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61,005 resultsShowing papers similar to Breaking theSize Barrier: SERS-Based UltrasensitiveDetection and Quantification of Polystyrene Plastics in Real WaterSamples
ClearBreaking the Size Barrier: SERS-Based Ultrasensitive Detection and Quantification of Polystyrene Plastics in Real Water Samples
Researchers developed a surface-enhanced Raman spectroscopy (SERS) method capable of detecting and quantifying polystyrene plastic particles of various sizes — including nanoplastics — in real environmental water samples at ultrasensitive concentrations.
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.
Trace analysis of polystyrene microplastics in natural waters
Researchers developed and evaluated analytical methods for trace-level quantification of polystyrene microplastics and nanoplastics in natural water samples, addressing key challenges in sensitivity and accuracy that limit realistic environmental risk assessment.
Identification of polystyrene nanoplastics using surface enhanced Raman spectroscopy
Researchers demonstrated for the first time that surface-enhanced Raman spectroscopy (SERS) using silver nanoparticles can identify polystyrene nanoplastics as small as 50 nm in real water samples, providing a rapid detection method that bypasses conventional sample preparation and could advance environmental monitoring of nanoplastics previously invisible to standard analytical techniques.
Selective on-site detection and quantification of polystyrene microplastics in water using fluorescence-tagged peptides and electrochemical impedance spectroscopy
Researchers created a portable detection system using fluorescence-tagged peptides and electrochemical sensors to identify polystyrene microplastics in different water types. The method could detect microplastics across a wide size range and in various water conditions, including seawater and tap water. This on-site detection approach could make microplastic monitoring faster and more accessible compared to traditional laboratory methods.
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.
Quantitative and sensitive analysis of polystyrene nanoplastics down to 50 nm by surface-enhanced Raman spectroscopy in water
Researchers developed a highly sensitive method using surface-enhanced Raman spectroscopy to detect and quantify polystyrene nanoplastics as small as 50 nanometers in water samples. The technique achieved detection limits far below what conventional methods can measure, enabling the identification of nanoplastics at environmentally relevant concentrations. This advancement addresses a critical gap in nanoplastic monitoring, as most existing methods cannot reliably detect particles at such small sizes.
Integrating MetalAquaDect SERS platform: Machine-learning assisted real-time monitoring of sub-2mg/L microplastics and nanoplastics in complex matrices
Researchers used a machine learning-assisted SERS platform (AquaDect) to qualitatively and quantitatively detect microplastics and nanoplastics of multiple types and sizes in aqueous solutions at concentrations below 2 mg/L, demonstrating the approach across polystyrene, polyethylene, polypropylene, and PMMA.
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-Resolved SERS Detection of Trace Polystyrene Nanoplastics via Selective Electrosorption
Researchers developed a new method that combines electrical attraction with laser-based detection to identify polystyrene nanoplastics as small as 20 nanometers in water samples. The technique can detect extremely low concentrations and can distinguish between different sizes of nanoplastic particles. This kind of sensitive detection tool is important because it could help scientists better measure the tiny plastic particles in drinking water and food that may pose risks to human health.
Hydrogen Bonding-BasedSERS Method for the Ultrahigh-SensitiveDetection of Nanoplastics in Water
Researchers developed a hydrogen bonding-based SERS strategy using cysteine-modified silver nanoparticles for ultratrace detection of polystyrene nanoplastics in water, achieving detection limits of 50 ng/L and a linear dynamic range spanning 2-3 orders of magnitude across particle sizes of 50-800 nm. Spike-and-recovery experiments in tap water yielded recoveries of 86.7-106.6%, confirming the method's applicability to real water samples.
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.
Hetero-charge-based surface enhanced Raman spectroscopy: An in situ rapid detection strategy for real marine nanoplastics
Researchers developed an in situ SERS detection method using oppositely charged gold nanoparticles to capture and identify nanoplastics directly in seawater without filtration or drying, achieving a detection limit of 0.1 µg/mL in artificial seawater and successfully identifying polystyrene in a real marine sample.
Rapid On-Site and Sensitive Detection of Microplastics Using Zirconium(IV)-Assisted SERS Label
Researchers developed a rapid, portable detection method using specialized spectroscopy that can identify polystyrene microplastics at concentrations as low as 1 part per billion in water. The technique maintained over 90% accuracy when tested in real tap water samples. Affordable, field-ready detection tools like this are essential for monitoring microplastic contamination in food and water systems to protect human health.
The onset of surface-enhanced Raman scattering for single-particle detection of submicroplastics
Researchers demonstrated surface-enhanced Raman scattering (SERS) using gold nanourchins as a detection method for submicroplastic polystyrene particles at the single-particle level, addressing a critical monitoring gap for plastics smaller than 1 micrometer. The approach offers a promising analytical solution for detecting submicron and nanoplastics that conventional techniques cannot reliably quantify.
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.
Quantification of trace polystyrene nanoplastics in aquatic environments using hybrid substrates of gold-loaded dendritic mesoporous silica and silver-decorated graphene nanosheets for surface-enhanced Raman scattering analysis
Researchers developed a surface-enhanced Raman scattering (SERS) detection platform using a hybrid gold-silica and silver-graphene substrate to detect polystyrene nanoplastics in water at concentrations as low as 0.1 μg/mL, achieving 91–109% recovery rates in real lake, ocean, and polluted ditch water samples.
Quantitative detecting low concentration polystyrene nanoplastics in aquatic environments via an Ag/Nb2CT (MXene) SERS substrate
Researchers fabricated an Ag nanoparticle-decorated MXene composite SERS substrate that detects polystyrene nanoplastics down to 10 mg/mL in lake water with high accuracy and recovery rates of 95–107%, and can distinguish nanoplastic types in mixtures using their Raman fingerprint spectra.
A green approach to nanoplastic detection: SERS with untreated filter paper for polystyrene nanoplastics
Researchers developed a simple and affordable method to detect nanoplastics in water using silver nanoparticles and ordinary filter paper, achieving detection of polystyrene particles as small as 100 nanometers. The method successfully identified nanoplastics in both drinking water and tap water samples. Better detection tools like this are important because they make it easier to monitor nanoplastic contamination in the water people actually drink, helping researchers understand real-world exposure levels.
Efficient silver-based hybrid nano-assemblies for polystyrene nanoparticles SERS detection
Researchers built nanoscale silver-silicon hybrid platforms that can detect polystyrene nanoplastics using a technique called surface-enhanced Raman spectroscopy. The platforms achieved high sensitivity with detection limits in the microgram-per-milliliter range. The technology offers a promising approach for identifying nanoscale plastic particles that are too small for conventional detection methods.
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.
Direct Detection of Polystyrene Nanoplastics in Water Using High-sensitivity Surface-enhanced Raman Scattering with Ag Nanoarray Substrates
Researchers developed a fast, sensitive detection method using silver nanostructures and laser light scattering (surface-enhanced Raman scattering) to identify polystyrene nanoplastics in water at concentrations as low as 10 micrograms per milliliter, offering a practical tool for monitoring nanoplastic contamination in real-world water sources.
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.
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.