ACUTE TOXICITY OF A MIXTURE OF COPPER AND SINGLE-WALLED CARBON NANOTUBES TO DAPHNIA MAGNA

被引：58

作者：

Kim, Ki T. ^{[1
]}

Klaine, Stephen J. ^{[2
,3
]}

Lin, Sijie ^{[3
,5
]}

Ke, Pu C. ^{[3
,4
]}

Kim, Sang D. ^{[1
]}

机构：

[1] Gwangju Inst Sci & Technol, Dept Environm Sci & Engn, Kwangju 500712, South Korea

[2] Clemson Univ, Dept Biol Sci, Clemson, SC 29634 USA

[3] Clemson Univ, Inst Environm Toxicol, Pendleton, SC 29670 USA

[4] Clemson Univ, Dept Phys & Astron, Clemson, SC 29634 USA

[5] Clemson Univ, Dept Mat Sci, Clemson, SC 29634 USA

来源：

ENVIRONMENTAL TOXICOLOGY AND CHEMISTRY | 2010年 / 29卷 / 01期

基金：

美国国家科学基金会;

关键词：

Mixed toxicity; Surface modification; Single-walled carbon nanotubes; Copper; Daphnia magna; BEHAVIOR;

D O I：

10.1002/etc.8

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

Nanomaterials released into the environment will interact with many materials including other contaminants. This may influence bioavailability and fate of both the nanoparticles and the other contaminants. The present study examined the effect of a combination of soluble copper and surface-modified single-walled carbon nanotubes (SWNTs) on Daphnia magna. Lysophosphatidylcholine (LPC) was used to modify the surface of SWNTs, reducing the surface hydrophobicity of the tubes and thereby producing a stable aqueous nanoparticle suspension. The toxicity of the nanoparticle-copper (Cu) mixture was determined to be additive. The addition of nontoxic concentration of LPC-SWNTs enhanced the uptake and toxicity of copper. Greater amounts of Cu were shown to accumulate in D. magna upon addition of 0.5 and 1.0 mg/L LPC-SWNTs. Environ. Toxicol. Chem. 2010;29:122-126. (C) 2009 SETAC

引用

页码：122 / 126

页数：5

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