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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
This study created NIR-II fluorescent plastic particles to study intestinal motility and microplastic deposition in live mice, demonstrating their utility for real-time in vivo tracking of microplastic behavior in the digestive tract. (Duplicate record.)
NIR-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 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.
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.
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.
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.
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.
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.
Label-Free Identification and Imaging of Microplastic and Nanoplastic Biouptake Using Optical Photothermal Infrared Microspectroscopy
Researchers developed a new imaging technique that can locate and identify microplastic and nanoplastic particles inside whole organisms without needing fluorescent labels. Using a method called optical photothermal infrared microscopy, they tracked polystyrene particles as small as 1 micrometer in roundworms. This tool could help scientists better understand how plastic particles are taken up by living things and where they accumulate in the body.
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.
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.
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.
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.
Label-free non-destructive spectroscopic detection of mixed microplastic uptake and differential effects on intestinal epithelial cells
Researchers used a specialized infrared spectroscopy technique to detect and identify real-world microplastics that had been internalized by human intestinal cells in the lab. They found that mixed microplastic exposures caused measurable changes in cellular biochemistry, even when individual plastic types showed limited effects. The study demonstrates a promising non-destructive method for tracking microplastics inside biological tissues and suggests that realistic mixtures of plastics may be more harmful than single types alone.
Toxicity Study and Quantitative Evaluation of Polyethylene Microplastics in ICR Mice
Researchers fed polyethylene microplastics to mice over 28 days to study their toxicity, and used Raman spectroscopy to track where the particles ended up. They detected microplastics in the lungs, stomach, intestines, and blood serum, with repeated oral exposure leading to inflammation in lung tissue. The findings provide evidence that ingested microplastics can travel beyond the gut and accumulate in other organs.
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.
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.
Dipeptidyl Peptidase IV Activated Near-Infrared FluorescentProbe for Visually Evaluating Diabetes Models under Microplastic Exposure
Researchers developed a near-infrared fluorescent probe activated by the enzyme dipeptidyl peptidase IV (DPP4) to non-invasively monitor diabetes status in microplastic-exposed animal models, addressing the gap in microplastic toxicity research that uses healthy rather than pre-diseased subjects.
Fluorescent Polypropylene Nanoplastics for Studying Uptake, Biodistribution, and Excretion in Zebrafish Embryos
Researchers developed a method to produce fluorescent polypropylene nanoplastics and tracked their movement in zebrafish embryos. The study found that the nanoplastics were ingested, distributed in the intestine, and eventually excreted, providing a new tool for assessing the biological risks of environmentally relevant plastic particles at the nanoscale.