期刊
ACS APPLIED MATERIALS & INTERFACES
卷 13, 期 31, 页码 37589-37597出版社
AMER CHEMICAL SOC
DOI: 10.1021/acsami.1c06143
关键词
microfluidic; prototyping; photocurable material; acrylate; composite elastomer; droplet
资金
- Natural Science Foundation of Zhejiang Province [LY19B050006, LY17B050008]
- National Natural Science Foundation of China [21904118, 21275129]
- State Key Laboratory of Industrial Control Technology [ICT1914]
- Zhejiang Province Key RD Program [2021C03036]
This paper introduces a novel concept of composite elastomers to provide flexible support for photocured thin films, allowing most photocurable resins to be used in microfluidic device fabrication. The rapid and simple fabrication process is expected to bridge the gap between academic research and industrial practice, greatly enriching material choices for diverse applications.
Microfluidics, as an emerging technology, is highly dependent on the evolution of device materials and fabrication techniques. While replica molding of polydimethylsiloxane and hot embossing/injection molding of thermoplastics are most popular, they are either hard to scale up or inappropriate for laboratory-scale prototyping. Recently, photocurable resins, as a huge class of materials, have attracted extensive interest. However, very few of them can now be used in device fabrication due to the challenge in machining these materials. In response, we herein propose a novel concept of composite elastomers, which can covalently link with and consequently offer a flexible support to photocured thin films. This effect would allow most photocurable resins to be used in microfluidic device fabrication, greatly enriching the material choices for diverse applications. Moreover, the whole fabrication process becomes very simple and rapid, with an impressive throughput of at least hundreds of replicas per day. With these features, it is reasonably expected that the composite elastomer-enabled rapid photofabrication method will be very competent for laboratory prototyping, providing not only the ease of fabrication but also a possibility to select the materials specifically for ultimate applications and promising potential for volume production without the redevelopment process. These may offer a good opportunity to narrow the current gap between academic research and industrial practice.
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