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61,005 resultsShowing papers similar to Core–Shell Au@Nanoplastics as a Quantitative Tracer to Investigate the Bioaccumulation of Nanoplastics in Freshwater Ecosystems
ClearExploring 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.
Distribution, bioaccumulation, and trophic transfer of palladium-doped nanoplastics in a constructed freshwater ecosystem
Researchers used palladium-doped nanoplastics as tracers in a constructed freshwater ecosystem to quantitatively track distribution, bioaccumulation, and trophic transfer, finding that nanoplastics move through multiple trophic levels and accumulate in organisms.
From the synthesis of labeled nanoplastic model materials (isotopic and metallic) to their use in ecotoxicological studies with the detection and quantification analytical methods.
This study developed labeled nanoplastic model materials using isotopic and metallic tracers to enable tracking and quantification of nanoplastics in complex biological and environmental matrices at environmentally relevant concentrations. Labeled particles allowed localization and measurement of nanoplastics at levels not detectable by conventional methods, advancing mechanistic exposure studies.
SERS imaging and ICP-MS quantification of the biological uptake of nanoplastics using a dual-detectable model nanomaterial
Researchers synthesized a dual-detectable nanoplastic model with a gold nanoparticle core surrounded by a polymer shell, enabling simultaneous in situ visualization by surface-enhanced Raman spectroscopy and ex situ quantification by mass spectrometry, providing a more accurate tool for studying nanoplastic uptake in biological systems.
Development of Rare-earth-Copolymerized Polystyrene Particles for Traceable Microplastic Quantification and Imaging in Environmental and Biological Systems
Researchers developed a method to permanently embed rare-earth elements into polystyrene microplastic and nanoplastic particles, creating traceable reference materials that stay stable in environmental, gut, and neural conditions — enabling more accurate tracking and quantification of microplastics as they move through ecosystems and living organisms.
Europium-labelled nanopolystyrene as model nanoplastics for environmental fate investigations: Synthesis and optimisation
Researchers developed a method to track nanoplastics in the environment by embedding the rare-earth element europium into polystyrene nanoparticles, enabling precise detection using single-particle mass spectrometry even at very low concentrations. The europium label stayed locked inside the particles for over a week in both fresh and salt water, making this a reliable tool for studying how nanoplastics move and persist in ecosystems.
Synthesis of metal-doped nanoplastics and their utility to investigate fate and behaviour in complex environmental systems
Researchers developed a method to synthesize metal-doped nanoplastics that use an entrapped metal tracer for easy detection in complex environmental systems, demonstrating in wastewater treatment simulations that over 98% of nanoplastics associate with sewage sludge — providing a robust tool for studying nanoplastic fate and transport in real-world environments.
Ultrastable long-term tracking and quantification of nanoplastics in complex environmental matrices
Researchers developed a europium-based tracer system for long-term tracking and quantification of nanoplastics in water, sediment, and organisms. The method demonstrated high stability over 28 days and enabled detection at concentrations as low as 0.5 micrograms per liter, revealing that over 95 percent of nanoplastic particles settled into sediment within 10 days in experimental conditions.
From the synthesis of labeled nanoplastic model materials (isotopic and metallic) to their use in ecotoxicological studies with the detection and quantification analytical methods.
Researchers synthesized isotopically and metallically labeled nanoplastic model materials to enable tracking and quantification of plastic nanoparticles in complex biological and environmental matrices at trace concentrations. The labeled models supported mechanistic studies of nanoplastic fate and exposure by allowing detection at environmentally relevant concentrations not achievable with conventional unlabeled particles.
Development and Application of Nanoparticle-Nanopolymer Composite Spheres for the Study of Environmental Processes
This study developed labeled synthetic nanoplastic particles with built-in chemical, isotopic, or fluorescent tracers to allow precise tracking of plastic particle fate and behavior in complex environmental and biological samples. These standardized tracer particles address a key bottleneck in microplastic research by enabling more sensitive and selective detection in real-world matrices.
Quantitative Tracking of Nanoplastic Uptake and Distributionin Zebrafish by Single-Particle Inductively Coupled Plasma Mass Spectrometry
Researchers developed a framework using europium-doped polystyrene nanoplastics as tracers, combined with single-particle inductively coupled plasma mass spectrometry, to quantitatively track nanoplastic uptake and distribution in zebrafish at the single-particle level. This method enabled real-time, size-resolved tracking of nanoplastics accumulating in different fish organs over time.
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.
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.
