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61,005 resultsShowing papers similar to Quantitative Detection of Microplastics in Water through Fluorescence Signal Analysis
ClearA New Optical Method for Quantitative Detection of Microplastics in Water Based on Real-Time Fluorescence Analysis
Researchers developed a new fluorescence-based particle counter for real-time quantitative detection of microplastics in water, validating the method against FTIR analysis on wastewater treatment plant samples containing polyethylene and PVC particles.
Fast and portable fluorescence lifetime analysis for early warning detection of micro- and nanoplastics in water
Researchers developed a portable fluorescence-based system that can detect micro- and nanoplastics in water without any sample preparation or labeling. The method works by measuring the natural fluorescence lifetime of plastic particles using a pulsed laser, achieving detection limits as low as 0.01 mg/mL. The study presents a promising early-warning tool for rapid, on-site monitoring of plastic contamination in water sources.
Real-Time Quantification of Microplastics in Aquatic Systems via Fluorescence Microscopy
Researchers developed a real-time fluorescence microscopy method capable of quantifying microplastics in aquatic systems with high precision, providing a faster and more accessible tool for monitoring microplastic contamination in drinking water reservoirs.
Optical System for In-situ Detection of Microplastics
Researchers developed a portable optical system capable of detecting, identifying, continuously monitoring, and quantifying microplastics in situ at natural water bodies. The system uses optical techniques to observe the temporal behavior of microplastic concentrations at fixed locations, enabling real-time environmental monitoring without sample collection and laboratory processing.
Rapid and reliable detection of microplastics in drinking water using fluorescence microscopy
Researchers developed a fluorescence-based method for rapid detection and quantification of microplastics in drinking water, addressing the need for faster and more practical monitoring tools. The method achieved high sensitivity and allowed polymer discrimination without requiring expensive spectroscopic instrumentation.
Portable On-Site Optical Detection and Quantification of Microplastics
Researchers built a portable, on-site optical device to detect and quantify microplastics in water. The device addresses the challenge of detecting small, often translucent particles without a laboratory setting. Portable microplastic detection tools could enable real-time monitoring in the field, supporting faster environmental assessments.
Revolutionizing microplastic detection in water through quantum dot fluorescence
Researchers developed a quantum dot fluorescence-based detection system for microplastics in water, achieving sensitive and rapid identification of multiple polymer types with lower detection limits and faster analysis times than conventional spectroscopic methods.
Fluorescence Machine Vision-Based Rapid Quantitative Characterization of Microplastics
Scientists developed a new system that uses special fluorescent dye and artificial intelligence to quickly detect and count microplastics (tiny plastic particles) in samples. The technology is faster and cheaper than current methods, which could help researchers better track these particles that may pose health risks when they get into our food and water. This advance could lead to better monitoring of microplastic pollution and help protect human health.
A novel high-throughput analytical method to quantify microplastics in water by flow cytometry
Researchers developed a faster, high-throughput method using flow cytometry — a technology that rapidly counts and characterizes particles in liquid — to measure microplastics in water, achieving about 97% accuracy across multiple plastic types and sizes and offering a practical alternative to slow, labor-intensive microscopy-based counting.
A prototype of a portable optical sensor for the detection of transparent and translucent microplastics in freshwater
Researchers developed a portable prototype optical sensor capable of detecting transparent and translucent microplastics in freshwater by simultaneously measuring specular laser light reflection and transmission, offering a feasibility pathway for field-deployable microplastic monitoring.
In Situ Fluorescent Illumination of Microplastics in Water Utilizing a Combination of Dye/Surfactant and Quenching Techniques
Researchers developed an in situ fluorescent microplastic detection method using a nonpolar dye combined with surfactant to form nanoscale dye particles that selectively adsorb onto and penetrate plastic polymer matrices in water, then quenched free dye fluorescence using aniline to enable direct visualization of stained microplastics without filtration.
A non-contact in situ approach for detecting fluorescent microplastic particles in flowing water using fluorescence spectroscopy
Researchers developed a non-contact in situ method combining fluorescence spectroscopy and interferometric particle imaging to detect, characterise, and classify fluorescent polypropylene microplastic particles in flowing water.
Automatic Detection of Microplastics in the Aqueous Environment
Researchers developed a deep-learning system for real-time detection and counting of microplastics in freshwater, achieving high accuracy for particles 1 mm and larger.
