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Papers
61,005 resultsShowing papers similar to Plasmonic filter paper for microplastic detection: SERS enhancement, size dependence, and quantitative limitations
ClearA 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.
Detecting polystyrene nanoplastics using filter paper-based surface-enhanced Raman spectroscopy
Researchers developed a filter paper-based surface-enhanced Raman spectroscopy (SERS) method for detecting polystyrene nanoplastics, achieving a detection limit of 10 μg/mL using gold nanoparticles deposited on filter paper with only 50 μL sample volume.
From molecular to nanoplastic SERS detection: insights into the role of analytes in plasmonic substrate design
Researchers investigated the gap between using probe molecules to demonstrate SERS substrate efficiency and the practical detection of nanoplastics, developing substrates and protocols that can identify and characterize nanoplastic particles directly in environmental samples.
Detection of Sub-Micro- and Nanoplastic Particles on Gold Nanoparticle-Based Substrates through Surface-Enhanced Raman Scattering (SERS) Spectroscopy
Gold nanoparticle-based SERS substrates were used to detect sub-micro and nanoplastic particles including polystyrene, PET, and PVC, demonstrating that this technique can identify plastic particles below the size threshold of conventional Raman microscopy.
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.
Portable surface-enhanced Raman scattering platform for rapid identification of nanoplastics at single-particle level
Researchers developed a portable, gold-nanoparticle-coated paper substrate for surface-enhanced Raman scattering (SERS) that detects individual plastic particles down to 1 part per trillion, enabling rapid field identification of polystyrene and nylon nanoplastics released from food containers and teabags without laboratory equipment.
Systematic quantitation for microplastics and nanoplastics based on size-fractionated filtration hyphenated to Raman/SERS and slope-matching strategy
Researchers developed a systematic method for accurately measuring micro- and nanoplastics using size-fractionated filtration combined with Raman and surface-enhanced Raman spectroscopy. The approach addresses the challenge of quantifying plastic particles with heterogeneous size distributions, offering a more reliable strategy for environmental monitoring.
3D Plasmonic Gold Nanopocket Structure for SERS Machine Learning‐Based Microplastic Detection
Researchers developed a new paper-based detection system that uses gold nanostructures and machine learning to quickly identify microplastics in water samples. The device works like a filter and sensor combined, capturing microplastics and identifying their type without complex sample preparation. This portable technology could make it much easier to test drinking water and environmental samples for microplastic contamination on-site.
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.
Meniscus‐Confined 3D Printed Nanoparticles: A Comparative Study of Quantitative SERS Detection of Microplastics
Detecting microplastics accurately in environmental samples is technically challenging, and this study introduces a new approach using 3D-printed silver and gold nanoparticle surfaces that amplify the light signal from microplastics when analyzed by Raman spectroscopy. Both types of printed substrates could detect plastic particles at concentrations as low as 0.3–1.2 micrograms per milliliter, with high reproducibility across dozens of repeated measurements. This technology could make routine, sensitive microplastic monitoring faster and more practical for environmental agencies and researchers.
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.
Submicron- and nanoplastic detection at low micro- to nanogram concentrations using gold nanostar-based surface-enhanced Raman scattering (SERS) substrates
This study developed gold nanostar-based surface-enhanced Raman scattering (SERS) substrates capable of detecting submicron- and nanoplastic particles at very low concentrations (micro- to nanogram per liter), filling a gap in analytical methods for the smallest plastic particles in complex matrices such as food and marine waters.
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.
Size-matching effects in quantitative detection of PS nanoplastics using controllable and reusable Ag nanoarrays SERS substrates
Researchers fabricated silver nanoarrays with tunable inter-column spacing in anodized aluminum oxide templates and showed that matching array geometry to target nanoplastic particle size enables sensitive SERS detection (limit of detection 10 µg/mL) in river water, rainwater, and tap water, with the substrate remaining effective after 30 reuse cycles.
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.
Flexible, Transparent, and Microfluidic-Compatible Wafer-Scale Metamaterial Sheets for Dual SEF and SERS Sensing
A flexible, transparent, and microfluidic-compatible sensor fabricated at the wafer scale was developed for detecting particles in water, with applications for microplastic detection. The device advances miniaturized, on-chip analysis of microplastics suitable for integration into portable monitoring tools.
A novel real-time detection SERS method for rapid detection of marine nanoplastics via size-dependent combination analysis of Au@Ag-Polystyrene
Researchers developed a real-time SERS detection method using silver-coated gold nanoparticles (Au@Ag) to rapidly detect nanoplastics in marine conditions, demonstrating that particle diameter significantly enhances SERS performance and enabling low-concentration nanoplastic detection directly in seawater solution.
Breaking theSize Barrier: SERS-Based UltrasensitiveDetection and Quantification of Polystyrene Plastics in Real WaterSamples
Researchers introduced a SERS-based detection platform capable of identifying and quantifying polystyrene plastic particles of diverse sizes in real water samples with ultrasensitive detection limits, offering a practical tool for environmental microplastic monitoring.
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.
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.
Strategies and Challenges of Identifying Nanoplastics in Environment by Surface-Enhanced Raman Spectroscopy
Researchers reviewed the use of surface-enhanced Raman spectroscopy (SERS) as a tool for detecting nanoplastics, which are plastic particles smaller than one micrometer. The study found that SERS offers high sensitivity for identifying individual nanoparticles, but significant challenges remain in applying this technique to complex environmental samples. The review outlines strategies for improving SERS-based nanoplastic detection to better assess environmental and health risks.
Selective Labeling of Small Microplastics with SERS-Tags Based on Gold Nanostars: Method Optimization Using Polystyrene Beads and Application in Environmental Samples
Researchers developed a novel method using gold nanostar-based SERS tags to selectively label and rapidly detect small microplastics on environmental sample filters. The technique reduced analysis time by roughly two orders of magnitude compared to conventional micro-Raman spectroscopy methods. The approach was validated on both fabricated and real marine samples, offering a promising tool for faster microplastic monitoring in environmental studies.
Salt-induced aggregation of gold nanoparticles for sensitive SERS-based detection of nanoplastics in water
Researchers developed a SERS-based nanoplastic detection method using salt-induced aggregation of gold nanoparticles, demonstrating detection of 100 nm polystyrene beads in water by introducing sodium citrate-stabilized AuNPs into samples containing the nanoplastic particles, offering a sensitive screening approach for nanoplastics that are challenging to detect by conventional methods.
Controllable preparation of mesoporous spike gold nanocrystals for surface-enhanced Raman spectroscopy detection of micro/nanoplastics in water
Researchers developed a novel detection method combining membrane filtration and surface-enhanced Raman spectroscopy (SERS) using specially synthesized spiked gold nanocrystals to detect nanoplastics in water. The method can simultaneously enrich and detect nanoplastic particles as small as 20 nanometers, addressing a significant gap in reliable detection techniques for these small plastic contaminants that have been found in human blood and placenta.