PCR systems use thermoelectrics to thermal cycle DNA samples to create millions of strands of DNA for analysis. Rapid thermal cycling and precision temperature control is crucial to speed up DNA amplification.
Thermoelectric coolers are typically used to achieve the rapid temperature changes. The advantages of thermoelectric coolers over other types of thermal cycling devices are precise temperature control, compactness, faster temperature ramp rates and efficiency.
Thermal cycling means a harsh environment for standard thermoelectric coolers due to the mechanical stresses that occur during the heating and cooling stage. Laird Thermal Systems develop custom thermoelectric coolers with high reliability which are suitable for applications such as PCR thermal cycling, which require extended mean time between failure (MTBF).
Contact a Laird Thermal Systems expert for your next product development to find an optimized thermal solution.