期刊
ENVIRONMENTAL SCIENCE & TECHNOLOGY
卷 45, 期 15, 页码 6592-6599出版社
AMER CHEMICAL SOC
DOI: 10.1021/es200809c
关键词
-
资金
- US National Science Foundation [BES 0853989]
- Virginia Tech Institute for Critical Technology and Applied Science
- National Science Foundation (NSF)
- Environmental Protection Agency (EPA) under NSF [EF-0830093]
- Center for the Environmental Implications of NanoTechnology (CEINT)
- Directorate For Engineering
- Div Of Chem, Bioeng, Env, & Transp Sys [0853989] Funding Source: National Science Foundation
- Div Of Biological Infrastructure
- Direct For Biological Sciences [830093] Funding Source: National Science Foundation
Nanoparticles resistant to salt-induced aggregation are continually being developed for biomedical and industrial applications. Because of their colloidal stability these functionalized nanoparticles are anticipated to be persistent aquatic contaminants. Here, we show that Corbicula fluminea, a globally distributed clam that is a known sentinel of aquatic ecosystem contamination, can uptake and biodeposit bovine serum albumin (BSA) stabilized gold nanoparticles. Nanopartide clearance rates from suspension were dictated by diameter and concentration, with the largest particles cleared most quickly on a mass basis. Particle capture facilitates size-selective 'biopurification' of particle suspensions with nanoscale resolution. Nanoparticles were retained either within the clam digestive tract or excreted in feces. Our results suggest that biotransformation and biodeposition will play a significant role in the fate and transport of persistent nanoparticles in aquatic systems.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据