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61,005 resultsShowing papers similar to Simple detection of polystyrene nanoparticles and effects in freshwater mussels: method development and in situ application to urban pollution
ClearMicro and Nanoplastic Contamination and Its Effects on Freshwater Mussels Caged in an Urban Area
Researchers placed freshwater mussels at various sites around Montreal to measure microplastic and nanoplastic contamination in urban waterways. They found that mussels at rainfall overflow sites and downstream of the city center accumulated the most plastic particles, with nanoplastics correlating strongly with oxidative damage markers in tissue. The study suggests that tire wear and road erosion from stormwater runoff are important sources of plastic contamination for aquatic organisms.
Assessment of the impact of aquaculture facilities on transplanted mussels (Mytilus galloprovincialis): Integrating plasticizers and physiological analyses as a biomonitoring strategy
Researchers assessed microplastic impacts on mussels transplanted near aquaculture facilities by integrating plasticizer analysis with physiological biomarkers, finding that proximity to aquaculture infrastructure increased both particle ingestion and chemical plasticizer exposure.
Effects of exposure to nanoplastics on the gill of mussels Mytilus galloprovincialis: An integrated perspective from multiple biomarkers
Researchers exposed Mediterranean mussels to polystyrene nanoplastics for seven days and measured multiple gill biomarkers, finding that nanoplastics triggered oxidative stress, inhibited acetylcholinesterase, disrupted sodium-potassium ion transport, and impaired energy and lipid metabolism, pointing to broad physiological interference in marine invertebrates.
Toxicity assessment of environmental MPs and NPs and polystyrene NPs on the bivalve Corbicula fluminea using a multi-marker approach
Researchers compared the toxicity of commercial polystyrene nanoplastics with environmental micro- and nanoplastics collected from the Garonne River on freshwater bivalves, finding that real-world environmental particles induced distinct biological responses compared to laboratory standards.
Quantitative Analysis of Polystyrene and Poly(methyl methacrylate) Nanoplastics in Tissues of Aquatic Animals
Researchers developed a new method to detect and measure nanoplastics in the tissues of aquatic animals with high sensitivity. Using a combination of tissue digestion and pyrolysis gas chromatography-mass spectrometry, they achieved detection limits as low as 0.03 micrograms per gram for polystyrene nanoplastics. When they tested 14 aquatic animal species, polystyrene nanoplastics were found in three of them, demonstrating that nanoplastic contamination is present in real-world wildlife.
First evidence of protein modulation by polystyrene microplastics in a freshwater biological model
Zebra mussels were exposed to polystyrene microbeads (1 and 10 μm) for 6 days and analyzed by mass spectrometry-based proteomics, with both particle sizes producing significant changes in protein expression linked to oxidative stress, immune function, and cellular structure. The study provides the first proteomic evidence that microplastics disrupt molecular pathways in a freshwater bivalve model organism.
Is blue mussel caging an efficient method for monitoring environmental microplastics pollution?
Researchers compared microplastics ingested by caged depurated blue mussels with those in native mussels and surrounding sediments along a pollution gradient near a WWTP, finding that 93% of transplanted mussels had ingested MPs after 6 weeks. The results validate mussel caging as an effective active biomonitoring method for environmental microplastic levels.
High microplastic exposure affects survival and health of Dreissena spp. mussels: implications for freshwater pollution monitoring
Researchers tested whether Dreissena mussels could serve as bioindicators for freshwater microplastic pollution by exposing them to polyethylene microbeads for two months. At high concentrations, the mussels showed decreased health indicators and increased mortality within 15 days, while lower concentrations had no significant effect. The study supports using these filter-feeding mussels as practical biological monitors for assessing microplastic contamination levels in freshwater ecosystems.
Investigation of Detection Method for Nanoplastics in Shellfish
Researchers investigated detection methods for nanoplastics in shellfish, evaluating analytical techniques capable of identifying and quantifying nanoscale plastic particles in bivalve tissues. The study addresses the methodological challenges of isolating and characterizing nanoplastics from complex biological matrices.
Exploring Nanoplastics Bioaccumulation in Freshwater Organisms: A Study Using Gold-Doped Polymeric Nanoparticles
Researchers developed gold-doped polymer nanoparticles as traceable stand-ins for nanoplastics to study how these tiny particles accumulate in freshwater organisms including algae, zooplankton, and mussels. The approach enables more precise measurement of nanoplastic uptake across the food chain, helping scientists better understand the real-world bioaccumulation risks of plastic pollution in freshwater ecosystems.
Tracking nanoplastics in freshwater microcosms and their impacts to aquatic organisms
Researchers tracked palladium-doped polystyrene nanoplastics in freshwater microcosms and found they caused toxic effects on cyanobacteria, green algae, and crustaceans at varying concentrations, with particle aggregation and surface interactions driving organism-specific impacts.
Detection, counting and characterization of nanoplastics in marine bioindicators: a proof of principle study
Researchers demonstrated a proof-of-concept workflow for detecting and counting nanoplastic particles (below 1 µm) in marine invertebrate tissues using electron microscopy and spectroscopic confirmation, finding nanoplastics in marine bioindicator species and establishing a methodology for future monitoring programs.
