NDLI: Salinity increases the toxicity of silver nanocolloids to Japanese medaka embryos

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Front cover

Inside front cover

Contents list

Environmental Science: Nano– the first year a successful launch

Research strategy to determine when novel nanohybrids pose unique environmental risks

Fate descriptors for engineered nanoparticles: the good, the bad, and the ugly

Much ado about α: reframing the debate over appropriate fate descriptors in nanoparticle environmental risk modeling

Catalytic properties and biomedical applications of cerium oxide nanoparticles

Toxicity of halloysite clay nanotubes in vivo: a Caenorhabditis elegans study

Quantification of graphene and graphene oxide in complex organic matrices

Accumulation, speciation and uptake pathway of ZnO nanoparticles in maize

Fabrication and characterization of poly(ethylene oxide) templated nickel oxide nanofibers for dye degradation

Behaviour of titanium dioxide and zinc oxide nanoparticles in the presence of wastewater-derived organic matter and implications for algal toxicity

Salinity increases the toxicity of silver nanocolloids to Japanese medaka embryos

Back cover

Environmental Science: Nano Vol -1

Salinity increases the toxicity of silver nanocolloids to Japanese medaka embryos

Content Provider	Royal Society of Chemistry (RSC)
Author	Kawaguchi, Hideo Kataoka, Chisato Nagasaka, Seiji Ariyoshi, Tadashi Kashiwada, Shosaku
Copyright Year	2015
Abstract	To investigate the effects of salinity on the toxicity of silver nanocolloids (SNCs, 28.4 nm in diameter) in aquatic environments (freshwater, brackish water, and seawater), we exposed 15 medaka eggs in triplicate to SNCs at 10 mg L−1 in different salinities of embryo-rearing medium (ERM) (1×, 5×, 10×, 15×, 20×, and 30×) until hatching (1× ERM and 30× ERM have osmotic pressures equivalent to freshwater and seawater, respectively). With increasing concentration of ERM, SNCs aggregated to 437.3 nm in diameter in 30× ERM solution. Simultaneously, soluble silver chloro complexes (various combinations of [AgCl]0, [AgCl2]1−, [AgCl3]2−, and [AgCl4]3−) were calculated to have been formed. The patterns of the absorption spectra of SNCs and AgNO3 (a reference compound) differed markedly in ERM at different salinities, indicating that different soluble silver complexes were present in each solution. With increasing salinity, the chorion resistance decreased, and the salinity in the medaka eggs, as indicated by the osmotic pressure, increased. Simultaneously, uptake of SNCs or other silver complexes into the embryos also increased compared with that of AgNO3 in 20× and 30× ERM. In the presence of SNCs in 20× ERM, embryo hatching rate and full body lengths of post-hatch larvae were significantly lower than those with AgNO3. The toxic effects of SNCs on the hatching rate increased significantly in media of high salinity and were greater than those of AgNO3. SNCs and related silver chloro complexes exhibited higher bioavailability and medaka embryo toxicity in saline conditions than did AgNO3. SNCs pose greater ecological risks to fish embryos in high-salinity aquatic environments than in freshwater environments.
Starting Page	94
Ending Page	103
Page Count	10
File Format	HTM / HTML PDF
ISSN	20518153
Volume Number	2
Issue Number	1
Journal	Environmental Science: Nano
DOI	10.1039/c4en00175c
Language	English
Publisher	Royal Society of Chemistry
Access Restriction	Open
Subject Keyword	ERM Salinity Silver chloride Osmosis Embryo Bioavailability
Content Type	Text
Resource Type	Article
Subject	Environmental Science Materials Science

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Salinity increases the toxicity of silver nanocolloids to Japanese medaka embryos

Silver toxicity across salinity gradients: the role of dissolved silver chloride species (AgCl x ) in Atlantic killifish (Fundulus heteroclitus) and medaka (Oryzias latipes) early life-stage toxicity

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Salinity increases the toxicity of silver nanocolloids to Japanese medaka embryos

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