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61,005 resultsShowing papers similar to Flexible, Transparent, and Microfluidic-Compatible Wafer-Scale Metamaterial Sheets for Dual SEF and SERS Sensing
ClearFlexible, Transparent,and Microfluidic-CompatibleWafer-Scale Metamaterial Sheets for Dual SEF and SERS Sensing
Researchers developed flexible, transparent, wafer-scale metamaterial sheets capable of simultaneously performing surface-enhanced fluorescence and surface-enhanced Raman spectroscopy sensing, addressing long-standing challenges around dielectric spacers and limited plasmonic resonance band coverage in microfluidic-compatible formats.
A gold nanoparticle doped flexible substrate for microplastics SERS detection
Researchers developed a gold nanoparticle-doped filter paper as a flexible substrate for detecting microplastics using surface-enhanced Raman scattering. The method achieved a minimum detectable concentration of 0.1 grams per liter for PET in water and was successfully validated by detecting microplastics in tap water and pond water samples.
Development of Gold Nanostars Doped Flexible Substrate for Polystyrene Microplastic Detection Using Surface-enhanced Raman Scattering (sers)
Detecting microplastics in the environment requires fast, sensitive analytical tools, and this study developed a low-cost sensor using gold nanostars on a flexible substrate to detect polystyrene microplastics via surface-enhanced Raman scattering (SERS). The gold nanostar structures amplify the Raman signal of plastic particles, enabling detection at very low concentrations. This kind of portable, affordable detection technology could help expand microplastic monitoring beyond well-equipped research labs.
Superhydrophobic Surface-Enhanced Raman Spectroscopy (SERS) Substrates for Sensitive Detection of Trace Nanoplastics in Water
Researchers developed a new method to detect extremely small nanoplastics in water by combining a water-repelling surface that concentrates particles with a technique called SERS that amplifies their chemical signal. The method can identify common nanoplastics like polystyrene and PMMA at very low concentrations, which is an important step toward monitoring these tiny pollutants that are difficult to detect with current tools.
Plasmonic filter paper for microplastic detection: SERS enhancement, size dependence, and quantitative limitations
Researchers fabricated SERS-active gold-coated filter paper substrates and evaluated their performance for detecting microplastics, finding that SERS signal strength depends significantly on particle size and that the technique has inherent limitations for quantitative analysis of microplastic concentrations.
Microplastic in situ detection based on a portable triboelectric microfluidic sensor
Researchers developed a portable triboelectric microfluidic sensor that detects microplastics in water by measuring electrical charges generated as particles flow through a microchannel, demonstrating linear response to polystyrene particle size and concentration for field-deployable environmental monitoring.
A Highly Sensitive SERS Substrate for Detection of Nanoplastics in Water
Researchers developed a highly sensitive SERS-based substrate for detecting nanoplastic particles in water at very low concentrations. Improved detection tools for nanoplastics are essential for monitoring their presence in drinking water and understanding exposure risks to human health.
One-step detection of nanoplastics in aquatic environments using a portable SERS chessboard substrate
Researchers developed a portable surface-enhanced Raman scattering (SERS) detection platform that captures and identifies nanoplastics from water samples in under one minute using silver nanoparticle-enhanced filter substrates, achieving a detection limit of 0.001 mg/mL for polystyrene nanoplastics across sizes from 30 to 1000 nm.
MicroMetaSense: Coupling Plasmonic Metasurfaces with Fluorescence for Enhanced Detection of Microplastics in Real Samples
The MicroMetaSense platform coupled plasmonic metasurfaces with fluorescence spectroscopy to achieve enhanced detection of microplastics, including particles smaller than 5 µm and nanoplastics below 1 µm. The approach overcame the detection limitations of existing methods, enabling sensitive MP identification in complex environmental and food matrices.
Advanced microplastic monitoring using Raman spectroscopy with a combination of nanostructure-based substrates
Researchers reviewed advances in Raman spectroscopy and surface-enhanced Raman scattering (SERS) — a technique that amplifies light signals using metallic nanostructures — for detecting micro- and nanoplastics at trace concentrations in environmental samples, highlighting new plasmonic materials, 3D substrates, and microfluidic chip platforms that enable on-site monitoring.
Development of a simple SERS substrate for the detection of pollutants and nanoplastics
Researchers fabricated silver- and gold-coated silicon SERS substrates and demonstrated their ability to detect nanoplastic particles as small as 50 nm by Raman mapping, achieving picomolar sensitivity for model compounds and showing strong potential for environmental monitoring of nanoplastics in food and water.
Nanostructured Raman substrates for the sensitive detection of submicrometer-sized plastic pollutants in water
Researchers developed nanostar-dimer-embedded nanopore substrates for surface-enhanced Raman scattering (SERS) and showed they can detect submicron polystyrene microplastic particles as small as 0.4 micrometers at concentrations of 50 ppm within minutes and without sample pretreatment, offering a sensitive and rapid analytical tool for detecting the smallest plastic pollutants in water.
