Título Antimicrobial Properties of Nanostructured TiO2 Plus Fe Additive Thin Films Synthesized by a Cost-Effective Sol-Gel Process
Autores ENDRINO ARMENTEROS, JOSÉ LUIS, Prasad, R. G. S. V. , Basavaraju, D. , Rao, K. N. , Mosquera, A. , Naveen, C. S. , Phani, A. R.
Publicación externa No
Medio Nanoscience and Nanotechnology Letters
Alcance Article
Naturaleza Científica
Cuartil JCR 4
Cuartil SJR 3
Impacto JCR 0.52800
Impacto SJR 0.23900
Web https://www.scopus.com/inward/record.uri?eid=2-s2.0-82455206153&doi=10.1166%2fnnl.2011.1238&partnerID=40&md5=031b59dee9ebc42a1c26d7bc6289e751
Fecha de publicacion 01/10/2011
ISI 300212000005
Scopus Id 2-s2.0-82455206153
DOI 10.1166/nnl.2011.1238
Abstract We prepared thin films composed of pure TiO2 or TiO2 with an Fe additive (at concentrations of 0.2-0.8 wt%) via a simple and cost effective sol gel process, and tested their antifungal properties (against Candida albicans (MTCC-1637), Candida tropicalis (MTCC-184), Candida parapsilosis (MTCC-2509), and Candida glabrata (MTCC-3019) and antibacterial properties (against Staphylococcus faecalis (NCIM-2604) Staphylococcus epidermidis (NCIM-2493), Staphylococcus aureus (NCIL-2122), and Bacillus subtilis (NCIM-2549)). The films were deposited on glass and Si substrates and subjected to annealing at 400 degrees C for 3 h in ambient air. The film structural and morphological properties were investigated by X-ray photoelectron spectroscopy profilometry and scanning electron microscopy, respectively. Antifungal and antibacterial tests were conducted using the drop test method. Among the species examined, Candida albicans (MTCC-1637), and Staphylococcus aureus (NCIL-2122) showed complete colony formation inhibition after exposure for 4 h for the TiO2 loaded with 0.8 wt% Fe thin films. These results indicate that increasing the Fe concentration increased the antimicrobial activity, with complete inhibition of colony formation after 4 h exposure.
Palabras clave Sol-Gel Process; TiO2 Thin Films; Scanning Electron Microscopy; Antimicrobial Activity; X-Ray Photoelectron Spectroscopy; Fe Additive
Miembros de la Universidad Loyola

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