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Papers
20 resultsShowing papers similar to The application of nuclear technique for measuring the bioaccumulation of microplastic in oyster (Crassostera Gigas)
ClearApplication of nuclear analysis for bioaccumulation of microplastics with iodine-131 in marine organisms
Researchers developed a method using iodine-131 labeled polystyrene to track microplastic accumulation in mangrove plants and milkfish through nuclear analysis. They found that both organisms absorbed the labeled microplastics, with accumulation patterns varying between plant roots and fish tissue. The study demonstrates that radiotracer techniques can be a valuable tool for understanding how microplastics move through marine food chains.
Development of a polystyrene-based microplastic model for bioaccumulation and biodistribution study using radiotracing and nuclear analysis method
Researchers developed a radiolabeled polystyrene microplastic model to track how microplastics move through and accumulate in living organisms. The study suggests that using radioactive tracers like iodine-131 allows for real-time, sensitive monitoring of microplastic behavior in biological systems, offering a more efficient alternative to conventional tracking methods.
Microplastic Bioaccumulation by Tiger Snail (Babylonia spirata): Application of Nuclear Technique Capability using Polystyrene Labelled with Radiotracer 65Zn
Researchers used radiotracer-labeled polystyrene microplastics to quantify bioaccumulation in tiger snails (Babylonia spirata), demonstrating that nuclear techniques can effectively track microplastic uptake in marine organisms and revealing size-dependent accumulation patterns.
Biokinetics of fluorophore-conjugated polystyrene microplastics in marine mussels
Researchers studied the biokinetics of fluorophore-labeled polystyrene microplastics in marine mussels, finding size-dependent tissue absorption and clearance rates that inform understanding of how microplastics accumulate in commercially harvested bivalves.
Combined effects of salinity and polystyrene microplastics exposure on the Pacific oysters Crassostrea gigas: Oxidative stress and energy metabolism
Researchers studied how salinity levels affect the toxicity of polystyrene microplastics in Pacific oysters and found that low salinity reduced microplastic uptake but created complex interactions with oxidative stress and energy metabolism. Smaller microplastics generally caused more biological disruption than larger ones across all salinity conditions. This is important because coastal oyster habitats frequently experience salinity changes, and the findings suggest environmental conditions can alter how harmful microplastics are to shellfish.
Do Polystyrene Beads Contribute to Accumulation of Methylmercury in Oysters?
Researchers studied whether polystyrene microplastic beads contribute to methylmercury bioaccumulation in oysters (Crassostrea gigas), examining the sorption of methylmercury onto plastic beads and evaluating whether ingestion of contaminated beads elevated mercury levels in oyster tissue.
Accumulation and Depuration of Microplastics by Oysters Upon the Laboratory Conditions
Researchers monitored microplastic accumulation and elimination in oysters over 30 days, finding that the digestive tract accumulated the highest concentrations (bioaccumulation factors increasing from ~10 to ~41 over 10 days), and that most particles were eliminated within 30 days of depuration.
Microplastics as vectors of radioiodine in the marine environment: A study on sorption and interaction mechanism
Researchers investigated microplastics as potential vectors of radioiodine in the marine environment, finding that different polymer types exhibited varying sorption capacities for radioiodine, revealing a previously unstudied pathway for radionuclide transport.
Tracking radiolabelled polystyrene microplastics in young Atlantic scallop (Placopecten magellanicus): bioaccumulation, depuration and bioenergetic impacts assessment
Researchers tracked radiolabeled 1.5 µm polystyrene microplastics in juvenile Atlantic scallops over time, measuring long-term bioaccumulation and organ distribution and finding the particles affected energy reserve levels — providing direct evidence of bioenergetic costs from microplastic ingestion.
Oyster as sentinels of recent microplastic contamination: Insights from a transplant experiment
Researchers used oyster transplantation experiments to study how microplastics accumulate and are excreted in sentinel organisms under field-realistic conditions. The study found that bivalves can serve as effective biomonitors of recent microplastic contamination in coastal ecosystems. The findings help fill knowledge gaps about the dynamics of microplastic uptake and clearance in marine filter feeders.