Liquid metasurface for size-independent detection of microplastics
Researchers developed a liquid metasurface sensor that can detect and quantify microplastics regardless of their size, overcoming a major limitation of existing detection methods. The technology uses surface-enhanced Raman scattering on a self-assembled liquid surface to eliminate the size-dependent detection problems that plague conventional solid substrates. This advancement could make it significantly easier to accurately measure microplastic contamination in environmental samples.
Direct On-AnalyteFabrication of Au Nanoparticlesfor Substrate-Free SERS Detection of Micro and Nanoplastics
Researchers developed a substrate-free SERS detection method using direct on-analyte fabrication of gold nanoparticles to identify micro- and nanoplastic particles at extremely low concentrations in complex environmental matrices. The approach leverages characteristic Raman fingerprints of plastic polymers without requiring conventional fixed substrates, enabling more flexible and sensitive detection.
Semiconductor Heterojunction-AgNPs Mediated Surface-Enhanced Raman Spectroscopy (SERS) Sensor for Portable Miniaturized Detection Platform
Researchers developed a novel surface-enhanced Raman spectroscopy sensor for detecting micro- and nanoplastics in water, achieving detection of polystyrene particles as small as 1 nanometer. The sensor uses a semiconductor heterojunction with silver nanoparticle array that provides high sensitivity and signal repeatability. The study demonstrated successful trace detection of nanoplastics in real lake and city water samples using a portable spectrometer, making field-based monitoring more feasible.
Flexible Au tape-based SERS sensor for atmospheric microplastic detection
Researchers developed a flexible gold nanoparticle tape sensor that uses a laser-light technique called SERS (surface-enhanced Raman scattering) to rapidly detect and identify different types of microplastics directly from air samples. This tool fills a major gap in microplastic monitoring by enabling real-time identification of airborne plastic particles, which are among the least-studied exposure routes.
Measurement of Low Concentration of Micro-Plastics by Detection of Bioaffinity-Induced Particle Retention Using Surface Plasmon Resonance Biosensors
Researchers used surface plasmon resonance biosensors coated with biological recognition molecules to detect microplastics at low concentrations in water, demonstrating a sensitive and label-free detection approach that could be adapted for real-time environmental monitoring.
RF MEMS Resonance Sensor for Measuring Microplastics Concentration
Researchers designed an RF MEMS resonance sensor capable of detecting microplastics in water at low cost, offering a practical alternative to expensive conventional particle analyzers for environmental monitoring.
Detection of Polystyrene Microplastic Particles in Water Using Surface-Functionalized Terahertz Microfluidic Metamaterials
Researchers developed a surface-functionalized terahertz metamaterial microfluidic sensor for detecting polystyrene microplastic particles in water, demonstrating that microplastics captured at functionalized gap structures shift the resonant frequency of the metamaterial, enabling label-free detection with findings validated by finite-difference time-domain simulations.
Detection of microplastics by microfluidic microwave sensing: An exploratory study
Researchers developed a compact microwave sensor on a microfluidic chip to detect microplastics in water samples. The system works by measuring how the presence of plastic particles changes the electrical properties of water. While the technology shows promise as a rapid and portable detection method, its current sensitivity needs improvement before it can detect the low microplastic concentrations typically found in natural freshwater.
SRR-Based Disposable Microwave-Microfluidic Sensor for Assessing Liquid Carrier Influence on Microplastic Detection
Researchers developed a double split-ring resonator microwave-microfluidic sensor that can detect polyethylene microplastics in various liquid carriers (including agricultural water with dissolved salts), minimizing the effect of liquid composition on detection accuracy.
Exploring the Application of Terahertz Metamaterials Based on Metallic Strip Structures in Detection of Reverse Micelles
Researchers developed terahertz metamaterial sensors based on microfluidic technology for detecting and characterizing microplastics in liquid samples. The approach offers high sensitivity for distinguishing polymer types based on their terahertz absorption signatures.
A simple and rapid preparation of Au-Ag alloy nanourchins flexible membrane for ultrasensitive SERS detection of microplastics in water environment
Researchers fabricated flexible gold-silver alloy nanourchins on a membrane substrate and demonstrated their use as a SERS sensor for rapid, sensitive detection of microplastics in water, achieving detection of multiple polymer types at low concentrations without complex sample preparation.
Toward Continuous Nano-Plastic Monitoring in Water by High Frequency Impedance Measurement With Nano-Electrode Arrays
Researchers explored high-frequency impedance measurements using CMOS nano-electrode arrays as a potential tool for real-time, label-free monitoring of nanoplastic particles in water, demonstrating nano-scale detection capability with potential for continuous environmental monitoring.