期刊
ANTIMICROBIAL AGENTS AND CHEMOTHERAPY
卷 59, 期 7, 页码 4031-4039出版社
AMER SOC MICROBIOLOGY
DOI: 10.1128/AAC.05177-14
关键词
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资金
- Natural Sciences and Engineering Council of Canada Banting Postdoctoral Fellowship Program
- Alberta Innovates Health Solutions
- NSERC
- NSERC-Engage grant
- MITACS Accelerate fellowship
- NSERC Industrial R&D Fellowship (IRDF)
- Alberta Innovates Technology Futures (AITF) R&D Associates Fellowship
- Exciton Technologies Inc. (ETI)
- Alberta Innovates [201300520] Funding Source: researchfish
Historically it has been accepted, and recent research has established, that silver (Ag) is an efficacious antimicrobial agent. A dwindling pipeline of new antibiotics, combined with an increase in the number of antibiotic-resistant infections, is bringing Ag to the fore as a therapeutic compound to treat infectious diseases. Currently, many formulations of Ag are being deployed for commercial and medical purposes, with various degrees of effectiveness at killing microbial cells. Here, we evaluated the antimicrobial and antibiofilm capacity of our lead compound, silver oxynitrate [Ag(Ag3O4)(2)NO3 or Ag7NO11], against other metal compounds with documented antimicrobial activity, including Ag2SO4, AgNO3, silver sulfadiazine (AgSD), AgO, Ag2O, and CuSO4. Our findings reveal that Ag7NO11 eradicates biofilm and planktonic populations of Pseudomonas aeruginosa, Escherichia coli, Staphylococcus aureus, uropathogenic Escherichia coli (UPEC), fluoroquinolone-resistant Pseudomonas aeruginosa (FQRP), and methicillin-resistant Staphylococcus aureus (MRSA) at lower concentrations than those of the other tested metal salts. Altogether, our results demonstrate that Ag7NO11 has an enhanced efficacy for the treatment of biofilm-forming pathogens.
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