INACTIVACIÓN BACTERIANA POR EL EFECTO DE NANOPARTÍCULAS DE TiO2 AMORFO

Mónica Andrea Vargas; Jorge Enrique Rodríguez

doi:10.17533/udea.rcm.19335

Authors

Mónica Andrea Vargas Cauca University
Jorge Enrique Rodríguez Cauca University

DOI:

https://doi.org/10.17533/udea.rcm.19335

Keywords:

Amorphous, Bacterial inactivation, Escherichia coli, TiO2

Abstract

In this work, the sol-gel method to synthesize titanium oxide (TiO2) was used. With this process TiO2 of high chemical purity were obtained, and depending of thermal treatment it showed different crystalline phase. The XRD results of ceramics powders synthesized indicated that they were amorphous up to ∼ 350°C. The electronic microscopy (TEM and SEM) results showed that the particle size of amorphous – TiO2 was ~50nm. In assessing the bactericidal effect of TiO2particles amorphous phase on bacterial strains of Escherichia coli, when the oxide is activated by impinging UV radiation, good results were obtained in the first 30 minutes of exposure of the bacteria to oxide.

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Author Biographies

Mónica Andrea Vargas, Cauca University

Master in Engineering Physics, CYTEMAC Group, Department of Physics, Cauca University

Jorge Enrique Rodríguez, Cauca University

Doctor of Science, CYTEMAC Group, Physics Department, Cauca University .

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