Efficacy of freshwater pearl mussel (Lamellidens marginalis) as a biomonitoring tool for assessing microplastic pollution
Laboratory experiments showed that freshwater pearl mussels readily ingested microplastic particles, which then accumulated in their organs and tissues and caused measurable histological damage. This is relevant because freshwater mussels are widely used as biomonitors of water quality, and the findings confirm they can serve as indicators of microplastic pollution while also showing that this pollution harms them.
Toxicological and Biomarker Assessment of Freshwater Zebra Mussels (Dreissena polymorpha) Exposed to Nano-Polystyrene
Researchers exposed freshwater zebra mussels to nano-polystyrene particles at concentrations of 20 to 60 mg/L and measured mortality, feeding rates, and stress biomarker responses. They found that the nanoplastics caused measurable stress responses and affected the mussels' clearance rates at tested concentrations. The study adds to evidence that sub-micron plastic particles can have significant biological impacts on freshwater filter-feeding organisms.
Physiological effects of plastic particles on mussels are mediated by food presence
Thick shell mussels exposed to polystyrene nanoplastics (70 nm) and microplastics (10 µm) with and without microalgae food found that food presence mediated the physiological effects — microplastics reduced energy budget and increased oxidative stress markers most strongly when food was mixed with particles.
Biomimetic Iron-Doped Polydopamine Sensor for Selective Detection of Polystyrene Nanoplastics
Researchers developed a new sensor inspired by mussel adhesion proteins that can detect polystyrene nanoplastics in water samples. The sensor uses an iron-incorporated polydopamine coating that selectively binds to polystyrene particles through molecular interactions, achieving detection efficiencies of 91-96% in tap water tests. This portable technology could enable real-time, on-site monitoring of nanoplastic contamination in drinking water and environmental samples.
Exposure of Mytilus galloprovincialis to Microplastics: Accumulation, Depuration and Evaluation of the Expression Levels of a Selection of Molecular Biomarkers
Researchers exposed Mediterranean mussels to a realistic mixture of microplastic types and then tested whether a standard purification process could remove them. They found that purification significantly reduced microplastic contamination in the mussels and that molecular biomarkers in the gills could detect the biological effects of exposure. The study suggests that both purification protocols and molecular monitoring tools could help address microplastic risks in farmed shellfish.
Microplastics, Additives, and Plasticizers in Freshwater Bivalves: Preliminary Research of Biomonitoring
Freshwater mussels (Anodonta cygnea) deployed in three Italian rivers accumulated microplastics primarily in their gills and digestive tracts, with polyamide (nylon) fibers being the most common type found. The study also detected plasticizers and additives within the bivalves, demonstrating that these organisms can serve as effective sentinels for monitoring the full chemical footprint of plastic pollution in river systems.
Evidence of polystyrene nanoplastic contamination and potential impacts in Mya arenaria clams in the Saint-Lawrence estuary (Canada)
Researchers developed fluorescence-based and size exclusion chromatography methods to detect polystyrene nanoplastics in wild soft-shell clams from the Saint-Lawrence estuary, finding evidence of nanoplastic contamination and associated health impacts near pollution sources.
Extraction and identification of microplastics from mussels: Method development and preliminary results
Scientists developed and validated a method for extracting and identifying microplastics from mussel tissue, then applied it to measure contamination in commercially harvested mussels. The method produced reliable, reproducible results, providing a practical tool for monitoring microplastic levels in one of the world's most widely consumed shellfish.
Trace analysis of polystyrene microplastics in natural waters
Researchers developed and evaluated analytical methods for trace-level quantification of polystyrene microplastics and nanoplastics in natural water samples, addressing key challenges in sensitivity and accuracy that limit realistic environmental risk assessment.
Plastic Analysis with a Plasmonic Nano-Gold Sensor Coated with Plastic-Binding Peptides
Researchers developed a nano-gold sensor coated with plastic-binding peptides to detect common plastic polymers including polyethylene, PET, polypropylene, and polystyrene at very small scales. When tested on freshwater mussels deployed at suspected pollution sites, the sensor detected higher plastic levels near rainfall overflow and urban areas compared to treated municipal effluent sites.
Polystyrene nanoplastics in the marine mussel Mytilus galloprovincialis.
This study investigated how polystyrene nanoplastics affect Mediterranean mussels, an important marine species and human food source. Researchers found that these tiny plastic particles can cross cell membranes, accumulate in tissues, and trigger oxidative stress and immune responses. The findings suggest that nanoplastic pollution in the ocean could affect both marine ecosystem health and the safety of seafood consumed by people.
Development of a technology to remove micro and nanoplastics from the ocean: proof of concept using mussel exposure tests
Researchers developed a prototype technology to remove micro- and nanoplastics from ocean water and tested it using mussels as a biological indicator of exposure. Mussels naturally filter water and accumulate microplastics, making them useful for testing cleanup approaches.