Higher silver bioavailability after nanoparticle dietary exposure in marine amphipods

Author(s)

Vannuci-Silva, Monizze ^{[1, 2]} ; Cadore, Solange ^[3] ; Henry, Theodore B. ^{[4, 5]} ; Umbuzeiro, Gisela ^{[1, 2]}

Affiliation

^[1] Univ Estadual Campinas, Inst Biol, Campinas, SP - Brazil

^[2] Univ Estadual Campinas, Sch Technol, Limeira, SP - Brazil

^[3] Univ Estadual Campinas, Inst Chem, Campinas, SP - Brazil

^[4] Heriot Watt Univ, Inst Life & Earth Sci, Sch Energy Geosci Infrastruct & Soc, Edinburgh, Midlothian - Scotland

^[5] Univ Tennessee, Ctr Environm Biotechnol, Dept Forestry Wildlife & Fisheries, Knoxville, TN 37932 - USA

• Document type: Journal article
• Source: Environmental Toxicology and Chemistry; v. 38, n. 4, p. 806-810, APR 2019.
• Web of Science Citations: 1

Abstract

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. Environ Toxicol Chem 2019;38:806-810. (c) 2019 SETAC (AU)

• FAPESP's process: 13/26301-7 - Development and application of method for silver determination in the hemolymph of amphipods exposed to nanomaterials
• Grantee: Monizze Vannuci e Silva
• Support Opportunities: Scholarships in Brazil - Doctorate