We can't find the internet
Attempting to reconnect
Something went wrong!
Hang in there while we get back on track
Towards more realistic reference microplastics and nanoplastics: preparation of polyethylene micro/nanoparticles with a biosurfactant
AI summary Read the abstract
Polyethylene micro/nanoparticles stabilized with a biosurfactant were prepared as more realistic reference materials for ecotoxicity testing, better representing the surface properties and behavior of environmental microplastics compared to commercial standard materials. The study addresses a key methodological limitation in nanoplastic research by providing particles with environmentally relevant surface chemistry.
New polyethylene micro/nanoparticles with a biosurfactant as model micro/nanoplastics to assess the toxicity of small plastics to aquatic organisms.
More Papers Like This
Approaches for the preparation and evaluation of hydrophilic polyethylene and polyethylene terephthalate microplastic particles suited for toxicological effect studies
AI summary Read the abstract
Researchers developed methods to create large quantities of artificially aged, hydrophilic microplastic particles from PET and polyethylene, eliminating the need for surfactants in toxicity experiments. Using alkaline and acidic treatments, they produced particles smaller than 5 micrometers with significantly increased water compatibility. These standardized, aged particles better represent real-world microplastics and could improve the consistency and relevance of laboratory toxicity studies.
Surfactant-free synthesis of polyethylene nanoparticles: toward more realistic model nanoplastics
AI summary Read the abstract
Researchers developed a surfactant-free aqueous emulsion polymerization method to synthesize polyethylene nanoparticles (50–200 nm) as more realistic model nanoplastics for laboratory studies. Unlike surfactant-stabilized models, these particles better mimic the physicochemical properties of environmental nanoplastics.
Are we really producing environmentally relevant reference materials for microplastic studies?
AI summary Read the abstract
This study critically evaluated whether current laboratory-produced microplastic reference materials adequately represent the properties of microplastics found in real environments, examining particle morphology, chemical composition, and surface characteristics. Significant gaps were identified between commercially available reference materials and environmentally relevant particles, limiting the ecological realism of ecotoxicology studies.
Exposure protocol for ecotoxicity testing of microplastics and nanoplastics
AI summary Read the abstract
This paper presents a standardized testing protocol for evaluating the environmental toxicity of microplastics and nanoplastics. Current studies often use uniform lab-made plastic particles that do not represent the irregular shapes and mixed compositions found in nature. The new protocol addresses this gap by providing methods for creating more realistic test particles and adapting existing guidelines for both soil and water organisms.
Small micro- and nanoplastic test and reference materials for research: Current status and future needs
AI summary Read the abstract
This review highlights the critical shortage of well-characterized, environmentally relevant reference materials for studying small microplastics and nanoplastics. Most laboratory studies use commercially available spherical particles that do not represent the irregular, weathered particles found in nature. The authors call for developing standardized reference materials that better mimic real-world microplastic contamination to improve the reliability of exposure and hazard assessments.
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.