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Papers
61,005 resultsShowing papers similar to Flexible Thermoelectric Ag Film/PEDOT:PSS/AgNPs Composites: Toward Universal and Ultrasensitive Sensing
ClearFlexible ThermoelectricAg Film/PEDOT:PSS/AgNPs Composites:Toward Universal and Ultrasensitive Sensing
Researchers integrated thermoelectric PEDOT:PSS with silver nanoparticles and silver films to construct a flexible SERS platform, demonstrating that the thermoelectric field actively modulates AgNP carrier concentration to boost both chemical and electromagnetic Raman enhancement. The platform achieved microplastic detection limits of 0.005% and SARS-CoV-2 spike protein detection at 10^-8 M, with the thermoelectric effect enabling active performance regulation.
Thermoelectrically Driven Dual-Mechanism Regulation on SERS and Application Potential for Rapid Detection of SARS-CoV-2 Viruses and Microplastics
Researchers developed a highly sensitive thermoelectrically driven surface-enhanced Raman scattering (SERS) substrate for detecting trace-level contaminants. The study demonstrated that applying a temperature gradient to the substrate dramatically enhanced detection sensitivity, with potential applications for rapid identification of microplastics and other environmental contaminants at very low concentrations.
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.
Bacterial Nanocellulose Membrane Deposited with Silver Nanoparticles for SERS Detection of Microplastics
Researchers developed a flexible surface-enhanced Raman scattering (SERS) substrate by depositing well-dispersed silver nanoparticles onto bacterial nanocellulose membranes, achieving a Raman signal enhancement factor of up to 331 for polyethylene solutions at 0.1 g/L. The substrate combines the electromagnetic enhancement of AgNPs with the flexible, porous structure of bacterial nanocellulose for practical microplastic detection applications.
Flexible, 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.
Synergistically Enhanced Ta2O5/AgNPs SERS Substrate Coupled with Deep Learning for Ultra-Sensitive Microplastic Detection
Researchers engineered a high-performance Ta2O5/AgNPs composite surface-enhanced Raman scattering (SERS) substrate and coupled it with deep learning algorithms for ultra-sensitive detection of microplastics. Through morphology modulation and band-gap engineering of the semiconductor support, the system achieved significantly enhanced Raman signal amplification, enabling identification of microplastics at very low concentrations.
Highly Scalable, Wearable Surface‐Enhanced Raman Spectroscopy
Researchers developed highly scalable wearable surface-enhanced Raman spectroscopy (SERS) sensors capable of detecting molecular-level chemical information from the skin, advancing the field of non-invasive chemical sensing with potential applications in environmental exposure monitoring.
Urchin-like covalent organic frameworks templated Au@Ag composites for SERS detection of emerging contaminants
Researchers fabricated gold-silver core-shell composites on urchin-like covalent organic frameworks to create a highly sensitive platform for detecting trace contaminants using Raman spectroscopy. The material successfully detected sulfonamide antibiotics and polystyrene nanoplastics at very low concentrations using a portable spectrometer. The study demonstrates a practical approach for field-based detection of emerging environmental contaminants at parts-per-billion levels.
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.
Detection of PFAS and nanoplastics in serum by using Ag nanowires film SERS substrate with good reusability and sensitivity
Researchers developed a reusable silver nanowire sensor that can detect PFAS chemicals and nanoplastics in blood serum samples using surface-enhanced Raman spectroscopy. The sensor achieved very high sensitivity and could be reused up to 10 times without significant loss of accuracy. This technology offers a practical new method for monitoring these emerging contaminants in biological samples for both clinical and environmental purposes.
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.
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 Scalable Synthesis of Ag Nanoporous Film As an Efficient SERS-Substrates for Sensitive Detection of Nanoplastics
Researchers developed a new sensor using silver nanoparticles that can detect nanoplastics at very low concentrations using a technique called SERS (surface-enhanced Raman spectroscopy). The sensor could identify tiny polystyrene particles down to 50 nanometers in size. Better detection tools like this are essential for monitoring nanoplastic contamination in food and water, since current methods often miss the smallest and potentially most dangerous plastic particles.
Flexible 3D Plasmonic Web Enables Remote Surface Enhanced Raman Spectroscopy
Researchers developed a flexible three-dimensional plasmonic web embedded in a biohybrid material that enables highly sensitive remote detection of chemicals using surface-enhanced Raman spectroscopy. The technology creates abundant electromagnetic hot spots that can detect molecules at extremely low concentrations. The study suggests this sensing platform could be applied to environmental monitoring, including the detection of microplastic-associated contaminants.
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.
Investigation into the Regulation of Ag NPs/ZnO NRs/GaN Heterostructure SERS Substrate via Pyroelectric Effects
Researchers synthesized an Ag NPs/ZnO NRs/GaN heterostructure with type II staggered energy band alignment and demonstrated that pyroelectric effects from the ZnO and GaN components regulate charge transfer and enhance SERS substrate performance for sensitive chemical and microplastic detection.
Investigationinto the Regulation of Ag NPs/ZnO NRs/GaNHeterostructure SERS Substrate via Pyroelectric Effects
Researchers synthesized a Ag nanoparticles/ZnO nanorods/GaN heterostructure with type II staggered energy bands and investigated how pyroelectric effects from ZnO and GaN regulate the SERS substrate performance, demonstrating enhanced Raman signal amplification for sensitive microplastic detection applications.
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.
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.
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.
Ionic Liquid-Assisted Thermal Evaporation of Bimetallic Ag–Au Nanoparticle Films as a Highly Reproducible SERS Substrate for Sensitive Nanoplastic Detection in Complex Environments
Scientists developed a highly sensitive sensor using silver-gold nanoparticle films that can detect tiny PET nanoplastics in complex liquids like tap water, lake water, milk, and wine. The sensor could identify nanoplastics at concentrations as low as 1 microgram per milliliter using a light-based technique called SERS. This kind of detection tool is important for monitoring nanoplastic contamination in food and drinking water to better understand human exposure levels.
Detection of Silver Nanoparticles in Seawater Using Surface-Enhanced Raman Scattering
Researchers developed a surface-enhanced Raman scattering (SERS) detection strategy for silver nanoparticles in seawater, achieving sensitive identification of PVP-coated AgNPs at environmentally relevant concentrations.
Optically Controlled Aggregation of Gold Nanorods for Ultrasensitive in-Liquid Sensing: From Biomolecules to Nano-Plastics
Researchers used radiation pressure to control in-situ aggregation of gold nanorods, enabling ultrasensitive SERS-based detection of biomolecules and nanoplastics in liquid environments at trace concentrations.
Synthesis of a capillary surface-enhanced Raman scattering substrate integrating sampling and detection based on meniscus self-assembled technology
Researchers fabricated a novel capillary-based surface-enhanced Raman scattering substrate by self-assembling silver nanoparticles on capillary inner walls via meniscus evaporation, achieving detection limits of 10 µg/L for polystyrene nanoplastics and 1 µg/L for antibiotics in environmental samples.