Implications and potential applications of bactericidal fullerene water suspensions: effect of nC(60) concentration, exposure conditions and shelf life.

Stable fullerene water suspensions (nC(60)) 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 nC(60) storage conditions and by the age of the buckminsterfullerene (C(60)) used to make nC(60). These results reflect the potential impact of nC(60) on the health of aquatic ecosystems and suggest novel alternatives for disinfection and microbial control.

[1]  Z. Zainal,et al.  Bactericidal Activity of TiO2 Photocatalyst in Aqueous Media: Toward a Solar-Assisted Water Disinfection System. , 1994, Environmental science & technology.

[2]  D. Lyon,et al.  Antibacterial activity of fullerene water suspensions: effects of preparation method and particle size. , 2006, Environmental science & technology.

[3]  Delina Y Lyon,et al.  Bacterial cell association and antimicrobial activity of a C60 water suspension , 2005, Environmental toxicology and chemistry.

[4]  M. Elimelech,et al.  Colloid deposition dynamics in flow-through porous media: role of electrolyte concentration. , 1995, Environmental science & technology.

[5]  M. Wiesner,et al.  Aggregation and Deposition Characteristics of Fullerene Nanoparticles in Aqueous Systems , 2005 .

[6]  M. Engelhard,et al.  Functionalized TiO2 nanoparticles for use for in situ anion immobilization. , 2005, Environmental science & technology.

[7]  M. Otaki,et al.  Aqueous microorganisms inactivation by photocatalytic reaction. , 2000 .

[8]  J. Ganske,et al.  Characterization of Fullerene Materials and Their Oxidative Stability Using Diffuse Reflectance Infrared Fourier Transform Spectroscopy , 1995 .

[9]  K. Ausman,et al.  C60 in water: nanocrystal formation and microbial response. , 2005, Environmental science & technology.

[10]  Wonyong Choi,et al.  Photocatalytic degradation of N-nitrosodimethylamine: mechanism, product distribution, and TiO2 surface modification. , 2005, Environmental science & technology.

[11]  Peter Adriaens,et al.  Carbon tetrachloride transformation on the surface of nanoscale biogenic magnetite particles. , 2004, Environmental science & technology.

[12]  G. C. Miller,et al.  Photocatalytic inactivation of coliform bacteria and viruses in secondary wastewater effluent , 1995 .

[13]  Loring Nies,et al.  Impact of fullerene (C60) on a soil microbial community. , 2007, Environmental science & technology.

[14]  Cesar Pulgarin,et al.  Effect of pH, inorganic ions, organic matter and H2O2 on E. coli K12 photocatalytic inactivation by TiO2: Implications in solar water disinfection , 2004 .

[15]  A. D. Russell,et al.  Antiseptics and Disinfectants: Activity, Action, and Resistance , 1999, Clinical Microbiology Reviews.

[16]  Janet G Hering,et al.  TiO2-photocatalyzed As(II) oxidation in aqueous suspensions: reaction kinetics and effects of adsorption. , 2005, Environmental science & technology.

[17]  EÄ H,et al.  Laboratory Assessment of the Mobility of Nanomaterials in Porous Media , 2022 .