Iodine-131 radiolabeled polyvinylchloride: A potential radiotracer for micro and nanoplastics bioaccumulation and biodistribution study in organisms
Researchers developed a method to radiolabel polyvinyl chloride with iodine-131 for use as a radiotracer to study microplastic bioaccumulation and biodistribution in organisms. The study demonstrated successful preparation of radiolabeled PVC particles, offering a highly sensitive nuclear technique for tracking the fate of micro- and nanoplastics in biological systems.
Microplastics uptake and egestion dynamics in Pacific oysters, Magallana gigas (Thunberg, 1793), under controlled conditions
Pacific oysters were exposed to polystyrene microplastics under controlled conditions to characterize uptake, egestion via faeces, and rejection via pseudofaeces, finding that ingestion increased with MP concentration while pseudofaeces was the dominant clearance route. The study quantifies the dynamics of MP retention in a commercially important bivalve and highlights the potential for MP entry into the human food chain.
Bioaccumulation of microplastics and its in vivo interactions with trace metals in edible oysters
Scientists collected oysters from a Chinese coastal city and found microplastics in all samples, then investigated how microplastics interact with trace metals in vivo, finding that plastic particles and metals co-accumulated in tissues and that plastics may alter metal bioavailability.
Microplastics exposure in European flat oyster, Ostrea edulis: Evaluation of accumulation and depuration under controlled conditions and molecular assessment of a set of reference genes
Researchers evaluated microplastic accumulation and effects in European flat oysters under controlled exposure conditions, examining how filter feeding concentrates plastic particles and whether ingestion impairs oyster health. Exposure resulted in measurable microplastic accumulation in oyster tissue, with effects observed on feeding behavior and physiological condition.
Microplastics exposure in European flat oyster, Ostrea edulis: Evaluation of accumulation and depuration under controlled conditions and molecular assessment of a set of reference genes
Researchers assessed microplastic exposure, accumulation, and depuration in European flat oysters (Ostrea edulis), a species of conservation and aquaculture interest. Oysters accumulated microplastics efficiently and required extended depuration periods to substantially reduce body burdens, with implications for food safety.
The relationship between microplastics in eastern oysters (Crassostrea virginica) and surrounding environmental compartments in Long Island Sound
This study measured microplastics in eastern oysters, water, marine snow, and sediment in Long Island Sound and found low overall concentrations, with sediment having the most plastic. Few polymer types were shared between oysters and the surrounding environment, suggesting oysters are not efficient indicators of local microplastic pollution despite being widely used as biomonitors. The results help refine what kinds of plastic particles reach seafood consumers versus what remains in the broader environment.
Microplastics extraction from oyster tissue v1
Researchers developed and validated a protocol for extracting microplastics from oyster tissue, addressing the challenges of isolating plastic particles from a complex biological matrix that includes lipids, proteins, and mineral content. The method enables reliable quantification of microplastic contamination in bivalves — a widely consumed seafood and established bioindicator of coastal pollution — supporting standardised monitoring of microplastic uptake in marine food species.
Evidence of microplastic-mediated transfer of PCB-153 to sea urchin tissues using radiotracers
Researchers used radiotracer experiments to demonstrate for the first time that PCB-153 adsorbed onto microplastics is bioavailable to sea urchins, with plastic-bound PCBs transferring to sea urchin tissues and confirming microplastics as vectors for persistent organic pollutant transfer.
Microplastics in Pnw, Bivalves, and the Impact on Oceanic Ecosystems and Human Health
This review discusses how microplastics accumulate in bivalves such as oysters and mussels in Pacific Northwest coastal waters, how they move up the food chain, and why seafood consumers in the region may face elevated exposure risks. The paper synthesizes the threat to both marine ecosystem stability and human health from microplastic bioaccumulation in commercially important shellfish.
A new approach to extracting biofilm from environmental plastics using ultrasound-assisted syringe treatment for isotopic analyses
Researchers developed an ultrasound-assisted syringe extraction method for recovering biofilms from environmental plastic debris, enabling stable carbon and nitrogen isotope analysis and radiocesium quantification, and found that river-mouth plastisphere biofilms in Japan carried up to 820 Bq/kg of radiocesium, demonstrating that plastic-associated biofilms can serve as vectors for radionuclide transport in coastal environments.