作者: Jiafan Wang , Mike Wages , Shuangying Yu , Jonathan D. Maul , Greg Mayer
DOI: 10.1002/ETC.2540
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摘要: Fullerene (C60), with its unique physical properties and nanometer size, has been mass-produced for many applications in recent decades. The increased likelihood of direct release into the environment raised interest understanding both environmental fate corresponding biological effects fullerenes to living organisms. Because few studies have emphasized fullerene uptake resulting biochemical responses by organisms, a toxicity screening test 28-d bioaccumulation Lumbriculus variegatus were performed. No mortality was observed range 0.05 mg C60/kg dry sediment 11.33 mg C60/kg sediment. A biota-sediment accumulation factor micron-sized agglomerates (µ-C60) 0.032 ± 0.008 at day 28, which is relatively low compared pyrene (1.62 ± 0.22). Catalase (CAT) activity, an oxidative stress indicator, elevated significantly on 14 L. exposed µ-C60 (p = 0.034). This peak CAT activity corresponded highest body residues present study, 199 ± 80 µg C60/kg weight Additionally, smaller C60 agglomerate size potential variegatus. relationship between residue followed linear regression. All results suggest that lower than but higher induce Environ Toxicol Chem 2014;33:1135–1141. © 2014 SETAC