功能化金属有机框架用于Redox流生物反应器中用再生NADH
Feifei Li1,2, Wassim Ei Housseini2, Qunyan Zhu1
1National and Local Joint Engineering Research Center for Applied Technology of Hybrid Nanomaterials, Henan University, Kaifeng, 475000, China.
Chemistry (Weinheim an der Bergstrasse, Germany)
|August 8, 2024
概括
这项研究通过使用一种新型不动化的催化剂,增强了降低尼古丁胺氨酸二核酸 (NADH) 的电化学再生. 这一突破提高了工业化性化学合成和酶电合成的效率.
科学领域:
- 电化学 电化学 电化学
- 催化剂是一种催化剂.
- 生物技术是生物技术.
背景情况:
- 减少的尼古丁胺胺二核酸 (NADH) 的电化学再生对于工业化化学合成至关重要.
- 目前的方法由于高NADH消耗和低效的循环再生而面临限制.
- 开发强大而高效的NADH再生系统对于更广泛的工业应用至关重要.
研究的目的:
- 开发一种高效,稳定的电化学NADH再生系统.
- 在金属有机框架 (NU-1000) 上固定催化剂 ([Rh(Cp*) ((bpy) Cl]+),以提高稳定性和可重复使用性.
- 为了证明该系统在性化学合成的酶电催化过程中的有效性.
主要方法:
- 在现场生长的3D订购金属有机框架 (NU-1000) 在石墨上.
- 在NU-1000的Zr6节点上通过溶剂辅助连接体结合 (SALI) 实现[Rh(Cp*) ((bpy) Cl]+固定.
- 在流动生物反应器中应用,并与气体扩散电极 (GDE) 配合,用于H2氧化和NADH再生.
- 使用L-乳酸脱酶 (LDH) 的酶电催化合成L-乳酸盐.
主要成果:
- 实现了L-乳酸盐高效的酶电催化合成.
- 经过48小时后,证明了显著的总周转率 (TTN):为[Rh(Cp*) ((bpy) Cl]+的19600和NAD+的1750.
- 获得的高周转频率 (TOF):2350小时-1为[Rh(Cp*) ((bpy) Cl]+和210小时-1为NAD+.
- 固定催化剂在流系统中表现出高稳定性和可重复使用性.
结论:
- 开发的系统为电化学NADH再生提供了一种高效和可持续的方法.
- 在NU-1000中固定催化剂可提高其稳定性和催化活性.
- 这种方法为工业规模的性化学品的酶电合成提供了显著的潜力.
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