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1: Nanomedicine. 2007 Jun;3(2):168-71. Epub 2007 Apr 30.Click here to read Links

Synthesis and effect of silver nanoparticles on the antibacterial activity of different antibiotics against Staphylococcus aureus and Escherichia coli.

Shahverdi AR, Fakhimi A, Shahverdi HR, Minaian S.

Department of Pharmaceutical Biotechnology and Medical Nanotechnology Research Center, Faculty of Pharmacy, Medical Sciences/University of Tehran, Tehran, Iran. shahverd@sina.tums.ac.ir <shahverd@sina.tums.ac.ir>

Silver nanoparticles (Ag-NPs) have been known to have inhibitory and bactericidal effects. Resistance to antimicrobial agents by pathogenic bacteria has emerged in recent years and is a major health problem. The combination effects of Ag-NPs with the antibacterial activity of antibiotics have not been studied. Here, we report on the synthesis of metallic nanoparticles of silver using a reduction of aqueous Ag(+) ion with the culture supernatants of Klebsiella pneumoniae. Also in this article these nanoparticles are evaluated for their part in increasing the antimicrobial activities of various antibiotics against Staphylococcus aureus and Escherichia coli. The antibacterial activities of penicillin G, amoxicillin, erythromycin, clindamycin, and vancomycin were increased in the presence of Ag-NPs against both test strains. The highest enhancing effects were observed for vancomycin, amoxicillin, and penicillin G against S. aureus.

PMID: 17468052 [PubMed - indexed for MEDLINE]

Patient Drug Information

  • Penicillin G Potassium or Sodium Injection (Pfizerpen® )

    Your doctor has ordered penicillin, an antibiotic, to help treat your infection. The drug will be either injected into a large muscle (such as your buttock or hip) or added to an intravenous fluid that will drip through ...

  • Erythromycin (ERY-C® , Ery-Tab® , Erythromycin Base Filmtab® , ...)

    Erythromycin is an antibiotic used to treat certain infections caused by bacteria, such as bronchitis; diphtheria; Legionnaires' disease; pertussis (whooping cough); pneumonia; rheumatic fever; venereal disease (VD); and...

  • Vancomycin (Vancocin® )

    Vancomycin is used to treat colitis (inflammation of the intestine caused by certain bacteria) that may occur after antibiotic treatment. Vancomycin is in a class of medications called glycopeptide antibiotics. It works ...

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