| 摘要 |
Transporting electrically charged molecules (A) in an aqueous solution, especially for operating a DNA sensor with a redox-cycling process between two measuring electrodes, is new. Transporting electrically charged molecules (A) in an aqueous solution, especially for operating a DNA sensor with a redox-cycling process between two measuring electrodes (ME) comprises (a) arranging, near ME, a metallic material (M) that is stable in aqueous solution and less resistant to oxidation than ME, and functions as a potential-stressable electrode; (b) applying a positive potential so that M is solubilized as positive ions; and (c) negatively charged molecules (A'), the target molecules, are transported in the opposite direction so that they concentrated at ME. Independent claims are also included for: (1) similar method for binding-specific separation of (A) in aqueous solution where the solution contains metal ions, a negative potential is applied to ME so that the metal ions are deposited (as metal) and (A') that are near ME and have sufficiently low binding energy are transported away from ME; and (2) device for performing the new methods. |
