Electrokinetic Phenomena in Pencil Lead-Based Microfluidics
AbstractFabrication of microchannels and associated electrodes to generate electrokinetic phenomena often involves costly materials and considerable effort. In this study, we used graphite pencil-leads as low cost, disposable 3D electrodes to investigate various electrokinetic phenomena in straight cylindrical microchannels, which were themselves fabricated by using a graphite rod as the microchannel mold. Individual pencil-leads were employed as the micro-electrodes arranged along the side walls of the microchannel. Efficient electrokinetic phenomena provided by the 3D electrodes, including alternating current electroosmosis (ACEO), induced-charge electroosmosis (ICEO), and dielectrophoresis (DEP), were demonstrated by the introduced pencil-lead based microfluidic devices. The electrokinetic phenomena were characterized by micro-particle image velocimetry (micro-PIV) measurements and microscopy imaging. Highly efficient electrokinetic phenomena using 3D pencil-lead electrodes showed the affordability and ease of this technique to fabricate microfluidic devices embedded with electrodes for electrokinetic fluid and particle manipulations. View Full-Text
- Supplementary File 1:
Supplementary (ZIP, 33307 KB)
Share & Cite This Article
Bashirzadeh, Y.; Maruthamuthu, V.; Qian, S. Electrokinetic Phenomena in Pencil Lead-Based Microfluidics. Micromachines 2016, 7, 235.
Bashirzadeh Y, Maruthamuthu V, Qian S. Electrokinetic Phenomena in Pencil Lead-Based Microfluidics. Micromachines. 2016; 7(12):235.Chicago/Turabian Style
Bashirzadeh, Yashar; Maruthamuthu, Venkat; Qian, Shizhi. 2016. "Electrokinetic Phenomena in Pencil Lead-Based Microfluidics." Micromachines 7, no. 12: 235.
Note that from the first issue of 2016, MDPI journals use article numbers instead of page numbers. See further details here.