碳酸钙矿物的生物矿化研究及生物启发下碳酸钙的可控晶化、组装及应用

项目名称： 碳酸钙矿物的生物矿化研究及生物启发下碳酸钙的可控晶化、组装及应用

项目编号： No.51272298

项目类型： 面上项目

立项/批准年度： 2013

项目学科： 一般工业技术

项目作者： 马玉荣

作者单位： 北京大学

项目金额： 80万元

中文摘要： 在青年基金的支持下，申请人利用生物矿化原理实现了高Mg含量方解石（Crystal Growth Des. 2011) 及一维方解石单晶的仿生矿化合成，利用显微红外光谱对生物体内的及人工合成的高Mg方解石进行了系统研究。作为生物碳酸钙矿化的探索性研究，研究了海蝴蝶超薄矿化外壳的特殊微观结构与其机械性能之间的关系（Angew. Chem. Int. Ed., 2011）。以通讯作者身份发表研究论文5篇，总起来青年科学基金项目的研究工作顺利完成。本人申请青年基金-面上顺延项目，以拓展并深化原青年基金项目的研究内容。一方面研究具有优异机械性能的碳酸钙生物矿物即高镁方解石及文石的结构特点、矿化机理、结构与性能的关系，探讨生物矿物形成多级有序结构的矿化机理；另一方面，受生物矿化机理的启发，在实验室内实现碳酸钙成核及生长的有效调控及组装，实现片状文石的层层排列和一维方解石的有序组装，并应用到实际生产中。

中文关键词： 生物矿化；碳酸钙；多级有序结构；可控晶化；纳米结构

英文摘要： Under the funding support of NSFC, the applicant realized the synthesis of high Mg calcite (Crystal Growth Des. 2011) and one dimensional calcite single crystals in large yield via bio-inspired methods under mild conditions. We characterized systematically synthetic and biogenic Mg-containing calcium carbonate samples (especially sea urchin teeth) in detail by using two FTIR microspectroscopy instruments and compare these samples with KBr pellet FTIR measurements (Phys. Chem. Chem. Phys. 2012). As an exploratory study, the relationship of the structure and the mechanical properties of calcium carbonate mineral shells of sea butterfly were studies in details (Angew. Chem. Int. Ed., 2011). All the novel characters of the ultrathin shells of sea butterfly, such as the helical nanofibers, the interlocking properties, and the crystallographic orientations, may strengthen the ultrathin armor in pteropods. The present funding support for young investigator has been proceeded successfully and quite a lot important results were obtained. As a corresponding author, the applicant has published five papers on important international journals in less than 3 years. To have a thorough, continuous and broadening study based on the present youth program funding support, the applicant is applying a youth- continuous general progr

英文关键词： biomineralization；calcium carbonate；hierarchical ordered structures；controlled crystallization；nanostructures