$PSID through its wholly owned Microfluidic Systems ("MFS") subsidiary, develops biological detection and diagnostics systems, including its M-BAND and Firefly Dx technologies. MFS began developing complex microfluidic systems to perform sample processing and purification for the Defense Advanced Projects Agency (DARPA). It then developed a similar system, including a thermal cycler for polymerase chain reaction (PCR) analysis for the US Army's Edgewood Chemical and Biological Command (ECBC). PositiveID's microfluidic technology replaces robotics and manual processes used in existing systems with integrated microfluidics in a closed, automated system, which reduces cost, increases reliability and enhances the effectiveness of sample processing.