增长抑制剂的特异性及其在氧沙酸单水合物结晶中的合作作用
Sahar Farmanesh1, Sriram Ramamoorthy, Jihae Chung
1Department of Chemical and Biomolecular Engineering, University of Houston , Houston, Texas 77204, United States.
Journal of the American Chemical Society
|December 10, 2013
概括
控制晶体生长需要了解抑制剂如何与晶体表面的特定部位结合. 这项研究揭示了丁硫酸盐,血清白蛋白和转素如何影响氧化单水合物 (COM) 结晶.
科学领域:
- 结晶科学是结晶的科学.
- 材料科学是一种材料科学.
- 生物矿物化 生物矿物化
背景情况:
- 控制晶体生长对于定制材料特性和理解病态矿化至关重要.
- 氧化单 (COM) 结晶是研究化过程的相关模型系统.
研究的目的:
- 为了研究COM晶体表面上增长抑制剂的特定位点吸附.
- 阐明氏丁硫酸盐,血清白蛋白和转蛋白对COM晶体生长和形态学的影响.
- 探索抑制剂组合的协同作用,添加作用和对抗作用.
主要方法:
- 使用解决界面到散装尺度的技术分析抑制剂-晶体相互作用.
- 在COM表面步骤上观察抑制剂吸附,这些步骤来自螺杆位移.
- 形态修饰分析与逐层增长抑制相一致.
- 通过批量结晶,光共聚焦显微镜和原子力显微镜确认特定位点的吸附.
- 在不同度的抑制剂下对COM生长的动力学研究.
- 使用组合指数量化抑制剂组合效应的量化.
主要成果:
- 每个抑制剂 (氏丁硫酸盐,血清白蛋白,转移素) 吸附在COM表面的不同步骤上.
- 抑制剂结合导致了与古典晶体生长抑制机制相一致的形态变化.
- 通过多种分析技术证实了特定位点的吸附.
- 观察到抑制剂有效性和强度的显著差异.
- 抑制剂的组合表现出协同作用,添加作用和对抗作用.
结论:
- 生理学上相关的生物分子可以作为COM抑制剂,表明在病理结晶中的作用.
- 了解晶体表面的分子识别,为晶体修饰剂的仿生设计提供了原则.
- 这项研究为晶体工程和控制异型增长率提供了洞察力.
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