Shen Y, Yang Z, Xie A, Wu J
College of Chemistry and Engineering, Anhui University, 230039 Anhui.
Guang Pu Xue Yu Guang Pu Fen Xi. 2000 Dec;20(6):781-4.
Fourier transform infrared spectroscopy was used to study the composition and microstructure of soluble complexes produced by different initial mole ratios of bovine serum albumin(BSA) and calcium hydroxyapatite [Ca10(OH)2(PO4)6] and calcium carbonate (CaCO3) in aqueous solution. The band shifts and intensity variations suggested that calcium complexes with multiple ligands such as BSA, apatite, carbonate as well as the hydrogen bond network formed in titled system. The interactions increased the solubility of Ca10 (OH)2(PO4)6 and CaCO3 and the composition of soluble complexes is nonstoichiometric. The results provided an ideal model to investigated biomineralization process.
采用傅里叶变换红外光谱法研究了牛血清白蛋白（BSA）与羟基磷灰石[Ca10(OH)2(PO4)6]以及碳酸钙（CaCO3）在水溶液中不同初始摩尔比形成的可溶性复合物的组成和微观结构。谱带位移和强度变化表明，钙与多种配体如BSA、磷灰石、碳酸盐形成复合物，且在该体系中形成了氢键网络。这些相互作用提高了Ca10(OH)2(PO4)6和CaCO3的溶解度，且可溶性复合物的组成是非化学计量的。该结果为研究生物矿化过程提供了一个理想模型。
