Light-induced hydrogen evolution in oxidising media promoted by catalytic sites encapsulated by phospholipid membranes

Maier, V.E.; Shafirovich, Vladimir

doi:10.1039/c39850001063

Cited by 8 publications

(2 citation statements)

References 1 publication

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Thus, for example, using hyd-ogenaze or fine-dispersed noble metals as catalysts, it appears possible to perform photochemical H2 evolution either only in the inner vesicle cavities or in the bulk solution outside vesicles (ref. 19,20). It has also been reported (ref, 21,22) about photochemical water oxidation on the catalysts -10.1351/pac198860071039 Downloaded from De Gruyter Online at 09/12/2016 02:42:56AM via free access (hydroxides-oxides of Go and Mn) immobilized on the outer surfaces of vesicle walls.…”

Section: Discussionmentioning

confidence: 83%

Vectorial phototransfer of electrons across lipid membranes

Zamaraev¹,

Lymar²,

Khramov³

et al. 1988

Pure and Applied Chemistry

View full text Add to dashboard Cite

Vectorial electron phototransfer across lipid membranesassisted by molecules -carriers of electronscan be used for providing spatially separated strong oxidant and reductant species. In this work the kinetics and mechanisms of the transmembrane vectorial electron phototransfer from donors located in the inner cavities of the lecithin lipid vesicles to acceptors located outside the vesicles were studied in two systems. The EDTA-ZnTPP-Methylviologen system contains tetraphenylporphyrinatozinc embedded into vesicular membrane. ZnTPP serves both as a photosensitizer and as a carrier of electron from EDTA to methylviologen. The Ru( bipy)gt-Cetylviologen-Pe(CB)$-system contains an electron carrier -cetylviologen, embedaed into the membrane. Under light the viologen transfers electron from photosensitizer -Ru(bipy):+ located in the inner cavity of the vesicle through membrane to Pe(CN)i-in the bulk volume. The possibilities are discussed of using photochemical systems based on lipid vesicles for accomplishing water cleavage.

show abstract

Section: Discussionmentioning

confidence: 83%

Vectorial phototransfer of electrons across lipid membranes

Zamaraev¹,

Lymar²,

Khramov³

et al. 1988

Pure and Applied Chemistry

View full text Add to dashboard Cite

show abstract

“…An analogous catalyst was proposed also by Maier and Shafirovich [164,[259][260][261]. The latter catalyst was prepared via sonification of the lipid in the solution of a platinum complex.…”

Section: Photocatalytic Reduction Of Watermentioning

confidence: 99%

Photoinduced electron transfer across membranes

Lymar

Parmon

Zamaraev

1991

Topics in Current Chemistry

View full text Add to dashboard Cite

Artificial Photosynthesis at Dynamic Self‐Assembled Interfaces in Water

Hansen

Troppmann

König

2015

Chemistry A European J

View full text Add to dashboard Cite

Artificial photosynthesis is one of the big scientific challenges of today. Self-assembled dynamic interfaces, such as vesicles or micelles, have been used as microreactors to mimic biological photosynthesis. These aggregates can help to overcome typical problems of homogeneous photocatalytic water splitting. Microheterogeneous environments organize catalyst-photosensitizer assemblies at the interface in close proximity and thus enhance intermolecular interactions. Thereby vesicles and micelles may promote photoinitiated charge separation and suppress back electron transfer. The dynamic self-assembled interfaces solubilize non-polar compounds and protect sensitive catalytic units and intermediates against degradation. In addition, vesicles provide compartmentation that was used to separate different redox environments needed for an overall water splitting system. This Minireview provides an overview of the applications of micellar and vesicular microheterogeneous systems for solar energy conversion by photosensitized water oxidation and hydrogen generation.

show abstract

Light-induced hydrogen evolution in oxidising media promoted by catalytic sites encapsulated by phospholipid membranes

Cited by 8 publications

References 1 publication

Vectorial phototransfer of electrons across lipid membranes

Vectorial phototransfer of electrons across lipid membranes

Photoinduced electron transfer across membranes

Artificial Photosynthesis at Dynamic Self‐Assembled Interfaces in Water

Contact Info

Product

Resources

About