Analyses of surface area, porosity, silver release and antibacterial activity of amine-functionalized, silver-exchanged zeolite NaY
Silver (Ag)-based materials are widely used as effective antibacterial agents for a wide spectrum of bacteria. There is a great challenge to reduce the amount of Ag in Ag-based materials without limiting its antibacterial activity. Herein, the Ag-zeolite NaY (50% from its cation exchange capacity) w...
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Main Authors: | , , |
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Format: | Article |
Published: |
Elsevier Ltd
2017
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Subjects: | |
Online Access: | http://eprints.utm.my/id/eprint/75547/ https://www.scopus.com/inward/record.uri?eid=2-s2.0-85021652575&doi=10.1016%2fj.vacuum.2017.06.038&partnerID=40&md5=44d785379e82fd6bc42aac4bcffa3b2d |
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Institution: | Universiti Teknologi Malaysia |
Summary: | Silver (Ag)-based materials are widely used as effective antibacterial agents for a wide spectrum of bacteria. There is a great challenge to reduce the amount of Ag in Ag-based materials without limiting its antibacterial activity. Herein, the Ag-zeolite NaY (50% from its cation exchange capacity) was functionalized with 3-aminopropyltriethoxysilane to produce an amine functionalized, Ag-zeolite NaY. The results showed that the functionalization of Ag-zeolite NaY improved its antibacterial activity against a wide spectrum of bacteria (Escherichia coli ATCC11229 and Staphylococcus aureus ATCC6538), especially in solutions containing electrolyte (saline solution), although it has a lower surface area, pore volume and amount of Ag released compared to those of zeolite NaY and Ag-zeolite NaY. Thus, the functionalization of Ag-based materials is a promising approach to reducing the amount of Ag required in Ag-based material while improving its antibacterial activity. |
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