title: Graphene oxide alleviates the ecotoxicity of copper on the freshwater microalga Scenedesmus obliquus.
abstract: The extensive industrial application of graphene oxide (GO), has increased its exposure risk to various aquatic organisms and its potential to affect the toxicity of other environmental pollutants. In this study, we investigated the combined toxicity of GO and copper on the freshwater microalga Scenedesmus obliquus, using the MIXTOX model. The effects of low concentration (1mg/L) exposure to GO were investigated with environmentally relevant concentrations of copper by using a 12-d subacute toxicity test, with pre- and post-GO treatment. Results showed that there were significant antagonistic effects between GO and copper on S. obliquus, and GO was found to reduce ecotoxicity of copper even at low and environmentally relevant concentrations (1mg/L).
authors.affiliation: Shandong Provincial Key Laboratory of Water and Soil Conservation & Environmental Protection, Linyi University, Middle Part of Shuangling Road, Linyi 276000, Shandong Province, PR China.
authors.forename: Changwei
authors.initials: C
authors.lastname: Hu
authors.affiliation: Linyi No. 4 High School, The Junction of Ji'nan Road and Menghe Road, Linyi 276005, Shandong Province, PR China.
authors.forename: Naitao
authors.initials: N
authors.lastname: Hu
authors.affiliation: Shandong Provincial Key Laboratory of Water and Soil Conservation & Environmental Protection, Linyi University, Middle Part of Shuangling Road, Linyi 276000, Shandong Province, PR China.
authors.forename: Xiuling
authors.initials: X
authors.lastname: Li
authors.affiliation: College of Biological Chemical Science and Engineering, Jiaxing University, Jiaxing 314001, PR China. Electronic address: zyjun2007@126.com.
authors.forename: Yongjun
authors.initials: Y
authors.lastname: Zhao
mesh_terms: D059001:Aquatic Organisms / Q000187:drug effects; D003300:Copper / Q000633:toxicity*; D005618:Fresh Water; D006108:Graphite / Q000494:pharmacology*; D058086:Microalgae / Q000187:drug effects; D010087:Oxides / Q000633:toxicity; D044444:Scenedesmus / Q000187:drug effects*; D014131:Trace Elements / Q000633:toxicity*; D014874:Water Pollutants, Chemical / Q000633:toxicity
chemical_list: D010087:Oxides; D014131:Trace Elements; D014874:Water Pollutants, Chemical; D006108:Graphite; D003300:Copper
keywords: Combined toxicity; Copper; Graphene oxide; Microalga