Table of Contents
Journal of Nanoscience
Volume 2014, Article ID 419382, 8 pages
Research Article

The Effect of DNA and Sodium Cholate Dispersed Single-Walled Carbon Nanotubes on the Green Algae Chlamydomonas reinhardtii

1Department of Basic Pharmaceutical Sciences, West Virginia University, Morgantown, P.O. Box 9530, Morgantown, WV 26506, USA
2Molecular Pharmacology & Chemistry Program, Memorial Sloan Kettering Cancer Center, New York, NY 10065, USA
3Department of Biology, West Virginia University, Morgantown, WV 26506, USA
4Department of Freshman Engineering, West Virginia University, Morgantown, WV 26506, USA

Received 30 June 2014; Accepted 9 August 2014; Published 26 August 2014

Academic Editor: Kostya (Ken) Ostrikov

Copyright © 2014 Ryan M. Williams et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.


Increasing use of single-walled carbon nanotubes (SWCNTs) will lead to their increased release into the environment. Previous work has shown negative effects of SWCNT on growth and survival of model organisms. The aim of the current study was to determine the effect of SWCNT well-dispersed by either DNA or sodium cholate (SC) on the unicellular green algae Chlamydomonas reinhardtii in stagnant water conditions. Growth measurements were taken up to ten days for algae treated with varied levels of DNA:SWCNT or SC:SWCNT or controls, and chlorophyll content after 10 days was determined. Results show no effect on either growth or chlorophyll content of algae at any concentration or duration. This is in contradiction to prior work showing toxicity of SWCNT to environmental model organisms.