Full size microplastics in crab and fish collected from the mangrove wetland of Beibu Gulf: Evidences from Raman Tweezers (1–20 μm) and spectroscopy (20–5000 μm)

Zhang, Shuaipeng; Sun, Yucui; Liu, Beibei; Li, Ruilong

doi:10.1016/j.scitotenv.2020.143504

Cited by 74 publications

(25 citation statements)

References 80 publications

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“…40,41 Individual carbon nanotubes bundles and graphene flakes can be trapped and their nature probed. 39,[42][43][44][45] RTs have been shown to be a promising technology in the field of micro-and nanoplastics pollution in aquatic environments, [46][47][48] thanks to their capability of single particle analysis in liquid media on timescales going from seconds to few minutes.…”

Section: Introductionmentioning

confidence: 99%

Raman tweezers for tire and road wear micro- and nanoparticles analysis

Gillibert

Magazzù

Callegari

et al. 2022

Environ. Sci.: Nano

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Section: Introductionmentioning

confidence: 99%

Raman tweezers for tire and road wear micro- and nanoparticles analysis

Gillibert

Magazzù

Callegari

et al. 2022

Environ. Sci.: Nano

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“…Simon-Sánchez et al, 2019 reached a similar result, where almost 75% of all their detected particles in water were smaller than 500 µm, while 50% were smaller than 200 µm [ 63 ]. Overlooking this size fraction would constitute a critical problem as, apart from their abundance, this is the size class that organisms interact with the most [ 110 , 120 , 124 , 130 , 150 ]. Additionally, to be able to prepare realistic microparticles, this size class needs to be thoroughly characterised.…”

Section: Sampling Separation Identification and Characterisation Of Collected Microplastic Particlesmentioning

confidence: 99%

“…Nonetheless, among those, fibres are still the most abundant particle shape found in the environment [ 27 , 55 , 64 , 68 , 79 , 105 , 130 ]. The second-most abundant shape is still fragments [ 50 , 66 , 89 , 91 ], followed by foam [ 73 , 84 , 90 ], pellets and granules [ 9 , 61 , 86 , 150 ], and films [ 60 ]. Interestingly, Li et al, 2018 found a clear distribution of shapes in mangrove wetlands, stating that fibres were the most dominant inside the mangroves, while they were almost non-existent outside, indicating that fibres were retained by the mangrove roots [ 121 ].…”

Section: Sampling Separation Identification and Characterisation Of Collected Microplastic Particlesmentioning

confidence: 99%

Environmental Microplastic Particles vs. Engineered Plastic Microparticles—A Comparative Review

2021

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Microplastic particles (MPs) pose a novel threat to nature. Despite being first noticed in the 1970s, research on this topic has only surged in recent years. Researchers have mainly focused on environmental plastic particles; however, studies with defined microplastic particles as the sample input are scarce. Furthermore, comparison of those studies indicates a discrepancy between the particles found (e.g., in the environment) and those used for further research (e.g., exposure studies). Obviously, it is important to use particles that resemble those found in the environment to conduct appropriate research. In this review, different categories of microplastic particles are addressed, before covering an overview of the most common separation and analysis methods for environmental MPs is covered. After showing that the particles found in the environment are mostly irregular and polydisperse, while those used in studies with plastic microparticles as samples are often not, different particle production techniques are investigated and suggestions for preparing realistic plastic particles are given.

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“…39 The integration of OT with Raman spectroscopy leads to Raman Tweezers (RT), a powerful tool with unique capabilities for the analysis of micro and nanostructures dispersed in liquid, at the single particle level, 40,41 such as carbon nanotubes and graphene. 39,[42][43][44][45] RTs have been shown to be a promising technology in the field of micro-and nanoplastics pollution in aquatic environments, [46][47][48] thanks to their capability of single particle analysis in liquid media on timescales going from seconds to few minutes.…”

Section: Introductionmentioning

confidence: 99%

Raman Tweezers for Tire and Road Wear Micro- and Nanoparticles analysis

Gucciardi

Gillibert

Magazzù

et al. 2021

Preprint

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Tire and Road Wear Particles (TRWP) are non-exhaust particulate matter generated by road transport means during the mechanical abrasion of tires, brakes and roads. TRWP accumulate on the roadsides and are transported into the aquatic ecosystem during stormwater runoffs. Due to their size (sub-millimetric) and rubber content (elastomers), TRWP are considered microplastics (MPs). While the amount of the MPs polluting the water ecosystem with sizes from ~ 5 μm to more than 100 μm is known, the fraction of smaller particles is unknown due to the technological gap in the detection and analysis of < 5 μm MPs. Here we show that Raman Tweezers, a combination of optical tweezers and Raman spectroscopy, can be used to trap and chemically analyze individual TWRPs in a liquid environment, down to the sub-micrometric scale. Using tire particles mechanically grinded from aged car tires in water solutions, we show that it is possible to optically trap individual sub-micron particles, in a so-called 2D trapping configuration, and acquire their Raman spectrum in few tens of seconds. The analysis is then extended to samples collected from a brake test platform, where we highlight the presence of sub-micrometric agglomerates of rubber and brake debris, thanks to the presence of additional spectral features other than carbon. Our results show the potential of Raman Tweezers in environmental pollution analysis and highlight the formation of nanosized TRWP during wear.

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Full size microplastics in crab and fish collected from the mangrove wetland of Beibu Gulf: Evidences from Raman Tweezers (1–20 μm) and spectroscopy (20–5000 μm)

Cited by 74 publications

References 80 publications

Raman tweezers for tire and road wear micro- and nanoparticles analysis

Raman tweezers for tire and road wear micro- and nanoparticles analysis

Environmental Microplastic Particles vs. Engineered Plastic Microparticles—A Comparative Review

Raman Tweezers for Tire and Road Wear Micro- and Nanoparticles analysis

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