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Showing 1 to 20 of 35 for “"SERS substrates"”.
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Surface wetting methods compatible with solid SERS substrates
… used for surface-enhanced Raman spectroscopy (SERS). Effectiveness of the sensors depends on how well ligand and analyte molecules can diffuse into the regions of highest enhancement. In liquid phase sensing, this is often contingent upon the ability of the solvent to completely wet the …
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Methods for the Detection of Biological Analytes on Dendritic Surface-Enhanced Raman Scattering (SERS) Substrates
… easy to use. Surface-enhanced Raman scattering (SERS) is a promising method for detecting chemical compounds in various media. However, traditional SERS struggles with direct detection due to weak signals and inconsistent results, stemming from low analyte concentration at SERS-active sites and …
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Performance assessment of Au SERS substrates prepared by deposition of Au nanoparticles on screen-printed SiO2 particle films
Surface-enhanced Raman spectroscopy (SERS) is a highly studied technique for simple and rapid trace analysis. Screen-printing, a low-cost fabrication method, has been proposed as a reproducible and affordable approach for the preparation of 3D SERS-active substrates. In this work, a new …
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Surface enhanced Raman spectroscopy based on black silver and micro-pyramids array
Surface-enhanced Raman spectroscopy (SERS) has been increasingly utilized as an analytical technique with significant chemical and biological applications due to its high sensitivity, selectivity and accuracy. As nanotextured surfaces play a key role in SERS, production of highly sensitive, low …
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Nanobiotechnology Enabled Environmental Sensing of Water and Wastewater
… Second, surface-enhanced Raman spectroscopy (SERS) was applied for environmental detection of a range of analytes. Gold nanoparticle (AuNP)-based SERS substrates were fabricated by droplet evaporation-induced aggregation on a hydrophobic substrate. These SERS substrates were then applied for …
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Ultratrace Neurotransmitters SERS Sensing
Surface-enhanced Raman scattering (SERS) spectroscopy is a powerful analytical technique for ultrasensitive detection of chemicals and biomolecules. As the high sensitivity of SERS requires analytes to be in close contact with a plasmonic substrate, the detection of analyte molecules with low …
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Combining Thin Film Silver Nanoparticles and Microfluidics to Create Reusable and Versatile Surface-Enhanced Raman Scattering Devices
Surface enhanced Raman Scattering (SERS) spectroscopy is a powerful analytical tool that can be used for detecting a wide range of analytes at extremely low concentrations. Despite its utility, SERS is plagued by reusability and reproducibility issues that limit its user base and prevalence in the …
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Paper-Based Sensors for Contaminant Detection Using Surface Enhanced Raman Spectroscopy
Surface enhanced Raman spectroscopy (SERS) is highly promising analytical technique for trace detection of analytes. It is particularly well suited for environmental analyses due to its high sensitivity, specificity, ease of operation and rapidity. The detection and characterization of …
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Manufacture and utilization of a biodegradable sensor platform from gold coated zein nanophotonic films to detect acrylamide and Ara-h1 using SERS
… enabled is Surface Enhanced Raman Spectroscopy (SERS). SERS is a highly sensitive and specific technique which provides molecular fingerprinting, with the enhancement effect as a result of roughened noble metal surfaces. The platform for these surfaces are generally made out of non-biodegradable, …
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Nano Cost Nano Patterned Template for Surface Enhanced Raman Scattering (SERS) for IN-VITRO and IN-VIVO Applications
… substrate for Surface Enhanced Raman Scattering (SERS). Raman signals can be obtained from the specimen surface of opaque specimens. Most importantly, the metallic nanostructure can be bonded on the end of a probe / a needle, and the other end is coupled to a distant spectrometer. This opens up …
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Plasmonic Au nanostructures for surface-enhanced raman spectroscopy
… Surface-enhanced Raman spectroscopy (SERS) is capable of solving the issue of sensitivity by enormously amplifying the Raman signal through localized surface plasmon resonance (LSPR) that is induced by so-called plasmonic nanostructures. Since the inception of SERS in 1970s, …
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Solid-state superionic stamping: Patterning 3D metallic micro- and nanostructures for surface enhanced Raman sensing
… 'stamping' of color onto silver-coated flexible substrates using the S4 process, replicating an image with metallic nanostructures that plasmonically produce the desired color locally. Surface-Enhanced Raman Spectroscopy (SERS) stands out as a powerful, label-free tool for observing, detecting, …
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Bio-interfaced Nanolaminate Surface-enhanced Raman Spectroscopy Substrates
Surface-enhanced Raman spectroscopy (SERS) is a powerful analytical technique that combines molecular specificity of vibrational fingerprints offered by Raman spectroscopy with single-molecule detection sensitivity from plasmonic hotspots of noble metal nanostructures. Label-free SERS has attracted …
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3-D Topology Optimization of Spatially Averaged Surface-Enhanced Raman Devices
… optimization for Surface Enhanced Raman Sensing (SERS) have predominantly focused on single particle emissions or two-dimensional systems, which are impractical for actual fabrication. An objective function represented by ട|E|⁴dV effectively approximates Raman enhancement. This function tends to …
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Development of surface-enhanced Raman spectroscopy coupled with nanosubstrates and machine learning to improve food safety
… integrating surface-enhanced Raman spectroscopy (SERS) with advanced transformer-based machine learning models. This dissertation explores the development of novel SERS substrates through electrospinning. Electrospun polyacrylonitrile (PAN) nanofibers were functionalized and coated with Au@Ag …
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Development of a surface-enhanced Raman sensor for detection in complex mixtures.
Surface-enhanced Raman scattering (SERS) is a powerful analytical signal transduction mechanism for the detection of analytes in aqueous environments, largely free from interfering water signals and capable of obtaining unique molecular signatures from structurally similar analytes. These …
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Towards Colloidal Self-Assembly for Functional Materials
… their applicability as porous electrodes and SERS substrates, respectively. Subsequently, silica nanoparticles were assembled into nanostructures that preferentially scatter blue light using both DNA and polymer-colloid interactions. Finally, rod-sphere structures made from DNA-coated gold …
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Plasmonic Paper as a Novel Chem/Bio Detection Platform
… enhancement. Surface enhanced Raman scattering (SERS) involves dramatic enhancement of the intensity of the Raman scattering from the analyte adsorbed on or in proximity to a nanostructured metal surface exhibiting such strong EM field enhancement. Both LSPR and SERS have been widely investigated …
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Tailoring plasmonic substrates for SERS
SERS is a useful spectroscopic technique that was discovered 30 years ago, and has recently seen a renaissance in research. Sphere segment void (SSV) substrates have been developed as reproducible, stable SERS substrates by electrodeposition of a metal through a colloidal template.<br/>The effect …
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High pressure surface enhanced Raman scattering spectroscopy
Surface-enhanced Raman scattering spectroscopy (SERS) was combined with the diamond anvil cell technique to study molecular monolayers and single molecules under high pressure. Vibrational spectra up to 8 GPa were obtained for self-assembled monolayers (SAMs) of the energetic material simulant …
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