{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,10,4]],"date-time":"2026-10-04T05:29:34Z","timestamp":1791091774647,"version":"4.1.0"},"reference-count":42,"publisher":"Wiley","issue":"6","license":[{"start":{"date-parts":[[2010,11,18]],"date-time":"2010-11-18T00:00:00Z","timestamp":1290038400000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/onlinelibrary.wiley.com\/termsAndConditions#vor"}],"content-domain":{"domain":["onlinelibrary.wiley.com"],"crossmark-restriction":true},"short-container-title":["Environmental Toxicology"],"published-print":{"date-parts":[[2010,12]]},"abstract":"<jats:title>Abstract<\/jats:title><jats:p>With an increasing use of quantum dots (QDs) in many applications, their potential hazard is of growing concern. However, little is known about their ecotoxicity, especially <jats:italic>in vivo<\/jats:italic>. In the present study, we employed freshwater macroinvertebrate, <jats:italic>Daphnia magna<\/jats:italic>, to evaluate toxicity characteristics of cadmium selenide\/zinc selenide (CdSe\/ZnSe) in relation to surface coatings, e.g., mercaptopropionic acid QD (<jats:sup>MPA<\/jats:sup>QD), and gum arabic\/tri\u2010<jats:italic>n<\/jats:italic>\u2010octylphosphine oxide QD (<jats:sup>GA\/TOPO<\/jats:sup>QD), and light conditions, i.e., dark, fluorescent light, environmental level of ultraviolet (UV) light, and sunlight. The results of the present study showed that <jats:italic>D. magna<\/jats:italic> was more susceptible to <jats:sup>GA\/TOPO<\/jats:sup>QD exposure compared to <jats:sup>MPA<\/jats:sup>QD. The surface coating of QD appeared to determine the stability of QDs and hence the toxicity, potentially by size change of or the release of toxic components from QDs. However, <jats:sup>GA\/TOPO<\/jats:sup>QD was still less toxic than the equivalent level of CdCl<jats:sub>2<\/jats:sub>. The toxicity of all the tested compounds increased by changing the light condition from dark to white fluorescence to UV\u2010B light, and to natural sunlight. The effect of light condition on QDs toxicity could also be explained by photostability of the QDs, which would affect size of the particle, release of toxic component ions, and generation of reactive oxygen species. Considering increasing use of QDs in various applications, their environmental fates and corresponding toxic potentials deserve further investigation. \u00a9 2009 Wiley Periodicals, Inc. Environ Toxicol 25: 593\u2013600, 2010.<\/jats:p>","DOI":"10.1002\/tox.20520","type":"journal-article","created":{"date-parts":[[2009,7,2]],"date-time":"2009-07-02T17:51:34Z","timestamp":1246557094000},"page":"593-600","update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":50,"title":["Acute toxicity of two CdSe\/ZnSe quantum dots with different surface coating in <i>Daphnia magna<\/i> under various light 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