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Please use this identifier to cite or link to this item: http://hdl.handle.net/123456789/12628

Title: Antimicrobial action and efficiency of silver-loaded zeolite X
Authors: Kwakye-Awuah, Bright
Williams, C.
Kenward, M.A.
Keywords: antimicrobial
Escherichia coli
Pseudomonas aeruginosa
rate constant
Staphylococcus aureus
silver-loaded zeolite X
Issue Date: 2007
Publisher: Blackwell Publishing Ltd
Citation: B. Kwakye-Awuah et al, Antimicrobial action and efficiency of silver-loaded zeolite X, doi:10.1111/j.1365-2672.2007.03673.x
Abstract: Aims: To synthesize silver-loaded zeolite X and establish the extent to which it persist in its antimicrobial action against strains of Escherichia coli K12W-T, Pseudomonas aeruginosa NCIMB8295 and Staphylococcus aureus NCIMB6571. Methods and Results: The antimicrobial action and efficacy of silver-loaded zeolite X on Escherichia coli, Staphylococcus aureus and Pseudomonas aeruginosa were investigated. Zeolite X was synthesized and loaded with Ag+ by ion exchange. This resulted in 2Æ0% (w⁄w) loading of Ag+ in the zeolite framework and 5Æ8% (w⁄w) on the zeolite. Escherichia coli and Pseudomonas aeruginosa and Staphylococcus aureus suspended in tryptone soya broth were exposed to 0Æ15, 0Æ25, 0Æ5 or 1Æ0gl)1 of silver-loaded zeolite X for a period up to 24 h. No viable cells were detected for any of the three micro-organisms within 1 h. Silver-loaded zeolite X, retrieved three times from the first exposure cultures, was washed with de-ionized water and added to fresh bacterial suspensions. The results showed that the silver-loaded zeolite X retained its antimicrobial action. Conclusions: Silver-loaded zeolite X persisted in its antimicrobial action against all three micro-organisms. Significance and Impact of the study: The results are significant for the longevity of antimicrobial action of silver-loaded zeolite X.
Description: An article published by Blackwell Publishing Ltd and also available at doi:10.1111/j.1365-2672.2007.03673.x
URI: http://hdl.handle.net/123456789/12628
Appears in Collections:College of Science

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