Start Over

A Well-Coupled Supramolecular System Accelerates Photophosphorylation.

Authors :: Li Z
Yu F
Wang S
Cai Y
Xu Y
Li Y
Fei J
Li J
Source :: Angewandte Chemie (International ed. in English) [Angew Chem Int Ed Engl] 2025 Jan 27; Vol. 64 (5), pp. e202417474. Date of Electronic Publication: 2024 Nov 07.
Publication Year :: 2025
Abstract: Supramolecular assembly allows multiple chemical/bio-components integrated as one system for cascade biochemical reactions. Herein the graphitic carbon nitrides (g-C <subscript>3</subscript> N <subscript>4</subscript> ) as photocatalyst trapped in a dipeptide hydrogel covering adenosine triphosphate (ATP) synthase accelerates the photophosphorylation through ATP synthesis. Self-assembled N-fluorenylmethoxycarbonyl diphenylalanine (Fmoc-FF) as nanofibrils to allow g-C <subscript>3</subscript> N <subscript>4</subscript> nanosheets are embedded as a complex Fmoc-FF/g-C <subscript>3</subscript> N <subscript>4</subscript> hydrogel. Fmoc-FF gel exhibits good electronic coupling with g-C <subscript>3</subscript> N <subscript>4</subscript> , which enables a photo-induced proton generation. The transmembrane proton gradient can be established by ATP synthase-lipid reconstituted on the surface of the Fmoc-FF/g-C <subscript>3</subscript> N <subscript>4</subscript> hydrogel to enhance the ATP synthesis. It indicates that the Fmoc-FF/g-C <subscript>3</subscript> N <subscript>4</subscript> /ATP synthase-lipid film can possess a longer-term ATP production capability and allow repeated immersion for sustained ATP production. Such a hydrogel-supported ATP synthesis platform is achieved by a procedure at a larger scale.<br /> (© 2024 Wiley-VCH GmbH.)