Diamond electrode nanogap transducers

摘要

Embodiments of the invention provide transducers capable of transducing redox active chemical signals into electrical signals. Transducers comprise two electrodes separated by a nanogap. At least one electrode is comprised of conducting diamond. Methods of fabricating nanogap transducers and arrays of nanogap transducers are provided. Arrays of individually addressable nanogap transducers can be disposed on integrated circuit chips and operably coupled to the integrated circuit chip.

主权项

1. A device comprising, a substrate having a surface, and a transducer disposed on the substrate surface, wherein the transducer comprises:
a first electrode and a second electrode, wherein the first or the second electrode is comprised of conducting diamond, wherein the first and the second electrodes are each coupled to conducting lines through which voltage can be applied to the first and second electrodes independently and a current measured from each of the first and second electrodes independently, and wherein the first electrode has a face and the second electrode has a face and the face of the first electrode is separated from the face of the second electrode by a distance that is between 10 and 200 nm, a cavity capable of containing a fluid between the face of the first electrode and the face of the second electrode, and an access hole through the second electrode that is capable of allowing a fluid to enter and leave the cavity, wherein the substrate is an integrated circuit chip.