Raman Microspectroscopy Detection and Characterisation of Microplastics in Human Breastmilk

Polymers, Journal Year: 2022, Volume and Issue: 14(13), P. 2700 - 2700

Published: June 30, 2022

The widespread use of plastics determines the inevitable human exposure to its by-products, including microplastics (MPs), which enter organism mainly by ingestion, inhalation, and dermal contact. Once internalised, MPs may pass across cell membranes translocate different body sites, triggering specific cellular mechanisms. Hence, potential health impairment caused internalisation accumulation is prime concern, as confirmed numerous studies reporting evident toxic effects in various animal models, marine organisms, lines. In this pilot single-centre observational prospective study, breastmilk samples collected from N. 34 women were analysed Raman Microspectroscopy, and, for first time, MP contamination was found 26 out samples. detected microparticles classified according their shape, colour, dimensions, chemical composition. most abundant composed polyethylene, polyvinyl chloride, polypropylene, with sizes ranging 2 12 µm. data statistically relation patients' (age, personal care products containing plastic compounds, consumption fish/shellfish, beverages, food packaging), but no significant relationship found, suggesting that ubiquitous presence makes inevitable.

Language: Английский

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Microplastic pollution in soil and groundwater: a review

Environmental Chemistry Letters, Journal Year: 2021, Volume and Issue: 19(6), P. 4211 - 4224

Published: Aug. 24, 2021

Language: Английский

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First Evidence of Microplastics in Human Urine, a Preliminary Study of Intake in the Human Body

Toxics, Journal Year: 2022, Volume and Issue: 11(1), P. 40 - 40

Published: Dec. 30, 2022

The ubiquitous presence of microplastics (MPs) and their health effects is a recent scientific topic. However, the investigation MPs in human/biological matrices has several limitations due to analytical methods sample treatment protocols. In this study, urine samples six volunteers from different cities south Italy (three men three women) was investigated by Raman microspectroscopy. analysis pinpointed four pigmented microplastic fragments (4-15 μm size), with irregular shapes, which were characterized terms morphology chemical composition. Polyethylene vinyl acetate (PVA), polyvinyl chloride (PVC), polypropylene (PP), polyethylene (PE) found (PVA PVC one female PP PE male samples). This preliminary study suggests that could pass through gastrointestinal tract are eliminated biological processes.

Language: Английский

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Mechanisms and the Engineering Approaches for the Degradation of Microplastics

ACS ES&T Engineering, Journal Year: 2021, Volume and Issue: 1(11), P. 1481 - 1501

Published: Sept. 30, 2021

Microplastic waste is an emerging global issue due to its environmental effect of accumulation in ecosystems, and managing systems have given rise presence the aquatic environment. It gaining attention persistent nature potential adverse effects on living organisms. There urgent need for development efficient degradation methods microplastic (MP) treatment. In this review, a comprehensive overview current MPs, such as biological, photo, chemical, mechanical been summarized discussed detail. All fundamental mechanisms MP natural environment are linked with remediation approaches accelerate these that occur nature. Decomposition efficiency applied system's limitations has also mentioned. Furthermore, knowledge gaps about decomposition, future research directions proposed. This work offers summary decomposition provides reference control pollution.

Language: Английский

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Recent insights into uptake, toxicity, and molecular targets of microplastics and nanoplastics relevant to human health impacts

iScience, Journal Year: 2023, Volume and Issue: 26(2), P. 106061 - 106061

Published: Jan. 28, 2023

Microplastics and nanoplastics (M-NPLs) are ubiquitous environmentally, chemically, or mechanically degraded plastic particles. Humans exposed to M-NPLs of various sizes types through inhalation contaminated air, ingestion water food, other routes. It is estimated that Americans ingest tens thousands millions particles yearly, depending on socioeconomic status, age, gender. have spurred interest in toxicology because their abundance, nature, ability penetrate bodily cellular barriers, producing toxicological effects cells, tissues, organs, organ systems. The present review paper highlights: (1) current knowledge understanding the detrimental mouse models human cell lines, (2) organelle localization M-NPLs, underlying uptake mechanisms focusing endocytosis, (3) possible pathways involved toxicity, particularly reactive oxygen species, nuclear factor-erythroid factor 2-related 2 (NRF2), Wnt/β-Catenin, Nuclear Factor Kappa B (NF-kB)-regulated inflammation, apoptosis, autophagy signaling. We also highlight potential role increasing incubation time, spread, transport COVID-19 virus. Finally, we discuss future prospects this field.

