期刊
CHEMISTRY-A EUROPEAN JOURNAL
卷 18, 期 7, 页码 1945-1952出版社
WILEY-BLACKWELL
DOI: 10.1002/chem.201102877
关键词
biomineralization; crystallization; metals; microcapsules; proteins
资金
- National University of Singapore, Singapore
- King Abdullah University of Science and Technology, Saudi Arabia
Calcium carbonate (CaCO3) is one of the most abundant and important biominerals in nature. Due to its biocompatibility, biodegradability and nontoxicity, CaCO3 has been investigated extensively in recent years for various fundamental properties and technological applications. Inspired by basic wall structures of cells, we report a protein-assisted approach to synthesize CaCO3 into a double-shelled structural configuration. Due to varying reactivities of outer and inner shells, the CaCO3 microcapsules exhibit different sorption capacities and various resultant structures toward different kinds of heavy metal ions, analogical to biologically controlled mineralization (BCM) processes. Surprisingly, three mineralization modes resembling those found in BCM were found with these bacterium-like CaCO3 cells. Our investigation of the cytotoxicity (MTT assay protocol) also indicates that the CaCO3 microcapsules have almost no cytotoxicity against HepG2 cells, and they might be useful for future application of detoxifying heavy metal ions after further study.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据