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 60 for “"surface enhanced Raman scattering (SERS)"”.
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DNA diagnostic assays using Surface Enhanced Raman Scattering (SERS)
… oligonucleotides and silver nanoparticle surfaces, which generate strong surface enhanced Raman scattering (SERS) responses through specific hybridisation events which correlate to the presence of targeted sequences. During this study, the attraction of oligonucleotides onto metal …
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DNA origami substrates as a versatile tool for surface-enhanced Raman scattering (SERS)
Surface-enhanced Raman scattering (SERS) is a promising tool to obtain rich chemical information about analytes at trace levels. However, in order to perform selective experiments on individual molecules, two fundamental requirements have to be fulfilled. On the one hand, areas with high local …
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Next-generation surface-enhanced Raman scattering (SERS) nanoparticles for biodiagnostics and intraoperative imaging
Submission published under a 24 month embargo labeled 'Closed Access', the embargo will last until 2024-08-01
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Methods for the Detection of Biological Analytes on Dendritic Surface-Enhanced Raman Scattering (SERS) Substrates
… must be portable, affordable, and 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 …
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Nano Cost Nano Patterned Template for Surface Enhanced Raman Scattering (SERS) for IN-VITRO and IN-VIVO Applications
Raman scattering is a well-known technique for detecting and identifying complex molecular level samples. The weak Raman signals are enormously enhanced in the presence of a nano-patterned metallic surface next to the specimens. This dissertation describes a technique to fabricate a novel, low …
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Integrated plasmonic nano-antenna devices
Surface plasmon polaritons (SPPs) are evanescent electromagnetic waves propagating at the interface between a dielectric and a metal. Following recent developments, they may find application in future generations of opto-electronic devices. An example of a plasmonic device is a nano-antenna. …
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Raman and SERS studies of filamentous fungi
… and act as agents of disease and decay. Surface-enhanced Raman scattering (SERS) has attracted significant attention as an analytical method for chemical and biological identification. For SERS experiments, it is essential to generate gold nanoparticles (AuNPs) with proper sizes and …
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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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Tailored Optical Properties on the Macroscale by Template-Assisted Self-Assembly of Plasmonic Nanoparticles
… on the macroscale via controlled hierarchical surface-assembly of plasmonic nanoparticles. The fundamental concept pursued in this thesis can be divided into three sub-goals that are addressed in individual publications: (I) controlled large-scale synthesis of nanoscale building blocks, (II) …
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Modeling and Application of Flow -Limited Field -Injection Electrostatic Spraying (Ffess)
… for single nanowires and thin films and surface enhanced Raman scattering (SERS). Some engineering applications of FFESS and possible future work will be briefly discussed.
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Silicon nano-structure fabrication and application for surface-enhanced Raman spectroscopy
… on micro- and mesoscale nonplanar surfaces, a nano-pillar forest is fabricated on nonplanar silicon surfaces in various morphologies such as silicon atomic force microscopy (AFM) tips and pyramidal pits. By integrating nano-pillars on inverse silicon micro-pyramid array devices, we …
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Design and characterization of plasmonic nanoprobes and interparticle interactions for surface enhanced raman scattering and biomolecular detection
… of the nanoparticles responsible for the surface enhanced Raman scattering (SERS) 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 …
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Development of a novel SERS assay for the detection of MiRNA and the synthesis and use of lipid soluble nanoparticles for the application to cardiovascular disease
… conjugates, together with surface-enhanced Raman scattering (SERS) to detect and identify CVD specific microRNA sequences. The use of a Raman reporter functionalised to the nanoparticle surface allows a signal to be obtained and thus an attribute by which the presence, or …
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Nanostructured Devices for Ultrasensitive and High Throughput Vibrational Spectroscopic Imaging
… format. Vibrational spectroscopic imaging (both Raman and infrared) is an attractive tool due to its potential to obtain rich chemical and structural information using relatively accessible instrumentation. Its applicability in devising such modality however is limited by current detection …
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Synthesis, characterization, and application of magnetic gold nanoclusters
… we describe two very different applications: (1) surface-modified chemical sensors based on surface-enhanced Raman scattering (SERS), for the detection of trace environmental pollutants such as tetrabromobisphenol A (TBBPA), and (2) magnetically guided “chisels” for the generation of nanosized …
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Design Rules for the Nucleation, Growth, and Encapsulation of Gold Nanoparticles with Applications to Cancer Imaging
<p>Surface-enhanced Raman scattering (SERS) nanoparticles are exciting candidates for high-precision cancer imaging due to their highly specific spectral signature (Raman “fingerprint”) and propensity for passive targeting of cancerous tissues. However, the signal intensity of currently available …
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Functional nanostructured plasmonic materials: fabrication, simulation, imaging and sensing applications
Surface plasmons, due to their extreme sensitivity to changes in refractive index occurring at a metal/dielectric interface and their ability to significantly enhance electromagnetic fields near a metal, offer exciting opportunities for real-time, fully label free forms of chemical/biological …
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Light Coupling to Plasmonic Nanocavities
… within a defined facet area. This enables strong Surface-Enhanced Raman Scattering (SERS) from the molecules at the facet. The energy deposited in the NP through laser irradiation was exploited to perform all-optical thermal measurements of SAMs in stable junctions. The deficiencies in our …
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Synthesis Of Alkylthiol-containing Fluorene Derivatives For Gold Nanoparticle Functionalization
… used to monitor the progress of the attachment. Surface Enhanced Raman Scattering (SERS) spectroscopy was used to probe the enhancement of Raman signal by the metallic nanoparticles.
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SERS-based nanoparticle biodetection using carbohydrate-lectin interactions
… a variety of carbohydrates to the nanoparticle surface. This resulted in the production of glyconanoparticles with unique surface functionality, for example, glucose or galactose. Additionally, functionalising the particles with Raman reporter molecules (RRMs) resulted in the measurement of …
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