Journal of Clinical Toxicology
Open Access
ISSN: 2161-0495
+44 1478 350008
ISSN: 2161-0495
+44 1478 350008
Qing Huang and Hong Zhang
Scientific Tracks Abstracts: J Clin Toxicol
The increasing industrial use of manufactured nano materials (MNMs) during the last decades poses a potential threat to the
environment and in particular to organisms living in the aquatic environment. To evaluate the ecological and human health risks
of MNMs released to the environment properly, it is necessary to investigate the involved physicochemical transformations of MNMs
under aging process in the environment and their toxicity to hydrophytes such as green algae. In the present study, the physicochemical
changes of zinc oxide nanoparticles in aqueous media were characterized by SEM, TEM and XRD, and analyzed quantitatively by
means of spectroscopic tools such as Raman and FTIR spectroscopy. The toxicity of zinc oxide nanoparticles under aging process in
aqueous media was investigated in green algae Chlorella vulgaris. Our results confirmed the new compounds transformed in aging
process which are identified as hydrozincite and zinc hydroxide, and revealed the lower toxicity of aged zinc oxide nanoparticles
which is ascribed to the transformations of the aged zinc oxide nano particles. This work has therefore demonstrated the importance
of consideration of aging process for evaluation of the toxicity of MNMs in aquatic surroundings.
Qing Huang has completed his PhD from University of Goettingen in Germany. He is now a Professor in biophysics, the Director of the Department of Physical Biology, Hefei
Institute of Physical Science, Chinese Academy of Sciences. He has published more than 80 papers in reputed journals such as J. Am. Chem. Soc., Adv. Mater., Adv. Funt. Mater.,
Chem. Commun., J. Hazard. Mater., Environ. Sci. Tech., Water Res. and etc. He has served as the reviewers for many international journals, and an expert member for Chinese
National Natural Science Foundation.