通过应变增强酶体分离:上的血清案例
Yonghui Wang1, Sha Yang1, Miguel Fuentes-Cabrera2
1Nano Structural Materials Center, School of Materials Science and Engineering, Nanjing University of Science and Technology , Nanjing 210094, Jiangsu, China.
Journal of the American Chemical Society
|May 27, 2017
概括
对于制药来说,分离血清酶体至关重要. 铜表面表现有前途,特别是当用改造时,通过诱导应变提高分离效率.
科学领域:
- 表面科学
- 计算化学
- 基质化学
背景情况:
- 氨酸以两种反体 (d-氨酸和l-氨酸) 的形式存在,具有相同的物理性质,但具有不同的生理作用.
- 由于不同的生物活性,对制药应用而言,酶分离至关重要.
- 开发有效的分离性分子方法是一个重大挑战.
研究的目的:
- 为了研究各种金属 (531) 表面的分离力.
- 了解表面结构和电子相互作用在奇拉识别中的作用.
- 探索使用修改表面提高反分离效率的策略.
主要方法:
- 使用密度函数理论 (DFT) 的计算.
- 纳入了范德瓦尔斯 (vdW) 相互作用的精确处理.
- 研究了铜 (Cu),银 (Ag),金 (Au) 和 (Pd) 的 (531) 表面.
- 通过用 (Ni) 原子装饰Cu531) 步骤位进行双金属表面修饰.
主要成果:
- 在研究的原始金属表面中,Cu531) 显示出最高的反选择性.
- 531) 的增强效率归因于和基质的形态应变.
- 与原始表面相比,用Ni原子装饰Cu531) 步位增加了36%的血清酶选择性.
- 双金属阶层表面显著增加了应变,增强了性分离.
结论:
- 531) 是一种高效的酸盐分离表面.
- 表面应变在实现高效的性分子分离方面起着至关重要的作用.
- 双金属阶层表面提供了一个有前途的途径,可以显著改善小性分子的反分离过程.
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