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Atmospheric Oxidative Aging and Salt Coating Modulate the Ice Nucleation Activity of Nanoplastics
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Researchers investigated how atmospheric oxidative aging and salt coating affect the ice nucleation activity of nanoplastics, finding that environmental weathering processes significantly modulate the ability of nanoplastic particles to nucleate ice.
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Antagonistic Effects of Atmospheric Oxidative Aging and Salt Coating Sustain the Ice-Nucleating Ability of Nanoplastics
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Researchers investigated how atmospheric oxidative aging and salt coating affect the ice-nucleating ability of nanoplastics, finding that these two processes have antagonistic effects that sustain ice-nucleating capacity over time. The results suggest that weathered nanoplastics in the atmosphere can maintain climate-relevant properties, with implications for cloud formation and precipitation processes.
Ice Nucleation of Model Nanoplastics and Microplastics: A Novel Synthetic Protocol and the Influence of Particle Capping at Diverse Atmospheric Environments
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Researchers developed a novel low-energy synthetic protocol for producing model nano- and microplastic particles and investigated their ice nucleation activity, finding that particle capping significantly influenced ice formation behavior across different simulated atmospheric environments.
Heterogeneous Ice Nucleation of Microplastics before and after Oxidation
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Researchers investigated heterogeneous ice nucleation induced by seven morphologies of polypropylene, polyethylene, and polyethylene terephthalate microplastics in immersion freezing mode, and examined how atmospheric oxidation affects their ice-nucleating efficiency and potential influence on cloud formation.
Microplastic particles contain ice nucleation sites that can be deactivated by atmospheric aging
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Researchers found that microplastics can act as ice nucleation sites that trigger cloud glaciation, but that atmospheric aging processes such as UV exposure and chemical weathering can deactivate these ice nucleation properties, with implications for cloud formation and climate.
Investigating the ice nucleation activity of microplastics colonized with microorganisms
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Researchers investigated whether microplastics colonized by microorganisms show increased ice nucleation activity compared to uncolonized particles. The study found that weathering and microbial colonization can alter microplastic surface properties in ways relevant to atmospheric processes.
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