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Related Experiment Video

Updated: Jun 30, 2026

A Microfluidic-based Hydrodynamic Trap for Single Particles
10:13

A Microfluidic-based Hydrodynamic Trap for Single Particles

Published on: January 21, 2011

An active bubble trap and debubbler for microfluidic systems.

Alison M Skelley1, Joel Voldman

  • 1Research Laboratory of Electronics, Massachusetts Institute of Technology, Cambridge, MA 02139, USA.

Lab on a Chip
|September 25, 2008
PubMed
Summary
This summary is machine-generated.

This study introduces a novel microfluidic bubble trap and debubbler. The device effectively removes bubbles from microfluidic systems without interrupting continuous flow.

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A Microfluidic System with Surface Patterning for Investigating Cavitation Bubble(s)–Cell Interaction and the Resultant Bioeffects at the Single-cell Level

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Area of Science:

  • Microfluidics
  • Biotechnology
  • Chemical Engineering

Background:

  • Bubble formation is a common issue in microfluidic devices, disrupting experiments and reducing accuracy.
  • Existing debubbling methods can be complex, inefficient, or interrupt continuous flow.

Purpose of the Study:

  • To develop and demonstrate a novel, fully integrated microfluidic bubble trap and debubbler.
  • To maintain normal device operation during bubble removal.

Main Methods:

  • A 2-layer microfluidic device utilizing a polydimethylsiloxane (PDMS) valve design.
  • A featured membrane integrated into the device to halt bubble progression.
  • A pneumatic chamber to evacuate and remove trapped bubbles through a gas-permeable PDMS membrane.

Main Results:

  • The device successfully traps and removes bubbles up to 25 microL.
  • Bubble removal is achieved in under 3 hours.
  • Continuous flow at atmospheric pressure is maintained throughout the process.
  • A range of trap sizes (2-10 mm diameter) were demonstrated.

Conclusions:

  • The presented microfluidic bubble trap and debubbler offers an efficient and integrated solution for bubble management.
  • This technology enables uninterrupted operation of microfluidic systems, enhancing experimental reliability.