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61,005 resultsShowing papers similar to Mechanisms of eco-corona effects on micro(nano)plastics in marine medaka: Insights into translocation, immunity, and energy metabolism
ClearAggravated Visual Toxicity of Eco-Corona on Micro(Nano)Plastics in Marine Medaka (Oryzias melastigma)
Researchers studied how a natural coating of biomolecules, called an eco-corona, that forms on micro and nanoplastics in seawater affects their toxicity to the eyes of marine medaka fish. They found that the eco-corona actually worsened visual damage compared to bare plastic particles, causing more severe retinal injury and eye cell death. The study reveals that the real-world biological coating on ocean plastics can amplify rather than reduce their harmful effects on marine life.
Aggravated VisualToxicity of Eco-Corona on Micro(Nano)Plasticsin Marine Medaka (Oryzias melastigma)
Researchers investigated how eco-corona formation—the coating of proteins and organic matter on micro- and nanoplastic surfaces in seawater—aggravated visual toxicity in marine medaka fish, finding that eco-corona altered particle uptake and enhanced phototoxic effects in ocular tissue.
Ecotoxicological significance of bio-corona formation on micro/nanoplastics in aquatic organisms
This review examined the ecotoxicological significance of bio-corona formation on micro- and nanoplastics in aquatic organisms, exploring how protein and biomolecule coatings alter the bioavailability, toxicity, and environmental fate of plastic particles.
The Composition of the Eco-corona Acquired by Micro- and Nanoscale Plastics Impacts on their Ecotoxicity and Interactions with Co-pollutants
This review examines how the 'eco-corona' — a layer of environmental biomolecules adsorbing onto plastic particle surfaces — alters the toxicity, transport, and interaction with co-pollutants of micro- and nanoplastics, emphasizing that this biological coating fundamentally changes how plastics behave in living organisms.
Toxicity of micro/nanoplastics in the environment: Roles of plastisphere and eco-corona
This review examines how microplastics and nanoplastics gain biological coatings in the environment: larger microplastics develop a "plastisphere" of microorganisms on their surface, while smaller nanoplastics get wrapped in proteins and organic matter forming an "eco-corona." Both coatings change how toxic the particles are to living organisms and humans. The review highlights that studying plastic particles without these coatings, as most lab experiments do, may underestimate or mischaracterize their real-world health risks.
Interaction of nanoplastics with extracellular polymeric substances (EPS) in the aquatic environment: A special reference to eco-corona formation and associated impacts
This review examines how nanoplastics in aquatic environments interact with natural biomolecules to form an eco-corona coating that fundamentally changes their behavior and ecological impact. Researchers found that this biological coating alters the surface chemistry, transport, and toxicity of nanoplastic particles in ways that depend on environmental conditions. The study highlights that understanding eco-corona formation is essential for accurately assessing the real-world risks of nanoplastic pollution.
Eco-corona formation and associated ecotoxicological impacts of nanoplastics in the environment
This review examines how nanoplastics interact with natural organic matter in the environment to form an 'eco-corona,' a coating of biomolecules on the particle surface that changes their behavior and toxicity. Researchers found that eco-corona formation alters nanoplastic stability, transport, and biological interactions in ways that can either increase or decrease their harmful effects on organisms. The study highlights the importance of considering these surface transformations when assessing the real-world environmental risks of nanoplastic pollution.
Secreted protein eco-corona mediates uptake and impacts of polystyrene nanoparticles on Daphnia magna
Researchers discovered that proteins secreted by Daphnia magna create an eco-corona around polystyrene nanoparticles, increasing their uptake and toxicity. The study found that this protein coating also made the nanoparticles harder to remove from the gut, demonstrating a previously unknown biological mechanism that enhances the harmful effects of nanoplastics on this important indicator species.
Fate of polystyrene micro- and nanoplastics in zebrafish liver cells: Influence of protein corona on transport, oxidative stress, and glycolipid metabolism
Scientists studied how proteins in biological fluids coat nanoplastic particles (forming a "protein corona") and how this coating changes the way cells take up and process the plastics. The protein coating actually increased how many nanoplastics entered liver cells and made them harder to clear out, suggesting that once nanoplastics enter the bloodstream, the body's own proteins may make the contamination harder to eliminate.
The interaction of micro/nano plastics and the environment: Effects of ecological corona on the toxicity to aquatic organisms.
This review examines how the ecological corona — the layer of organic matter, proteins, and microbes that form on micro- and nanoplastic surfaces in water — affects their toxicity to aquatic organisms. The ecological corona can either increase or decrease toxicity depending on its composition, making real-world plastic hazard assessment more complex than laboratory tests with clean particles suggest.
Eco-corona enhanced the interactive effects of nanoplastics and 6:2 chlorinated polyfluorinated ether sulfonate in zebrafish embryos
Researchers investigated how a natural coating called an eco-corona, formed from organic molecules in the environment, changes the way nanoplastics interact with a chemical pollutant in zebrafish embryos. They found that the eco-corona enhanced the combined toxic effects of nanoplastics and the co-occurring pollutant, leading to greater developmental harm. The study suggests that the real-world toxicity of nanoplastics may be worse than laboratory tests with clean particles indicate.
