Related Experiment Video
Updated: Nov 9, 2025
Use of Dual Optical Tweezers and Microfluidics for Single-Molecule Studies
Published on: November 18, 2022
Coupling fluid flow to hydrogel fluidic devices with reversible "pop-it" connections
Reha Abbasi1, Thomas B LeFevre1, Aaron D Benjamin2
1Center for Biofilm Engineering, Montana State University, 214 Roberts Hall, Bozeman, MT 59717, USA. james.wilking@montana.edu and Chemical and Biological Engineering Department, Montana State University, 214 Roberts Hall, Bozeman, MT 59717, USA.
This study introduces a novel 3D-printed connector for hydrogel fluidic devices, significantly improving pressurized liquid flow. The new hydrogel connectors prevent leakage and withstand higher pressures, enabling advanced tissue engineering applications.
Area of Science:
- Biomaterials Science
- Fluid Dynamics
- Tissue Engineering
Background:
- Hydrogels are crucial for fabricating fluidic devices in biological engineering.
- Current methods for coupling pressurized liquid to hydrogels often result in leakage and device failure.
- Limited options exist for reliable fluidic connections in hydrogel-based systems.
Purpose of the Study:
- To develop a simple, robust coupling method for pressurized liquid in hydrogel fluidic devices.
- To enhance the performance and reliability of hydrogel-based fluidic systems.
- To enable the construction of complex, modular hydrogel systems.
Main Methods:
- Designing and fabricating 3D-printed bulb-shaped connectors and sockets for microfluidic tubing.
- Systematically varying connector and socket dimensions to optimize the head-socket ratio.
- Testing connection integrity under various liquid pressures and demonstrating modular hydrogel assembly.
- Utilizing the connectors for long-term nutrient flow in a bacterial hydrogel device.
Main Results:
- An optimal head-socket ratio was identified, maximizing resistance to leakage and expulsion.
- The novel connectors withstand pressures of several kilopascals, significantly exceeding traditional methods.
- The approach allows for the creation of reconfigurable hydrogel systems using modular components.
- Successful long-term nutrient delivery was achieved in a bacterial hydrogel device.
Conclusions:
- The developed 3D-printed coupling approach offers a simple and effective solution for hydrogel fluidics.
- This innovation enhances the reliability and applicability of hydrogel devices in biological and tissue engineering.
- The modularity and robustness of the connectors pave the way for advanced hydrogel-based systems and applications.
