Physicochemical and biological ageing processes of (micro)plastics in the environment: a multi-tiered study on polyethylene Article Swipe
Gilberto Binda
,
Giorgio Zanetti
,
Arianna Bellasi
,
Davide Spanu
,
Ginevra Boldrocchi
,
Roberta Bettinetti
,
Andrea Pozzi
,
Luca Nizzetto
·
YOU?
·
· 2022
· Open Access
·
· DOI: https://doi.org/10.21203/rs.3.rs-1589987/v1
YOU?
·
· 2022
· Open Access
·
· DOI: https://doi.org/10.21203/rs.3.rs-1589987/v1
Pollution by plastic and microplastic impacts the environment globally. Knowledge on the ageing mechanisms of plastics in natural settings is needed to understand their environmental fate and interaction with biota. The study of physicochemical and biological ageing is gaining focus in the context of the environmental sciences. However experimental research has typically assessed individual ageing processes, isolating them from a more realistic and complex environmental context where multiple factors are simultaneously at play. An over-simplistic approach can limit the comprehension of the phenomenon and prevent ranking the prevalent processes. In this study we propose a multi-tiered approach to study the environmental ageing of polyethylene plastic fragments focusing on the combined assessment of physical and biological processes, in sequence. The ageing protocol included Ultraviolet (UV) irradiation in air and in a range of water solutions, followed by a biofouling test. Changes in surface characteristics were assessed by Fourier transform infrared spectroscopy and scanning electron microscopy. UV irradiation both in air and water caused a significant increase in the density of oxidized groups on plastic surface, whereby water solution chemistry influenced the process both by modulating surface oxidation and morphology. Biofouling too, was a strong determinant of surface alterations, regardless the prior irradiation treatments. This suggests that biological-driven alterations are not affected by the level of chemical-physical ageing and may represent, in real settings, a main driver of alteration of both weathered and pristine plastics. This work highlights the potential pivotal role of biofouling as a main process of plastic ageing, providing useful technical insights for future experimental works. These results also confirms that a multi-tiered experimental approach is necessary for a complete characterization of the environmental ageing of plastics.
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- Type
- preprint
- Language
- en
- Landing Page
- https://doi.org/10.21203/rs.3.rs-1589987/v1
- https://www.researchsquare.com/article/rs-1589987/latest.pdf
- OA Status
- gold
- Cited By
- 3
- References
- 76
- Related Works
- 10
- OpenAlex ID
- https://openalex.org/W4280568291
All OpenAlex metadata
Raw OpenAlex JSON
- OpenAlex ID
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https://openalex.org/W4280568291Canonical identifier for this work in OpenAlex
- DOI
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https://doi.org/10.21203/rs.3.rs-1589987/v1Digital Object Identifier
- Title
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Physicochemical and biological ageing processes of (micro)plastics in the environment: a multi-tiered study on polyethyleneWork title
- Type
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preprintOpenAlex work type
- Language
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enPrimary language
- Publication year
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2022Year of publication
- Publication date
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2022-05-13Full publication date if available
- Authors
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Gilberto Binda, Giorgio Zanetti, Arianna Bellasi, Davide Spanu, Ginevra Boldrocchi, Roberta Bettinetti, Andrea Pozzi, Luca NizzettoList of authors in order
- Landing page
-
https://doi.org/10.21203/rs.3.rs-1589987/v1Publisher landing page
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https://www.researchsquare.com/article/rs-1589987/latest.pdfDirect link to full text PDF
- Open access
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YesWhether a free full text is available
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goldOpen access status per OpenAlex
- OA URL
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https://www.researchsquare.com/article/rs-1589987/latest.pdfDirect OA link when available
- Concepts
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Ageing, Polyethylene, Biochemical engineering, Nanotechnology, Materials science, Engineering, Composite material, Biology, GeneticsTop concepts (fields/topics) attached by OpenAlex
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3Total citation count in OpenAlex
- Citations by year (recent)
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2023: 2, 2022: 1Per-year citation counts (last 5 years)
- References (count)
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76Number of works referenced by this work
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10Other works algorithmically related by OpenAlex
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