Toxic effects and metabolic response mechanisms of amino-modified polystyrene nanoplastics and arsenic on Microcystis aeruginosa

Xin‐Wei Shi; Qi Wang; Weitao Liu; Ruiying Shi; Yichen Ge; Jinzheng Liu

doi:10.1039/d4en01106f

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Toxic effects and metabolic response mechanisms of amino-modified polystyrene nanoplastics and arsenic on Microcystis aeruginosa

Environmental Science Nano 2025 2 citations ? Citation count from OpenAlex, updated daily. May differ slightly from the publisher's own count.

Xin‐Wei Shi, Qi Wang, Weitao Liu, Ruiying Shi, Yichen Ge, Jinzheng Liu

Summary

Researchers investigated the combined effects of amine-modified polystyrene nanoplastics and arsenic on a common freshwater cyanobacterium. They found that co-exposure intensified cellular stress, disrupted metabolic processes, and promoted the release of harmful toxins beyond what either pollutant caused individually. The findings reveal previously unrecognized risks to freshwater ecosystems when nanoplastics interact with heavy metal contaminants.

Polymers

PS

This study uncovers how co-exposure to PSNPs-NH 2 and arsenic intensifies cyanobacterial stress, disrupts metabolism, and promotes toxin release, revealing new risks to aquatic stability and pollutant behavior.

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