ELECTROKINETIC DRIVEN MICRO-MIXING OF FLUIDS IN A CIRCULAR ELECTRODE PATTERN

Manipulation of fluids in a small volume is often a challenge in the field of Microfluidics. While many research groups have addressed this issue with robust methodologies, manipulation of fluids remains a scope of study due to the ever-changing technology (Processing Tools) and increase in the demand for "Lab-On-a-Chip" devices. This research peruses the flow pattern and fluid mixing behavior in a metallic circular electrode, charged with AC voltage. In this study, micromixing in a circular electrode pattern device is demonstrated with numerical and experimental values. Experiments were performed using two buffer solutions with conductivities 1.62 S/m and 0.0732 S/m. The efficiency of mixing was found to be three to five times faster than the normal diffusion process. It was found that the increase in the conductivity of fluid increases the efficiency of mixing in the proposed device.