Abstract
Highly effective antibacterial surfaces are crucial to prevent bacterial infections. In this work, we developed a simple method based on Ag/TiO2 nanoparticles via a dopamine-assisted process with long-term antibacterial efficacy, for the preparation of antibacterial glass surfaces. The chemical and morphological features of the prepared surfaces were investigated through field-emission scanning electron microscopy coupled with energy-dispersive X-ray spectrometry, X-ray diffraction, and X-ray photoelectron spectrometry. The ultraviolet-visible spectroscopy absorption spectra of the prepared glass samples were measured with a spectrophotometer. The prepared Ag/TiO2 nanoparticle modified surfaces exhibited high activity in the elimination of the Gram-negative Escherichia coli and Gram-positive Bacillus subtilis bacteria under visible light and still maintained good antibacterial properties against E. coli after immersion in phosphate buffered saline solution for 60 days.
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