Figure 3.

Two-plate air-matrix DMF platform. (a) Air-filled DMF platform, featuring a droplet refill system. The primary regions of the device are highlighted, such as actuation electrodes and reagent reservoirs, heating areas (temperature control relies on thermoelectric modules and resistive temperature detectors placed under the printed circuit boards (PCB) substrate) and platform-refill system connections. (b) Electrophoretic analysis of on-chip versus off-chip PCR products for M13mp18 bacteriophage DNA, in comparison with a DNA ladder. Adapted from original in reference [22].