“As with any emerging technology or novel material, the scarcity of exposure and effect data introduces potentially high uncertainty into the characterisation of nanomaterials risk,” say the researchers. “Future priorities will include not only the generation of new exposure and hazard data, but also the application of suitable approaches and methods to support future decisions on nanomaterials risk.”
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a collection of articles about nanomaterials and health
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"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." Delete the scoop?
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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. Delete the scoop?
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