Microfluidic Blood Separation: Key Technologies and Critical Figures of Merit

Area of Science:

• Biomedical Engineering
• Analytical Chemistry
• Point-of-Care Diagnostics

Background:

• Blood analysis is vital for diagnosing diseases using biomarkers like circulating tumor cells (CTCs).
• Microfluidic devices enable compact, portable blood component separation, ideal for point-of-care (POC) applications.
• Current microfluidic blood separation platforms require standardized metrics for reliable performance assessment and commercialization.

Purpose of the Study:

• To review microfluidic blood separation techniques for high-throughput applications.
• To identify critical design parameters and key performance metrics for microfluidic blood separation devices.
• To foster consensus on reporting standards to accelerate the commercialization of POC microfluidic blood analysis systems.

Main Methods:

• Overview of current microfluidic techniques for blood component separation.
• Analysis of critical parameters for designing effective microfluidic separation devices.
• Identification of essential figures of merit for evaluating separation performance.

Main Results:

• Microfluidic devices offer advantages in portability, small sample volume requirements, and integrated sample preparation.
• A need exists for standardized reporting of performance metrics (e.g., throughput, purity, recovery) in microfluidic blood separation.
• Established parameters and figures of merit will guide device development and facilitate clinical adoption.

Conclusions:

• Standardized reporting of performance metrics is essential for the advancement and commercialization of microfluidic blood separation technologies.
• Clear guidelines will accelerate the development of reliable POC devices for diverse applications, from clinical settings to low-resource environments.
• This review aims to establish a consensus on critical parameters and figures of merit to guide future research and development in microfluidic blood analysis.