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Particle dynamics of nanoplastics suspended in water with soil microparticles: insights from small angle neutron scattering (SANS) and ultra-SANS
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Researchers used small-angle neutron scattering (SANS) and ultra-SANS (USANS) with neutron contrast matching to directly measure aggregation and size changes of nanoplastics in the presence of vermiculite soil microparticles suspended in water. The study provided quantitative structural insights into nanoplastic-soil particle interactions that are difficult to obtain with conventional light scattering techniques.
Small-angle neutron scattering (SANS) and ultra-SANS (USANS), with neutron contrast matching techniques, measured aggregation and size reduction for nanoplastics in the presence of vermiculite, an artificial soil, suspended in water.
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Effects of soil particles and convective transport on dispersion and aggregation of nanoplastics via small-angle neutron scattering (SANS) and ultra SANS (USANS)
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Researchers used small-angle neutron scattering (SANS) and ultra-SANS techniques to study how soil particles and convective transport influence the dispersion and aggregation of nanoplastics, addressing the challenge of analyzing terrestrial nanoplastics at environmentally relevant concentrations.
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Researchers used neutron and X-ray imaging to visualize and measure how microplastics interact with water in soil. The hydrophobic surfaces of plastic particles can alter how water moves through soil, potentially affecting plant growth, groundwater recharge, and the transport of contaminants.
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Researchers applied simultaneous neutron radiography and X-ray CT imaging at the Paul Scherrer Institute beamline ICON to visualize microplastic transport and water flow interactions in sandy soil columns during wetting and drying cycles, directly imaging how hydrophobic MPs interact with water flow pathways.
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Researchers used neutron and X-ray tomography — scanning technologies that see inside materials without cutting them open — to non-destructively detect and map microplastic particles inside sandy sediment samples, opening new possibilities for studying how microplastics move and accumulate in natural environments.
The Re-distribution of Pristine and Aged Microplastics (<50 µm) in Soil Aggregate Fractions
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Researchers investigated how pristine and aged microplastics smaller than 50 micrometers redistribute among soil aggregate fractions during aggregation in two soil textures amended with organic matter, finding that aggregate formation actively partitions microplastics in ways influenced by soil texture and particle aging.
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