Date of Award
Winter 2014
Publication Type
Doctoral Thesis
Degree Name
Ph.D.
Department
Chemistry and Biochemistry
Keywords
Pure sciences, Applied sciences, Raman spectroscopy, Silver nanoparticles, Shell-isolatednanoparticle-enhanced fluorescence, Gold nanoparticles, Plasmons
Supervisor
Aroca, Ricardo F.
Rights
info:eu-repo/semantics/openAccess
Creative Commons License
This work is licensed under a Creative Commons Attribution-NonCommercial-No Derivative Works 4.0 International License.
Abstract
This thesis contains five major contributions to the field of plasmon-enhanced spectroscopy. We start with the report of a unique SERS study of the amino acid hydroxyproline and a deuterated analogue. Later, we move on to the exploration of a major new research path known as shell-isolated nanoparticle-enhanced fluorescence (SHINEF), consisting in the application of silica-shelled noble metal nanoparticles to achieve surface-enhanced fluorescence. The proof of concept of this technique is explained in one chapter. The two following chapters are devoted to the exploration of the plasmonic properties of SHINEF: spectral profile modification showing the close relationship between the observed enhanced fluorescence and the nanoparticle scattering. The SHIN particles are employed to experimentally prove the relationship between the SEF and SERS enhancement factors, theoretically predicted before, but never verified experimentally until now. The thesis ends with an investigation, in aqueous solutions, of several different factors that play a role in the origin of SEF, showing greater enhancement for SHINEF after inducing nanoparticle aggregation.
Recommended Citation
Guerrero Hernandez, Ariel Rodrigo, "Plasmon-Enhanced Raman and Fluorescence Spectroscopy with Gold and Silver Nanoparticles" (2014). Electronic Theses and Dissertations. 5026.
https://scholar.uwindsor.ca/etd/5026