Antimicrobial supported nanoparticles: Gold versus silver for the cases of Escherichia coli and Salmonella typhi

Roberto Guerra, Enrique Lima, Ariel Guzmán

Research output: Contribution to journalArticle

8 Citations (Scopus)

Abstract

Silver and gold nanoparticles were dispersed on TS-1 silicalite with a low titanium content. These materials were evaluated as biocides for Escherichia coli and Salmonella typhi. In the presence of TS-1, free of silver or gold, both bacteria use the silicalite's surface to reproduce rapidly. Ag- and Au-TS-1 were shown to be efficient for eliminating both E. coli and S. typhi present in a nutritive media. The efficiency of materials was related to their textural properties. In general, E. coli was eliminated faster than S. typhi. © 2012 Elsevier B.V. All rights reserved.
Original languageAmerican English
Pages (from-to)62-66
Number of pages55
JournalMicroporous and Mesoporous Materials
DOIs
StatePublished - 14 Jan 2013
Externally publishedYes

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salmonella
Salmonella typhi
Salmonella
Escherichia
Silver
Gold
Nanoparticles
Escherichia coli
silver
gold
nanoparticles
bacteria
Biocides
titanium
Disinfectants
Titanium
Bacteria
titanium silicide

Cite this

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Antimicrobial supported nanoparticles: Gold versus silver for the cases of Escherichia coli and Salmonella typhi. / Guerra, Roberto; Lima, Enrique; Guzmán, Ariel.

In: Microporous and Mesoporous Materials, 14.01.2013, p. 62-66.

Research output: Contribution to journalArticle

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AB - Silver and gold nanoparticles were dispersed on TS-1 silicalite with a low titanium content. These materials were evaluated as biocides for Escherichia coli and Salmonella typhi. In the presence of TS-1, free of silver or gold, both bacteria use the silicalite's surface to reproduce rapidly. Ag- and Au-TS-1 were shown to be efficient for eliminating both E. coli and S. typhi present in a nutritive media. The efficiency of materials was related to their textural properties. In general, E. coli was eliminated faster than S. typhi. © 2012 Elsevier B.V. All rights reserved.

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