Generation of nanoplastics during the photoageing of low-density polyethylene

Sorasan, Carmen; Edo, Carlos; González-Pleiter, Miguel; Fernández-Piñas, Francisca; Leganés, Francisco; Rodríguez, Antonio; Rosal, Roberto

doi:10.1016/j.envpol.2021.117919

Cited by 54 publications

(22 citation statements)

References 47 publications

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“…Physical characterization analysis of microplastics can preliminarily determine the particle size, color, shape, morphology, preliminary typing, corrosion degree and aging degree of microplastics (Hidalgo-Ruz et al, 2012). Here, we briefly introduce some main physical characteristics analysis techniques of microplastics including visual analysis (Karlsson et al 2020), dynamic light scattering analysis (Sorasan et al 2021) and laser diffraction particle size analysis.…”

Section: Physical Characterizationmentioning

confidence: 99%

“…Dynamic Light Scattering analysis has great potential in the analysis of nanoplastics. For example, Sorasan et al found through dynamic light scattering analysis that solar photochemical aging can make secondary microplastics produce nanoplastics (Sorasan et al 2021). Nevertheless, similar to laser diffraction particle size analysis, some impurities in environmental samples may interfere with the experimental results.…”

Section: Dynamic Light Scatteringmentioning

confidence: 99%

“…But this technology is rarely applied to the quantification of microplastics (Kaile et al 2020). In view of this, Sorasan et al used flow cytometry to track the formation of small (1-25 μm) microplastics by utilizing Mie's theory to derive the size of microplastic particles from scattering intensity readings (Sorasan et al 2021).…”

Section: Flow Cytometry Measurementsmentioning

confidence: 99%

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Analytical methods for microplastics in the environment: a review

2022

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Microplastic pollution is a recently discovered threat to ecosystems requiring the development of new analytical methods. Here, we review classical and advanced methods for microplastic analysis. Methods include visual analysis, laser diffraction particle, dynamic light scattering, scanning electron microscopy, Fourier-transform infrared spectroscopy, Raman spectroscopy, thermal analysis, mass spectrometry, aptamer and in vitro selection, and flow cytometry.

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Section: Physical Characterizationmentioning

confidence: 99%

Section: Dynamic Light Scatteringmentioning

confidence: 99%

Section: Flow Cytometry Measurementsmentioning

confidence: 99%

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Analytical methods for microplastics in the environment: a review

2022

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“…Biofragmentation of plastics as a result of primarily enzymatic activity follows. Until now, the generation of NPs referred to as particles with the largest dimension below 1 μm, has been demonstrated as part of the degradation of plastic particles mainly due to UV irradiation [13,14] while no studies have demonstrated the presence of NPs due to microbial activity.…”

Section: Materials/ Generation Of Secondary Mpsmentioning

confidence: 99%

“…For example, linear alkane hydrolysis products due to PE biodegradation have been detected while the carbon chain length differed depending on the species of bacteria [39]. These compounds can be classified as NPs if their larger dimension is below 1 µm [14,40]. Moreover, surface corrosion of the MPs takes place following microbial adhesion on the surface [39].…”

Section: Nanoplastics Generation and Fatementioning

confidence: 99%

Nanoplastic Generation from Secondary PE Microplastics: Microorganism-Induced Fragmentation

et al. 2022

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Concern regarding the pollution of the marine environment with plastics has been rising in recent years. Plastic waste residing in and interacting with the environment fragments into secondary particles in the micro- and nanoscale, whose negative impacts on the environment are even greater than those of the parent items. In this work, secondary high density polyethylene (HDPE) and low density polyethylene (LDPE) microplastics were produced by irradiation of virgin films following mechanical fragmentation. The fragments with size ranging from 250 μm to 2 mm were selected for subsequent microcosm experiments. Incubation for 120 days in seawater inoculated with two marine communities, Agios, acclimatized to utilizing plastics as a carbon source, and Souda, as was collected at the Souda bay (Crete, Greece), resulted in biofilm formation by polyethylene (PE) degraders. Monthly FTIR (Fourier-transform infrared spectroscopy) examination of the samples revealed changes in the chemical structure of the surface of the polymers. Dynamic light scattering (DLS) was employed and nano- and microparticles with sizes in the range between 56 nm and 4.5 μm were detected in the seawater of inoculated microcosms. It was thus demonstrated that weathered plastics particles can biodeteriorate and biofragment as a result of biofilm attachment, resulting in the production of nanoplastics due to microbial activity.

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Harmful Effects of Plastics, Microplastics, and Nanoplastics

Kulshrestha,

Rai

2024

Toxic Effects of Micro‐ and Nanoplastics

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Generation of nanoplastics during the photoageing of low-density polyethylene

Cited by 54 publications

References 47 publications

Analytical methods for microplastics in the environment: a review

Analytical methods for microplastics in the environment: a review

Nanoplastic Generation from Secondary PE Microplastics: Microorganism-Induced Fragmentation

Harmful Effects of Plastics, Microplastics, and Nanoplastics

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