Microfluidic lab-on-a-chip technology. Several laboratory components are seen in this footage, which pans across a typical laboratory set-up.The green square at right at the start of the clip is a microfluidic device through which sample liquids are being pumped by the peristaltic water pumps (with blue rotating discs). The end of the clip shows a laptop and a screen showing a magnified view of the fluids passing through the channels on the sensor. Microfluidic microchips are a type of microelectromechanical system (MEMS). They are used in laboratory analysis, and are commonly called a 'lab on a chip'. Samples and analytical chemicals mix in the chambers and flow through the microchannels. The small size of these channels (typically less than 1 millimetre across) allows many properties to be measured, including fluid viscosity, pH, enzyme reaction kinetics, the molecular diffusion co-efficient, number of cells, and protein properties.