Calcium Carbonate Polymorphs Growing in the Presence of Sericin: A New Composite Mimicking the Hierarchic Structure of Nacre

被引:11
作者
Pastero, Linda [1 ,2 ]
Aquilano, Dino [1 ]
机构
[1] Univ Turin, Dept Earth Sci, Via Valperga Caluso 35, I-10125 Turin, Italy
[2] Univ Turin, NIS, Via Quarello 15-A, I-10135 Turin, Italy
关键词
biomineralization; calcite; aragonite; sericin; nacre; CO2; composite; hierarchic structure; MINERAL SOLUBILITIES; SHELL FORMATION; MOLLUSK SHELLS; ORGANIC MATRIX; NATURAL-WATERS; CRYSTALS; ARAGONITE; PHASE; BIOMINERALIZATION; ORIENTATION;
D O I
10.3390/cryst8070263
中图分类号
O7 [晶体学];
学科分类号
0702 ; 070205 ; 0703 ; 080501 ;
摘要
Bioinspired self-assembled composite materials are appealing both for their industrial applications and importance in natural sciences, and represent a stimulating topic in the area of materials science, biology, and medicine. The function of the organic matrix has been studied from the biological, chemical, crystallographic, and engineering point of view. Little attention has been paid to the effect of one of the two main components of the organic matrix, the sericin fraction, on the growth morphology of calcium carbonate polymorphs. In the present work, we address this issue experimentally, emphasizing the morphological effects of sericin on calcite and aragonite crystals, and on the formation of a sericin-aragonite-calcite self-assembled composite with a hierarchic structure comparable to that of natural nacre.
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页数:20
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