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61,005 resultsShowing papers similar to NIR-II Plastic Particles for Monitoring IntestinalMotility and Microplastic Deposition in Mice
ClearNIR-II Plastic Particles for Monitoring IntestinalMotility and Microplastic Deposition in Mice
Researchers developed NIR-II fluorescent microplastic tracers to non-invasively monitor intestinal motility and microplastic deposition in living mice, enabling real-time imaging of how plastic particles travel and accumulate within the gut. (Duplicate record.)
NIR-II Plastic Particles for Monitoring IntestinalMotility and Microplastic Deposition in Mice
NIR-II fluorescent plastic particles were used to monitor real-time intestinal microplastic movement and accumulation in mice, revealing that different particle sizes showed distinct deposition patterns in the gastrointestinal tract. (Duplicate record.)
NIR-II Plastic Particles for Monitoring IntestinalMotility and Microplastic Deposition in Mice
Fluorescent NIR-II plastic tracers were developed and used to track microplastic distribution in mouse intestines in vivo, finding that plastic particles accumulated and were retained in specific intestinal regions over time. (Duplicate record.)
NIR-II Plastic Particles for Monitoring IntestinalMotility and Microplastic Deposition in Mice
Researchers developed near-infrared II (NIR-II) fluorescent plastic particles to non-invasively track microplastic movement and deposition in living mice, finding that microplastics accumulated preferentially in the intestine with slow clearance.
NIR-II Plastic Particles for Monitoring Intestinal Motility and Microplastic Deposition in Mice
Scientists developed a new imaging technique using fluorescent plastic particles to track microplastic movement through the digestive systems of living mice in real time. Healthy mice excreted 99% of the particles within 24 hours, but mice with constipation or colitis retained microplastics much longer. Long-term feeding experiments showed persistent microplastic accumulation in the intestines and spleen, providing direct visual evidence that gut health conditions may increase the body's retention of ingested plastic particles.
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 near-infrared-fluorophore-loaded microplastics with different compositions for in vivo tracking
Researchers synthesised fluorescent microplastic particles of different polymer types that can be tracked inside living animals using near-infrared imaging, creating a tool for studying how microplastics move through and accumulate within biological tissues. These model particles help researchers understand real-world microplastic behaviour inside organisms, which is critical for assessing health risks.
Digestible Fluorescent Coatings for Cumulative Quantification of Microplastic Ingestion
Researchers developed digestible fluorescent coatings for microplastic particles that allow cumulative quantification of ingestion over time, overcoming the limitation of gut-content snapshots by enabling tracking of total microplastic exposure in organisms.
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.
In Vivo visualization of microplastic degradability and intestinal functional responses in a plastivore insect
Researchers developed near-infrared fluorescent microplastics to visualize real-time plastic degradation inside the gut of mealworm larvae (Tenebrio molitor), a known plastic-eating insect. They found that smaller microplastics were digested and passed more quickly than larger ones, and that the larvae actively modulated reactive nitrogen species levels in response to microplastic biodegradation.
Challenges in assessing ecological and health risks of microplastics and nanoplastics: tracking their dynamics in living organisms
Researchers proposed a new method for tracking micro- and nanoplastics in living organisms using fluorescent monomers built directly into the plastic particles during synthesis. Current detection methods require destructive sampling and only provide static snapshots, missing the real-time movement of particles through biological systems. This fluorescent monomer approach is designed to enable continuous, stable imaging of plastic particles as they move through complex biological environments.
Fluorescent 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.
Visible Combined Near-Infrared in Situ Imaging Revealed Dynamic Effects of Microplastic Fibers and Beads in Zebrafish
Researchers used a combined visible and near-infrared imaging technique to track microplastic fibers and beads in live zebrafish in real time. They observed that microplastics were quickly ingested and could be retained briefly in the digestive tract before being eliminated. The study provides new insights into the dynamic behavior of microplastics inside living organisms and whether any tissue damage that occurs during transit can be reversed.
