NACREOUS LAYER; CRYSTALLIZATION; CHITOSAN; MATRIX; FILMS; ARAGONITE;
D O I：
10.1016/j.msec.2013.02.006
中图分类号：
TB3 [工程材料学]; R318.08 [生物材料学];
学科分类号：
0805 ; 080501 ; 080502 ;
摘要：
We report an interesting finding of calcium carbonate (CaCO3) crystal growth in the silk fibroin (SF) hydrogel with different concentrations by a simple ion diffusion method. The experimental results indicate that the CaCO3 crystals obtained from silk fibroin gels with low and high concentrations are all calcites with unusual morphologies. Time-dependent growth study was carried out to investigate the crystallization process. It is believed that silk fibroin hydrogel plays an important role in the process of crystallization. The possible formation mechanism of CaCO3 crystals is proposed. This study provides a better explanation of the influence of silk fibroin concentration and its structure on CaCO3 crystals growth. (C) 2013 Elsevier B.V. All rights reserved.
引用
收藏
页码：2413 / 2420
页数：8
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