We can't find the internet
Attempting to reconnect
Something went wrong!
Hang in there while we get back on track
Secreted protein eco-corona mediates uptake and impacts of polystyrene nanoparticles on Daphnia magna
AI summary Read the abstract
Researchers discovered that proteins secreted by Daphnia magna create an eco-corona around polystyrene nanoparticles, increasing their uptake and toxicity. The study found that this protein coating also made the nanoparticles harder to remove from the gut, demonstrating a previously unknown biological mechanism that enhances the harmful effects of nanoplastics on this important indicator species.
Daphnia magna are an important environmental indicator species who may be especially sensitive to nanoparticles (NPs) as a result of being filter-feeders. This paper demonstrates for the first time that proteins released by Daphnia magna create an eco-corona around polystyrene NPs which causes heightened uptake of the NPs and consequently increases toxicity. The secreted protein eco-corona also causes the NPs to be less efficiently removed from the gut of D. magna and NPs remaining in the gut of D. magna affected the rate of subsequent feeding. Thus, fate of NPs in the environment should be evaluated and monitored under more realistic exposure scenarios.
More Papers Like This
Protein binding on acutely toxic and non-toxic polystyrene nanoparticles during filtration by Daphnia magna
AI summary Read the abstract
Researchers investigated protein binding on acutely toxic versus non-toxic polystyrene nanoparticles during filtration by Daphnia magna zooplankton, finding that the two particle types bind different protein profiles, suggesting that surface protein corona composition may help explain differential toxicity outcomes.
Nanoplastics and the Role of the Corona in the Biological Responses of Daphnia magna
AI summary Read the abstract
Researchers exposed Daphnia magna neonates to nanoplastics coated with biomolecules from fetal bovine serum, Daphnia secretions, or algae, finding that coatings altered nanoplastic surface properties and affected internalization and biological responses differently depending on the biomolecule source.
Nanoplastics andthe Role of the Corona in the BiologicalResponses of Daphnia magna
AI summary Read the abstract
Researchers studied how biomolecule coatings from fetal bovine serum, Daphnia secretions, and algae affected nanoplastic toxicity in Daphnia magna, finding that coatings altered the nanoplastic surface and affected internalization and biological responses differently depending on the biomolecule source.
Fate of polystyrene micro- and nanoplastics in zebrafish liver cells: Influence of protein corona on transport, oxidative stress, and glycolipid metabolism
AI summary Read the abstract
Scientists studied how proteins in biological fluids coat nanoplastic particles (forming a "protein corona") and how this coating changes the way cells take up and process the plastics. The protein coating actually increased how many nanoplastics entered liver cells and made them harder to clear out, suggesting that once nanoplastics enter the bloodstream, the body's own proteins may make the contamination harder to eliminate.
Mechanisms of eco-corona effects on micro(nano)plastics in marine medaka: Insights into translocation, immunity, and energy metabolism
AI summary Read the abstract
Researchers studied how eco-corona (biomolecule coatings that form on plastics in the ocean) affects the behavior of micro- and nanoplastics in marine medaka fish. They found that eco-corona facilitated the translocation of microplastics from the intestine to the liver and prolonged their retention time in larvae. The study suggests that naturally occurring biomolecules in marine environments can enhance the movement and toxic effects of plastic particles in fish.
Research digests by email
When a large batch of papers lands in the Atlas, we read through it and send a short write-up of what stood out.