<abstract xmlns="http://www.w3.org/1999/xhtml">Zeolites are nanoporous alumina silicates in a framework with cations, exhibiting ion-exchange properties with metal ions making them possible antimicrobial materials. The aim of this study was to evaluate the antimicrobial activity of ion-exchanged zeolites and the toxic potential of these materials. Zeolite-Co2+ and Li+ exhibited the most effective inhibition on <italic>Staphylococcus aureus</italic> growth than in other microorganisms (<italic>Escherichia coli</italic> and <italic>Pseudomonas aeroginosa</italic>) in low concentrations. Zeolite-Cu2+ presented higher zone of inhibition when tested against <italic>Candida albicans</italic>, while Zeolite-Zn2+ showed similar effectiveness among all the microorganisms. When ion-exchanged zeolites were used in effective concentrations to achieve antimicrobial activity, no alterations against bioindicators organisms as <italic>Artemia</italic> sp. and <italic>L. sativa</italic> were found and, in addition, they have non-significant result in terms of DNA cleavage activity. Zeolites have advantage of releasing slowly the metals loaded and this characteristic can to be considered promising as potential antimicrobial materials in concentrations safe for use.</abstract>

Zeolites are nanoporous alumina silicates in a framework with cations, exhibiting ion-exchange properties with metal ions making them possible antimicrobial materials. The aim of this study was to evaluate the antimicrobial activity of ion-exchanged zeolites and the toxic potential of these materials. Zeolite-Co2+ and Li+ exhibited the most effective inhibition on Staphylococcus aureus growth than in other microorganisms (Escherichia coli and Pseudomonas aeroginosa) in low concentrations. Zeolite-Cu2+ presented higher zone of inhibition when tested against Candida albicans, while Zeolite-Zn2+ showed similar effectiveness among all the microorganisms. When ion-exchanged zeolites were used in effective concentrations to achieve antimicrobial activity, no alterations against bioindicators organisms as Artemia sp. and L. sativa were found and, in addition, they have non-significant result in terms of DNA cleavage activity. Zeolites have advantage of releasing slowly the metals loaded and this characteristic can to be considered promising as potential antimicrobial materials in concentrations safe for use.

Antimicrobial materials properties based on ion-exchange 4A zeolite derivatives

Universidade do Extremo Sul Catarinense – Rodovia Governador Jorge Lacerda

Centro de Ciências, Tecnologias e Saúde; Departamento de Energia e Sustentabilidade

Polish Journal of Chemical Technology

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.

{"article-title":"Antimicrobial materials properties based on ion-exchange 4A zeolite derivatives"}

Zeolites are nanoporous alumina silicates in a framework with cations, exhibiting ion-exchange properties with metal ions making them possible antimicrobial...

Antimicrobial materials properties based on ion-exchange 4A zeolite derivatives

Published Online: Dec 31, 2019

Page range: 31 - 39

DOI: https://doi.org/10.2478/pjct-2019-0036

Keywords
antimicrobial, zeolite, ion-exchange, bacteria, yeast

© 2019 Willian A. Cardoso et al., published by Sciendo

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.

Antimicrobial materials properties based on ion-exchange 4A zeolite derivatives

Published Online: Dec 31, 2019

Page range: 31 - 39

DOI: https://doi.org/10.2478/pjct-2019-0036

Keywordsantimicrobial, zeolite, ion-exchange, bacteria, yeast

© 2019 Willian A. Cardoso et al., published by Sciendo

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.

Keywords
antimicrobial, zeolite, ion-exchange, bacteria, yeast