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Evidence of free radical and antioxidant activity in Spirodela exposed to metallic and metal oxide nanoparticles: potential for protein and lipid damage

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dc.contributor.author Thwala, Melusi
dc.contributor.author Musee, N
dc.contributor.author Wepener, V
dc.contributor.author Nota, N
dc.date.accessioned 2013-01-28T07:55:07Z
dc.date.available 2013-01-28T07:55:07Z
dc.date.issued 2012-04
dc.identifier.citation Thwala, M., Musee, N., Wepener, V., and Nota, N. 2012. Evidence of free radical and antioxidant activity in Spirodela exposed to metallic and metal oxide nanoparticles: potential for protein and lipid damage. The 4th International Conference on Nanoscience and Nanotechnology (Nano Africa 2012), University of the Free State, Bloemfontein, South Africa, 1-4 April 2012 en_US
dc.identifier.uri http://hdl.handle.net/10204/6432
dc.description The 4th International Conference on Nanoscience and Nanotechnology (Nano Africa 2012), University of the Free State, Bloemfontein, South Africa, 1-4 April 2012 en_US
dc.description.abstract The toxicity of engineered nanoparticles towards macro algae and higher aquatic plants has not been well studied. This knowledge gap challenges the development of nano risk assessment towards water ecosystems. In this study, we investigated free radical activity and oxidation defence activity on Spirodela after exposure to ZnO and Ag ENPs over 96 hours (acute) and 14 days (chronic). Plant specimens were exposed to nanoparricles with concentrations ranging from 0.01-1000 mg/L, and thereafter the quantities of free radicals (H202, total ROS/RNS), antioxidant activity (catalase, superoxide disrnutasc, and total antioxidam capacity) were analyzed. Oxidative stress has been suggested as a significant route of toxicity induction by engineered nanomaterials (ENPs) to biological media. en_US
dc.language.iso en en_US
dc.relation.ispartofseries Workflow;10153
dc.subject Spirodela en_US
dc.subject Nanoparticles en_US
dc.subject Nanotechnology en_US
dc.subject Engineered nanomaterials en_US
dc.subject ENPs en_US
dc.title Evidence of free radical and antioxidant activity in Spirodela exposed to metallic and metal oxide nanoparticles: potential for protein and lipid damage en_US
dc.type Conference Presentation en_US
dc.identifier.apacitation Thwala, M., Musee, N., Wepener, V., & Nota, N. (2012). Evidence of free radical and antioxidant activity in Spirodela exposed to metallic and metal oxide nanoparticles: potential for protein and lipid damage. http://hdl.handle.net/10204/6432 en_ZA
dc.identifier.chicagocitation Thwala, Melusi, N Musee, V Wepener, and N Nota. "Evidence of free radical and antioxidant activity in Spirodela exposed to metallic and metal oxide nanoparticles: potential for protein and lipid damage." (2012): http://hdl.handle.net/10204/6432 en_ZA
dc.identifier.vancouvercitation Thwala M, Musee N, Wepener V, Nota N, Evidence of free radical and antioxidant activity in Spirodela exposed to metallic and metal oxide nanoparticles: potential for protein and lipid damage; 2012. http://hdl.handle.net/10204/6432 . en_ZA
dc.identifier.ris TY - Conference Presentation AU - Thwala, Melusi AU - Musee, N AU - Wepener, V AU - Nota, N AB - The toxicity of engineered nanoparticles towards macro algae and higher aquatic plants has not been well studied. This knowledge gap challenges the development of nano risk assessment towards water ecosystems. In this study, we investigated free radical activity and oxidation defence activity on Spirodela after exposure to ZnO and Ag ENPs over 96 hours (acute) and 14 days (chronic). Plant specimens were exposed to nanoparricles with concentrations ranging from 0.01-1000 mg/L, and thereafter the quantities of free radicals (H202, total ROS/RNS), antioxidant activity (catalase, superoxide disrnutasc, and total antioxidam capacity) were analyzed. Oxidative stress has been suggested as a significant route of toxicity induction by engineered nanomaterials (ENPs) to biological media. DA - 2012-04 DB - ResearchSpace DP - CSIR KW - Spirodela KW - Nanoparticles KW - Nanotechnology KW - Engineered nanomaterials KW - ENPs LK - https://researchspace.csir.co.za PY - 2012 T1 - Evidence of free radical and antioxidant activity in Spirodela exposed to metallic and metal oxide nanoparticles: potential for protein and lipid damage TI - Evidence of free radical and antioxidant activity in Spirodela exposed to metallic and metal oxide nanoparticles: potential for protein and lipid damage UR - http://hdl.handle.net/10204/6432 ER - en_ZA


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