pp. 569-574
S&M2476 Research Paper https://doi.org/10.18494/SAM.2021.3156 Published: February 8, 2021 Surface Treatment of Polydimethylsiloxane and Glass Using Solid-source H2O Plasma for Fabrication of Microfluidic Devices [PDF] Mie Tohnishi and Akihiro Matsutani (Received November 2, 2020; Accepted December 11, 2020) Keywords: heterogeneous material bonding, plasma treatment, H2O plasma, PDMS, microfluidic devices
We demonstrate a method of bonding between polydimethylsiloxane (PDMS) and crown glass surfaces using solid-source H2O plasma for the fabrication of microfluidic devices. We used a plasma treatment system with H2O vapor supplied from solid H2O (ice) in a beaker placed in a process chamber. The bonding between PDMS and crown glass surfaces was achieved at a contact angle lower than 50° one hour after plasma treatment. In addition, we confirmed that the materials were completely bonded with a bonding force of at least 9 N/cm². We also observed the low-speed laminar flow of two layers from the confluence point to the entrance of the tube of the outlet in a microchannel device fabricated using the solid-source H2O plasma treatment.
Corresponding author: Mie TohnishiThis work is licensed under a Creative Commons Attribution 4.0 International License. Cite this article Mie Tohnishi and Akihiro Matsutani, Surface Treatment of Polydimethylsiloxane and Glass Using Solid-source H2O Plasma for Fabrication of Microfluidic Devices, Sens. Mater., Vol. 33, No. 2, 2021, p. 569-574. |