A simple microfluidic dispenser for single-microparticle and cell samples.

Area of Science:

• Biotechnology
• Microfluidics
• Cell Biology

Background:

• Non-destructive single-cell isolation is crucial for biological research.
• Existing tools for single-cell isolation are often expensive or complex.
• There is a need for accessible and economical single-cell isolation methods.

Purpose of the Study:

• To present a novel, cost-effective single-particle sample delivery system.
• To address the limitations of current single-cell isolation technologies.
• To enable precise isolation and delivery of individual cells for research.

Main Methods:

• Fabrication of a single-particle sample delivery system using economical components.
• Implementation of unique flow and timing strategies for particle manipulation.
• Utilizing an optical trap for isolating individual microparticles and red blood cells.
• Dispensing isolated cells in 50 μl droplets from a microfluidic chip.

Main Results:

• Successful demonstration of a non-destructive single-cell isolation and delivery approach.
• Precise isolation of individual microparticles and red blood cells.
• Collection of dispensed cells into microscope slides or microtiter plates.
• Bridging force and length scale differences in particle transition.

Conclusions:

• The developed system offers an easily employed and inexpensive solution for single-cell isolation.
• This microfluidic approach facilitates precise sample delivery for biological research.
• The technology has potential applications in various laboratory settings requiring single-cell analysis.