Near-Infrared-II In Vivo Visualization and Quantitative Tracking of Micro/Nanoplastics in Fish
Scientists developed a new near-infrared imaging technique to track micro- and nanoplastics inside living zebrafish in real time, overcoming limitations of previous detection methods. They found that both sizes of plastic particles accumulated mainly in the gut, with microplastics concentrating more in the front sections and nanoplastics distributing more evenly. This tracking tool helps researchers better understand how plastic particles move through and accumulate in living organisms, which is essential for assessing the risks of microplastic exposure.
Fate, uptake and impact of fit-for-purpose nanoplastics on the digestive environment: an in vitro-in vivo continuum study
Researchers investigated the fate, uptake, and impact of fluorescent and gold-labeled polystyrene nanoplastics on the digestive environment, using fit-for-purpose labeled particles to track nanoplastic behavior in biological systems. The labeled nanoplastics enabled detailed mapping of how plastic nanoparticles are processed in the gut, providing mechanistic insight into absorption pathways.
Fluorescence Lifetime Imaging Microscopy (FLIM) visualizes internalization and biological impact of nanoplastics in live intestinal organoids
Researchers developed a new imaging method using fluorescence lifetime microscopy to track how nanoplastics are taken up by lab-grown intestinal tissue models. They found that nanoplastics penetrated the outer cell layers and accumulated inside the organoids, causing measurable changes in cell metabolism. The technique offers a powerful new way to study how tiny plastic particles interact with living gut tissue in real time.
Biodistribution of nanoplastics in mice: advancing analytical techniques using metal-doped plastics
Researchers developed a new analytical method using palladium-doped nanoplastics to track where plastic particles go in the body after ingestion in mice. They found that after short-term exposure, most particles passed through the digestive system and were excreted, but longer-term exposure led to accumulation in body tissues. The study advances the ability to detect and trace nanoplastics at extremely small concentrations in biological samples.
Visualizing the internalization and biological impact of nanoplastics in live intestinal organoids by Fluorescence Lifetime Imaging Microscopy (FLIM)
Researchers developed a new imaging method using fluorescence lifetime microscopy to track nanoplastics inside living intestinal tissue grown from stem cells, finding that even pristine (unweathered) PMMA and polystyrene nanoparticles disrupted mitochondrial function and triggered inflammation in gut cells within just three days.
MRI-based microplastic tracking in vivo and targeted toxicity analysis
Researchers developed a new MRI-based method to track microplastics inside living mice over 21 days. They found that the liver was the primary organ where polystyrene microplastics accumulated, and this accumulation led to liver cell death, inflammation, and changes in enzyme levels. This tracking technique could help scientists better understand how microplastics move through and affect biological systems.
Quantifying microplastic ingestion, degradation and excretion in insects using fluorescent plastics
This study used fluorescent tracking to quantify microplastic ingestion, gut transit, and excretion rates in insects, establishing a framework for assessing microplastic fate through invertebrate digestive systems. The approach provides an accessible model organism system for evaluating microplastic toxicity and trophic transfer.
Fate, uptake and impact of fit-for-purpose nanoplastics on the digestive environment: an in vitro-in vivo continuum study
Researchers used fluorescently and gold-labeled polystyrene nanoplastics as models to study how these particles behave in the digestive environment and what effects they have on gut health. The study revealed that nanoplastics interact with the digestive system in ways that depend on particle labeling and surface properties.
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.
Intelligent Magnetic Microrobots with Fluorescent Internal Memory for Monitoring Intragastric Acidity
Scientists engineered tiny magnetic microrobots that can navigate through the stomach and monitor acid levels using fluorescent signals that switch on and off based on pH. While not directly related to microplastics, this technology represents an advance in miniature devices that could eventually be used to detect and track microplastic particles inside the human digestive system. The ability to precisely monitor conditions in the gut is relevant to understanding how microplastics behave after ingestion.
Luminous Upconverted Nanoparticles as High-Sensitivity Optical Probes for Visualizing Nano- and Microplastics in Caenorhabditis elegans
Researchers used upconverted NaYF4:Yb3+/Er3+ nanoparticles as high-sensitivity optical probes to visualize the ingestion and biodistribution of polystyrene microplastics and nanoplastics in Caenorhabditis elegans in real time, overcoming autofluorescence limitations of conventional fluorescent probes.