通过在金属亚酸框架中封装的酶进行高度酶选择性催化,其孔径大小由微粒控制
Hao Ren1, Jian Yuan2, Yi-Ming Li1,3
1Jiangsu Engineering Laboratory of Smart Carbon-Rich Materials and Device, School of Chemistry and Chemical Engineering, Southeast University, Nanjing 211189, China.
ACS central science
|March 4, 2024
概括
研究人员开发了一种新的金属有机框架 (MOF),MAF-6,具有大孔,以封装酶,以有效地进行奇拉分子的不对称合成,显著提高较大的基质的催化效率.
科学领域:
- 材料科学 材料科学 材料科学
- 生物催化剂是一种生物催化剂.
- 纳米技术 纳米技术
背景情况:
- 金属有机框架 (MOF) 为封装酶提供了增强的稳定性.
- 小的MOF开口限制了酶对小分子的可访问性,阻碍了更广泛的应用.
- 在MOF中酶固定对于开发高效的生物催化剂至关重要.
研究的目的:
- 开发一种具有大孔的新型MOF,用于酶封装.
- 为了使酶催化更大的性分子的不对称合成.
- 为了提高封装酶的催化效率.
主要方法:
- 使用可见的链接菌根合成MAF-6的水性合成.
- 在MAF-6中封装酶BCL.
- 在合成过程中优化表面活性剂效应 (例如,二甲基硫酸盐 - SDS).
- 描述MAF-6孔径 (7.6 Å) 和与ZIF-8 (3.4 Å) 的比较.
主要成果:
- MAF-6的孔径明显大于ZIF-8的孔径.
- 封装在MAF-6 (BCL@MAF-6-SDS) 中的酶BCL显示了比BCL@ZIF-8.8的催化效率大420倍.
- 这种生物复合物有效地合成了具有94-99%的抗选择性和高产量的药物前体.
结论:
- 可见链接器微粒导向合成使得可以创建用于酶封装的大孔MOF.
- 酵素@MAF-6生物复合物对于奇拉分子和药物的不对称合成非常有效.
- 这项工作促进了对MOF用于催化应用的酶封装的理解.
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