13C-labeled nanoplastic model materials: Synthesis and evaluation of their use in ecotoxicology through bioaccumulation studies in aquatic crustaceans
Researchers developed carbon-13 labeled nanoplastic particles as a new tool for accurately tracking and measuring nanoplastics in living organisms. By combining stable isotope labeling with mass spectrometry, they could detect nanoplastics in complex biological samples like brine shrimp without the extensive sample preparation that current methods require. The approach provides a more reliable way to study how nanoplastics accumulate in aquatic food chains.
Qualitative and quantitative analysis of accumulation and biodistribution of polystyrene nanoplastics in zebrafish (Danio rerio) via artificial freshwater
Researchers developed MALDI-TOF mass spectrometry methods to accurately track polystyrene nanoplastic accumulation and biodistribution across zebrafish tissues after waterborne exposure, enabling precise quantitative analysis of nanoplastic uptake.
Simple detection of polystyrene nanoparticles and effects in freshwater mussels: method development and in situ application to urban pollution
Researchers developed simple, low-cost tests to detect nanoplastics in freshwater mussels using a gold nanoparticle sensor, and found that nanoplastics reduced protein stability markers in mussel tissue. Mussels caged at sites downstream of urban runoff had the highest nanoplastic loads, demonstrating that accessible biological assays can track real-world contamination and its biochemical effects in aquatic wildlife.
Imaging and quantifying the biological uptake and distribution of nanoplastics using a dual-functional model material
Researchers developed a dual-functional nanoplastic model material that allows both imaging and precise quantification of nanoplastic uptake in biological systems. Using surface-enhanced Raman spectroscopy and inductively coupled plasma mass spectrometry, they could track where nanoplastics accumulated in organisms at high resolution. The tool addresses a major gap in nanoplastic research by enabling more accurate measurement of how these tiny particles interact with living tissues.
A Novel Strategy for the Detection and Quantification of Nanoplastics by Single Particle Inductively Coupled Plasma Mass Spectrometry (ICP-MS)
A new analytical method was developed to detect and count individual nanoplastic particles in drinking water and river water using gold nanoparticles as tags and single particle ICP-MS for detection. The method can detect nanoplastics as small as 135 nm at environmentally relevant concentrations, providing a sensitive new tool for tracking nanoplastic contamination.
Protein Corona-Mediated Extraction for Quantitative Analysis of Nanoplastics in Environmental Waters by Pyrolysis Gas Chromatography/Mass Spectrometry
Scientists developed a new method for detecting and measuring nanoplastics in environmental water samples using a protein-based extraction technique paired with specialized mass spectrometry. The approach works by adding a protein that naturally coats nanoplastic particles, which can then be separated from the water and analyzed. Using this method, researchers detected nanoplastics in both river water and wastewater treatment plant samples, demonstrating a practical tool for monitoring these tiny but potentially harmful contaminants.
How suitable is the gold-labelling method for the quantification of nanoplastics in natural water?
This study tested a gold-labelling method for quantifying nanoplastics in natural water samples and found that the method faces significant challenges from interfering organic matter. Accurately measuring nanoplastic concentrations in real-world water remains technically difficult, limiting risk assessment for this smallest and potentially most harmful plastic size class.
SERS Imaging and ICP-MS quantification of the biological uptake of nanoplastics using a dual-detectable model material
Researchers developed a dual-detection nanoplastic model using gold nanoparticles coated with a plastic shell, enabling both imaging via Raman spectroscopy and quantification via mass spectrometry. The model particles remained stable for over a year without chemical leaching, and testing in garlic plants demonstrated the ability to track nanoplastic uptake and distribution in biological systems at the single-particle level.
Quantifying Nanoplastic Toxicity Using Gold-Core Polystyrene Nanoparticles: In vivo Evaluation and Human Risk Extrapolation
Researchers used gold-core polystyrene nanoparticles as a dual-detectable model to quantify nanoplastic toxicity in vivo, finding that chronic exposure induced intestinal accumulation and systemic toxicity, and used these data to extrapolate human health risk thresholds.
Quantifying Nanoplastic Toxicity Using Gold-Core Polystyrene Nanoparticles: In vivo Evaluation and Human Risk Extrapolation
Researchers used gold-core polystyrene nanoparticles as a dual-detectable model to quantify nanoplastic toxicity in vivo, finding that chronic exposure induced intestinal accumulation and systemic toxicity, and used these data to extrapolate human health risk thresholds.
Counting Nanoplastics in Environmental Waters by Single Particle Inductively Coupled Plasma Mass Spectroscopy after Cloud-Point Extraction and In Situ Labeling of Gold Nanoparticles
Researchers developed a cloud-point extraction and in-situ gold nanoparticle labeling method combined with single particle ICP-MS to count nanoplastics down to 50 nm in environmental water samples, enabling quantification of nanoplastics previously undetectable by conventional methods.