Treatment processes to eliminate potential environmental hazards and restore agronomic value of sewage sludge: A review

Environmental Pollution, Journal Year: 2021, Volume and Issue: 293, P. 118564 - 118564

Published: Nov. 24, 2021

Language: Английский

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The Role of Silver Nanoparticles in Electrochemical Sensors for Aquatic Environmental Analysis

Sensors, Journal Year: 2023, Volume and Issue: 23(7), P. 3692 - 3692

Published: April 2, 2023

With rapidly increasing environmental pollution, there is an urgent need for the development of fast, low-cost, and effective sensing devices detection various organic inorganic substances. Silver nanoparticles (AgNPs) are well known their superior optoelectronic physicochemical properties, have, therefore, attracted a great deal interest in sensor arena. The introduction AgNPs onto surface two-dimensional (2D) structures, incorporation into conductive polymers, or within three-dimensional (3D) nanohybrid architectures common strategy to fabricate novel platforms with improved chemical physical properties analyte sensing. In first section this review, main wet reduction approaches successful synthesis functional electrochemical applications discussed. Then, brief on principles voltammetric amperometric sensors given. current utilization silver silver-based composite nanomaterials fabrication as pollutants water matrices summarized. Finally, challenges future directions nanosilver-based outlined.

Language: Английский

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Review on fate, transport, toxicity and health risk of nanoparticles in natural ecosystems: Emerging challenges in the modern age and solutions toward a sustainable environment

The Science of The Total Environment, Journal Year: 2023, Volume and Issue: 912, P. 169331 - 169331

Published: Dec. 15, 2023

Language: Английский

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Oxidative stress and potential effects of metal nanoparticles: A review of biocompatibility and toxicity concerns

Environmental Pollution, Journal Year: 2024, Volume and Issue: 346, P. 123617 - 123617

Published: Feb. 21, 2024

Language: Английский

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Trends, risks and opportunities in environmental nanotechnology

Nature Reviews Earth & Environment, Journal Year: 2024, Volume and Issue: 5(8), P. 572 - 587

Published: July 23, 2024

Language: Английский

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From microalgae to gastropods: Understanding the kinetics and toxicity of silver nanoparticles in freshwater aquatic environment

Environmental Pollution, Journal Year: 2025, Volume and Issue: 367, P. 125643 - 125643

Published: Jan. 5, 2025

Silver nanoparticles (AgNPs) are increasingly used in various consumer products and industrial applications, raising concerns about their environmental impact on aquatic ecosystems. This study investigated the physicochemical stability, trophic transfer, toxic effects of citrate-coated AgNPs a freshwater food chain including diatom Cyclotella meneghiniana gastropod Lymnaea stagnalis. remained stable exposure medium, with minimal dissolution (<0.06%) after 24 h, indicating that particulate forms dominated during exposure. inhibited growth C. without significantly affecting chlorophyll-a content or reactive oxygen species (ROS) production. Scanning electron microscopy revealed extracellular polymeric substance (EPS) secretion, which likely formed eco-coronas, reducing bioavailability oxidative damage. However, trace element analysis showed significant depletion iron, manganese, nickel, early metabolic stress redistribution essential metals to support antioxidant defenses. In L. stagnalis, toxicokinetic distinct patterns Ag uptake depuration across routes. Waterborne foodborne resulted similar higher accumulation compared combined group. highest non-eliminable fraction bioconcentration factor (BCF) > 1, efficient retention. Foodborne exhibited biomagnification (BMF) despite elimination. Combined had rate, BCF >1 BMF <1, reflecting reduced transfer potential. Oxidative stagnalis was exposure, increased ROS hemolymph uptake. caused prolonged immune stress, evidenced by elevated total capacity (TAC) protein levels. hepatopancreas, led lipid peroxidation TAC, challenges specific dietary These results highlighted complex interactions primary producers consumers ecosystems, emphasizing need for multi-route assessments nanoparticle risk evaluations.

