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Silver oxide-bismuth oxybromide nanocomposites as an excellent weapon to combat with opportunistic human pathogens

Silver oxide-bismuth oxybromide nanocomposites as an excellent weapon to combat with opportunistic human pathogens

Authors :
Narendra Singh Bisht
Ankita H. Tripathi
Suresh Kumar
S.P.S. Mehta
Anirban Dandapat
Source :
Journal of Photochemistry and Photobiology, Vol 6, Iss , Pp 100031- (2021)
Publication Year :
2021
Publisher :
Elsevier, 2021.

Abstract

Silver oxide loaded bismuth oxybromide (Ag2O/BiOBr) nanocomposite was synthesized using high efficiency solution-based method. The as-prepared samples were characterized by different analytical techniques. The synthesized nanoparticles were then evaluated for antimicrobial efficacy on opportunistic human pathogenic bacteria viz. Escherichia coli, Pseudomonas aeruginosa, Salmonella typhimurium, Klebsiella pneumonia, Aeromonas salmonicida. In the experiments, all the five strains were treated with BiOBr and Ag2O/BiOBr, in a concentration ranging from 0.5 mg/mL to 2.0 mg/mL and Ag2O/BiOBr was found to be highly effective. The minimum inhibitory concentration (MIC) and minimum bactericidal concentration (MBC) of Ag2O/BiOBr was 0.5 mg/mL and 1 mg/mL against E. coli, Salmonella typhimurium and Klebsiella pneumonia, 1 mg/mL and 1.5 mg/mL against Pseudomonas aeruginosa, and Aeromonas salmonicida, respectively. Only 2 h of exposure to different concentration of Ag2O/BiOBr nanocomposites completely inhibited the growth of all the tested bacterial strains showing an effective dose dependent inhibition of bacterial growth in a short time period. The results showed the potential bactericidal activity of as synthesized Ag2O/BiOBr, which could be an alternative to the conventional antimicrobial agents currently used and a perspective for the application of nano-silver with antibiotics to improve antimicrobial activity.

Details

Language :
English
ISSN :
26664690
Volume :
6
Issue :
100031-
Database :
Directory of Open Access Journals
Journal :
Journal of Photochemistry and Photobiology
Publication Type :
Academic Journal
Accession number :
edsdoj.7b3f579c5e62446882b4201983c3bee4
Document Type :
article
Full Text :
https://doi.org/10.1016/j.jpap.2021.100031