Results 191 to 200 of about 7,991 (240)

The photoreduction of cytochrome c by chloroplasts

Archives of Biochemistry and Biophysics, 1963
Abstract The photoreduction of cytochrome c by chloroplasts requires the enzyme, photosynthetic pyridine nucleotide reductase (PPNR). At low concentration PPNR catalyzes the photoreduction of cytochrome c at a rate which is several fold greater than TPN reduction. Photophosphorylation is coupled to the reduction of cytochrome c, and the stoichiometry
D L, KEISTER, A, SANPIETRO
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Photoreduction of Thiosulfate in Semiconductor Dispersions

Helvetica Chimica Acta, 1983
AbstractConduction band electrons produced by band gap excitation of TiO2‐particles reduce efficiently thiosulfate to sulfide and sulfite. \documentclass{article}\pagestyle{empty}\begin{document}$ {\rm 2e}_{{\rm cb}}^ - ({\rm TiO}_{\rm 2}) + {\rm S}_{\rm 2} {\rm O}_3^{2 - } \longrightarrow {\rm S}^{2 - } + {\rm SO}_3^{2 - } $\end{document}This reaction
Borgarello, Enrico, Desilvestro, Jean, Graetzel, Michael, Pelizzetti, Ezio   +3 more
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In vitro labeling of polynucleotides by photoreduction

Biochimica et Biophysica Acta (BBA) - Nucleic Acids and Protein Synthesis, 1971
Abstract 1. Treatment with NaB3H4 in the presence of ultraviolet irradiation is a rapid and economical method of introducing 3H into DNA and RNA. The reaction was modified into a usable laboratory procedure. Specific activities of up to 8700 counts/min per μg DNA were easily attained. 2.
V F, Lee, M P, Gordon
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Photochemistry of nonconjugated bichromophoric systems: Photoreduction and photoreductive polyrecombination kinetics

Journal of Polymer Science: Polymer Chemistry Edition, 1975
AbstractThe kinetics of the photoreduction of benzophenone and the reductive photopolymerization of diaryl ketones are closely interrelated. The photoreductive polyrecombination presents the characteristics of a polycondensation, namely, an increase in molecular weight with reaction time.
F. C. De Schryver, Tran Van Thien, G. Smets   +2 more
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Bimolecular Photoreduction of Aromatic Sulfoxides

The Journal of Organic Chemistry, 2001
Photolysis of aromatic sulfoxides in the presence of alkoxides in alcoholic solvents provides a photochemical route to the corresponding sulfides. Other electron donors also give sulfide with various degrees of success. The reaction could also be carried out using carbazoles as sensitizers, and quantitative yields could be obtained using N ...
J W, Cubbage, T A, Tetzlaff, H, Groundwater, R D, McCulla, M, Nag, W S, Jenks   +5 more
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Photoreduction and ‐oxidation

ChemInform, 2003
AbstractFor Abstract see ChemInform Abstract in Full Text.
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Photoreduction of metallophthalocyanines and phthalocyanine-sensitized photoreduction of methylviologen in the presence of azaferrocene

Inorganica Chimica Acta, 1995
Abstract Illumination with red light (λ > 600 nm) of magnesium and aluminium phthalocyanines, Mg(Pc-2) and Al(Pc-2)Cl, respectively, in dimethylformamide, and tetrasulfonatophthalocyanines ZnPcS4 and AlPcS4 in water containing azaferrocene leads to efficient reduction of these macrocyclic complexes; with methylviologen (MV2+) formation of MV+ is ...
Janusz Zakrzewski, Charles Giannotti
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Photoreduction of chlorobiphenyls by NaBH4

Journal of the Chemical Society, Chemical Communications, 1975
Photoreduction of 3- and 4-chlorobiphenyls by NaBH4 is described and a hydride-proton-transfer mechanism is deduced for the former case on the basis of deuterium labelling experiments.
Kazuo Tsujimoto, Shigeru Tasaka, Mamoru Ohashi   +2 more
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Photoreduction of pentachlorobenzenes

Journal of Agricultural and Food Chemistry, 1971
D G, Crosby, N, Hamadmad
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Photoreduction of 4,4'-dichlorobiphenyl

Journal of Agricultural and Food Chemistry, 1974
G D, Nordblom, L L, Miller
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