Transfer of gold nanoparticles from the water column to the estuarine food web
- 21 June 2009
- journal article
- letter
- Published by Springer Science and Business Media LLC in Nature Nanotechnology
- Vol. 4 (7), 441-444
- https://doi.org/10.1038/nnano.2009.157
Abstract
Within the next five years the manufacture of large quantities of nanomaterials may lead to unintended contamination of terrestrial and aquatic ecosystems1. The unique physical, chemical and electronic properties of nanomaterials allow new modes of interaction with environmental systems that can have unexpected impacts2,3. Here, we show that gold nanorods can readily pass from the water column to the marine food web in three laboratory-constructed estuarine mesocosms containing sea water, sediment, sea grass, microbes, biofilms, snails, clams, shrimp and fish. A single dose of gold nanorods (65 nm length × 15 nm diameter) was added to each mesocosm and their distribution in the aqueous and sediment phases monitored over 12 days. Nanorods partitioned between biofilms, sediments, plants, animals and sea water with a recovery of 84.4%. Clams and biofilms accumulated the most nanoparticles on a per mass basis, suggesting that gold nanorods can readily pass from the water column to the marine food web.Keywords
This publication has 27 references indexed in Scilit:
- Uptake, translocation, and accumulation of manufactured iron oxide nanoparticles by pumpkin plantsJournal of Environmental Monitoring, 2008
- Environmental behavior and ecotoxicity of engineered nanoparticles to algae, plants, and fungiEcotoxicology, 2008
- Nanoparticles at largeNature Nanotechnology, 2008
- Cytotoxicity of NanoparticlesSmall, 2008
- Determining the Size and Shape Dependence of Gold Nanoparticle Uptake into Mammalian CellsNano Letters, 2006
- Seeded High Yield Synthesis of Short Au Nanorods in Aqueous SolutionLangmuir, 2004
- The fate of fipronil in modular estuarine mesocosmsElectronic supplementary information (ESI) available: table of GC-ECD and GC-ITMS retention times, RT, for fipronil analytes; mass spectra of fipronil, fipronil desulfinyl, fipronil sulfide, fipronil sulfone and fipronil amide; and aqueous product distribution of fipronil in estuarine mesocosms over the experimental timescale. See http://www.rsc.org/suppdata/em/b3/b307304a/Journal of Environmental Monitoring, 2003
- Distribution of estuarine benthic diatom species along salinity and nutrient gradientsEuropean Journal of Phycology, 1998
- A modular estuarine mesocosmEnvironmental Toxicology and Chemistry, 1996
- Body water content over a range of ambient salinities in the sheepshead minnowJournal of Fish Biology, 1995