Abstract

Polymethylmethacrylat / TiO2 nanophotocatalyst is synthesized by irradiating the solution of TiO2 in methylmethacrylate monomer by γ-ray. In this method, polymerization of the methylmethacrylate monomer and the TiO2 reduction occurred simultaneously. Optical properties of the polymethylmethacrylat / TiO2 solutions are investigated using UV-Vis spectroscopy. The structural characterizations of the polymethylmethacrylat / TiO2 nanophotocatalyst are determined by FTIR spectroscopy and SEM measurements. The SEM image shows that the TiO2 nanoparticles disperse in the polymethylmethacrylat matrix with a relatively uniform distribution. The antibacterial studies show that the polymethylmethacrylat / TiO2 nanophotocatalyst is antibacterial against E.coli, as a model for gram-negative bacteria.

Highlights

  • Titanium dioxide (TiO2) as a photocatalytic antibacterial material has considerable beneficial properties such as incompatibility, high potential for self-cleaning and high antibacterial activity and is the basis for a number of commercial antibacterial products [1,2]

  • Antibacterial activity results The zone of inhibition toward clinical isolate Klebsiella spp. with pure Poly Methyl Methacrylate (PMMA) and PMMA/TiO2 NPs with different loading of TiO2 was evaluated under visible light

  • The data shows that PMMA/TiO2 NPs exhibited the antibacterial activity against Klebsiella spp. bacteria than pure PMMA

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Summary

Introduction

Titanium dioxide (TiO2) as a photocatalytic antibacterial material has considerable beneficial properties such as incompatibility, high potential for self-cleaning and high antibacterial activity and is the basis for a number of commercial antibacterial products [1,2]. Mills et al produced low density polyethylene (LDPE)–TiO2 films by an extrusion method and tested photocatalytic antibacterial activity, via the destruction of Klebsiella. Polymeric material such as Poly Methyl Methacrylate (PMMA) due to hydrophobic nature and low surface energy leads to low bacterial adhesion [2]. The photocatalysis and ultraviolet or visible absorption properties of TiO2 nanoparticles (NPs) that can be utilized in antibacterial finishing and antiultraviolet finishing of textiles to meet the demand of multi-functional finishing of textiles [8,9,10]. The aim of this examination is using of polymethylmethacrylat/TiO2 (hereafter PMMA/TiO2)

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