We can't find the internet
Attempting to reconnect
Something went wrong!
Hang in there while we get back on track
Pollutant adsorption on microplastic and its release during digestion processes
AI summary Read the abstract
Researchers investigated how microplastics act as contaminant vectors for copper and PFAS by adsorbing these substances onto polystyrene, polypropylene, and polyethylene particles and then evaluating their release under simulated gastrointestinal conditions using the Infogest static digestion protocol. They compared adsorption and release across polymer types and particle morphologies (spherical microbeads vs. post-consumer irregular microplastics) to assess how pH, enzymes, and bile affect desorption of these contaminants.
Microplastics in the marine environment can have a high affinity for some contaminants, thereby increasing their bioavailability to biota. Organic contaminants, including PFAS, as well as metals have been shown to adsorb on microplastic surface. The main goal of this study was to better understand how microplastic particles can act as a contaminant vector, with a particular focus on copper and PFAS. The contaminants were adsorbed onto three types of polymers: polystyrene, polypropylene and polyethylene, and then put into a static digestion model using the Infogest protocol to evaluate the effect of gastrointestinal conditions on their further release. As a control environmental media (water) was used. Studies were designed to mimic the relevant conditions in the environment and digestion system. The experiments were performed on spherical microbeads and post-consumer plastic (micro- fraction of irregular size created from post-consumer items). We compared the adsorption and release results of different polymers to evaluate how pH, enzymes and bile can affect the desorption degree of these compounds. Also see: https://micro2024.sciencesconf.org/559747/document
More Papers Like This
Pollutant adsorption on microplastic and its release during digestion processes
AI summary Read the abstract
Researchers investigated the adsorption of copper and PFAS onto polystyrene, polypropylene, and polyethylene microplastics and examined the subsequent release of these contaminants during simulated digestion processes. The study aimed to clarify the role of microplastics as vectors that increase contaminant bioavailability in marine biota.
Copper adsorption on microplastics: Investigating toxicity in an in vitro digestive environment
AI summary Read the abstract
Researchers investigated how the presence of naturally weathered microplastics affects the bioaccessibility and toxicity of adsorbed copper during simulated gastrointestinal digestion. Results showed that microplastics altered the release and uptake of copper in the gut, potentially increasing or decreasing its bioavailable fraction depending on conditions.
Copper adsorption on microplastics: Investigating toxicity in an in vitro digestive environment
AI summary Read the abstract
Researchers analyzed how the presence of microplastics affects copper bioaccessibility and toxicity during in vitro digestion, testing naturally weathered particles as a realistic exposure model. Microplastics altered the bioaccessible fraction of copper, with implications for how co-ingested metals behave in the human gut.
Microplastics as Vectors of Chromium and Lead during Dynamic Simulation of the Human Gastrointestinal Tract
AI summary Read the abstract
Using a dynamic in vitro simulator of the human gastrointestinal tract, researchers showed that chromium and lead adsorbed to polyethylene and polypropylene microplastics are released and become bioaccessible in gut conditions, suggesting microplastics can act as vectors delivering heavy metals to human tissues.
Desorption of bisphenol A from microplastics under simulated gastrointestinal conditions
AI summary Read the abstract
Researchers investigated bisphenol A desorption from three types of microplastics under simulated gastrointestinal conditions, finding that ingested microplastics can release adsorbed BPA during digestion, posing potential health risks.
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.