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Research ArticleExperimental Studies

Lack of Genotoxicity of Carbon Nanotubes in a Pilot Study

KATALIN SZENDI and CSABA VARGA
Anticancer Research January 2008, 28 (1A) 349-352;
KATALIN SZENDI
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CSABA VARGA
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Abstract

Background: Different types of carbon nanotubes may represent toxic hazards due to their size distribution and massive surface area. They may adsorb other toxic agents that can consequently be transported into the body. The aim of the present study was to determine the possible genotoxicity of carbon nanotubes. Materials and Methods: In vivo bacterial mutagenicity and in vitro cytogenetic studies were performed on single-walled and multi-walled carbon nanotubes. Results: Oral exposure to nanotubes did not increase urinary mutagenicity in rats as studied using Ames test. No genotoxic effect was found in the in vitro micronucleus and sister chromatid exchange assays, either. Mitotic inhibition, a possible cytotoxic effect, however, was observed in the human lymphocyte cultures upon treatment with single-walled tubes. Conclusion: Due to the limited toxicity data on carbon nanotubes, these results may be particularly important for risk assessment purposes.

  • Single-walled carbon nanotubes
  • multi-walled carbon nanotubes
  • genotoxicity
  • Salmonella Ames test
  • cytogenetics
  • Received August 28, 2007.
  • Revision received December 3, 2007.
  • Accepted December 18, 2007.
  • Copyright© 2008 International Institute of Anticaner Research (Dr. John G. Delinassios), All rights reserved
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Anticancer Research: 28 (1A)
Anticancer Research
Vol. 28, Issue 1A
January-February 2008
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Lack of Genotoxicity of Carbon Nanotubes in a Pilot Study
KATALIN SZENDI, CSABA VARGA
Anticancer Research Jan 2008, 28 (1A) 349-352;

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Lack of Genotoxicity of Carbon Nanotubes in a Pilot Study
KATALIN SZENDI, CSABA VARGA
Anticancer Research Jan 2008, 28 (1A) 349-352;
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