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Irreversible uptake of palladium from aqueous systems using l-cysteine methyl ester physisorbed on carbon black

“…Cysteine has been shown to act as a stable ligand for Pd(II) in solution, 32 although the oxidation of palladium to palladium oxide results in the concurrent oxidation of physisorbed Lcysteine to cysteinesulfonic acid. 30 The presence of iron and copper strongly catalyses the spontaneous oxidation of cysteine to cystine, 33 and given the demonstrated presence of copper and other metals in the CB sample, it can be speculated that at least some of the cysteine could act as a reducing agent. Therefore, in addition to the physisorbed CysOMe assisting in the binding of Pd(II) to the CB surface, the oxidation of cysteine to cystine (or cysteinesulfonic acid) participates in the reduction of Pd(II) to Pd (0) is a strong possibility.…”

Kinetics and mechanism of the interaction of thioglycolic acid with [(H2O)(tap)2RuORu(tap)2(H2O)]2+ ion at physiological pH

“…The bonding mode of thioglycolic acid (tgaH 2 ) [41][42][43] is not fully understood, as it was not possible to isolate the solid product. In the studied reaction condition i.e.…”

Binding of Platinum(II) to Some Biologicaly Important Thiols

“…We recently reported a detailed kinetic and mechanistic study of the complex formation between different platinum(If)complexes and some thiols [10,12,13]. Since interactions between platinum(II) complexes and sulfur-containing ligands are very important from biological and medicinal aspects, in the present paper, we reported a study of the rection between [Pt(terpy)Cl] and some biologically important thiols such as" glutathione, L-cysteine, D-penicillamine and thioglycolic acid.…”