The effects of humic acid on the uptake and depuration of fullerene aqueous suspensions in two aquatic organisms
The effects of humic acid on the uptake and depuration of fullerene aqueous suspensions in two aquatic organisms
复制标题
腐植酸对两种水生生物富勒烯水悬浮液吸收和净化的影响
DOI：
10.1002/etc.2539
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发表时间：
2014-05
影响因子：
4.1
通讯作者：
Hu, Xialin
中科院分区：
文献类型：
--
作者：
Chen, Qiqing;Yin, Daqiang;Li, Jing;Hu, Xialin
研究了2种水生生物：大水蚤和斑马鱼对富勒烯水悬浮液（nC60）的吸收和净化。研究了腐植酸在水生环境中的作用，以阐明其可能的作用机制。两种生物对nC60的吸收都是浓度依赖性的，水蚤对nC60的最大吸收浓度（2268±158 mg/kg）比斑马鱼（222±30 mg/kg）高约1个数量级，这是因为水蚤的肠道体积比更大或吸收效率更高。腐植酸降低了水蚤和斑马鱼对nC60的吸收，这是由于nC60的大小效应和极性交替造成的。水蚤的净化模式快速，而斑马鱼的净化模式缓慢，这种差异很可能是生物之间不同的水交换频率造成的。净化48 h后，水蚤和斑马鱼的nC60含量分别约为20%和30%，这表明这两种水生生物仍然存在较大的nC60负荷，需要进一步研究营养转移的可能性。环境化学，2014;33(3):1090 - 1097。©2014 setac
The authors investigated the uptake and depuration of fullerene aqueous suspensions (nC60) in 2 aquatic organisms: Daphnia magna and zebrafish. The effects of humic acid were examined to elucidate its possible mechanisms in the aquatic environment. The uptake was concentration‐dependent in both organisms, and the maximum uptake concentration of nC60 in Daphnia (2268 ± 158 mg/kg) was approximately 1 order of magnitude higher than that in zebrafish (222 ± 30 mg/kg) because of the larger gut volume ratio to the mass of Daphnia or its high uptake efficiency. Humic acid reduced the uptake of nC60 in Daphnia and zebrafish as a result of the size effect and the polarity alternation of nC60. The depuration patterns were rapid for Daphnia and slow for zebrafish, and the differences were most likely the result of different water exchange frequencies between organisms. The remaining nC60 percentages were approximately 20% for Daphnia and 30% for zebrafish after 48‐h depuration, suggesting that a large nC60 burden still existed for both aquatic organisms and that there is a need for further studies on the potential for trophic transfer. Environ Toxicol Chem 2014;33:1090–1097. © 2014 SETAC
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影响因子：
4.1
作者：
Pakarinen, Kukka;Petersen, Elijah J.;Kukkonen, Jussi V. K.
通讯作者：
Kukkonen, Jussi V. K.
影响因子：
8.8
作者：
Xuezhi Zhang;Hongwen Sun;Zhiyan Zhang;Q. Niu;Yongsheng Chen;J. Crittenden
通讯作者：
Xuezhi Zhang;Hongwen Sun;Zhiyan Zhang;Q. Niu;Yongsheng Chen;J. Crittenden
影响因子：
46.9
作者：
Colvin, VL
通讯作者：
Colvin, VL
影响因子：
10.9
作者：
Oberdörster, E;Zhu, SQ;Haasch, ML
通讯作者：
Haasch, ML
DOI：
10.1139/f79-146
发表时间：
1979-01-01
期刊：
JOURNAL OF THE FISHERIES RESEARCH BOARD OF CANADA
影响因子：
--
作者：
VEITH, GD;DEFOE, DL;BERGSTEDT, BV
通讯作者：
BERGSTEDT, BV