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Papers
61,005 resultsShowing papers similar to Labeling of PET and PP nanoplastic test materials with non-leachable π-conjugated fluorescent polymers
ClearFluorescent plastic nanoparticles to track their interaction and fate in physiological environments
This study developed fluorescently labeled plastic nanoparticles made from PET, polypropylene, and polystyrene that can be tracked in biological environments to study how nanoplastics are taken up and processed by living organisms. Having trackable model nanoplastics is an important tool for understanding how these particles move through tissues and food chains.
Fabrication of polyethylene terephthalate (PET) nanoparticles with fluorescent tracers for studies in mammalian cells
Fluorescent polyethylene terephthalate (PET) nanoparticles with a hydrodynamic diameter of 158 nm were synthesized in a bottom-up approach for use as research tools. Concentration-dependent uptake and cytotoxicity were demonstrated in macrophages, providing well-characterized PET nanoplastic models for studying cellular interactions.
Autofluorescence of Model Polyethylene Terephthalate Nanoplastics for Cell Interaction Studies
Researchers produced model PET nanoplastics through mechanical fragmentation and characterized their autofluorescence properties, enabling label-free tracking of nanoplastic interactions with biological systems without the artifacts introduced by fluorescent dyes.
Control of Nanoparticle Size of Intrinsically Fluorescent PET (Polyethylene Terephthalate) Particles Produced Through Nanoprecipitation
Researchers developed a method to create fluorescent PET (polyethylene terephthalate) nanoparticles of controlled size for use as traceable nanoplastic models in laboratory studies. These standardized particles allow scientists to better track and study how nanoplastics behave in cells and biological systems, addressing a key gap in our understanding of nanoplastic exposure risks.
Fluorescent labelling as a tool for identifying and quantifying nanoplastics
Researchers used fluorescent labeling with four fluorescent molecules to enable detection of nanoplastics from six common polymer types (PP, LDPE, HDPE, PS, PET, PVC) via 3D fluorescence spectral analysis. The method provides a practical approach to identifying and quantifying nanoplastics in samples where conventional spectroscopic methods face sensitivity challenges.
New fluorescence labeling isotactic polypropylenes as a tracer: a proof of concept
Researchers developed fluorescence-labeled isotactic polypropylene tracer materials as a proof of concept for detecting polypropylene-derived microplastic pollutants in organic tissues, enabling tracking of PP-sourced particles in biological samples.
Making fluorescent nylon, polypropylene, and polystyrene microplastics for in-vivo and in-vitro imaging
Researchers developed methods for making fluorescent nylon, polypropylene, and polystyrene microplastics by incorporating fluorescent dyes during fabrication, enabling reliable tracking in live-cell and in vivo imaging studies. The fluorescent MPs retained their physical properties while allowing visualization of cellular uptake, tissue distribution, and biological interactions.
Harnessing PET to track micro- and nanoplastics in vivo
This study explores the use of positron emission tomography (PET) imaging to track micro- and nanoplastic particles in living organisms. Researchers developed methods to radiolabel plastic particles, enabling accurate determination of how these pollutants move through the body, which is critical for understanding the health effects of chronic microplastic exposure.
Use of fluorescent-labelled nanoplastics (NPs) to demonstrate NP absorption is inconclusive without adequate controls
Researchers demonstrated that fluorescent dyes used to label polystyrene nanoplastics can leach from particles and independently accumulate in zebrafish tissues, warning that many prior studies claiming nanoplastic absorption into internal organs may have been detecting dye rather than particles — and calling for stricter controls in nanoplastic uptake research.
Generating Tagged Micro‐ and Nanoparticles of Poly(ethylene furanoate) and Poly(ethylene terephthalate) as Reference Materials
Researchers developed methods for generating fluorescently tagged micro- and nanoparticles of poly(ethylene furanoate) (PEF) and poly(ethylene terephthalate) (PET) as reference materials for environmental and biological detection studies. The tagged particles were designed to overcome the detection limit challenges posed by these emerging polymers in environmental samples and tissues, particularly for PEF, which is not yet commercially exploited at scale.
Fabrication and characterization of (fluorescent) model nanoplastics for polymer specific detection
Scientists developed fluorescently labeled model nanoplastics that mimic the properties of real plastic particles, enabling polymer-specific identification at very small scales. These standardized reference particles are a key research tool because nanoplastics are otherwise extremely difficult to detect and characterize in environmental samples.
