The present invention provides an apparatus and method for controlling the movement of a biopolymer translocating a nanopore. The invention provides a first electrode, a second electrode adjacent to the first electrode, a third electrode adjacent to the second electrode and a fourth electrode adjacent to the third electrode. The first electrode is in electrical connection with the third electrode to define a first set of electrodes and the second electrode is in electrical connection with the fourth electrode to define a second set of electrodes. A DC voltage and radio frequency voltage is applied to the first set of electrodes while an opposite DC voltage and phase shifted radio frequency voltage is applied to the second set of electrodes to produce an electric field between the first set of electrodes and the second set of electrodes. The electric field is used to control the movement of a biopolymer translocating a nanopore. A method for controlling the movement of a biopolymer is also disclosed.

 
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> Method of enhancing the stability of electroactive polymers and redox active materials

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