单分子膜诱导生物矿物晶体生长中的晶格匹配和电荷匹配

有机基质与无机晶体的晶格几何匹配和静电相互作用是导致生物体内矿物有序生长并具有特殊理化性质的重要因素,但有机基质的作用机理至今没有完全弄清.作为模拟生物矿化的重要模板之一,Langmuir单分子膜具有独特的优势.本文综述了单分子膜诱导下生物矿物碳酸钙(文石、方解石和球霰石)、羟磷灰石、硫酸钡和纤铁矿等生长过程中的晶格匹配和电荷匹配,讨论了单分子膜亲水头基、膜的电荷性质、膜聚集态等因素对膜控晶体生长过程中晶格匹配和电荷匹配的影响,指出了该领域所面临的问题和将来的发展方向.

Research Progress in Lattice Matching and Electrostatic Compatibility in Growth of Biominerals Induced by Monolayers

Lattice geometrical matching and electrostatic compatibility are the most important factors to lead oriented nucleation and then to give special physical and chemical properties to biominerals in organisms. However, it is not fully understood how the organic matrices to control the nucleation and growth process of inorganic crystals. As an important template in mimicking biomineralization, Langmuir monolayer has special advantages. In this paper, the research progress in lattice geometrical matching and electrostatic interactions of biominerals such as calcium carbonate, calcium phosphates, barite and lepidocrocite, etc, are reviewed. The effects of hydrophilic headgroups, charges and the aggregated states of monolayers on lattice geometrical matching and electrostatic compatibility at the inorganic/organic interfaces are discussed. The problems faced and the developing direction are also indicated.