Bulletin of the Korean chemical society | |
Synthesis of Cysteine Capped Silver Nanoparticles by Electrochemically Active Biofilm and their Antibacterial Activities | |
Jintae Lee1  Moo Hwan Cho1  Shafeer Kalathil1  Mohammad Mansoob Khan1  | |
关键词: Cys-AgNPs; Silver colloidal nanoparticles; (L)-Cysteine; Electrochemically active biofilm (EAB); Hydrogen bonding; | |
DOI : | |
学科分类:化学(综合) | |
来源: Korean Chemical Society | |
【 摘 要 】
Cysteine capped silver nanoparticles (Cys-AgNPs) have been synthesized by employing electrochemically active biofilm (EAB), AgNO3 as precursor and sodium acetate as electron donor in aqueous solution at 30 oC. Cys-AgNPs of 5-10 nm were synthesized and characterized by UV-Vis, FT-IR, XRD and TEM. Capping of the silver nanoparticles with cysteine provides stability to nanoparticles by a thiolate bond between the amino acid and the nanoparticle surface and hydrogen bonding among the Cys-AgNPs. In addition, the antibacterial effects of as-synthesized Cys-AgNPs have been tested against two pathogenic bacteria Escherichia coli (O157:H7) and Pseudomonas aeruginosa (PAO1). The results demonstrate that the as-synthesized Cys-AgNPs can proficiently inhibit the growth and multiplication of E. coli and P. aeruginosa.
【 授权许可】
Unknown
【 预 览 】
Files | Size | Format | View |
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RO201912010243972ZK.pdf | 2469KB | download |