Abstract
Digital microfluidic biochip is often deployed for multiplexing several bioassays under optimized space and time constraints. Different parametric optimizations lead to performance enhancement and reusability of a biochip. In this paper, we propose an optimization algorithm to minimize three parameters simultaneously, named (i) Electrode usage, (ii) Latest arrival time, and (iii) Actuation pin assignment. A composite objective function has been designed and deployed at different instances with adjustable probabilistic weight factors (λ), to study the characteristic of routing schedules. Chosen parameters or objectives are minimized, leveraging the choice of weight factor at various runs, and dependency between the parameters are also studied. Shortest path based routing approach is adopted for optimal electrode usage and minimized routing completion time, and a graph coloring based on a dependency graph construction is navigated for optimal pin assignment. Experimental study of the proposed technique shows better result over some standard algorithms.
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