We can't find the internet
Attempting to reconnect
Something went wrong!
Hang in there while we get back on track
Cryogenic milling of consumer plastics for high-throughput characterization of polydisperse, amorphous microplastics
Summary
Researchers used cryogenic milling to generate microplastic samples from consumer plastics and then characterized the resulting polydisperse, amorphous particles by size, shape, and polymer properties. The technique produced environmentally realistic secondary MPs and demonstrated that cryomilling is a high-throughput approach for generating reference materials with morphology similar to environmental MPs.
Microplastics - defined as tiny polymer fragments less than 5 mm in size - pose a clear threat to a wide range of small organisms through ingestion, leading to starvation. In addition, there are many reports of their occurrence both in remote geographical areas and in the human body. Small and made of mostly inert materials, they pose a significant analytical challenge. While primary microplastics i.e., those manufactured intentionally, have defined characteristics, secondary microplastics resulting from the degradation of larger plastic debris are much less understood. Cryogenic milling has emerged as one of the best ways to generate realistic samples with potential for use as references in studies. Here, we use this technique to generate and study the shapes and properties of a wide range of consumer plastics, providing an overview of optical and analytical properties.
Sign in to start a discussion.
More Papers Like This
Cryogenic Milling of Consumer Plastics for High‐Throughput Characterization of Polydisperse, Amorphous Microplastics
Researchers developed a cryogenic milling method to produce realistic microplastic samples from common consumer plastics for use in laboratory studies. The technique generates particles with the irregular shapes and surface properties of real-world microplastics, unlike the smooth spherical beads typically used in experiments. The study provides a standardized way to create more environmentally representative test materials, which could improve the accuracy of microplastic toxicity research.
An assessment of methods used for the generation and characterization of cryomilled polystyrene micro- and nanoplastic particles
Researchers evaluated cryomilling as a method for generating environmentally realistic microplastic and nanoplastic particles from polystyrene for use in laboratory studies. They found that increasing the number of milling cycles consistently produced smaller particles without altering the polymer's chemical composition. The study provides optimized protocols for creating heterogeneous test particles that more closely resemble the microplastics found in real environmental samples.
Preparation of model microplastics from aged industrial polymers to studying their toxicity
A thesis compared cryomilling versus an innovative environmental-simulation method for generating polypropylene microplastics, finding that environmentally simulated MPs better replicate the physical and chemical properties of microplastics found in nature.
Methods for the Generation and Characterization of Cryomilled Micro- and Nanoplastics
Researchers developed a cryomilling method to produce environmentally realistic microplastics and nanoplastics for laboratory studies, creating particles that better mimic real-world plastic fragments in size, shape, and surface properties. Having more realistic test particles improves the accuracy of research into how microplastics affect living organisms.
Mechanical formation of micro- and nano-plastic materials for environmental studies in agricultural ecosystems
Researchers developed a mechanical method for producing micro- and nanoplastic particles from agricultural plastic films, creating materials more representative of real-world soil contaminants than the idealized spheres commonly used in lab studies. They successfully generated polydisperse fragments from low-density polyethylene mulch film using cryogenic milling. The study provides the research community with more realistic plastic materials for studying the environmental fate and ecological effects of agricultural plastic pollution.