About this Abstract |
Meeting |
2023 Annual International Solid Freeform Fabrication Symposium (SFF Symp 2023)
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Symposium
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2023 Annual International Solid Freeform Fabrication Symposium (SFF Symp 2023)
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Presentation Title |
Assembly-free Hybrid Printing of Microfluidic Devices for Biosensing |
Author(s) |
Yipu Du, Julius Reitemeier, Qiang Jiang, Yuxuan Liao, Paul W. Bohn, Yanliang Zhang |
On-Site Speaker (Planned) |
Yipu Du |
Abstract Scope |
The advent of 3D printing has facilitated the creation of microfluidic devices that are accessible and cost-effective. However, producing complex microfluidic devices with integrated structural and functional electronic components remains a challenge, often requiring complicated post-fabrication assembly steps. Here, we introduce a hybrid printing method that streamlines the production of multicomponent microfluidic devices with embedded channels and electrodes at microscale resolution without post-fabrication assembly. Using this approach, we successfully fabricated microfluidic sensors comprising microscale interdigitated electrode arrays for the amperometric sensing of lactate in sweat. The amperometric sensors demonstrated a sensitive response with a limit of detection of 442 nM and a linear dynamic range of 1 - 10 mM, which are performance characteristics relevant to physiological levels of lactate in sweat. The proposed hybrid printing method is straightforward, versatile, and cost-effective, making it suitable for a wide range of point-of-use monitoring and sensing applications.
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Proceedings Inclusion? |
Definite: Post-meeting proceedings |