Integration of Paper Based Electro-Osmotic Pumps to Continuous Microfluidic Channels

Proceedings

Celik, Ahmet Yasin¹  Kaya, Kerem²  Mutlu, Senol³ 

[1] Author to whom correspondence should be addressed.;Department of Electrical & Electronics Engineering, Bogazici University, 34342 Istanbul, Turkey;Presented at the Eurosensors 2018 Conference, Graz, Austria, 9–12 September 2018.

关键词: paper-based;    microfluidic;    integrated;    electro-osmotic pump;    liquid bridges;    continuous microfluidic channel;   

DOI  :  10.3390/proceedings2130870

学科分类：社会科学、人文和艺术（综合）

来源: mdpi

【 摘 要 】

This work reports for the first-time integration of continuous microfluidic channels to the paper-based electro-osmotic pumps (EOPs) with liquid bridges. In addition, 0.2 μm pore sized cellulose acetate (CA) membrane filter is used to eliminate pressure-driven flow instead of filter paper which is common in paper microfluidics and has an average pore size of 10 μm. A factor of 57 increase in hydraulic resistance is achieved with the new paper. Fabrication of the pumps and microfluidic channels using paper, wax, adhesive film and PMMA plates is explained. Volumetric flow rate of 19 nL/min is achieved in the microfluidic system with 61 V/cm electrical field magnitude applied to DI water. The capability of the integrated system is shown with precise liquid motion in a Y-shaped microfluidic channel integrated with two EOPs.

【 授权许可】

CC BY