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Self-sufficient, low-cost microfluidic pumps utilising reinforced balloons
Peter Thurgood1, Sergio Aguilera Suarez1, Sheng Chen1
1School of Engineering, RMIT University, Melbourne, Australia. peter.thurgood@rmit.edu.au Khashayar.khoshmanesh@rmit.edu.au.
Lab on a Chip
|July 30, 2019
Summary
Researchers reinforced latex balloons with elastane fibers, significantly increasing their inflation pressure for use in microfluidic devices. This innovation enables precise control of fluid dynamics and cell studies.
Area of Science:
- Biomedical Engineering
- Materials Science
- Fluid Dynamics
Background:
- Microfluidic devices require reliable and controllable fluid pumps.
- Traditional latex balloons have limited inflation pressure and expansion control.
- Developing affordable and scalable pumping solutions is crucial for microfluidics.
Purpose of the Study:
- To introduce a method for enhancing the inflation pressure of latex balloon pumps.
- To demonstrate the utility of reinforced balloons in microfluidic applications.
- To enable precise control over fluid flow and shear stress for biological studies.
Main Methods:
- Reinforcing latex balloons with elastane fibers to limit expansion.
- Measuring the increased operational inflation pressure.
- Conducting proof-of-concept experiments for hydrodynamic cell capture and solution exchange.
- Utilizing the pumps for studying endothelial cell mechanobiology.
Main Results:
- The reinforced balloon pumps achieved an operational inflation pressure of 25 kPa, a tenfold increase from 2.5 kPa.
- Demonstrated successful hydrodynamic capturing of human monocytes.
- Showcased rapid solution exchange capabilities through manual squeezing.
- Validated suitability for applying controlled shear stress to endothelial cells.
Conclusions:
- Reinforced latex balloons offer a simple, affordable, and scalable solution for microfluidic pumping.
- The enhanced pumps provide precise control over fluid forces for biological applications.
- This method is adaptable for various microfluidic systems and cell mechanobiology research.
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