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Antimicrobial effect of PLA and PLA-NPs films composites containing Ag NPs(PLA-Ag), ZnO (PLA-ZnO) and TiO2 NPs(PLA-TiO2) with 0.5, 1.0 and 2.5 wt% of NPs. Percentage of inhibition of (a) E.coli and (b) S.aureus were evaluated after 6 h of incubation of bacteria.
