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Related Experiment Video

Updated: Feb 8, 2026

Reconfigurable Microfluidic Channel with Pin-discretized Sidewalls
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A Microfluidic Platform Containing Sidewall Microgrooves for Cell Positioning and Trapping.

Masoud Khabiry1,2, Nader Jalili1

  • 1Piezoactive Systems Laboratory, Department of Mechanical and Industrial Engineering, Northeastern University, Boston, USA.

Nanobiomedicine
|June 27, 2018
PubMed
Summary

This study introduces a microfluidic platform with sidewall microgrooves for precise cell capture and positioning. These microgrooves effectively control cell patterns, proving valuable for applications like high-throughput screening and biosensing.

Keywords:
Cell Positioning and TrappingMicrocantilever-based BiosensorsMicrofluidic

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Area of Science:

  • Biotechnology
  • Microfluidics
  • Cellular Engineering

Background:

  • Microfluidic channels are crucial for controlling cell positioning and enabling high-throughput screening.
  • Precise cell manipulation is vital for various biological applications, including drug screening and cell-based biosensing.

Purpose of the Study:

  • To propose and investigate a simple microfluidic platform for capturing small cell volumes using sidewall microgrooves.
  • To study cell docking patterns and positioning within microfluidic channels featuring sidewall microgrooves of varying widths.

Main Methods:

  • Numerical and experimental investigations were conducted on microfluidic channels with sidewall microgrooves of 50, 100, and 200 μm widths.
  • Particle modeling was employed to predict cell positioning within the microgrooves.
  • Quantification of cell positions and correlation with shear stress variations were performed.

Main Results:

  • Sidewall microgrooves significantly regulate cell positioning and patterning within microfluidic channels.
  • Cell capture capacity varied with microgroove width: 10-14 cells (200 μm), 2-5 cells (100 μm), and 1-2 cells (50 μm).
  • Particle modeling accurately predicted cell positioning, and shear stress was correlated with cell distribution.

Conclusions:

  • The developed microfluidic platform with sidewall microgrooves offers effective control over cell positioning and patterning.
  • This technology holds potential for applications in 2D/3D cell patterning, high-throughput screening, drug discovery, and cell-based biosensing.