Devices and methods are disclosed for moving charged molecules through a medium by the application of a plurality of electrical fields of sufficient strength and applied for sufficient amounts of time so as to move the charged molecules through the medium. The devices although preferably small in size,...http://www.google.de/patents/US5126022?utm_source=gb-gplus-sharePatent US5126022 - Method and device for moving molecules by the application of a plurality of electrical fields
