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.
Results
Showing 1 to 9 of 9 for “"Gold nanoshells"”.
-
Gold Nanoshells: Synthesis and Applications to In Situ SERS
In situ surface-enhanced Raman spectroscopy (SERS) is a powerful technique for probing molecular adsorption and reaction at the solid-liquid interface due to its very high surface sensitivity, wide applicable frequency range, and relative insensitivity to water. However, a low SERS activity and …
-
Gold nanoshells for surface enhanced Raman spectroscopy and drug delivery
Gold nanoshells are tunable plasmonic nanostructures consisting of spherical silica cores wrapped with thin layer of Au. Based on the size of the Au layer with respect to the silica core, gold nanoshells can resonantly absorb or scatter light at any wavelength on the visible or infrared. On …
-
Engineering the Plasmon Resonance of Gold Nanoshells for Biological Applications
… investigated the effect of pH and the ratio of gold to silica colloids on the formation of nanoshell precursor seed particles thereby leading to the optimization of the process by which gold nanoshells are formed. With a focus on nanoshells for the thermal ablation of cancer cells, 104.5 nm core …
-
Applications of Ephb4 Receptor Specific Peptides In Targeted Cancer Imaging and Therapy
… receptor specific peptide conjugated hollow gold nanoshells (HAuNS) into tumors has great potential in cancer imaging and photothermal therapy. In this study, we developed an EphB4 specific peptide named TNYL-RAW and labeled with radioisotope <sup>64</sup>Cu and Cy5.5 dye. We also conjugate …
-
Nanoshells in vivo imaging using two-photon excitation microscopy
… optical characterization of near infrared (NIR) gold nanoshells for the use as luminescent contrast agents for applications in small animal blood vessel imaging. Two types of gold-silica nanoshells excitable by NIR lasers are investigated: Type 1 nanoshells can be excited with a sub-mum NW laser, …
-
Thermally-responsive interpenetrating polymer network nanoparticles as intelligent therapeutic systems
… technology in a variety of applications. Solid gold nanoparticles (diameter ~ 40-50 nm) as well as gold nanoshells (diameter ~ 200 nm) were also synthesized using standard citrate reduction and core-shell synthesis methods, respectively. These materials were shown to absorb light in the visible …
-
Spatially-resolved reflectance spectroscopy with variable fiber geometry
… the angled fiber geometry may be coupled with gold nanoshells to provide significantly enhanced scattering contrast when nanoshells are selectively conjugated with dysplastic epithelial tissue. An equal magnitude of scattering contrast can be induced with markedly less gold nanoshell dosage …
-
Poly(NIPAAm-co-AAm)-gold nanoshell composites for optically-triggered cancer therapeutic delivery
… (NIPAAm-co-AAm) hydrogel and gold-silica nanoshells. Thermally responsive hydrogels undergo a physical property transition at their lower critical solution temperature (LCST). When transitioning from below to above the LCST, the hydrogel material expels large amounts of water …
-
Sensing and Imaging Biomolecules with Plasmonic Nanoparticle Assemblies Coupled with Darkfield Microscopy
… a complex nanostructure comprising a core gold nanoparticle surrounded by multiple satellite gold nanoparticles for biosensing application. Chapter 2 introduces the fabrication and characterization of the core-satellite assemblies via a layer-by-layer process. Using ATP-aptamer as the …