Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 20 of 49 for “"LSPR"”.
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Investigation of metal nanomaterials as a sensing element in LSPR-based optical fibre sensor development
… of the localised surface plasmon resonance (LSPR) phenomenon, which occurs at a nanoscale level when light interacts with metallic nanoparticles at a resonance wavelength. The LSPR effect of metallic nanomaterials has shown a strong dependence on the local surrounding environment. A small …
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Fabrication of Lspr-Based Multiplexed and High-Throughput Biosensor Platforms for Cancer and Sars-Cov-2 Diagnosis
… and their localized surface plasmon resonance (LSPR) property will be introduced. LSPR is an optical property in noble metallic nanoparticles that is referred to as the collective oscillation of free electrons upon light irradiation. It is highly dependent on the shape, size, and dielectric …
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Integration von Rezeptoren in inerte Matrices zur markierungsfreien und quantitativen Detektion biospezifischer Wechselwirkungen mit LSPR-aktiven Nanopartikeloberflächen
… Oberflächenbeschichtungen erzeugt und mittels LSPR-Imaging ausgelesen; diese wurden anschließend fluoreszenzspektroskopisch visualisiert, wobei eine gute Übereinstimmung bezüglich Geometrie und Ausmaße der erzeugten Strukturen erhalten wurde. Eine eindeutige Detektion und Quantifizierung …
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Creation of novel gold-nanorod-based localized surface plasmon resonance biosensors
… based and localized surface plasmon resonance (LSPR) based sensors, this thesis reports the studies on the development of a novel sensitive gold nanorod (GNR) based label-free LSPR optical fibre biosensor, and the development of a novel robust method for effectively modifying the surface of …
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Plasmonic Paper as a Novel Chem/Bio Detection Platform
… termed localized surface plasmon resonance (LSPR), falls into the visible spectral region for noble metals such as gold, silver and copper. LSPR of metal nanostructures is sensitive to numerous factors such as composition, size, shape, dielectric properties of surrounding medium, and …
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Exploiting plasmons to sense interfacial changes at the nanoscale
… exhibit localized surface plasmon resonances (LSPR). The LSPR scattering spectrum is sensitive to the size, shape and local environment of the nanoparticle. However, this sensitivity can be a limiting factor in applications of plasmonic materials in complex chemical environments. Contaminants …
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Non-metallic nanostructures for light-driven chemistry and catalysis
… known as localized surface plasmon resonance (LSPR) oscillations. This effect has been harnessed both for harvesting visible light and for catalyzing thermodynamically uphill reactions. However, the scarcity and high cost of coinage metals limit their widespread application as plasmonic …
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PLASMONIC NANOPARTICLES AS VERSATILE NANORULERS FOR SENSING APPLICATIONS: DEVELOPING THE NANOPARTICLE-ON-MIRROR ARCHITECTURE
… creation of localized surface plasmon resonant (LSPR) states. The frequency at which these oscillations occur is dependent upon a number of factors, one of which is the proximity of another plasmonic nanoparticle. The relationship between the frequency of the LSPR oscillations and the distance …
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Studying DNA-Directed Nanoassembly, Hybridization and Mismatch-Discrimination via Plasmon Scattering of Gold Nanoparticles
… structures, successfully correlated to the LSPR wavelength shift and the plasmon color change, showed that their homogeneous formations in bulk solution were influenced by parameters inherent to nAu and DNA. The progress of hybridization was monitored through the localized surface plasmon …
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High pressure surface enhanced Raman scattering spectroscopy
… localized surface plasmon resonance (LSPR) spectra of a photonic substrate and Raman scattering spectra of bezenethiol (BT) monolayers adsorbed upon were measured simultaneously under high pressure. The LSPR split into two peaks under initial compression, and both peaks redshifted with …
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Sensing and Imaging Biomolecules with Plasmonic Nanoparticle Assemblies Coupled with Darkfield Microscopy
… is called localized surface plasmon resonance (LSPR). The LSPR frequency is extremely sensitive to the size, shape, refractive index at the metal-dielectric interface, and other nearby metal nanoparticles. In an assembly of proximal nanoparticles, the LSPR of individual particles can couple to …
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Pembangunan sensor asid borik menggunakan sifat resonans plasmon permukaan setempat nanoplat emas
Resonans Plasmon Permukaan Setempat (LSPR) adalah satu fenomena optik hasil interaksi elektron bebas dengan gelombang elektromagnet cahaya pada permukaan nonozarah logam. Sifat LSPR nanozarah logam yang sangat sensitif kepada sifat dielektrik medium persekitaran menyebabkan fenomena ini digunakan …
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Tailoring Optical and Plasmon Resonances in Core-Shell and Core-Multishell Nanowires
… the localized surface plasmon resonances (LSPR) in metal and semiconductor (or dielectric) based core-shell (CS) and core-multishell (CMS) NWs can be tailored to achieve novel negative-index metamaterials (NIM), extreme absorbers, invisibility cloaks and sensors. Particularly, in this …
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Amorphous silica-based carbon nanotube and silver nanoprism coatings: synthesis and investigation of their optical properties /
… in the NIR spectral region. Nanoparticles, which LSPR peak was nearer to the excitation wavelength have negative nonlinear absorption and behave as saturable absorbers. It was found, that in prepared hybrid silica-APTES coatings amount of used APTES is crucial for deposition rate and behaviour of …
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Design and characterization of plasmonic nanoprobes and interparticle interactions for surface enhanced raman scattering and biomolecular detection
… and the localized surface plasmon resonance (LSPR). The interparticle plasmonic coupling induced SERS and LSPR characteristics are probed by experimental measurements and theoretical simulations for establishing the correlation between the interparticle structures and the spectroscopic …
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Trimetallic gold silver copper nanorods for carbon dioxide reduction
… localized surface plasmon resonance peaks (LSPR) were measured with a UV-Vis spectrometer. A standard size of trimetallic rods of widths between 10-14 nm were formed. A miniature size of these rods of widths between 4-8 nm were also created by increasing the volume of seeds added to the …
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Paper-Based Sensors for Contaminant Detection Using Surface Enhanced Raman Spectroscopy
… of the localized surface plasmon resonance (LSPR) band that dictates the SERS enhancements. It was concluded that lower molar ratio (1:1 and 2:1) of citrate-to gold produced better SERS signal enhancements and broader LSPR band. Therefore, use of lower molar ratio (MR) was recommended for …
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Localized Surface Plasmon Resonance: Nanoscale Sensing for Processes at Interfaces
… of localized surface plasmon resonance (LSPR) to characterize the interaction of relevant classes of biomolecules, e.g. peptides, proteins, lipids and DNA strands, at solid-liquid interfaces, with an emphasis on deciphering kinetics and pathways of dynamic adsorption processes. LSPR-based …
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Infrared Energy Conversion in Plasmonic Fields at Two-Dimensional Semiconductors
… infrared localized surface plasmon resonance (LSPR). Excitation and damping dynamics of LSPR in heterostructures of noble metal nanoantennas and molybdenum- or tungsten-disulfide (MoS2; WS2) monolayers were examined by parallel synthesis of (i) DDA electrodynamic simulations and (ii) near-field …
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Engineering the Optical Properties of Gold Nanostructures for Biomedical Applications
… to have localized surface plasmon resonance: LSPR) peaks in the near-infrared region with strong absorption. These optical properties allow for the imaging of biological tissues at deeper penetration and the photoablation of cancer. By replacing AuCl<sub>4</sub>- with AuCl<sub>2</sub>-, Au …
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