Absorption of semiconductor nanocrystals by the aquatic invertebrate Ceriodaphnia dubia
Document Type
Article
Publication Title
BULLETIN OF ENVIRONMENTAL CONTAMINATION AND TOXICOLOGY
PubMed ID
18626563
Abstract
When incubated with nanomolar concentrations of fluorescent semiconductor nanocrystals in moderately hard water the fluorescence of living Ceriodaphnia dubia increased. Average pixel intensity of exposed animals was greater than that of unexposed animals and increased in a dose and exposure time-dependent-manner. Internal structures were clearly visible in exposed and unexposed animals but fluorescence was most intense in the region of the abdominal appendages of exposed animals. Since these nanoparticles contain significant quantities of the toxic metals cadmium and selenium, their accumulation from aquatic environments by this standard test organism has significant implications about their potential environmental toxicity.
First Page
249
Last Page
252
DOI
10.1007/s00128-008-9481-y
Publication Date
2008
Recommended Citation
Ingle, Taylor M.; Alexander, Regina; Bouldin, Jennifer L.; and Buchanan, Roger A., "Absorption of semiconductor nanocrystals by the aquatic invertebrate Ceriodaphnia dubia" (2008). Faculty Publications. 8.
https://arch.astate.edu/scm-biofac/8
