Date of Award
Winter 3-22-2025
Document Type
Masters Thesis
Degree Name
M.S. in Bioengineering
Organizational Unit
Daniel Felix Ritchie School of Engineering and Computer Science, Mechanical and Materials Engineering
First Advisor
Daniel Paredes
Second Advisor
Casey Myers
Third Advisor
Goncalo Martins
Fourth Advisor
Mohammad Matin
Copyright Statement / License for Reuse
All Rights Reserved.
Keywords
Diagnostics, Electrophoresis, Fluorescence, Polyamines
Abstract
Capillary zone electrophoresis (CZE) is a powerful analytical technique widely used for biomolecular separation due to its high resolution, efficiency, and sensitivity. This report presents the development and validation of a novel CZE system designed to improve modularity, reproducibility, and operational efficiency. The system integrates a laser-induced fluorescence (LIF) detection method with a 488 nm laser, enhanced fluid control through a negative pressure system, and a user-friendly GUI for automated operation and data acquisition. Performance verification included pressure stability tests, fluorescence accuracy assessments, and electrophoretic reproducibility studies. Comparative analysis with a previous CZE iteration confirmed improved baseline stability, peak resolution, and modular integration, while maintaining comparable sensitivity. A vacuum pump vibration dampener was also developed to minimize interference. The new CZE system addresses key limitations of earlier models, enhancing usability and adaptability for biomedical research applications, particularly in neurodegenerative disease diagnostics and biomarker discovery.
Copyright Date
3-2025
Publication Statement
Copyright is held by the author. User is responsible for all copyright compliance.
Rights Holder
Aaron I. Mena
Provenance
Received from author
File Format
application/pdf
Language
English (eng)
Extent
197 pgs
File Size
6.7 MB
Recommended Citation
Mena, Aaron I., "Development, Optimization, and Validation of a High-Sensitivity Capillary Zone Electrophoresis System for Bioanalytical Applications" (2025). Electronic Theses and Dissertations. 2532.
https://digitalcommons.du.edu/etd/2532
Included in
Analytical Chemistry Commons, Biochemistry Commons, Biomedical Devices and Instrumentation Commons