Antibacterial property optimization of an ethylene-co-vinyl acetate copolymer (EVA) on the bacterium Escherychia coli (E. Coli)

Abstract

In the present work, the effect of the ultrasonic parameters

on the deagglomeration and dispersion of the TiO2

nanoparticles in a polymer matrix of EVA (ethylene-co-vinyl

acetate copolymer) was systematically studied. The ultrasonic

parameters studied were amplitude, pulse and time. The

antibacterial property of the composite material against

the bacterium Escherichia coli (E.coli) was also studied. A

significant statistical effect of the ultrasound parameters on

the deagglomeration and dispersion of the TiO2 nanoparticles

was found and the amplitude, pulse and time levels of the

ultrasonic treatment which maximize the percentage of growth

inhibition of the studied bacteria were established.