Electrically charged molecules need to be transported in order to create a DNA sensor. The following measures are undertaken: base metals are introduced into a solution as a positive ion; negatively charged molecules are transported in an opposite direction and are enriched in the vicinity of the measuring...http://www.google.de/patents/US7591938?utm_source=gb-gplus-sharePatent US7591938 - Method and device for transporting or binding-specific separation of electrically charged molecules
