Ethanol synthesis based on the photoredox system consisting of photosensitizer and dehydrogenases

Amao, Yutaka; Shuto, Naho; Iwakuni, Hideharu

doi:10.1016/j.apcatb.2015.06.051

Cited by 15 publications

(4 citation statements)

References 36 publications

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“…Later on, the same group used a chlorophyll derivative, chlorin- e 6 of the zinc complex (Zn Chl- e 6 ), as a photocatalyst to drive the regeneration of NADPH and MV for ethanol biosynthesis. 96 Remarkably, water photolysis by Zn Chl- e 6 was utilized in this research, which provided a novel method for the fabrication of the photocatalysis part in APS's.…”

Section: Fabrication Of Apsmentioning

confidence: 99%

Artificial photosynthesis systems for solar energy conversion and storage: platforms and their realities

Wang

Zhang

et al. 2022

Chem. Soc. Rev.

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Section: Fabrication Of Apsmentioning

confidence: 99%

Artificial photosynthesis systems for solar energy conversion and storage: platforms and their realities

Wang

Zhang

et al. 2022

Chem. Soc. Rev.

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“…For instance, alcohol (methanol and ethanol) as a solar fuel are synthesized from organic acid via aldehyde dehydrogenase (AldDH) and alcohol dehydrogenase (ADH) 1,2,29,30 by reduction of organic acid to aldehyde and aldehyde to alcohol, respectively, using MV •+ as an artificial coenzyme. 1,30 It has been reported that the efficiency of chemical conversion from CO 2 to methanol using FDH, AldDH, and ADH was improved by immobilizing these enzymes in a silica sol−gel matrix. 29 Therefore, Ru(bpy) 3 2+ / MV 2+ /FDH/PGP50 may be developed as a light-induced methanol production reactor by immobilizing AldDH and ADH.…”

Section: +mentioning

confidence: 99%

“…This enhancement caused by the dense three-dimensional immobilization of the photosensitizer, MV, and FDH in the nanopores inside PGP is expected to be applicable to multiple-step catalytic reactions that use formic acid as the substrate, if the appropriate enzyme/catalyst is immobilized in the nanopores. For instance, alcohol (methanol and ethanol) as a solar fuel are synthesized from organic acid via aldehyde dehydrogenase (AldDH) and alcohol dehydrogenase (ADH) ,,, by reduction of organic acid to aldehyde and aldehyde to alcohol, respectively, using MV •+ as an artificial coenzyme. , It has been reported that the efficiency of chemical conversion from CO 2 to methanol using FDH, AldDH, and ADH was improved by immobilizing these enzymes in a silica sol–gel matrix . Therefore, Ru(bpy) 3 2+ /MV 2+ /FDH/PGP50 may be developed as a light-induced methanol production reactor by immobilizing AldDH and ADH.…”

mentioning

confidence: 99%

CO₂ Photoreduction by Formate Dehydrogenase and a Ru-Complex in a Nanoporous Glass Reactor

Noji

Jin

Nango

et al. 2017

ACS Appl. Mater. Interfaces

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In this study, we demonstrated the conversion of CO to formic acid under ambient conditions in a photoreduction nanoporous reactor using a photosensitizer, methyl viologen (MV), and formate dehydrogenase (FDH). The overall efficiency of this reactor was 14 times higher than that of the equivalent solution. The accumulation rate of formic acid in the nanopores of 50 nm is 83 times faster than that in the equivalent solution. Thus, this CO photoreduction nanoporous glass reactor will be useful as an artificial photosynthesis system that converts CO to fuel.

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“…By using a catalyst, CO 2 is converted to a low carbon fuel source or organic molecules such as formic acid and methanol. Enzymes that can convert CO 2 to organic molecules have high selectivity in aqueous solutions at room temperature and at ordinary pressure, and are promising catalysts for artificial photosynthesis systems . Formate dehydrogenase (FDH), from Candida boidinii , catalyzes the oxidation of formic acid to CO 2 with NAD + and the reduction of CO 2 to formic acid with NADH .…”

Section: Introductionmentioning

confidence: 99%

An Artificial Co‐enzyme Based on the Viologen Skeleton for Highly Efficient CO₂ Reduction to Formic Acid with Formate Dehydrogenase

Ikeyama

Amao

2017

ChemCatChem

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Formate dehydrogenase (FDH) is an attractive catalyst for the reduction of CO2 because CO2 is converted to formic acid by FDH at room temperature under normal pressure in neutral aqueous solution. The reduced form of methylviologen acts as an artificial co‐enzyme for FDH in the conversion of CO2 to formic acid. To improve the catalytic activity of FDH in reducing CO2, viologen derivatives with ionic groups were synthesized as effective artificial co‐enzymes for FDH. We used enzyme kinetic analysis to assess the effect of the ionic amino or carboxyl functional groups in the reduced form of the viologen derivatives on the catalytic activity of FDH with respect to the reduction of CO2. By using 1,1′‐diaminoethyl‐4,4′‐bipyridinium salt, which is the reduced form of a viologen derivative with two amino groups, we optimized the reduction of CO2 to formic acid with FDH. The catalytic efficiency value (kcat/Km) of the reduced form of 1,1′‐diaminoethyl‐4,4′‐bipyridinium salt was estimated to be more than 560 times larger than that of the natural co‐enzyme NADH. From the analysis result, the CO2 reduction was influenced by the ionic group of the viologen derivative.

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Ethanol synthesis based on the photoredox system consisting of photosensitizer and dehydrogenases

Cited by 15 publications

References 36 publications

Artificial photosynthesis systems for solar energy conversion and storage: platforms and their realities

Artificial photosynthesis systems for solar energy conversion and storage: platforms and their realities

CO₂ Photoreduction by Formate Dehydrogenase and a Ru-Complex in a Nanoporous Glass Reactor

An Artificial Co‐enzyme Based on the Viologen Skeleton for Highly Efficient CO₂ Reduction to Formic Acid with Formate Dehydrogenase

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Ethanol synthesis based on the photoredox system consisting of photosensitizer and dehydrogenases

Cited by 15 publications

References 36 publications

Artificial photosynthesis systems for solar energy conversion and storage: platforms and their realities

Artificial photosynthesis systems for solar energy conversion and storage: platforms and their realities

CO2 Photoreduction by Formate Dehydrogenase and a Ru-Complex in a Nanoporous Glass Reactor

An Artificial Co‐enzyme Based on the Viologen Skeleton for Highly Efficient CO2 Reduction to Formic Acid with Formate Dehydrogenase

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Product

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CO₂ Photoreduction by Formate Dehydrogenase and a Ru-Complex in a Nanoporous Glass Reactor

An Artificial Co‐enzyme Based on the Viologen Skeleton for Highly Efficient CO₂ Reduction to Formic Acid with Formate Dehydrogenase