Antibiotic-Like Behaviour of Polyoxometalates In vitro comparative study: seven polyoxotungstates/nine antibiotics  against gram-positive and gram-negative bacteria

Balici, Stefana; Niculae, Mihaela; Pall, Emoke; Rusu, Mariana; Rusu, Dan; Matei, Horea

Stefana Balici, Mihaela Niculae, Emoke Pall, Mariana Rusu, Dan Rusu, Horea Matei

Antibiotic-Like Behaviour of Polyoxometalates In vitro comparative study: seven polyoxotungstates/nine antibiotics against gram-positive and gram-negative bacteria

Abstract:

Knowing acquired antibiotic resistance of bacteria, discovery of new antibacterial compounds is an important goal. Herein, seven polyoxometalates with tungsten were synthesized by a single-step self-assembling method. The pseudo-Keggin/sandwich series of tungstobismuthates were characterized by analytical techniques including atomic absorption, thermal analysis, UV and FT-IR, spectroscopy. Their antibacterial activity were investigated against Gram-positive and Gram-negative bacteria, and against a Methicillin-Resistant Staphylococcus aureus strain isolated by us, comparatively with nine classic antibiotics. We found that five polyoxotungstates had significant antibacterial activity at the tested concentrations. Our results demonstrate antibiotic-like behaviors of these nanocompounds and their strong antimicrobial activity, and recommend them as alternative chemotherapeutics agents.

Keywords:
polyoxometalates; tungsten; gram-positive and gram-negative bacteria; MRSA; transition metal cations

Issue: 2016, Volume 67, Issue 3

Pages:

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This article is published under the Creative Commons Attribution 4.0 International License

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Stefana Balici, Mihaela Niculae, Emoke Pall, Mariana Rusu, Dan Rusu, Horea Matei Antibiotic-Like Behaviour of Polyoxometalates In vitro comparative study: seven polyoxotungstates/nine antibiotics against gram-positive and gram-negative bacteria

Stefana Balici, Mihaela Niculae, Emoke Pall, Mariana Rusu, Dan Rusu, Horea Matei

Antibiotic-Like Behaviour of Polyoxometalates In vitro comparative study: seven polyoxotungstates/nine antibiotics against gram-positive and gram-negative bacteria