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Calixarene assisted rapid synthesis of silver-graphene nanocomposites with enhanced antibacterial activity

Kellici, Suela, Acord, John, Vaughn, Arni, Power, Nicholas P., Morgan, David John ORCID:, Heil, Tobias, Facq, Sébastien P. and Lampronti, Giulio I. 2016. Calixarene assisted rapid synthesis of silver-graphene nanocomposites with enhanced antibacterial activity. ACS Applied Materials & Interfaces 8 (29) , pp. 19038-19046. 10.1021/acsami.6b06052

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Demonstrated herein is a single rapid approach employed for synthesis of Ag–graphene nanocomposites, with excellent antibacterial properties and low cytotoxicity, by utilizing a continuous hydrothermal flow synthesis (CHFS) process in combination with p-hexasulfonic acid calix[6]arene (SCX6) as an effective particle stabilizer. The nanocomposites showed high activity against E. coli (Gram-negative) and S. aureus (Gram-positive) bacteria. The materials were characterized using a range of techniques including transmission electron microscopy (TEM), X-ray photoelectron spectroscopy (XPS), Raman spectroscopy, UV–vis spectrophotometry, FT-IR, and X-ray powder diffraction (XRD). This rapid, single step synthetic approach not only provides a facile means of enabling and controlling graphene reduction (under alkaline conditions) but also offers an optimal route for homogeneously producing and depositing highly crystalline Ag nanostructures into reduced graphene oxide substrate.

Item Type: Article
Date Type: Published Online
Status: Published
Schools: Cardiff Catalysis Institute (CCI)
Subjects: Q Science > QD Chemistry
Publisher: American Chemical Society
ISSN: 1944-8244
Date of First Compliant Deposit: 9 September 2016
Date of Acceptance: 5 July 2016
Last Modified: 07 Nov 2023 13:09

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