Higher Silver Bioavailability After Nanoparticle Dietary Exposure in Marine Amphipods


Monizze Vannuci-Silva, Solange Cadore, Theodore B. Henry, Gisela Umbuzeiro


On release into surface waters, engineered silver nanoparticles (AgNPs) tend to settle to sediments and, consequently, epibenthic fauna will be exposed to them through diet. We established Ag uptake and accumulation profiles over time in the hemolymph of a marine amphipod fed with a formulated feed containing AgNPs or AgCl. Silver bioavailability was higher in organisms exposed to AgNPs, indicating that the nanoparticles pose a higher risk of toxicity compared to similar concentrations of AgCl.

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Vannuci-Silva M, Cadore S, Henry TB, Umbuzeiro G. 2019. Higher silver bioavailability after nanoparticle dietary exposure in marine amphipods. Environmental Toxicology and Chemistry 38:806-810.