On-Chip Magnetic Particle-Based Immunoassays Using Multilaminar Flow for Clinical Diagnostics
1Department of Chemistry, The University of Hull, Cottingham Road, Hull, HU6 7RX, UK.
Methods in Molecular Biology (Clifton, N.J.)
|January 4, 2017
Summary
This study introduces a microfluidic platform for rapid magnetic particle immunoassays. The new method significantly reduces assay time for C-reactive protein (CRP) detection to under 60 seconds.
Area of Science:
- Biomedical Engineering
- Analytical Chemistry
- Biotechnology
Background:
- Magnetic particles offer advantages for immunoassays due to high surface-to-volume ratio and ease of manipulation.
- Traditional immunoassays involving magnetic particles require time-consuming, manual reaction and washing steps.
Purpose of the Study:
- To develop a rapid immunoassay methodology using magnetic particles in a continuous flow system.
- To demonstrate the efficacy of a microfluidic platform for accelerated immunoassay performance.
Main Methods:
- Utilized a microfluidic platform to deflect magnetic particles through multiple laminar flow streams.
- Integrated reagent and washing solutions within the continuous flow system.
- Focused on a C-reactive protein (CRP) sandwich immunoassay protocol.
Main Results:
- Achieved a complete sandwich immunoassay for CRP in less than 60 seconds.
- Demonstrated a continuous flow methodology for magnetic particle-based assays.
- Showcased the potential for automation and speed in immunoassays.
Conclusions:
- The developed microfluidic platform enables rapid immunoassays using magnetic particles.
- Continuous flow deflection offers a significant improvement over traditional, laborious immunoassay methods.
- This approach has potential for faster diagnostic applications, such as CRP detection.
