Blu-ray Technology-Based Quantitative Assays for Cardiac Markers: From Disc Activation to Multiplex Detection
Samuel Weng1, Xiaochun Li2, Michelle Niu3
1Department of Chemistry, Simon Fraser University , Burnaby, British Columbia V5A 1S6, Canada.
Analytical Chemistry
|June 9, 2016
Summary
A novel Blu-ray disc assay platform enables rapid, low-cost point-of-care diagnosis for acute myocardial infarction (AMI). This technology accurately quantifies key cardiac biomarkers, offering a user-friendly tool for on-site medical analysis.
Area of Science:
- Biomedical Engineering
- Analytical Chemistry
- Point-of-Care Diagnostics
Background:
- Acute myocardial infarction (AMI) is a major global health concern, necessitating rapid and reliable diagnostic methods.
- Current point-of-care (POC) diagnostic tools for AMI often lack the sensitivity or multiplexing capabilities required for comprehensive assessment.
Purpose of the Study:
- To develop a novel, low-cost, and user-friendly Blu-ray disc-based assay for multiplex detection of key cardiac biomarkers for AMI diagnosis.
- To adapt existing Blu-ray technology for quantitative analysis of myoglobin, troponin I, and C-reactive protein.
Main Methods:
- Utilized off-the-shelf Blu-ray discs (BDs) as substrates for immunoassays and DNA aptamer/antibody hybrid assays.
- Employed an unmodified optical Blu-ray drive for digital readout of assay results.
- Quantified three cardiac marker proteins within their physiological ranges of interest.
Main Results:
- Achieved detection limits comparable to conventional enzyme-linked immunosorbent assay (ELISA) kits.
- Validated the Blu-ray assay platform using real-world patient samples.
- Demonstrated a strong linear correlation between Blu-ray assay data and ELISA results.
Conclusions:
- The Blu-ray assay-on-a-BD technique provides a cost-effective and accessible quantitative tool for on-site chemical analysis.
- This platform offers a promising solution for rapid point-of-care medical diagnosis of acute myocardial infarction.
- No hardware or software modifications are required, facilitating widespread adoption.
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