Research Projects
Clinic-Compatible Microfluidic for Carbapenemase Detection
My research focuses on developing machine learning-powered microfluidic diagnostics to rapidly detect carbapenemase-producing organisms (CPOs). By integrating colorimetric detection with ML algorithms, we achieve high-accuracy classification of antibiotic-resistant bacteria in minutes rather than days. Using recursive cross-validation and stratified k-fold methods, our optimized k-nearest neighbors (KNN) model reaches 100% accuracy for certain carbapenemase classes within just 5 minutes.
We are currently implementing deep learning for microfluidic image analysis, employing convolutional neural networks (CNNs) with transfer learning to automate classification from smartphone-captured images. This work is paving the way for faster, more accessible clinical diagnostics to combat antibiotic resistance in healthcare settings.
Related Presentations
"Clinic-Compatible Microfluidic Device for Rapid Detection of Carbapenemase-Producing Organisms." Bionanotechnology and BioMEMS; December 2024; Hong Kong, China. Oral Presentation
"Clinic-Compatible Colorimetric Microfluidic Device for Detection of Carbapenemase-Producing Organisms." Micro-Total Analysis Systems Conference; October 2024; Montreal, Canada. Poster Presentation
"Rapid, Low-cost Carbapenemase Detection Using a Self-coalescing Sticker Microfluidic for Enhanced Management of Carbapenemase-producing Organisms in Healthcare Settings." Solid-State Sensors, Actuators, and Microsystems Workshop; June 2024; Hilton Head Island, SC. Poster Presentation and Extended Abstract
"Rapid Carbapenemase Detection and Classification Using Machine Learning for Enhanced Management of Carbapenemase-Producing Organisms in Healthcare Settings." Biomedical Engineering Society Annual Conference; October 2023; Seattle, WA. Poster Presentation
Related Publications
Sample Recovery Paradigm for Dengue Detection
This research focuses on developing a novel clinical paradigm that preserves patient samples for comprehensive testing without sample depletion. The microfluidic-based platform allows for point-of-care antigen testing while maintaining sample integrity for additional downstream diagnostics. Initially targeting dengue virus detection using NS1 antigen, this approach has significant implications for resource-limited settings where maximizing diagnostic information from limited sample volumes is crucial. The technology enables healthcare providers to conduct multiple tests from a single patient sample, improving diagnostic capabilities without requiring additional specimen collection.
Related Presentations
"Applying a Sample Recovery Paradigm to Dengue NS1 Detection." IEEE Engineering in Medicine & Biology Society Micro and Nanotechnology in Medicine Conference; December 2022; Kapolei, HI. Poster Presentation
"Novel Clinical Paradigm of Non-Destructive Sample Testing Applied to Dengue NS1 Detection." Biomedical Engineering Society Annual Conference; October 2022; San Antonio, TX. Poster Presentation
Related Publications
F. tularensis Detection Using Magnetic Particles
During my undergraduate research, I worked on enhancing the detection sensitivity of Francisella tularensis, the causative agent of tularemia. This project involved pre-concentrating F. tularensis lipopolysaccharide (LPS) using Invitrogen Dynabead M-270 Epoxy magnetic particles before analysis with lateral flow immunoassay (LFI). This approach aimed to improve diagnostic capabilities by increasing sensitivity with larger sample volumes. The significance of this work lies in developing an effective, affordable point-of-care diagnostic tool for tularemia, which is particularly valuable in outbreak scenarios or resource-limited settings.
Related Presentations
"Pre-concentration of Francisella tularensis lipopolysaccharide by magnetic particles followed by lateral flow immunoassay for diagnosis of tularemia." McNair Research Symposium at University of Nevada, Reno; August 2019; Reno, NV. Oral Presentation
"Pre-concentration of Francisella tularensis lipopolysaccharide by magnetic particles followed by lateral flow immunoassay for diagnosis of tularemia." National McNair Conference at University of California, Los Angeles; July 2019; Los Angeles, CA. Oral Presentation