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Nanotechnology & Health
a collection of articles about nanomaterials and health
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Effects of particle size and coating on nanoscale Ag and TiO2 exposure in zebrafish (Danio rerio) embryos, Nanotoxicology, Informa Healthcare

Effects of particle size and coating on nanoscale Ag and TiO2 exposure in zebrafish (Danio rerio) embryos, Nanotoxicology, Informa Healthcare | Nanotechnology & Health | Scoop.it

"Manufactured metal (oxide) nanoparticles are entering the aquatic environment with little understanding on their potential health impacts for exposed organisms. Adopting an integrative approach, we investigated effects of particle size and coating on biological responses for two of the most commonly used metal (oxide) nanoscale particles, silver (Ag) and titanium dioxide (TiO2) in zebrafish embryos... Ag both in nano form (10 nm and 35 nm) and its larger counterpart (600–1600 nm) induced dose-dependent lethality and morphological defects, occurring predominantly during gastrula stage. Of the silver material tested 10 nm nanoparticles appeared to be the most toxic... Collectively, our data suggest that silver ions play a major role in the toxicity of Ag nanoparticles."

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Super-strong, high-tech material found to be toxic to aquatic animals

Carbon nanotubes (CNTs) have potential uses in everything from medicine to electronics to construction. However, CNTs are not without risks. A new study found that they can be toxic to aquatic animals.
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