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An on-demand bench-top fabrication process for fluidic chips based on cross-diffusion through photopolymerization
Takumi Kimoto1, Kou Suzuki1, Takashi Fukuda2
1Graduate School of Science and Engineering, Doshisha University, 1-3 Tatara-Miyakodani, Kyotanabe, Kyoto 610-0321, Japan.
Biomicrofluidics
|July 24, 2020
Summary
This study introduces a new method for fabricating fluidic chips using photopolymerization and molecular diffusion. This technique allows for rapid, on-demand production of custom microfluidic devices at the benchtop.
Area of Science:
- Microfluidics
- Materials Science
- Polymer Chemistry
Background:
- Traditional fluidic chip fabrication often requires specialized facilities and lengthy production times.
- Developing rapid and accessible methods for microfluidic device fabrication is crucial for advancing research and diagnostics.
Purpose of the Study:
- To present a novel, on-demand fabrication method for fluidic chips.
- To demonstrate the use of molecular cross-diffusion and photopolymerization for creating microchannel structures.
- To enable rapid prototyping of custom fluidic devices.
Main Methods:
- Fabrication involves photopolymerization within a channel pattern under ultraviolet (UV) irradiation.
- Uncured molecules in the photopolymer layer facilitate subsequent sealing.
- A top substrate is applied, followed by homogenous UV irradiation to form the sealed fluidic chip.
Main Results:
- The process successfully forms sealed fluidic chips with defined channel structures.
- Channel patterns can be rapidly designed digitally as binary images.
- Chips are produced on-demand at a benchtop, bypassing traditional manufacturing.
Conclusions:
- The proposed method offers a fast, flexible, and accessible approach to fluidic chip fabrication.
- This technique democratizes the production of microfluidic devices, enabling quicker research iterations.
- The on-demand, benchtop fabrication capability accelerates the development cycle for custom fluidic applications.
