Nano Archive

In vivo evaluation of carbon fullerene toxicity using embryonic zebrafish.

Usenko, Crystal Y and Harper, Stacey L. and Tanguay, Robert L (2007) In vivo evaluation of carbon fullerene toxicity using embryonic zebrafish. Carbon, 45 (9). pp. 1891-1898. ISSN 0008-6223

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There is a pressing need to develop rapid whole animal-based testing assays to assess the potential toxicity of engineered nanomaterials. To meet this challenge, the embryonic zebrafish model was employed to determine the toxicity of fullerenes. Embryonic zebrafish were exposed to graded concentrations of fullerenes [C(60), C(70), and C(60)(OH)(24)] during early embryogenesis and the resulting morphological and cellular responses were defined. Exposure to 200 mug/L C(60) and C(70) induced a significant increased in malformations, pericardial edema, and mortality; while the response to C(60)(OH)(24) exposure was less pronounced at concentrations an order of magnitude higher. Exposure to C(60) induced both necrotic and apoptotic cellular death throughout the embryo. While C(60)(OH)(24) induced an increase in embryonic cellular death, it did not induce apoptosis. Our findings concur with results obtained in other models indicating that C(60)(OH)(24) is significantly less toxic than C(60). These studies also suggest that that the embryonic zebrafish model is well-suited for the rapid assessment of nanomaterial toxicity.

Item Type:Article
Uncontrolled Keywords:Toxicity ; Fullerenes ; Carbon ;
Subjects:Biomedical Science > Nanotechnology for animal health
Biomedical Science > Nanotechnology for human health
NanoSafety > Environment, health and safety aspects of nanotechnology
ID Code:69
Deposited By:Lesley Tobin
Deposited On:11 Nov 2008 15:51
Last Modified:26 Jan 2009 16:37

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