Fluid introduction is facilitated through the use of a port which extends entirely through a microfluidic substrate. Capillary forces can be used to retain the fluid within the port, and a series of samples or other fluids may be introduced through a single port by sequentially blowing the fluid out...http://www.google.fr/patents/US7364704?utm_source=gb-gplus-shareBrevet US7364704 - Microfabricated structures for facilitating fluid introduction into microfluidic devices
Microfabricated structures for facilitating fluid introduction into ...
