Apparatus and methods for modulating flow rates in microfluidic devices are provided. The methods involve modulating downstream pressure in the device to change the flow rate of materials in an upstream region of the device. Such methods include electrokinetic injection or withdrawal of materials through...http://www.google.fr/patents/US6416642?utm_source=gb-gplus-shareBrevet US6416642 - Method and apparatus for continuous liquid flow in microscale channels using pressure injection, wicking, and electrokinetic injection
Method and apparatus for continuous liquid flow in microscale channels using ...
