Biomimetic mineralization of calcium carbonate under synergistic regulation of Sr2+and egg-white proteins

被引：1

作者：

Deng, Yuanyuan ^{[1
]}

Liu, Xun ^{[1
,2
]}

Wu, Chaoqun ^{[1
]}

Yao, Fujun ^{[1
]}

Yang, Xin ^{[1
]}

Wang, Yan ^{[1
]}

Pei, Chonghua ^{[1
]}

机构：

[1] Southwest Univ Sci & Technol, State Key Lab Environm Friendly Energy Mat, Mianyang 621010, Peoples R China

[2] 59 Qinglong Rd, Mianyang, Sichuan, Peoples R China

来源：

MATERIALS LETTERS | 2023年 / 346卷

基金：

中国国家自然科学基金;

关键词：

Egg-white proteins; Biomaterials; Calcium carbonate; Crystal structure; Sr2+;

D O I：

10.1016/j.matlet.2023.134544

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The content of Sr in nacre is stable and second only to Mg, but its ability to induce aragonite is rarely reported. Therefore, the paper studied the effects of Sr2+ concentration, reaction rate and temperature on the biological mineralization of calcium carbonate in presence of egg-white proteins. The results show that Sr2+ could induce the formation of aragonite when coexisting with egg-white proteins as Mg2+. However, the large ion radius of Sr2+ makes it difficult to enter the calcite lattice, so its induction efficiency is much lower than Mg2+. Reducing the mineralization rate and increasing the mineralization temperature are beneficial to the formation of aragonite.

引用

页数：4