The DOI matches its Crossref record; 7 of the 7 references it cites were found in a registry or an index.
Desorption of pharmaceuticals from pristine and aged polystyrene microplastics under simulated gastrointestinal conditions
Abstract
Microplastics (MPs) in the environment usually undergo extensive weathering and can transport pollutants to organisms once being ingested. However, the transportation mechanism and effect of aging process are poorly understood. This study systematically investigated the desorption mechanisms of pharmaceuticals from pristine and aged polystyrene (PS) MPs under simulated gastric and intestinal conditions of marine organisms. Results showed that the increased desorption in stomach mainly depended on the solubilization of pepsin to pharmaceuticals and the competition for sorption sites on MPs via π-π and hydrophobic interactions. However, high desorption in gut relied on the solubilization of intestinal components (i.e. bovine serum albumin (BSA) and bile salts (NaT)) and the competitive sorption of NaT since the enhanced solubility increased the partition of pharmaceuticals in aqueous phase. Aging process suppressed the desorption of pharmaceuticals because aging decreased hydrophobic and π-π interactions but increased electrostatic interaction between aged MPs and pharmaceuticals, which became less affected by gastrointestinal components. Risk assessment indicated that the MP-associated pharmaceuticals posed low risks to organisms, and warm-blooded organisms suffered relatively higher risks than cold-blooded ones. This study reveals important information to understand the ecological risks of co-existed MPs and pollutants in the environment.
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Cites
Accumulation and fragmentation of plastic debris in global environments
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Transfer of PCBs from Microplastics under Simulated Gut Fluid Conditions Is Biphasic and Reversible
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Cited by
Atugoda, T., Vithanage, M., Wijesekara, H., Bolan, N., Sarmah, A. K., Bank, M. S., You, S., & Ok, Y. S. (2021) · Environment International · doi:10.1016/j.envint.2020.106367 · Cited by 561
Huang, Y., Ding, J., Zhang, G., Liu, S., Zou, H., Wang, Z., Zhu, W., & Geng, J. (2021) · Science of The Total Environment · doi:10.1016/j.scitotenv.2020.142256 · Cited by 141
Fan, X., Ma, Z., Zou, Y., Liu, J., & Hou, J. (2021) · Environmental Research · doi:10.1016/j.envres.2021.110858 · Cited by 135
McDougall, L., Thomson, L., Brand, S., Wagstaff, T. A., Lawton, L. A., & Petrie, B. (2022) · Science of The Total Environment · doi:10.1016/j.scitotenv.2021.152071 · Cited by 108
Cheng, W., Zhou, Y., Xie, Y., Li, Y., Zhou, R., Wang, H., Feng, Y., & Wang, Y. (2023) · Science of The Total Environment · doi:10.1016/j.scitotenv.2022.158585 · Cited by 85
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Metadata
- Authors
- Liu, P., Wu, X., Liu, H., Wang, H., Lu, K., & Gao, S.
- Venue
- Journal of Hazardous Materials
- Publisher
- Elsevier BV
- Published
- 2020-06
- Volume
- 392
- Pages
- 122346
- ISSN
- 0304-3894 (ISSN-L)
- OpenAlex
- W3006893876
- Cited by
- 175
- References
- 7
- FWCI
- 5.23
- Type
- journal article
- Language
- en
- Open access
- closed
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- Liu, P., Wu, X., Liu, H., Wang, H., Lu, K., & Gao, S. (2020). Desorption of pharmaceuticals from pristine and aged polystyrene microplastics under simulated gastrointestinal conditions. Journal of Hazardous Materials. https://doi.org/10.1016/j.jhazmat.2020.122346
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Contains information from the Semantic Scholar Academic Graph Datasets, made available under the ODC Attribution License (ODC-BY 1.0).
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