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Title: | Toxicity of Titanium Dioxide Nanoparticles to Tadpoles of Asian Common Toad (Duttaphrynus melanostictus) Following Short Term and Chronic Exposures |
Authors: | Ruvinda, K. M. Sudesh Pathiratne, Asoka |
Keywords: | Nanotoxicity · NanoTiO2 · Amphibian larvae · Histopathology · Acetylcholinesterase |
Issue Date: | 2021 |
Publisher: | Bulletin of Environmental Contamination and Toxicology |
Citation: | Ruvinda, K.M.S., Pathiratne, A. Toxicity of Titanium Dioxide Nanoparticles to Tadpoles of Asian Common Toad (Duttaphrynus melanostictus) Following Short Term and Chronic Exposures. Bull Environ Contam Toxicol 107, 848–854 (2021). https://doi.org/10.1007/s00128-021-03352-y |
Abstract: | Nanotoxicity data for amphibians are limited compared to other taxonomic groups. The present study assessed toxicity of titanium dioxide nanoparticles ( nanoTiO2, anatase form, particle size < 25 nm) on tadpoles of Duttaphrynus melanostictus after short term and chronic exposures. Exposure to nanoTiO2 (≤ 100 mg/L) for 96 h had no significant effect on survival but upon transfer to nanoTiO2 free water for another 21 days, survival of the tadpoles pre-exposed to nanoTiO2 was greatly reduced and their development was delayed. Chronic exposure to nanoTiO2 (0.1 to 10 mg/L) for 14 days had no significant effects on acetylcholinesterase activities but induced mortalities (up to 40%) and histological alterations in the intestine and liver tissues. The results indicate that release of nanoTiO2 to aquatic ecosystems could pose negative impacts to amphibian populations. |
URI: | http://repository.kln.ac.lk/handle/123456789/25288 |
Appears in Collections: | Zoology |
Files in This Item:
File | Description | Size | Format | |
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Toxicity of Titanium Dioxide Nanoparticles to Tadpoles of Asian.pdf | 1.17 MB | Adobe PDF | View/Open |
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