We can't find the internet
Attempting to reconnect
Something went wrong!
Hang in there while we get back on track
Data acquired in laboratory experiments conducted to characterize Ag bioaccumulation kinetics in Daphnia magna after exposures to polystyrene microplastics and Ag nanoparticles
Summary
Researchers assessed how the presence of polystyrene microplastics affects the bioaccumulation of silver nanoparticles in the filter-feeding zooplankton Daphnia magna. The study provides laboratory data on silver uptake kinetics at environmentally relevant concentrations, contributing to understanding how microplastics may interact with other contaminants to alter their biological availability to aquatic organisms.
Microplastics (MPs) are an environmental concern. They can interact with other contaminants and pose new threats to organisms. We assessed the effect MPs on silver (Ag) bioaccumulation in the filter-feeding zooplankton Daphnia magna exposed to Ag nanoparticles at environmentally relevant concentrations.
Sign in to start a discussion.
More Papers Like This
A preliminary study of the interactions between microplastics and citrate-coated silver nanoparticles in aquatic environments
Researchers investigated interactions between citrate-coated silver nanoparticles and three types of microplastics, finding that polystyrene efficiently removed silver nanoparticles from solution via π-π interactions, while polyethylene and polypropylene showed no significant interaction. The study provides first evidence that plastic type governs the co-transport of nanoparticles with microplastics in aquatic environments.
Mechanistic Roles of Microplastics in the Phototransformation of Silver Ions in Aquatic Environments
This study found that polystyrene microplastics mediate the transformation of silver ions into silver nanoparticles (Ag0, Ag2O, Ag2S) under natural and UV light irradiation, acting as reactive surfaces that alter silver speciation and potentially increase its bioavailability in aquatic systems.
Accumulation kinetics of polystyrene nano- and microplastics in the waterflea Daphnia magna and trophic transfer to the mysid Limnomysis benedeni
Researchers investigated the accumulation kinetics of polystyrene particles ranging from 26 nm to 4800 nm in Daphnia magna and their subsequent transfer to the mysid Limnomysis benedeni. Smaller particles accumulated more efficiently in Daphnia, and trophic transfer to mysids was demonstrated, confirming that nano- and microplastics move through aquatic food chains with size-dependent efficiency.
Polystyrene microplastics sunlight-induce oxidative dissolution, chemical transformation and toxicity enhancement of silver nanoparticles
Researchers discovered that polystyrene microplastics can induce sunlight-driven oxidative dissolution and chemical transformation of silver nanoparticles, enhancing their toxicity and revealing important implications for how co-occurring pollutants interact in the environment.
Impacts of polystyrene microplastics on Daphnia magna: A laboratory and a mesocosm study
Laboratory tests and mesocosm experiments with Daphnia magna and polystyrene microplastics found that effects at high concentrations were more related to food dilution than direct toxicity, and population-level effects in mesocosms were minimal. The study emphasizes the importance of using realistic concentrations and multi-species systems to assess microplastic risks.