scholarly journals One-electron Reduction Potentials of Several Electron Acceptor Molecules and Cation Radicals of Donors

1980 ◽  
Vol 53 (9) ◽  
pp. 2673-2674 ◽  
Author(s):  
Yôichi Iida
Keyword(s):  
Electron Acceptor ◽  
Cation Radicals ◽  
Reduction Potentials ◽  
Electron Reduction ◽  
Acceptor Molecules

Thermodynamic characteristics of NADH/NAD+ analogues in acetonitrile: 2-methyl, 4-methyl and 2,4-dimethyl 1-benzyl-dihydronicotinamides and the corresponding pyridinium species

1995 ◽  
Vol 73 (4) ◽  
pp. 531-538 ◽  
Author(s):  
Agnès Anne ◽  
Jacques Moiroux
Keyword(s):  
Cyclic Voltammetry ◽  
Hydride Transfer ◽  
Thermodynamic Characteristics ◽  
Redox Potentials ◽  
Methyl Substitution ◽  
Cation Radicals ◽  
Reduction Potentials ◽  
Electron Reduction ◽  
Transfer Thermodynamics ◽  
Electron Transfers

Procedures were elaborated for the syntheses of the title compounds. The thermodynamic changes brought about by each methyl substitution were then determined quantitatively. In acetonitrile, the respective one-electron oxidation and one-electron reduction potentials of the NADH and NAD+ analogues were obtained by means of direct and indirect (using ferrocene mediators) cyclic voltammetry. The redox potentials of formal hydride transfers were deduced from the studies of equilibrated reactions occurring between the analogues. The pKa's of the cation radicals ensued. Keywords: NADH/NAD+ methylated analogues, one-electron transfers, hydride transfer, thermodynamics.

scholarly journals Inhibition of plant fatty acid synthesis by nitroimidazoles

1981 ◽  
Vol 198 (1) ◽  
pp. 193-198 ◽  
Author(s):  
A V Jones ◽  
J L Harwood ◽  
M R Stratford ◽  
P K Stumpf
Keyword(s):  
Fatty Acid ◽  
Fatty Acid Synthesis ◽  
Soluble Fraction ◽  
Acid Synthesis ◽  
Long Chain Fatty Acids ◽  
Reduction Potentials ◽  
Marked Inhibition ◽  
Mechanism Of Inhibition ◽  
Pea Seeds ◽  
Electron Reduction

1. The effect of the addition of a number of nitroimidazoles was tested on fatty acid synthesis by germinating pea seeds, isolated lettuce chloroplasts and a soluble fraction from pea seeds. 2. All the compounds tested had a marked inhibition on stearate desaturation by lettuce chloroplasts and on the synthesis of very-long-chain fatty acids by pea seeds. 3. In contrast, the effect of the drugs on total fatty acid synthesis from [14C]acetate in chloroplasts was related to the compound's electron reduction potentials. 4. Of the compounds used, only metronidazole had a marked inhibition on palmitate elongation in the systems tested. 5. The mechanism of inhibition of plant fatty acid synthesis by nitroimidazoles is discussed and the possible relevance of these findings to their neurotoxicity is suggested.

One-electron Reduction Potentials of Tea Polyphenolic Compounds

1998 ◽  
Vol 14 (11) ◽  
pp. 1020-1024
Author(s):  
Wang Chao-Cun ◽  
◽  
Ha Cheng-Yong ◽  
Yao Si-De
Keyword(s):  
Polyphenolic Compounds ◽  
Reduction Potentials ◽  
Electron Reduction
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