纳米颗粒经食物链暴露后，海洋桡足类动物体内银的生物可利用性增加。
Higher silver bioavailability after nanoparticle dietary exposure in marine amphipods.
机构信息
Institute of Biology, University of Campinas, Campinas, São Paulo, Brazil.
School of Technology, University of Campinas, Limeira, São Paulo, Brazil.
出版信息
Environ Toxicol Chem. 2019 Apr;38(4):806-810. doi: 10.1002/etc.4359. Epub 2019 Feb 19.
On release into surface waters, engineered silver nanoparticles (AgNPs) tend to settle to sediments and, consequently, epibenthic fauna will be exposed to them through diet. We established Ag uptake and accumulation profiles over time in the hemolymph of a marine amphipod fed with a formulated feed containing AgNPs or AgCl. Silver bioavailability was higher in organisms exposed to AgNPs, indicating that the nanoparticles pose a higher risk of toxicity compared to similar concentrations of AgCl. Environ Toxicol Chem 2019;38:806-810. © 2019 SETAC.
释放到地表水中后，工程银纳米颗粒（AgNPs）往往会沉降到沉积物中，因此，底栖动物将通过饮食接触到它们。我们建立了海洋桡足类动物在摄入含有 AgNPs 或 AgCl 的配方饲料时，随时间推移在血淋巴中摄取和积累 Ag 的概况。暴露于 AgNPs 的生物体中 Ag 的生物利用度更高，这表明与相似浓度的 AgCl 相比，纳米颗粒具有更高的毒性风险。环境毒理化学 2019；38:806-810. © 2019 SETAC.
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