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Water Science & Technology—WST Vol 57 No 10 pp 1533–1538 © IWA Publishing 2008 doi:10.2166/wst.2008.282

Implications and potential applications of bactericidal fullerene water suspensions: effect of nC60 concentration, exposure conditions and shelf life

D. Y. Lyon, D. A. Brown and P. J. J. Alvarez

Department of Civil and Environmental Engineering, Rice University, Houston, TX 77005, USA alvarez@rice.edu


ABSTRACT

Stable fullerene water suspensions (nC60) exhibited potent antibacterial activity to physiologically different bacteria in low-salts media over a wide range of exposure conditions. Antibacterial activity was observed in the presence or absence of light or oxygen, and increased with both exposure time and dose. The activity was also influenced by the nC60 storage conditions and by the age of the buckminsterfullerene (C60) used to make nC60. These results reflect the potential impact of nC60 on the health of aquatic ecosystems and suggest novel alternatives for disinfection and microbial control.

Keywords: bacteria; fullerenes; nanomaterial; nC60


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