Please use this identifier to cite or link to this item: https://apo.ansto.gov.au/dspace/handle/10238/6362
Title: Bacterial filtration using carbon nanotube/antibiotic buckypaper membranes
Authors: Sweetman, LJ
Alcock, LJ
McArthur, JD
Stewart, EM
Triani, G
Panhuis, M
Ralph, SF
Keywords: Carbon nanotubes
Escherichia coli
Isotherms
Surfactants
Membranes
Germicides
Issue Date: 8-Feb-2013
Publisher: Hindawi Publishing Corporation
Citation: Sweetman, L. J., Alcock, L. J., McArthur, J. D., Stewart, E. M., Triani, G., in het Panhuis, M., & Ralph, S. F. (2013). Bacterial Filtration Using Carbon Nanotube/Antibiotic Buckypaper Membranes. Journal of Nanomaterials. doi:10.1155/2013/781212
Abstract: The preparation of free-standing carbon nanotube “buckypaper” (BP) membranes consisting of either single-walled carbon nanotubes(SWNTs) or multi-walled carbon nanotubes (MWNTs), and the antibiotic ciprofloxacin (cipro), is reported. The electrical, mechanical and morphological properties of these membranes have been characterised and are compared to those of the corresponding containing the surfactant Triton X-100 (Trix). Analysis of scanning electron microscopic images of the surfaces of SWNT/cipro and SWNT/Trix (Trix = Triton X-100) buckypapers revealed that the diameter of their surface pores was significantly smaller than that of the corresponding materials prepared using MWNTs. Similarly, the average internal pore diameter of both SWNT buckypapers was found to be smaller than that of their MWNT counterparts, after analysis of binding isotherms derived from nitrogen adsorption/desorption measurements performed on the materials. All four buckypaper membranes examined were found to be >99% effective for removing Escherichia coli (E. coli) from aqueous suspensions. However, buckypapers containing ciprofloxacin outperformed their counterparts containing the surfactant. BothMWNT buckypapers were more effective at preventing passage of E. coli than their analogues containing SWNTs, while fluorescence microscopic examination of stained membrane surfaces demonstrated that buckypapers composed of SWNTs had greater bactericidal properties. © 2013, Luke J. Sweetman et al.
Gov't Doc #: 6205
URI: http://dx.doi.org/10.1155/2013/781212
http://apo.ansto.gov.au/dspace/handle/10238/6362
ISSN: 1687-4110
Appears in Collections:Journal Articles

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