Effects of aged TiO2 nanomaterial from sunscreen on Daphnia magna exposed by dietary route

► Pseudokirchneriella subcapitata were contaminated with artificially aged TiO2 nanocomposites. ► Contaminated algae were used to fed Daphnia magna in a chronic dietary test. ► Dietary chronic exposure of TiO2 nano-residues decreased growth and reproduction. ► These effects could be partly related to the modification of the digestive physiology of daphnids.