Toxicity of copper nanopartical in Daphnia magna

Nguyen Trung Kien

Abstract


Nanotechnology has been widely and efficiently utilized in many areas due to unique physicochemical properties of this materials in comparison with their larger bulk counterparts. However, materials application process also potential risks to human health and the ecological environment. To evaluate the safety of nanomaterial in water environment, the experiments on aquatic organisms should be carried out to test the toxicological effects of nanomaterial. D. magna used as a model organism for testing the toxicity in the aquatic environment because of unique features such as easy to identify and easy to control with toxic substances, widely distributed, reproduce quickly in the form of virgin production in a short time. The aims of this study to evaluate the toxicity of copper nanomaterials copper (Cu) on the growth of crustacean organism D. magna. The material concentration selected to test toxicity was from 0 (control) to 5 ppm. After 24 h and 48 h of exposure, the highest survival rate of the D. magna 100% was found at a concentration of 0.01 ppm, whereas the copper nanomaterial concentrations of 1, 3 and 5 ppm caused the most growth inhibition of D. magna (100%). The 24h and 48h acute toxicity (LC50) of D. magna exposing to CuNP were 0.289 ppm and 0.1 ppm respectively.

Citation: Nguyen Trung Kien, Tran Thi Thu Huong, Duong Thi Thuy, 2017. Toxicity of copper nanopartical in Daphnia magna. Tap chi Sinh hoc, 38(2): xx-xxx. DOI:

*Corresponding author: nguyenkien.et@gmail.com

Received 29 December 2016, accepted 20 March 2017

 


Keywords


Daphnia magna, copper nanoparticle, toxicity, effects, growth inhibition

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Published by Vietnam Academy of Science and Technology