Figure 5

Algorithm and smartphone interface for real-time flow monitoring and failure detection. (a) Microscope images and capacitance values recorded from two channels during the flow of PBS with 1% BSA and 0.05% Tween 20 (the flow of the top channel was intentionally stopped by blocking its air vent). (b) Simplified sketch of the algorithm used to monitor chip insertion, sample pipetting, and various anomalies in the flow. (c) Snapshots from the smartphone app showing the flow conditions and warnings in real-time for a simulated data sent by the portable device. (d) Microscope images during the capillary filling of a chip having defects in the upper channel and snapshots from the smartphone app that shows the flow information in real-time and warns the user promptly when a failure occurs.