Language: Английский

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A microscopic survey on microplastics in beverages: the case of beer, mineral water and tea

The Analyst, Journal Year: 2022, Volume and Issue: 147(6), P. 1099 - 1105

Published: Jan. 1, 2022

It has been reported that microplastics exist ubiquitously in aquatic and terrestrial environments. Microplastic surveys on diverse daily foods with high consumption possibly containing have essential implications clarifying the contamination routes, health risk assessment, thereby preventing food pollution. Given dependence of microplastic pollution regional environment, production transportation, it further remains an open question number, size distribution type from different countries worldwide. Here, we show drinks produced worldwide, including beer, mineral water tea, are all polluted without exception. The number investigated this work lies range 20-80 mL-1 for beers, 10 bottled water, 200-500 g-1 tea leaves. Quasi-spherical particles irregular fragments dominate shape beer whereas leaves carry numerous fibers. By identification through Raman spectroscopy, observed presence polystyrene (PS) polypropylene (PP) PP polyethylene (PE) terephthalate (PET) Possible sources include raw materials, atmosphere, tools containers release microplastics. facile adsorption heavy metals antibiotics to beverages, public concern may arise regarding accumulation chain their synergetic harmful effect. Thus, our results should inspire efforts contribute elimination removal foods.

Language: Английский

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State of the art in the photochemical degradation of (micro)plastics: from fundamental principles to catalysts and applications

Journal of Materials Chemistry A, Journal Year: 2023, Volume and Issue: 11(6), P. 2503 - 2527

Published: Jan. 1, 2023

Plastics and microplastics are major environmental pollutants due to wide applications difficult degradations. Herein, we summarize several studies on degradations of (micro)plastics value-added products intermediates via photocatalysis.

Language: Английский

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Microplastics – An emerging contaminants for algae. Critical review and perspectives

The Science of The Total Environment, Journal Year: 2023, Volume and Issue: 885, P. 163842 - 163842

Published: May 2, 2023

Language: Английский

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In Vivo Tissue Distribution of Polystyrene or Mixed Polymer Microspheres and Metabolomic Analysis after Oral Exposure in Mice

Environmental Health Perspectives, Journal Year: 2024, Volume and Issue: 132(4)

Published: April 1, 2024

Global plastic use has consistently increased over the past century with several different types of plastics now being produced. Much these end up in oceans or landfills leading to a substantial accumulation environment. Plastic debris slowly degrades into microplastics (MPs) that can ultimately be inhaled ingested by both animals and humans. A growing body evidence indicates MPs cross gut barrier enter lymphatic systemic circulation tissues such as lungs, liver, kidney, brain. The impacts mixed exposure on tissue function through metabolism remains largely unexplored.

Language: Английский

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A review on microplastics in major European rivers

Wiley Interdisciplinary Reviews Water, Journal Year: 2024, Volume and Issue: 11(3)

Published: Jan. 6, 2024

Abstract The topic of riverine microplastics is great interest to the general public, yet univocal scientific knowledge on this limited. This review investigated occurrence in 6 major European rivers and their tributaries based results from 29 studies. We examined reviewed studies regard data quality reproducibility assessed abundance different sections water column. Furthermore, we chemical composition potential origin reported microplastics. found that polystyrene, polypropylene, polyethylene were most abundant polymer types. majority primary arose industry sector as well personal care cleaning products, whereas secondary constituted fibers synthetic textiles fragments diverse origins. highlighted diversity experimental analytical approaches could lead high uncertainties measurements abundance. presence was vary spatially likely due point nonpoint pollution sources anthropogenic activities. Heterogenous environmental processes impacted fate characterized by various forms, sizes, densities, ways. impeded identification representative quantitative across time frames. advocate for development standardized protocols research community ensure higher sampling, processing, analysis aquatic environments. recommend long‐term site‐specific monitoring with comparability better inform policy making. article categorized under: Science Water > Quality Life Conservation, Management, Awareness

Language: Английский

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