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Prolonged survival time of Daphnia magna exposed to polylactic acid breakdown nanoplastics.
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- معلومة اضافية
- المصدر:
Publisher: Public Library of Science Country of Publication: United States NLM ID: 101285081 Publication Model: eCollection Cited Medium: Internet ISSN: 1932-6203 (Electronic) Linking ISSN: 19326203 NLM ISO Abbreviation: PLoS One Subsets: MEDLINE
- بيانات النشر:
Original Publication: San Francisco, CA : Public Library of Science
- الموضوع:
- نبذة مختصرة :
Polylactic acid nanoparticles (PLA NPs) according to food and drug administration are biodegradable and biocompatible polymers that have received a lot of attention due to their natural degradation mechanism. Although there is already available information concerning the effects of PLA microplastic to aquatic organisms, the knowledge about PLA NPs is still vague. In the present study, we analyzed the chemical composition of engineered PLA NPs, daily used PLA items and their breakdown products. We show that PLA breakdown products are oxidized and may contain aldehydes and/or ketones. The breakdown produces nanosized particles, nanoplastics, and possibly other small molecules as lactide or cyclic oligomers. Further, we show that all PLA breakdown nanoplastics extended the survival rate in Daphnia magna in an acute toxicity assay, however, only PLA plastic cup breakdown nanoplastics showed a significant difference compared to a control group.
Competing Interests: The authors have declared that no competing interests exist
(Copyright: © 2023 Kelpsiene et al. This is an open access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.)
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- الرقم المعرف:
459TN2L5F5 (poly(lactide))
0 (Plastics)
0 (Microplastics)
0 (Polyesters)
- الموضوع:
Date Created: 20230905 Date Completed: 20230907 Latest Revision: 20230914
- الموضوع:
20231215
- الرقم المعرف:
PMC10479899
- الرقم المعرف:
10.1371/journal.pone.0290748
- الرقم المعرف:
37669271
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