The bimolecular photochemical quenching of the tris(2,2'-bipyridyl)ruthenium (II) complex by ferricyanide ions in water-ethylene glycol binary media was investigated using a spectrophotometric approach, as previously reported by our research group. Time-resolved spectroscopy revealed that dynamic photochemical quenching occurred via a diffusion-dominated pathway. The static quenching process was found to occur significantly when the concentration of ethylene glycol was greater than 40 wt%.
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October 2024
Methionine (Met), a sulfur-containing amino acid, is essential for the underlying biological processes in living organisms. In addition to its importance as a starting building block for peptide chain elongation in protein biosynthesis, Met is a direct precursor of -adenosyl-l-methionine, an indispensable methyl donor molecule in primary and secondary metabolism. bacteria are well known to produce diverse secondary metabolites, but many strains lack canonical Met pathway genes for l-homocysteine, a direct precursor of Met in bacteria, plants, and archaea.
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