Microfluidics relates to design and study of devices which move or analyze the tiny amount of liquid, smaller than a droplet. Microfluidic devices have microchannels ranging from submicron to few millimetres. To compare, a human hair is about 100 microns thick. Microfluidics has been increasingly used in the biological sciences because precise and controlled experiments can be conducted at a lower cost and faster pace. Lab on a Chip devices use microfluidics for applications such as Point of Care testing of diseases, or Organ on a Chip studies.