Manufacture of 3D Printed Microfluidic Channels and Their Characterization by Impedance Spectroscopy and Optical Microscopy Measurements

0557933 - ÚFCH JH 2024 RIV CZ eng C - Conference Paper (international conference)
Štěrba, O. - Vaněčková, Eva - Choińska-Mlynarczyk, Marta - Navrátil, Tomáš - Kolivoška, Viliam
Manufacture of 3D Printed Microfluidic Channels and Their Characterization by Impedance Spectroscopy and Optical Microscopy Measurements.
41. Moderní elektrochemické metody. Sborník přednášek. Ústí nad Labem: Best servis, 2022 - (Navrátil, T.; Fojta, M.; Schwarzová, K.), s. 195-199. ISBN 978-80-905221-9-0.
[Moderní elektrochemické metody /41./. Jetřichovice (CZ), 22.05.2022-26.05.2022]
R&D Projects: GA ČR(CZ) GA20-01589S
Institutional support: RVO:61388955
Keywords : Fused deposition modeling 3D printing * Lab-on-a-chip devices * Microfluidic channels * Impedance spectroscopy * Optical microscopy
OECD category: Electrochemistry (dry cells, batteries, fuel cells, corrosion metals, electrolysis)

Fused deposition modeling 3D printing employing high-resolution extrusion nozzles and specialized manufacturing protocols have recently attracted attention as an inexpensive tool to create microfluidic devices. In this work, we have applied such an approach to create measurement cells with integrated microchannels of systematically varied dimensions. The real width of channels was inspected by two techniques, namely (A) impedance spectroscopy employing an aqueous sensing electrolyte and (B) optical microscopic imaging of silicone imprints hardened in the interior of printed structures. Both techniques have demonstrated that fused deposition modeling 3D printing enables precise manufacturing of channels with truly microfluidic dimensions.
Permanent Link: http://hdl.handle.net/11104/0331823