Interactions between micro(nano)plastics and natural organic matter: implications for toxicity mitigation in aquatic species
This review examines how natural organic matter found in water can reduce the harmful effects of micro- and nanoplastics on aquatic species. Researchers found that natural organic matter forms a coating called an eco-corona on plastic particles, which can decrease their toxicity to organisms like fish and water fleas. The findings suggest that the natural composition of waterways plays an important role in moderating the ecological impact of plastic pollution.
Cellular internalization pathways of environmentally exposed microplastic particles: Phagocytosis or Macropinocytosis?
Researchers investigated how eco-corona formation on environmentally exposed microplastic particles affects their cellular internalization pathways, examining whether particles coated with biomolecules from freshwater or saltwater are taken up by cells via phagocytosis or macropinocytosis, with findings showing that protein ligands in the eco-corona influence cell membrane receptor interactions and thus uptake mechanisms.
Nanoplastics and the Role of the Corona in the Biological Responses of Daphnia magna
Researchers exposed Daphnia magna neonates to nanoplastics coated with biomolecules from fetal bovine serum, Daphnia secretions, or algae, finding that coatings altered nanoplastic surface properties and affected internalization and biological responses differently depending on the biomolecule source.
Biofilm (Eco-Corona) Formation from Microplastics in Freshwater
This review examines eco-corona and biofilm formation on microplastics in freshwater environments, explaining how microbial colonization of plastic surfaces changes their buoyancy, surface chemistry, and biological interactions, with implications for MP transport and ecotoxicity.
Nanoplastics andthe Role of the Corona in the BiologicalResponses of Daphnia magna
Researchers studied how biomolecule coatings from fetal bovine serum, Daphnia secretions, and algae affected nanoplastic toxicity in Daphnia magna, finding that coatings altered the nanoplastic surface and affected internalization and biological responses differently depending on the biomolecule source.
Interactions of microplastics throughout the marine ecosystem
This conceptual review developed the idea of microplastic as a complex, dynamic mixture that accumulates organic material and contaminants into an 'ecocorona', changing particles' bioavailability and toxicity over time. The authors examined evidence for how chronic microplastic exposure reduces feeding, depletes energy, and impairs fecundity and growth across marine species.
Interactions of microplastic debris throughout the marine ecosystem
Researchers synthesized evidence on how microplastics function as dynamic mixtures of polymers, additives, and adsorbed organic contaminants — forming an 'ecocorona' — and reviewed how chronic exposure reduces feeding, depletes energy reserves, impairs fecundity, and may alter ecosystem processes including carbon flux to the deep ocean.
Micro-Nano Plastics in Aquatic Environments: Associated Health Impacts and Mitigation Strategies
This review examines how micro- and nanoplastics in aquatic environments are biologically transferred up the food chain, covering the factors that influence particle bioavailability, accumulation in organisms, and trophic transfer — with implications for both aquatic ecosystem health and human dietary exposure.
Understanding the role of (bio)minerals and metals on marine plastic biogeochemistry and degradation processes
This review examines how minerals, metals, and biological material that accumulate on marine plastic surfaces—collectively the eco-corona—affect plastic buoyancy, degradation rates, and interaction with marine organisms. The authors find that eco-corona formation is rapid and fundamentally alters plastic biogeochemistry, influencing which organisms encounter plastics and how toxic chemicals are transferred.
Interplay between extracellular polymeric substances (EPS) from a marine diatom and model nanoplastic through eco-corona formation
Researchers incubated polystyrene nanoplastics with extracellular polymeric substances secreted by a marine diatom and found that these biological molecules rapidly formed an "eco-corona" coating on the nanoparticles, significantly slowing their aggregation and reducing oxidative stress in algae — suggesting that natural organic matter in seawater substantially alters nanoplastic behavior and toxicity.
Aquatic organisms modulate the bioreactivity of engineered nanoparticles: focus on biomolecular corona
This review examines how aquatic organisms influence the bioreactivity of engineered nanoparticles through the formation of a biomolecular corona in environmental settings. Researchers found that biological molecules shed by organisms can coat nanoparticle surfaces and significantly alter their behavior, toxicity, and fate in aquatic ecosystems beyond what standard laboratory toxicity studies capture.
Coronas of micro/nano plastics: a key determinant in their risk assessments
This review examines how micro- and nanoplastics develop surface coatings called coronas when they interact with biological and environmental substances. These corona layers, formed from proteins, organic matter, and other materials, can significantly change how plastic particles behave in the body and environment, affecting their uptake, distribution, and toxicity. The study suggests that understanding these surface coatings is essential for accurately assessing the real-world risks of plastic particle exposure.
Trophic Transfer of Differentially Hydrophobic Nanoplastics along Marine Food Chains and Related Toxicity
Researchers studied how surface hydrophobicity affects the movement of nanoplastics through a marine food chain from algae to mysids to fish. They found that more hydrophobic nanoplastics accumulated at significantly higher levels in organisms at each stage of the food chain, suggesting that surface properties play an important role in determining how nanoplastics bioaccumulate in marine ecosystems.