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High performance and recyclable Au-Ag/TiO2/PS substrate for the detection of organic pollutants
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Researchers fabricated a surface-enhanced Raman scattering substrate by growing bimetallic gold-silver nanoparticles on titanium dioxide nanorods anchored to porous silicon, producing a highly sensitive and recyclable platform capable of detecting trace organic pollutants in environmental samples.
A highly sensitive and recyclable surface-enhanced Raman scattering (SERS) substrate was successfully fabricated through in situ reduction of bimetallic gold-silver nanoparticles (Au-Ag NPs) on vertically aligned titanium dioxide nanorods (TiO2 NRs) grown on porous silicon (PS). The...
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Development of a simple SERS substrate for the detection of pollutants and nanoplastics
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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.
Synthesis of a capillary surface-enhanced Raman scattering substrate integrating sampling and detection based on meniscus self-assembled technology
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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.
Urchin-like covalent organic frameworks templated Au@Ag composites for SERS detection of emerging contaminants
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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.
High-sensitivity SERS sensor leveraging three-dimensional Ti3C2Tx/TiO2/W18O49 semiconductor heterostructures for reliable detection of trace micro/nanoplastics in environmental matrices
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Researchers developed a new sensor that can detect trace amounts of micro- and nanoplastics in environmental samples like rainwater, soil, and wastewater. The sensor uses a layered semiconductor structure to enhance Raman spectroscopy signals, achieving high sensitivity and the ability to identify multiple plastic types at once. This technology could make it faster and more practical to monitor plastic pollution in real-world settings.
Detection of nanoplastics through low-cost SERS substrates, based on 3D islands of aggregated gold nanoparticles on aluminum foil, for wide ranging applications
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Researchers developed a low-cost surface-enhanced Raman spectroscopy (SERS) substrate by combining aluminium foil with 3D aggregates of gold nanoparticles stabilised by cucurbit[5]uril, enabling sensitive nanoplastic detection through plasmonic coupling. The substrate achieved trace-level analyte detection and offers a practical, scalable approach for nanoplastic identification across a wide range of environmental and analytical applications.
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When a large batch of papers lands in the Atlas, we read through it and send a short write-up of what stood out.