Identification of microfluidic two-phase flow patterns in lab-on-chip devices

Issue title: Frontiers in Biomedical Engineering and Biotechnology – Proceedings of the 2nd International Conference on Biomedical Engineering and Biotechnology, 11–13 October 2013, Wuhan, China

Article type: Research Article

Authors: Yang, Zhaochu | Dong, Tao^; | Halvorsen, Einar

Affiliations: Department of Micro and Nano Systems Technology, Vestfold University College, Postboks 2243, 3103 Tonsberg, Norway

Note: [] Corresponding author. E-mail: [email protected]

Abstract: This work describes a capacitive sensor for identification of microfluidic two-phase flow in lab-on-chip devices. With interdigital electrodes and thin insulation layer utilized, this sensor is capable of being integrated with the microsystems easily. Transducing principle and design considerations are presented with respect to the microfluidic gas/liquid flow patterns. Numerical simulation results verify the operational principle. And the factors affecting the performance of the sensor are discussed. Besides, a feasible process flow for the fabrication is also proposed.

Keywords: microfluidic, flow patterns, two-phase flow, lab on a chip, interdigital electrode, microchannel

DOI: 10.3233/BME-130786

Journal: Bio-Medical Materials and Engineering, vol. 24, no. 1, pp. 77-83, 2014