Composite Elastomer-Enabled Rapid Photofabrication of Microfluidic Devices

Area of Science:

• Materials Science
• Chemical Engineering
• Biotechnology

Background:

• Microfluidic device fabrication relies heavily on material and fabrication advancements.
• Current methods like replica molding and hot embossing have limitations in scalability or laboratory prototyping.
• Photocurable resins offer vast material potential but face machining challenges.

Purpose of the Study:

• To introduce a novel composite elastomer approach for microfluidic device fabrication.
• To enable the use of a wider range of photocurable resins in microfluidics.
• To develop a simple, rapid, and scalable fabrication method.

Main Methods:

• Development of composite elastomers capable of covalent linkage with photocured thin films.
• Utilizing these composite elastomers to support photocured resins during fabrication.
• Implementing a rapid photofabrication process.

Main Results:

• Demonstrated successful fabrication of microfluidic devices using diverse photocurable resins.
• Achieved a simple and rapid fabrication process with high throughput (hundreds of replicas per day).
• Composite elastomers provide flexible support, overcoming machining challenges of photocurable resins.

Conclusions:

• The composite elastomer-enabled method significantly expands material choices for microfluidic devices.
• This approach is highly suitable for laboratory prototyping, offering ease of use and material flexibility.
• The method shows promise for bridging academic research and industrial production, with potential for volume manufacturing.