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在纳米反应器中,电驱动的多酶级联转化CO2到乙烯糖醇

Likun Luan^1,2, Yingfang Zhang¹, Xiuling Ji¹

¹Beijing Key Laboratory of Ionic Liquids Clean Process, CAS Key Laboratory of Green Process and Engineering, State Key Laboratory of Mesoscience and Engineering, Institute of Process Engineering, Chinese Academy of Sciences, Beijing, 100190, P. R. China.

Advanced science (Weinheim, Baden-Wurttemberg, Germany)

|September 4, 2024

概括

这项研究引入了一种新的多酶级联,用于将二氧化碳 (CO2) 转化为乙烯基醇 (EG),使用与结合的有机框架纳米反应器和电再生NADH系统.

科学领域:

生物催化和合成生物学
绿色化学和可持续的过程
纳米技术和材料科学材料科学

背景情况:

二氧化碳 (CO2) 的利用仍然是可持续化学的一个重大挑战.
多酶级联反应为复杂的化学转化提供了高效的途径.
开发在温和条件下转化二氧化碳的综合系统是非常理想的.

研究的目的:

开发一种新的多酶级联途径,用于直接将二氧化碳转化为乙烯基醇 (EG).
为酶级联构建一个高效的NADH再生系统.
设计和利用一个纳米反应器用于酶固定和提高反应效率.

主要方法:

一个由四种酶 (PaFDH,BmFADH,PpGALS,GoADH) 组成的级联酶被设计用于将CO2转化为EG.
一个基于的电极被开发用于电化学NADH再生.
一个结有机框架 (HOF) 纳米反应器被合成用于酶固定.

主要成果:

电极实现了82.9%的法拉达效率和高NADH生产率.
霍夫纳米反应器显示出高酶负载能力 (990毫克/克).
综合系统产生了0.15 mM EG,平均CO2转化率为7.15 × 10^-7 mmol CO2 min^-1 mg^-1 酶.

结论:

成功建立了一种电驱动的多酶级联系统,用于二氧化碳的转化.
该HOF纳米反应器有效地集成了酶催化和电化学再生.
这种方法提供了一个有前途的策略,用于在单个中从二氧化碳中合C-C.

关键词:

减少二氧化碳的减少电气-NADH再生的再生乙烯基甘醇是一种乙烯基甘醇.结有机框架与结有机框架.多酶级连锁转换的多酶级连锁转换.

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