3D printed microfluidic Coulter counter for blood cell analysis

Area of Science:

• Biomedical Engineering
• Microfluidics
• Analytical Chemistry

Background:

• Coulter counters are essential for cell analysis but prone to clogging with reduced orifice sizes.
• Traditional methods for managing clogs are inconvenient and costly, hindering widespread application.

Purpose of the Study:

• To present a 3D microfluidic printing-based single-use kit for accurate Coulter cell count analysis.
• To address and overcome the clogging issue in microfluidic Coulter counters.
• To develop a disposable, hygienic, and cost-effective solution for cell analysis.

Main Methods:

• Utilizing 3D microfluidic printing to create a disposable analysis kit with an integrated 'gem hole'.
• Designing the kit to be independent of the main analysis instrument, enabling a separate detection module.
• Employing a solid water flow system to prevent clogging without traditional methods.

Main Results:

• The novel design effectively eliminates clogging issues associated with traditional Coulter counters.
• The disposable kit ensures hygiene and prevents cross-infection during biological sample analysis.
• The independent module design simplifies the analysis process and enhances convenience.

Conclusions:

• The 3D printed single-use kit provides a hygienic, clog-free, and accurate method for Coulter cell counting.
• This approach offers a significant advancement for point-of-care (POCT) detection and routine laboratory analysis.
• Mass production potential indicates a future where cost is no longer a barrier to advanced cell analysis.