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Digital microfluidic biochips are being utilized in many areas of biochemistry and biomedical sciences. Since cross-contamination between droplets of different biomolecules can lead to erroneous outcomes for bioassays, it is essential to avoid cross-contamination during droplet routing. We propose a wash-operation synchronization method to manipulate wash droplets to clean the residue that is left...
Recent advances in droplet-based digital microfluidics have enabled biochip devices for DNA sequencing, immunoassays, clinical chemistry, and protein crystallization. Since cross-contamination between droplets of different biomolecules can lead to erroneous outcomes for bioassays, the avoidance of cross-contamination during droplet routing is a key design challenge for biochips. We propose a droplet-routing...
Dependability is an important system attribute for microfluidic lab-on-chip devices. On-line testing offers a promising method for detecting defects, fluidic abnormalities, and bioassay malfunctions during chip operation. However, previous techniques for reading test outcomes and analyzing pulse sequences are cumbersome, sensitive to the calibration of capacitive sensors, and error-prone. We present...
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