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Transport of eco-corona coated nanoplastics in coastal sediments

Water Research 2025 5 citations ? Citation count from OpenAlex, updated daily. May differ slightly from the publisher's own count. Score: 53 ? 0–100 AI score estimating relevance to the microplastics field. Papers below 30 are filtered from public browse.

Rubi Zhao, Tongtao Yue, Xia Liu, Xia Liu, Tongtao Yue, Yanhui Dai, Zhenyu Wang, Rubi Zhao, Yanhui Dai, Chu Wang, Zhenyu Wang, Tongtao Yue, M. Liu, Tongtao Yue, Xia Liu, Zhuomiao Liu, Rubi Zhao, Zhuomiao Liu, Rubi Zhao, Baoshan Xing Chu Wang, Zhenyu Wang, Zhenyu Wang, M. Liu, Zhuomiao Liu, Zhenyu Wang, Zhuomiao Liu, Zhenyu Wang, Zhuomiao Liu, Zhenyu Wang, Zhuomiao Liu, Zhuomiao Liu, Xia Liu, Tongtao Yue, M. Liu, M. Liu, Tianyuan Zheng, Zhenyu Wang, Yanhui Dai, Zhenyu Wang, Zhenyu Wang, Baoshan Xing Baoshan Xing Zhenyu Wang, Yujie Hao, Yujie Hao, Zhenyu Wang, Xia Liu, Baoshan Xing Zhenyu Wang, Zhuomiao Liu, Zhenyu Wang, Zhenyu Wang, Baoshan Xing Baoshan Xing Baoshan Xing Baoshan Xing Zhenyu Wang, Zhenyu Wang, Baoshan Xing Baoshan Xing Tongtao Yue, Baoshan Xing Zhenyu Wang, Yanhui Dai, Yanhui Dai, Yanhui Dai, Yanhui Dai, Yanhui Dai, Tongtao Yue, Xia Liu, Zhenyu Wang, Zhenyu Wang, Zhuomiao Liu, Zhenyu Wang, Zhenyu Wang, Tongtao Yue, Zhenyu Wang, Baoshan Xing Zhenyu Wang, Baoshan Xing Baoshan Xing Zhuomiao Liu, Chu Wang, Zhenyu Wang, Baoshan Xing Zhenyu Wang, Zhenyu Wang, Zhenyu Wang, Baoshan Xing Baoshan Xing Zhuomiao Liu, Baoshan Xing Baoshan Xing Rubi Zhao, Zhenyu Wang, Zhuomiao Liu, Xia Liu, Zhuomiao Liu, Baoshan Xing Baoshan Xing Zhuomiao Liu, Zhuomiao Liu, Baoshan Xing Zhenyu Wang, Tongtao Yue, Tongtao Yue, Tongtao Yue, Zhuomiao Liu, Zhenyu Wang, Baoshan Xing Baoshan Xing Tongtao Yue, Yanhui Dai, Zhenyu Wang, Lu Liu, Baoshan Xing Zhenyu Wang, Baoshan Xing Zhenyu Wang, Baoshan Xing Baoshan Xing Zhuomiao Liu, Zhenyu Wang, Zhuomiao Liu, Zhenyu Wang, Zhenyu Wang, Tongtao Yue, Baoshan Xing Baoshan Xing Baoshan Xing Baoshan Xing Baoshan Xing Zhuomiao Liu, Baoshan Xing Baoshan Xing Baoshan Xing Chu Wang, Baoshan Xing Baoshan Xing Baoshan Xing Baoshan Xing Yating Zhao, Baoshan Xing Yanhui Dai, Yanhui Dai, Yanhui Dai, Xia Liu, Xia Liu, Tongtao Yue, Tongtao Yue, Yanhui Dai, Baoshan Xing Zhuomiao Liu, Baoshan Xing Tongtao Yue, Baoshan Xing Baoshan Xing Baoshan Xing Zhuomiao Liu, Baoshan Xing Baoshan Xing Tongtao Yue, Baoshan Xing Baoshan Xing Zhuomiao Liu, Baoshan Xing Baoshan Xing Tongtao Yue, Zhuomiao Liu, Zhenyu Wang, Lu Liu, Yanhui Dai, Xia Liu, Zhenyu Wang, Zhenyu Wang, Zhuomiao Liu, Zhenyu Wang, Baoshan Xing Baoshan Xing Baoshan Xing Baoshan Xing Yanhui Dai, Yanhui Dai, Tongtao Yue, Tongtao Yue, Tongtao Yue, Zhuomiao Liu, Baoshan Xing Yanhui Dai, Baoshan Xing Zhenyu Wang, Baoshan Xing Tongtao Yue, Yanhui Dai, Baoshan Xing Baoshan Xing Baoshan Xing Baoshan Xing Jian Zhao, Tongtao Yue, Tongtao Yue, Baoshan Xing Baoshan Xing Baoshan Xing Zhenyu Wang, Baoshan Xing Baoshan Xing Baoshan Xing Baoshan Xing Baoshan Xing

Summary

Researchers investigated how different surface properties and eco-corona coatings affect the transport of polystyrene nanoplastics through coastal marine sediments. They found that negatively charged particles moved more easily through sediment than positively charged ones, while strong aggregation essentially immobilized unmodified particles. The formation of natural organic coatings on nanoplastics had opposing effects depending on surface charge, sometimes enhancing and sometimes inhibiting transport.

Polymers

Study Type Environmental

Transport is a critical process for understanding the fate and risk of nanoplastics (NPs) in marine environments. In this work, vertical transport of polystyrene (PS) NPs with different surface properties in marine sediments were investigated. Two types of Pd-doped (PS-Pd, 100 nm) NPs with distinct hydrophobicity were successfully synthesized, and both types of NPs showed weak and insignificant transport, with ratio of maximum effluent to influent NPs concentrations (M) at 10 %-11 %. This is mainly due to physical straining of both NPs as caused by strong aggregation as confirmed by advection-dispersion modelling. Two functionalized NPs (PS-COOH and PS-NH) showed strong transport in marine sediment, mainly because of weak physical straining. Negatively charged and less hydrophobic PS-COOH NPs exhibited stronger transport (M, 43 %) than PS-NH NPs (M, 15 %). Heteroaggregation experiments and TEM-EDS mapping demonstrated that weak hydrophobic interaction with organic matter and electrostatic attraction with minerals were the main reasons for higher transport of PS-COOH than PS-NH. The formation of eco-corona on NPs inhibited the transport of PS-COOH NPs. However, eco-corona enhanced PS-NH NPs transport (M, 20 ± 5 %) because of decreased electrostatic attraction. Interestingly, for the two PS-Pd NPs, the transport performed differently after eco-corona coating, in which the transport of hydrophilic PS-Pd-1 decreased after eco-corona coating due to increased hydrophobic interaction, while the increased transport of hydrophobic PS-Pd-2 was caused by weakened physical straining in sediments. These results provide insight into transport mechanism of NPs, and highlight critical roles of eco-corona in the fate and processes of NPs in marine sediments.

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