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Inactivation of bacteriophages via photosensitization of fullerol nanoparticles.

Publication ,  Journal Article
Badireddy, AR; Hotze, EM; Chellam, S; Alvarez, P; Wiesner, MR
Published in: Environmental science & technology
September 2007

The production of two reactive oxygen species through UV photosensitization of polyhydroxylated fullerene (fullerol) is shown to enhance viral inactivation rates. The production of both singlet oxygen and superoxide by fullerol in the presence of UV light is confirmed via two unique methods: electron paramagnetic resonance and reduction of nitro blue tetrazolium. These findings build on previous results both in the area of fullerene photosensitization and in the area of fullerene impact on microfauna. Results showed thatthe first-order MS2 bacteriophage inactivation rate nearly doubled due to the presence of singlet oxygen and increased by 125% due to singlet oxygen and superoxide as compared to UVA illumination alone. When fullerol and NADH are present in solution, dark inactivation of viruses occurs at nearly the same rate as that produced by UVA illumination without nanoparticles. These results suggest a potential for fullerenes to impact virus populations in both natural and engineered systems ranging from surface waters to disinfection technologies for water and wastewater treatment.

Duke Scholars

Published In

Environmental science & technology

DOI

EISSN

1520-5851

ISSN

0013-936X

Publication Date

September 2007

Volume

41

Issue

18

Start / End Page

6627 / 6632

Related Subject Headings

  • Water Purification
  • Ultraviolet Rays
  • Superoxides
  • Singlet Oxygen
  • Reactive Oxygen Species
  • Nanoparticles
  • Light
  • Fullerenes
  • Environmental Sciences
  • Electron Spin Resonance Spectroscopy
 

Citation

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Badireddy, A. R., Hotze, E. M., Chellam, S., Alvarez, P., & Wiesner, M. R. (2007). Inactivation of bacteriophages via photosensitization of fullerol nanoparticles. Environmental Science & Technology, 41(18), 6627–6632. https://doi.org/10.1021/es0708215
Badireddy, Appala Raju, Ernest M. Hotze, Shankar Chellam, Pedro Alvarez, and Mark R. Wiesner. “Inactivation of bacteriophages via photosensitization of fullerol nanoparticles.Environmental Science & Technology 41, no. 18 (September 2007): 6627–32. https://doi.org/10.1021/es0708215.
Badireddy AR, Hotze EM, Chellam S, Alvarez P, Wiesner MR. Inactivation of bacteriophages via photosensitization of fullerol nanoparticles. Environmental science & technology. 2007 Sep;41(18):6627–32.
Badireddy, Appala Raju, et al. “Inactivation of bacteriophages via photosensitization of fullerol nanoparticles.Environmental Science & Technology, vol. 41, no. 18, Sept. 2007, pp. 6627–32. Epmc, doi:10.1021/es0708215.
Badireddy AR, Hotze EM, Chellam S, Alvarez P, Wiesner MR. Inactivation of bacteriophages via photosensitization of fullerol nanoparticles. Environmental science & technology. 2007 Sep;41(18):6627–6632.
Journal cover image

Published In

Environmental science & technology

DOI

EISSN

1520-5851

ISSN

0013-936X

Publication Date

September 2007

Volume

41

Issue

18

Start / End Page

6627 / 6632

Related Subject Headings

  • Water Purification
  • Ultraviolet Rays
  • Superoxides
  • Singlet Oxygen
  • Reactive Oxygen Species
  • Nanoparticles
  • Light
  • Fullerenes
  • Environmental Sciences
  • Electron Spin Resonance Spectroscopy