Nanotechnology & Health
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a collection of articles about nanomaterials and health
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Graphene 'may pose health risk' to workers

Graphene 'may pose health risk' to workers | Nanotechnology & Health | Scoop.it

"People involved in making a material used to enhance computer and phone touch screens could be at risk of lung damage, according to new research."

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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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Chemical Watch | News| Nanoparticles may affect water species ability to detect prey

Scientists have highlighted that citrate-coated silver nanoparticles may have a significant effect on ecological populations by influencing the ability of organisms to detect and avoid predators in the environment.
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