Publication Date

2016

Document Type

Dissertation/Thesis

First Advisor

Korampally, Venumadhav

Degree Name

M.S. (Master of Science)

Legacy Department

Department of Electrical Engineering

LCSH

Fluorescence; Nanoparticles; Silver

Abstract

In this project, we studied the influence of silver nanoparticles (AgNP) on the fluorescence properties over glass substrates and on Nano pours oxide film substrates. Enhanced fluorescence intensities were observed due to presence of AgNP in near field to a fluorophore creating hot spots thereby proving the concepts of Metal Enhanced Fluorescence and Surface Plasmon Resonance (SPR). A Bragg reflector pattern is created by varying the refractive index of surface resulting in layered structure causing the light getting trapped in between the layers which exhibited the properties of SPR and Evanescent fields. The mean intensity values were higher for the AgNP introduced glass samples compared to the controls, which provided an evidence of Fluorescence Enhancement. This property may be useful for designing new analytical tools that can be used for single molecule detection in the fields of bio sensing and bio imaging.

Comments

Advisors: Venumadhav Korampally; Haji-Sheikh Michael.||Committee members: Martin Kocanda; Donald S. Zinger.||Includes bibliographical references.||Includes illustrations.

Extent

v, 40 pages

Language

eng

Publisher

Northern Illinois University

Rights Statement

In Copyright

Rights Statement 2

NIU theses are protected by copyright. They may be viewed from Huskie Commons for any purpose, but reproduction or distribution in any format is prohibited without the written permission of the authors.

Media Type

Text

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