Defect aware droplet routing technique in digital microfluidic biochip

Significant researches are going on droplet routing of digital microfluidic biochip (DMFB). Detection of failure and performing defect free routing is a new paradigm. This paper proposes a heuristic approach of droplet routing by evading the defective electrode regions. The proposed work tries to minimize multiple usage of same resource, thus by reducing the probability of defects, or routing failure due to residual traces of several droplets. All the droplets are routed in concurrent fashion, and repeated utilization of same electrode is avoided by assigning a variable to the electrodes, and updating the value in each iteration. Experimental studies show some notable results compared to some existing literature. It is also noticed that percentage degradation in electrode usage and latest arrival time due to defect aware routing is quite less and under a tolerable limit considering the importance of defect bypassing approach.