Date of Award
1-1-2011
Document Type
Masters Thesis
Degree Name
M.S.
Organizational Unit
Daniel Felix Ritchie School of Engineering and Computer Science
First Advisor
Siavash Pourkamali Anaraki, Ph.D.
Second Advisor
Byron W. Purse, Ph.D.
Third Advisor
Corinne Lengsfeld
Keywords
Label-free biochemical analysis, Medical diagnostics, Microelectromechanical systems, MEMS, Biosensors, Protein microarray technology, Surface modification, Thermally actuated, Resonators
Abstract
Highly sensitive biosensors capable of detecting and characterizing smallest quantities of cellular and molecular targets are needed in pharmaceutical and medical diagnostics industries. In this work, the importance of biological target recognition specifically proteins through microarray technologies has been discussed and the most successful tools and techniques have been studied. Moreover, a thermally actuated Micro Electro-Mechanical Systems (MEMS) resonator has been demonstrated and fabricated in this work as an accurate, reliable and low cost biotechnology tool. As a proof of concept, amine to epoxide coupling of octadecylamine to functionalized silicon dioxide surface have been shown through resonator frequency monitoring. The frequency deviation of the sensors implied a meaningful surface coverage after analyte immobilization. Furthermore, X-ray Photoelectron Spectroscopy (XPS) analysis of the devices at different stages of the surface modification supported that the frequency deviations are due to epoxide and octadecylamine attachments. In addition, two surface passivation techniques against non-specific adsorption of avidin have been investigated on silicon surfaces
Publication Statement
Copyright is held by the author. User is responsible for all copyright compliance.
Rights Holder
Babak Tousifar
Provenance
Received from ProQuest
File Format
application/pdf
Language
en
File Size
87 p.
Recommended Citation
Tousifar, Babak, "Label-Free Biochemical Recognition Using MEMS Resonators for Microarray Technology" (2011). Electronic Theses and Dissertations. 655.
https://digitalcommons.du.edu/etd/655
Copyright date
2011
Discipline
Biomedical engineering, Nanotechnology, Molecular biology