Poster Open Access

Study of the toxicity and the antimicrobial activity of different forms of ZnO nanoparticles 2

Natalia Fernández-Pampín1 , Rocío Barros1, Sonia Martel Martín1 , Olavo Cardozo2,3, Andreas Stingl2, Patricia Farias2,4 , Alejandra García-Gómez5, Elisa Peña5 , Carlos Rumbo1, Juan Antonio Tamayo-Ramos 1

Zinc oxide nanoparticles (ZnO NPs) present multiple applications due to their
special physico-chemical and antimicrobial properties. Moreover, they are
inexpensive and less cytotoxic than other metal nanoparticles. The increasing
use of the ZnO NPs in different sectors has raised concerns about their
potential risks for the workers, consumers and the environment.

The posible toxic effects of different zinc oxide nanomaterials
(G-ZnO, ZnO and ZnO:Mn) on the respiratory system and their irritant
potential were evaluated.

The antimicrobial activity of G-ZnO, ZnO and ZnO:Mn was analysed against
Gram positive (methicillin-resistant S. aureus and vancomycin-resistant E.
faecium) and Gram negative (A. baumannii and P. aeruginosa) bacteria.

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