Imaging and quantifying the biological uptake and distribution of nanoplastics using a dual-functional model material
This study used advanced imaging techniques to visualize and quantify nanoplastic uptake and distribution in biological systems, tracking particle translocation from exposure routes into tissues and characterizing intracellular localization.
Fluorescent Tagging of Polymer Particles with PBN for the Detection of Microplastics in Personal Care Goods
Researchers used fluorescent labeling to detect microplastic particles in personal care products, a common but undermonitored source of plastic pollution. The method proved effective for identifying small polymer particles in consumer goods.
Noncovalent radiolabeling of microplastics using a desferrioxamine-conjugated Nile Red derivative for quantitative in vivo tracking
Researchers developed a new method for tracking microplastics in living organisms using a specialized dye that attaches to plastic surfaces without altering their properties, enabling both fluorescence imaging and radioactive labeling. The technique allowed quantitative tracking of microplastic movement through the gastrointestinal tract of mice using PET imaging, providing a tool for better understanding how microplastics behave in the body.
Fluorescent Nanodiamonds for Tracking Single Polymer Particles in Cells and Tissues
Scientists embedded fluorescent nanodiamond particles inside polymer nanoparticles to create a tracking label that does not bleach or blink, enabling long-term imaging of where plastic particles end up inside cells and liver tissue. This tool addresses a key challenge in microplastics research — reliably following individual particles through biological systems — and could improve understanding of how nanoplastics and drug-delivery nanoparticles are distributed and retained in the body.
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.
Stable staining of microplastics using conjugated polymer nanoparticles
Researchers developed conjugated polymer nanoparticles as a new analytical tool for staining and detecting microplastics, demonstrating stable fluorescent labeling of polystyrene particles that remained effective for at least 2.5 years after initial application.
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.
Assessing the effects of luminescently labelled and non-labelled PET nanoparticles on environmental bacteria
Researchers created fluorescently labeled PET nanoparticles to study how tiny plastic fragments from everyday products affect bacteria in the environment. They found that PET nanoparticles adhered to bacterial cells, altered their ability to use different carbon sources, and affected biofilm formation. The study demonstrates a new visualization technique for tracking nanoplastics in biological samples and reveals that even nanoscale plastic particles can influence microbial behavior.
Fluorescent Dyes for Visualizing Microplastic Particles and Fibers in Laboratory-Based Studies
Researchers developed a heat-mediated dyeing protocol that allows fluorescent dyes to be stably incorporated into a variety of microplastic types and shapes for use in laboratory tracking experiments. The method works across multiple common polymer types and particle morphologies, extending the tool beyond the polystyrene spheres that have dominated previous studies. The protocol enables researchers to better study the environmental fate and biological uptake of realistically shaped microplastics.
Conjugated Polymer Nanoparticles as a Universal High-Affinity Probe for the Selective Detection of Microplastics
Researchers developed conjugated polymer nanoparticles based on fluorescent diketopyrrolopyrrole prepared by nanoprecipitation as a novel high-affinity probe for selective microplastic detection via fluorescence spectroscopy, addressing the limitations of current detection methods in sensitivity and polymer specificity.
Near-infrared (NIR-II) fluorescent poly(ethylene terephthalate) nano-microplastics for in vivo tracking
Researchers developed a new method to track nano-microplastics inside living animals in real time using near-infrared fluorescent imaging. By embedding a special dye into common PET plastic particles, they were able to follow the particles through mice after oral exposure, offering a promising tool for studying how plastics of different sizes behave inside the body.
Synthesis of 14C‐Labeled Polyethylene Terephthalate and Generation of 14C‐Nanoparticles for Fate and Disposition Studies
Researchers developed a method to synthesize carbon-14 labeled polyethylene terephthalate (PET) and generate radiolabeled nanoparticles for tracking plastic fate in biological systems. The approach combines polycondensation chemistry with nanoprecipitation to produce well-characterized nanoparticles. This tool could enable researchers to study how PET micro- and nanoplastics are absorbed and distributed in the tissues of food animals, addressing a major knowledge gap in understanding plastic exposure through the food chain.
Fabrication and characterization of (fluorescent) model nanoplastics for polymer specific detection
This study developed and characterized fluorescent model nanoplastics that can be tracked and identified by polymer type, providing standardized reference particles for laboratory research. Reliable model nanoplastics are critical tools for toxicology experiments — without them, it is difficult to compare results across studies or understand which plastic types pose the greatest biological risk.