Integrated solid-state rapid thermo-cycling system

A portable lab system, comprising:

• a thermal cycling device including:
• a first well and a second well to receive samples to be thermally cycled,
• a thermoelectric cooling (TEC) element coupled to the first well and the second well,
• a substrate comprising a thermally conductive ground configured to allow the first well and the second well to exchange heat with the substrate and to operate independently from one another, and
• a controller coupled to the TEC to control operation of the TEC element;
• and
• an electronic interface including:
• a power interface to supply power to the TEC element and the controller of the thermal cycling device to allow the TEC element to transfer energy from the first well to the second well when current flows through the TEC element in a first direction, and from the second well to the first well when current flows through the TEC element in a second direction, and
• a data interface to collect data from the controller.