A field deployable imaging system for detecting microplastics in the aquatic environment
Researchers built a portable imaging system for detecting microplastics in water that can be deployed directly in the field rather than requiring laboratory analysis. The system uses a de-scattering algorithm to produce clear images even in turbid water conditions and can identify particles as small as 50 micrometers. This low-cost tool could make routine microplastic monitoring of rivers, lakes, and coastal waters much more practical and accessible.
Optical measurement technologies for detecting low levels of pollution and identifying microplastics in water
Researchers reviewed optical technologies for detecting and identifying microplastics in water, experimentally characterizing the fluorescence spectra of PE and PET microplastic samples under 365 nm excitation and identifying spectral bands enabling identification of different polymer types, then proposing a comprehensive hardware solution using a fluorescent probe for microplastic visualization.
Rapid and reliable detection of microplastics in drinking water using fluorescence microscopy
This study developed a rapid and reliable fluorescence-based method for detecting microplastics in drinking water, addressing the need for faster alternatives to time-consuming conventional analytical approaches. The method demonstrated high sensitivity and specificity for common plastic polymers in drinking water matrices.
High-throughput microplastic assessment using polarization holographic imaging
Researchers built a portable, low-cost system that uses holographic imaging and polarized light combined with deep learning to automatically detect, count, and classify microplastics in water in real time — without lengthy sample preparation. This tool significantly speeds up microplastic monitoring and could be widely deployed for environmental surveillance.
Frequency domain fluorescence lifetime imaging microscopy: A new method to directly identify microplastics in water.
Researchers evaluated frequency-domain fluorescence lifetime imaging microscopy (FD-FLIM) as a method to identify ABS, PC, PET, PS, and PVC granulates directly in a 1 cm water layer without filtration or drying. The study found that all five polymer types could be unambiguously identified by their fluorescence lifetimes, establishing FD-FLIM as a promising rapid label-free technique for direct microplastic detection in aqueous samples.
First-line detection of PET and PVC microplastics in water using a portable fluorescence lifetime platform
Researchers demonstrated that a portable fluorescence lifetime analysis (FLA) device can rapidly screen for PET and PVC microplastics in water suspensions at concentrations as low as 0.01 mg/mL. The label-free method is much cheaper than conventional detection approaches, enabling cost-effective tiered environmental monitoring.
Highly efficient Nile red staining for the rapid quantification of microplastic number concentrations using flow cytometry
Scientists developed an improved method for staining microplastics with a fluorescent dye (Nile red) that embeds the dye inside the plastic particles rather than just coating the surface, resulting in much brighter and more reliable detection. Combined with high-speed flow cytometry, the technique can rapidly count microplastic particles smaller than 10 µm in environmental water samples with recovery rates above 99%. Faster and more accurate counting methods like this are important for scaling up microplastic monitoring across many water sources.
Design and Implementation of a Microplastic Detection and Classification System Supported by Deep Learning Algorithm
Researchers designed and implemented a low-budget deep learning system for autonomous microplastic detection and classification in water, using three dual-wavelength lasers at 405 nm, 655 nm, and 534-807 nm to classify microplastics by size and type in real time.
Towards a low-cost, rapid microplastic optical detection system using fluorescent staining through Nile Red for in situ ocean deployment
This study presents a proof-of-concept for a portable, low-cost microplastic detection device that uses fluorescent dye (Nile Red) and a simple optical sensor to detect plastic particles in water. The system produced a signal that scaled linearly with microplastic concentration in lab tests. Development of cheap, field-deployable sensors like this could dramatically improve our ability to monitor microplastic pollution in real time across oceans and waterways, where current lab-based methods are too expensive and slow for widespread use.
Rapid Detection of Micro/Nanoplastics Via Integration of Luminescent Metal Phenolic Networks Labeling and Quantitative Fluorescence Imaging in A Portable Device
Researchers developed a portable wireless device for rapid on-site detection of micro- and nanoplastics using fluorescent labeling and machine learning-powered image analysis. The study demonstrates that this approach enables sensitive and quantitative identification of plastic particles in environmental samples, addressing the need for field-deployable monitoring tools.
Cost-Effective and Wireless Portable Device for Rapid and Sensitive Quantification of Micro/Nanoplastics
Researchers developed a wireless portable device for rapid quantification of micro- and nanoplastics in water samples, offering a field-deployable alternative to laboratory-based analysis for environmental monitoring.