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开放式架构单层金属有机框架,用于在光酶催化中无集成酶

Yufeng Zhang¹, Kun Wang¹, Jiayu Wu¹

¹Beijing National Laboratory for Molecular Science, State Key Laboratory of Rare Earth Materials Chemistry and Applications, College of Chemistry and Molecular Engineering, Peking University, Beijing 100871, China.

Journal of the American Chemical Society

|February 19, 2026

概括

本研究介绍了单层金属有机框架 (monoMOFs),用于高效的酶固定和光酶催化. 这些开放架构的单一MOF克服了传统MOF的局限性,实现了增强的酶负载和合作反应.

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) 用于酶固定,但在毛孔大小和合成方面存在局限性.
这些局限性限制了大型酶的宿舍和合作催化,阻碍了先进的应用.

研究的目的:

开发一个通用的开放架构策略,使用单层MOF (单MOF) 来进行不受限制的酶固定.
为了实现光酶系统的无集成,以提高催化效率.

主要方法:

合成了一种基于氨酸的单层MOF (Hf-DBP),厚度约为1.8nm.
在Hf-DBP上,共振固定的谷氨酸脱酶 (GDH) 和电子介质 (H-MBP-Rh) 在Hf-DBP上.
证明了用于NADH再生和α-谷氨酸酸减少的光酶级联反应.

主要成果:

开放的单层架构消除了孔封闭效应,允许更高的酶负载和基质可访问性.
实现了约90.6%的1,4-NADH再生,周转频率 (TOF) 为182小时-1.1.
证明了一种高效的光酶级联降低α-甲酸盐 (~96.3%的产量) 和超高的醇TOF (86,282h−1) 与酒精脱酶.

结论:

单层MOF克服了传统MOF在酶固定化方面的结构限制.
该平台可实现高性能,具有增强催化活性的一般光酶系统.
已确立的monoMOF作为先进生物催化应用的强大支架.

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