Abstract
Nano-Fe2O3 (magnetic) and nano-Al2O3 are increasingly used in biomedical fields for cellular labeling and drug delivery, and in the industry as catalysts. However, they may also serve as carriers of toxic contaminants and negatively impact the environment and human health. in the present study, Ceriodaphnia dubia was used to assess the toxicity of these nanoparticles (NPs) with and without the presence of background arsenic(V) (As[V]). the results showed that although these NPs alone did not exhibit significant toxicity in the experimental concentration range, they could significantly enhance the toxicity of As(V). the accumulation of As(V) on nano-Fe2O3 (m) and nano-Al2O3, as well as the uptake of these NPs in C. dubia, were verified. an inverse relationship between the median lethal concentration (LC50) of the soluble As(V) and the accumulation of NPs in C. dubia was developed. Therefore, the uptake of As(V)-loaded NPs in C. dubia played a key role in enhancing As(V) toxicity. © 2012 SETAC.
Recommended Citation
J. Hu et al., "Quantifying the Effect of Nanoparticles on As(V) Ecotoxicity Exemplified by Nano-Fe2O3 (magnetic) and Nano-Al2O3," Environmental Toxicology and Chemistry, vol. 31, no. 12, pp. 2870 - 2876, Wiley, Dec 2012.
The definitive version is available at https://doi.org/10.1002/etc.2013
Department(s)
Civil, Architectural and Environmental Engineering
Publication Status
Full Access
Keywords and Phrases
Arsenic; Ceriodaphnia dubia; Nano-Al O 2 3; Nano-Fe O (m) 2 3; Synergistic effect
International Standard Serial Number (ISSN)
1552-8618; 0730-7268
Document Type
Article - Journal
Document Version
Citation
File Type
text
Language(s)
English
Rights
© 2024 Wiley, All rights reserved.
Publication Date
01 Dec 2012
PubMed ID
22997023