Synthesis and Antimicrobial Properties of TiO2 and TiO2: Cu Thin Films Synthesised by a Cost Effective Sol–Gel Process
Bacterial infection is a common clinical problem which can be prevented by coating surgical instruments or implants with materials possessing antibacterial properties. The high incidence of infections caused by either fungi or bacteria on the surface of implanted biomedical devices and in the hospital environment has a severe impact on patient health. However, no detailed investigations have been reported with different concentrations of copper with TiO2 on fungi and bacteria. In this present study, we have systematically studied the antifungal and antibacterial properties using pure TiO2 and TiO2 with Cu as an additive by using a simple and cost effective sol–gel process. The films were deposited on glass and Si substrates and their structural and morphological properties were investigated by employing standard techniques such as scanning electron microscopy, profilometry and X-ray photoelectron spectroscopy. The antifungal and antibacterial properties were assessed by using the drop test method. It is evident from these results that antimicrobial activity increased with increasing Cu concentration and no colony formation was observed after 4 hours.
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Document Type: Research Article
Publication date: 01 August 2012
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