Green Algae as Carriers Enhance the Bioavailability of C-14-Labeled Few-Layer Graphene to Freshwater Snails

CORC > 生态环境研究中心 > 中国科学院生态环境研究中心 > 环境化学与生态毒理学国家重点实验室

	Green Algae as Carriers Enhance the Bioavailability of C-14-Labeled Few-Layer Graphene to Freshwater Snails
	Su, Yu; Tong, Xin; Huang, Chi; Chen, Jiani; Liu, Sijin; Gao, Shixiang; Mao, Liang; Xing, Baoshan
刊名	ENVIRONMENTAL SCIENCE & TECHNOLOGY
	2018-02-06
卷号	52 期号:3 页码:1591-1601
ISSN号	0013-936X
文献子类	Article
英文摘要	The waterborne exposure of graphene to ecological receptors has received much attention; however, little is known about the contribution of food to the bioaccumulation potential of graphene. We investigated the effect of algal food on the uptake and distribution of C-14-labeled few-layer graphene (FLG) in freshwater snails, a favorite food for Asian people. In a water-only system, FLG (similar to 158 mu g/L) was ingested by and accumulated in the snails. Adding algae to the water significantly enhanced FLG accumulation in the snails, with a bioaccumulation factor of 2.7 (48 h exposure). Approximately 92.5% of the accumulated FLG was retained in the intestine; in particular, the accumulated FLG in the intestine was able to pass through the intestinal wall and enter the intestinal epithelial cells. Of them, 1.3% was subsequently transferred/internalized to the liver/hepatocytes, a process that was not observed in the absence of the algae. Characterizations data further suggested that both of the extra- and intracellular FLG in the algae (the algae-bound fraction was 30.2%) significantly contributed to the bioaccumulation. Our results provide the first evidence that algae as carriers enhanced FLG bioavailability to the snails, as well as the potential of FLG exposure to human beings through consuming the contaminated snails.
内容类型	期刊论文
源URL	[http://ir.rcees.ac.cn/handle/311016/40951]
专题	生态环境研究中心_环境化学与生态毒理学国家重点实验室
推荐引用方式 GB/T 7714	Su, Yu,Tong, Xin,Huang, Chi,et al. Green Algae as Carriers Enhance the Bioavailability of C-14-Labeled Few-Layer Graphene to Freshwater Snails[J]. ENVIRONMENTAL SCIENCE & TECHNOLOGY,2018,52(3):1591-1601.
APA	Su, Yu.,Tong, Xin.,Huang, Chi.,Chen, Jiani.,Liu, Sijin.,...&Xing, Baoshan.(2018).Green Algae as Carriers Enhance the Bioavailability of C-14-Labeled Few-Layer Graphene to Freshwater Snails.ENVIRONMENTAL SCIENCE & TECHNOLOGY,52(3),1591-1601.
MLA	Su, Yu,et al."Green Algae as Carriers Enhance the Bioavailability of C-14-Labeled Few-Layer Graphene to Freshwater Snails".ENVIRONMENTAL SCIENCE & TECHNOLOGY 52.3(2018):1591-1601.