Nano Science and Technology Institute
Nanotech 2014 Vol. 2
Nanotech 2014 Vol. 2
Nanotechnology 2014: MEMS, Fluidics, Bio Systems, Medical, Computational & Photonics
Chapter 2: Inkjets, Micro & Nano Fluidics

Droplet actuation on a digital microfluidic chip using a 5 volt battery

Authors:H. Rezaei Nejad
Affilation:University of British Columbia, CA
Pages:129 - 131
Keywords:low voltage, digital microfluidics, droplet, EWOD, actuation
Abstract:This paper presents a circuit using a 5-volt DC battery to actuate droplets on a DMF chip. The output of the circuit is a controllable high voltage, high frequency AC signal which can actuate a droplet on array of fabricated electrodes. With the use of this small driver circuit, different DMF operators (i.e., moving, dispensing, splitting, and merging) were successfully performed. As an example, Figure 2 shows manipulation and splitting of a DI water conducted on a DMF platform. Due to the fact that the output current of the CCFL transformer is very low, the chance of dielectric breakdown is significantly reduced in the system.
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