Hybrid antibacterial fabrics with extremely high aspect ratio Ag/AgTCNQ nanowires

Davoudi, Zahra Mohammad, Kandjani, Ahmad Esmaielzadeh, Bhatt, Anand I., Kyratzis, Ilias L., O'Mullane, Anthony P., & Bansal, Vipul (2014) Hybrid antibacterial fabrics with extremely high aspect ratio Ag/AgTCNQ nanowires. Advanced Functional Materials, 24(8), pp. 1047-1053.

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This study reports the synthesis of extremely high aspect ratios (>3000) organic semiconductor nanowires of Ag–tetracyanoquinodimethane (AgTCNQ) on the surface of a flexible Ag fabric for the first time. These one-dimensional (1D) hybrid Ag/AgTCNQ nanostructures are attained by a facile, solution-based spontaneous reaction involving immersion of Ag fabrics in an acetonitrile solution of TCNQ. Further, it is discovered that these AgTCNQ nanowires show outstanding antibacterial performance against both Gram negative and Gram positive bacteria, which outperforms that of pristine Ag. The outcomes of this study also reflect upon a fundamentally important aspect that the antimicrobial performance of Ag-based nanomaterials may not necessarily be solely due to the amount of Ag+ ions leached from these nanomaterials, but that the nanomaterial itself may also play a direct role in the antimicrobial action. Notably, the applications of metal-organic semiconducting charge transfer complexes of metal-7,7,8,8-tetracyanoquinodimethane (TCNQ) have been predominantly restricted to electronic applications, except from our recent reports on their (photo)catalytic potential and the current case on antimicrobial prospects. This report on growth of these metal-TCNQ complexes on a fabric not only widens the window of these interesting materials for new biological applications, it also opens the possibilities for developing large-area flexible electronic devices by growing a range of metal-organic semiconducting materials directly on a fabric surface.

Impact and interest:

29 citations in Scopus
30 citations in Web of Science®
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ID Code: 64349
Item Type: Journal Article
Refereed: Yes
Keywords: silver, AgTCNQ, antimicrobial activity, charge transfer, nanowires, antibacterials
DOI: 10.1002/adfm.201302368
ISSN: 1616-3028
Divisions: Current > Schools > School of Chemistry, Physics & Mechanical Engineering
Current > QUT Faculties and Divisions > Science & Engineering Faculty
Deposited On: 18 Nov 2013 05:09
Last Modified: 14 Apr 2014 03:40

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