Language: Английский

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Roadmap of environmental health research on emerging contaminants: Inspiration from the studies on engineered nanomaterials

Eco-Environment & Health, Journal Year: 2022, Volume and Issue: 1(3), P. 181 - 197

Published: Sept. 1, 2022

Research on environmental health of emerging contaminants is critical to understanding their risks before causing severe harm. However, the low concentrations, complex behaviors, and toxicology present enormous challenges for researchers. Here, we reviewed research engineered nanomaterials (ENMs), one typical contaminants, enlighten pathways future at initial exploratory stage. To date, some developed pretreatment methods detection technologies have been established determination ENMs in natural environments. The mechanisms underlying transfer transformation systematically explored laboratory studies. ENMs-induced toxicity also preliminarily clarified genetic, cellular, individual short food chain levels, providing not only a theoretical basis revealing risk change effects environments, but methodological guidance studying other contaminants. Nonetheless, due interaction multiple factors high diversity organisms observed studies likely differ from those We propose holistic approach mesocosmic model ecosystems carry out obtaining data that determine objectivity accuracy assessment.

Language: Английский

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Roles of humic substances redox activity on environmental remediation

Journal of Hazardous Materials, Journal Year: 2022, Volume and Issue: 435, P. 129070 - 129070

Published: May 4, 2022

Language: Английский

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Distribution of Silver (Ag) and Silver Nanoparticles (AgNPs) in Aquatic Environment

Water, Journal Year: 2023, Volume and Issue: 15(7), P. 1349 - 1349

Published: March 31, 2023

Nanomaterials, classified as emerging pollutants that are toxic to the environment, known bioaccumulate across different trophic levels in aquatic ecosystem. This study therefore investigates distribution of silver and nanoparticles (AgNPs) environment Skudai River, Johor, Malaysia. Water, sediment, plant, fish samples were collected seasonally along four sites River between May 2018 April 2019. All subjected Ag analysis using an inductively coupled plasma mass spectrometer (ICP-MS). The demonstrated concentration detected water ranging from 0.001 0.505 mg/L was lowest, whereas plants, 0.235 4.713 mg/kg quantified. upper sediments contained 0.036 28.115 Ag, whilst presented highest accumulation averaging 9.144 53.784 Ag. Subsequently, formation further proven by TEM-EDX analysis, where size AgNPs ranged 20 nm 35 nm. overriding conclusion implied bioaccumulation factor (BAF) biota–sediment (BSAF) calculations suggested indeed polluted AgNPs. values obtained stipulated is occurring at alarming rate could endanger consumers.

Language: Английский

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Toxic Effects and Mechanisms of Silver and Zinc Oxide Nanoparticles on Zebrafish Embryos in Aquatic Ecosystems

Nanomaterials, Journal Year: 2022, Volume and Issue: 12(4), P. 717 - 717

Published: Feb. 21, 2022

The global application of engineered nanomaterials and nanoparticles (ENPs) in commercial products, industry, medical fields has raised some concerns about their safety. These may gain access into rivers marine environments through industrial or household wastewater discharge thereby affect the ecosystem. In this study, we investigated effects silver (AgNPs) zinc oxide (ZnONPs) on zebrafish embryos aquatic environments. We aimed to characterize AgNP ZnONP aggregates natural waters, such as lakes, reservoirs, rivers, determine whether they are toxic developing embryos. Different mechanisms were by measuring survival rate, hatching body length, reactive oxidative stress (ROS) level, apoptosis, autophagy. Spiking AgNPs ZnONPs water samples led significant acute toxicity embryos, whereas level was relatively low when compared Milli-Q (MQ) water, indicating interaction transformation with complex components a environment that reduced toxicity. ZnONPs, but not AgNPs, triggered delay embryo hatching. Zebrafish exposed filtered spiked exhibited increased ROS levels, lysosomal activity, an indicator Since autophagy is considered early ENP interactions cells been recognized important mechanism ENP-induced toxicity, transgenic system detect be ideal strategy for predicting possible ecotoxicity can applied future risk assessment ENPs.

Language: Английский

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