AMP-Cu^(2+)-脱氧胆酸凝胶体系的时空图案及其结构的研究  

Study on the Structure of Periodic and Chaotic Patterns of AMP-DC-Cu-Gel Systems

作　　者：尹文萱[1] 刘玉峰[1] 赵莹[2] 高庆宇[3] 吴瑾光[1] 

机构地区：[1]北京大学化学与分子工程学院,北京100871 [2]中国科学院化学研究所,北京100080 [3]中国矿业大学化工学院,江苏徐州221008

出　　处：《光谱学与光谱分析》2005年第6期930-933,共4页Spectroscopy and Spectral Analysis

基　　金：国家重点基础研究发展规划(200CCA01900);国家自然科学基金(30371604;50203001);教育部博士点基金资助项

摘　　要：核苷酸是一类重要的生命物质,在体外模拟胆结石形成的实验中,选取了腺嘌呤核苷酸(AMP)为研究对象,研究了它对Cu2 + 脱氧胆酸体系形成时空图案的影响,用FTIR表征各种形态沉淀物的结构。结果表明:在AMP存在下的脱氧胆酸 铜离子 凝胶体系中,可形成周期沉淀及分形结构共存的复杂时空图案,红外光谱结果显示其结构中除了脱氧胆酸根(DC- )与铜离子配位外,AMP也参与了配位,可能形成DC- 1 Cu AMP的混配型非化学计量的化合物;AMP 脱氧胆酸 葡萄糖 铜凝胶体系的周期沉淀及分形结构中,AMP、葡萄糖、DC与Cu2 + 多核配位作用形成和组成结构更复杂的沉淀。This is an in vitro model to mimic the conditions present during gallstone formation. Adenosine mono-phosphate (AMP), an important bio-molecule, was chosen. Its effect on the formation of periodic/ chaotic patterns in the deoxycholate-CuCl2 -gel and deoxycholate- CuCl2 -glucose-gel systems were studied. FTIR spectroscopy was used to identify the structure of the precipitates. The results indicate that the patterns formed in the systems with AMP are different. And FTIR spectra show that AMP. may also be involved in the coordination sphere of Cu2+ ion. The results are more complicated in the deoxycholate-CuCl2 system containing glucose, suggesting that the nonlinear scientific concept should be considered in understanding gallstone formation.

关 键 词：胆结石 AMP 周期沉淀 分形 FTIR 

分 类 号：O614.3[理学—无机化学] O657.3[理学—化学]