Advanced green capture of microplastics from different water matrices by surface-modified magnetic nanoparticles

Separation and Purification Technology, Journal Year: 2024, Volume and Issue: 354, P. 128813 - 128813

Published: July 20, 2024

The extensive production and application of plastic in recent decades has resulted the presence microplastics (MPs) different water bodies. Considered as contaminants emerging concern (CECs), MPs are accessible to a wide range organisms can act vectors for transport other persistent organic pollutants. existing technologies remove from wastewaters prevent their intrusion nature, still present several limitations, resulting an urgent need develop novel, fast, cost-effective greener alternatives. In this work, magnetophoretic capture by assembly with magnetic nanoparticles through either electrostatic interactions or molecular forces is investigated. For experimental assessment, were synthesized hydrothermal coprecipitation solvothermal decomposition methods, while polyethylene (PE) microspheres selected model microplastic As noteworthy novelty, thermal particles functionalized amino groups sodium alginate (SA), respectively, modification surface properties enhanced MPs. After preliminary experiments, concentration 1.3 g L-1 contact time 20 min between MPs, operating conditions assess influence functional on performance. variables process was also evaluated, including synthesis method, pH medium, varied 4–8, constituents that may be Results demonstrated types polar make them interact towards attraction forces, considerably enhancing performance bare nanoparticles. This work represents step forward development new reliable techniques environmentally friendly polluted waters.

Language: Английский

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Microplastics in water resources: Global pollution circle, possible technological solutions, legislations, and future horizon

The Science of The Total Environment, Journal Year: 2024, Volume and Issue: 946, P. 173963 - 173963

Published: June 18, 2024

Language: Английский

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Bridging the Gaps between Microplastics and Human Health

Microplastics, Journal Year: 2024, Volume and Issue: 3(1), P. 46 - 66

Published: Jan. 11, 2024

Given the broad and intense use of plastic, society is being increasingly affected by its degradation by-products, particularly microplastics (MPs), fragments smaller than 5 mm in size, nanoplastics (NPs), with sizes less 1 µm. MPs NPs may enter body primarily through inhalation, consumption, skin contact. Once ingested, can penetrate tissues, deviating to other parts potentially affecting important cellular pathways such as nonconforming chemokine receptors that control communication between fetus mother. Consequently, potential health harm induced via MP internalization a major issue, evidenced multiple studies demonstrating harmful consequences diverse animal models human cells. Here, an overview various modes exposure presented, including placental transfer, ingestion, breastmilk absorption, well fetal toxicity due plastic particles based on vitro studies. Though our environment are becoming more recognized, their developmental still scarcely known. Besides negatively pregnancy, have been shown developing fetus, given ability cross barrier. Still, considerable gaps remain understanding dispersion these precise types bearing greatest dangers. As result, we advocate for larger-scale epidemiological investigations, development novel approaches measuring NP exposures, necessity kinds guide future research efforts.

Language: Английский

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Passive biomonitoring of airborne microplastics using lichens: A comparison between urban, natural and protected environments

Environment International, Journal Year: 2024, Volume and Issue: 187, P. 108707 - 108707

Published: April 26, 2024

Currently, natural and urban ecosystems are affected by different types of atmospheric deposition, which can compromise the balance environment. Plastic pollution represents one major threats for biota, including lichens. Epiphytic lichens have value as bioindicators environmental pollution, climate change, anthropic impacts. In this study, we aim to investigate lichen bioaccumulation airborne microplastics along an anthropogenic gradient. We sampled from Genera Cladonia Xanthoria highlight effectiveness tools passive biomonitoring microplastics. chose three sites, a "natural site" in Altipiani di Arcinazzo, "protected Castelporziano Presidential estate "urban centre Rome. Overall, 90 lichens, observed external plastic entrapment, melt oxygen peroxide analysed entrapment. To validate method, calculated recovery rates lichen. Particularly, 253 MPs particles were detected across samples: 97 % fibers, 3 fragments. A gradient number microplastic fibers sites emerged, with increasing accumulation site (n = 58) 116), direct relationship between length abundance fibers. Moreover, first evidences mesoplastics entrapped On average, experienced shortest fibre Rome longest. No differences emerged two genera. Our results indicated that effectively be used deposition. scenario, role entrapping protecting pristine areas must investigated. Furthermore, considering impact on human health bioindicators, their use is encouraged.

Language: Английский

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Assessment of microplastic contamination in commercially available fishes

Marine Environmental Research, Journal Year: 2024, Volume and Issue: 196, P. 106412 - 106412

Published: Feb. 16, 2024

Language: Английский

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