Fluorescence-based detection: A review of current and emerging techniques to unveil micro/ nanoplastics in environmental samples

TrAC Trends in Analytical Chemistry, Journal Year: 2024, Volume and Issue: 172, P. 117559 - 117559

Published: Jan. 25, 2024

Language: Английский

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A particle of concern: explored and proposed underlying mechanisms of microplastic-induced lung damage and pulmonary fibrosis

Inhalation Toxicology, Journal Year: 2025, Volume and Issue: unknown, P. 1 - 17

Published: Feb. 11, 2025

In the past decade, microplastics (MPs) have drawn significant attention as widespread environmental contaminants, with research increasingly highlighting their harmful effects on respiratory health in aquatic and terrestrial organisms. Findings revealed human lung tissues, raising concerns about potential role damaging tissue integrity contributing to pulmonary fibrosis-a chronic inflammatory condition characterized by scarring of epithelial tissues due accumulated extracellular matrix, triggered factors such alcohol, pathogens, genetic mutations, pollutants. this review, we explore both well-studied lesser-studied mechanisms signaling pathways, aiming shed light how might act mediators that activate distinct, often overlooked cascades. This review searched PubMed Google Scholar using keywords like "plastic," "microplastic," "lung fibrosis," "pulmonary system," "exposure route," "signaling pathways," combined "OR" "AND" singular plural forms. These pathways could not only induce damage but also play a development fibrosis. be targeted reduce microplastic-induced fibrosis, opening new avenues for future treatments.

Language: Английский

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Rapid sand filtration for <10 μm-sized microplastic removal in tap water treatment: Efficiency and adsorption mechanisms

The Science of The Total Environment, Journal Year: 2023, Volume and Issue: 912, P. 169074 - 169074

Published: Dec. 4, 2023

Language: Английский

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Differentiating Microplastics from Natural Particles in Aqueous Suspensions Using Flow Cytometry with Machine Learning

Environmental Science & Technology, Journal Year: 2024, Volume and Issue: 58(23), P. 10240 - 10251

Published: May 28, 2024

Microplastics (MPs) in natural waters are heterogeneously mixed with other particles including algal cells and suspended sediments. An easy-to-use rapid method for directly measuring distinguishing MPs from naturally present colloids the environment would expedite analytical workflows. Here, we established a database of MP scattering fluorescence properties, either alone or mixtures particles, by stain-free flow cytometry. The resulting high-dimensional data were analyzed using machine learning approaches, unsupervised (e.g., viSNE) supervised random forest algorithms). We assessed our approach identifying quantifying model diverse sizes, morphologies, polymer compositions various suspensions phototrophic microorganisms, biofilms, mineral sediment. could precisely quantify microbial phototrophs sediments high organic carbon both models (identification accuracies over 93%), although it was not possible to distinguish between different sizes compositions. By testing environmental samples through spiking into freshwater samples, further highlight applicability be used as screening tool MPs. Collectively, this workflow can easily applied set assess presence time-efficient manner.

Language: Английский

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Enhancing microplastic removal from natural water using coagulant aids

Chemosphere, Journal Year: 2024, Volume and Issue: 364, P. 143145 - 143145

Published: Aug. 22, 2024

Microplastic (MP) pollution poses a significant environmental challenge, underscoring the need for improved water treatment methods. This study investigates effectiveness of coagulation, flocculation, and sedimentation processes removing microbeads, focusing on key factors that influence removal efficiency. Among coagulants tested, polyaluminium chloride (PAC) demonstrated superior performance by enhancing aggregation microplastics with flocs. Optimal conditions were determined to be 0.4 mmol/L PAC 3 mg/L polyacrylamide (PAM) at pH 8 (before adding PAC), rapid stirring 240 rpm 1 min, followed slow 35 13 period 25 min. Under these conditions, efficiencies exceeded 95 % range microbeads (10-1000 μm: Polystyrene (PS), Polypropylene (PP), Polyvinyl (PVC), Polyamide (PA), Polyethylene (PE), Polyurethane (PU)) from natural samples. Without PAM, alone achieved 97 rate PS microbeads. The addition PAM maintained high efficiency, while aluminium sulphate ferric less effective, rates 67 48 respectively. enhanced MP across various microbead types, maximum efficiency observed concentrations ≥3 mg/L. also organic matter in Regent's Park pond could further improve removal. Size significantly impacts efficiency: larger (1 mm >250 μm) removed more effectively (95 %) compared smaller ones (10 <250 μm), which had lower 49 %. Denser like PVC (density 1.38 g/cm³) settled efficiently than lighter such as PE 0.97 g/cm³). These findings suggest advanced technologies better remove lighter, MPs water.

Language: Английский

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Reactive Oxygen Species Drive Aging-associated Microplastic Release in Diverse Infusion Ingredients

Journal of Hazardous Materials, Journal Year: 2025, Volume and Issue: 490, P. 137728 - 137728

Published: Feb. 25, 2025

Language: Английский

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Microplastics in Water Resources: Threats and Challenges

Applied Sciences, Journal Year: 2025, Volume and Issue: 15(8), P. 4118 - 4118

Published: April 9, 2025

This study is a review of current knowledge on microplastics (MPs) in aquatic environments. In addition to identifying the sources contamination by MPs water and hazards their presence, an attempt made systematize terminology polymeric microparticles according size describe other parameters characteristic MPs, i.e., shape color. Special focus was placed most important methods used extract from environmental matrices, as well latest effective analytical methods, highlighting advantages disadvantages. The value paper pointing out developments analytics, existing inaccuracies limitations field providing practical guidance. Thanks its comprehensive approach, this article valuable resource for researchers concerned with problem pollution.

Language: Английский

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Exploring the transformation of polyethylene and polyamide microplastics during membrane filtration through FlowCam analysis

Separation and Purification Technology, Journal Year: 2023, Volume and Issue: 334, P. 126036 - 126036

Published: Dec. 13, 2023

Language: Английский

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Potential health, environmental implication of microplastics: A review on its detection

Journal of Contaminant Hydrology, Journal Year: 2024, Volume and Issue: unknown, P. 104467 - 104467

Published: Nov. 1, 2024

Language: Английский

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Quantifying Microplastic Leaching from Paper Cups: A Specklegram Image Analytical Approach

Photonics, Journal Year: 2024, Volume and Issue: 11(12), P. 1121 - 1121

Published: Nov. 27, 2024

The study proposes a novel speckle interferometric method for detecting and quantifying microplastic leaching from paper cups, addressing concerns raised by the World Health Organization regarding human health risks. Hot water at varying temperatures is placed in 36 cups different manufacturers, specklegrams of cups’ interior surface are recorded. quantity microplastics leached into estimated Neubauer chamber method, which increases with rising temperature. Surface morphology analysis through atomic force microscopic images reveals thermal-induced melting smearing microplastics, decreasing roughness parameters. Co-occurrence matrix correlates image parameters—inertia moment, homogeneity, energy, contrast, entropy—with count, showing modifications altered pixel intensity distribution increasing Regression equations based on parameters establish strong correlation that validated against method. indicates contrast as potential sensitive specklegram feature detection quantification.

Language: Английский

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