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Antibiofilm Activity of Natural Zeolite Supported Nanozno: Inhibition of Esp Gene Expression of Enterococcus Faecalis Publisher Pubmed



Partoazar A1 ; Talaei N2, 3 ; Bahador A3 ; Pourhajibagher M4 ; Dehpour S1 ; Sadati M5 ; Bakhtiarian A6
Authors

Source: Nanomedicine Published:2019


Abstract

Aim: To evaluate the antibiofilm effect and esp gene downregulation of Enterococcus faecalis through nanozinc oxide fabricated on natural zeolite (NanoZnO/Ze). Materials & methods:Zeolite and NanoZnO/Ze materials were characterized by X-ray diffraction, X-ray fluorescence and field emission scanning electron microscopy coupled with energy dispersive X-ray. Atomic absorption spectroscopy was used to evaluate zinc release. E. faecalis biofilm formation and its esp gene expression were assessed under nanocomposite treatment. Results: Spherical-shaped ZnO nanoparticles with an average size of 30 nm were dispersed on the zeolites surface. The leakage of cationic zinc from NanoZnO/Ze displayed a long lasting and considerable release content (p < 0.0001) compared with ZnO/Ze. NanoZnO/Ze effectively inhibited (p < 0.0001) biofilm formation and affected esp gene downregulation of E. faecalis. Conclusion: Our results show that NanoZnO/Zeolite can potentiate against biofilm infections due to E. faecalis and possibly other pathogens. © 2019 Future Medicine Ltd.
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