Synthesis and Antimicrobial Activity of Silver Citrate Complexes | Zendy

Stojan S. Djokić | Zendy

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Synthesis and Antimicrobial Activity of Silver Citrate Complexes

Author(s) -

Stojan S. Djokić

Publication year - 2008

Publication title -

bioinorganic chemistry and applications

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.865

H-Index - 35

eISSN - 1565-3633

pISSN - 1687-479X

DOI - 10.1155/2008/436458

Subject(s) - chemistry , antimicrobial , combinatorial chemistry , nanotechnology , organic chemistry , materials science

Formation of silver citrate/citric acid complexed solutions was investigated. Although, silver citrate is minimally soluble in water, it can successfully be dissolved in citric acid solutions. The maximum concentration of Ag(I) in solution is estimated at 23 to 25 g/L if the concentration of citric acid is at least 4 mol/L or higher. The dissolution of silver citrate in citric acid solutions was attributed to the formation of silver citrate complexes of a general formula [Ag 3 (C 6 H 5 O 7 ) n +1 ] 3 n − . The silver citrate/citric acid solutions, containing more than about 13 g/L Ag + ion, have exhibited a decrease in Ag(I) concentration in solution over time, due to crystallization. The crystallization product was attributed to the formation of [Ag 3 C 6 H 5 O 7 ] x · n H 2 O. Importantly, the diluted silver citrate/citric acid complexed solutions have exhibited very strong bacteriostatic and bactericidal activities.

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