In-Stat's Bourne notes that sales of lab-on-a-chip and micromachined units ran about $84 million in 2003 and will grow to $264 million by 2007.Labs-on-a-chipWhile commercial MEMS is overwhelmingly silicon-based, the same is not true for BioMEMS. Caliper Technologies Corp. (Hopkinton, Mass.), for example, constructs its microfluidic LabChip devices, used for drug discover and other applications, out