Carbon nanotube nanoelectrode arrays
First Claim
1. A nanoelectrode array comprising:
- a carbon nanotube material comprising an array of substantially linear carbon nanotubes each having a proximal end and a distal end, the proximal end of the carbon nanotubes are attached to a catalyst substrate material to form the array with a pre-determined site density, wherein the carbon nanotubes are aligned with respect to one another within the array;
an electrically insulating layer on the surface of the carbon nanotube material, whereby the distal end of the carbon nanotubes extend beyond the electrically insulating layer;
a second adhesive electrically insulating layer on the surface of the electrically insulating layer, whereby the distal end of the carbon nanotubes extend beyond the second adhesive electrically insulating layer; and
a metal wire attached to the catalyst substrate material.
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Accused Products
Abstract
The present invention relates to microelectode arrays (MEAs), and more particularly to carbon nanotube nanoelectrode arrays (CNT-NEAs) for chemical and biological sensing, and methods of use. A nanoelectrode array includes a carbon nanotube material comprising an array of substantially linear carbon nanotubes each having a proximal end and a distal end, the proximal end of the carbon nanotubes are attached to a catalyst substrate material so as to form the array with a pre-determined site density, wherein the carbon nanotubes are aligned with respect to one another within the array; an electrically insulating layer on the surface of the carbon nanotube material, whereby the distal end of the carbon nanotubes extend beyond the electrically insulating layer; a second adhesive electrically insulating layer on the surface of the electrically insulating layer, whereby the distal end of the carbon nanotubes extend beyond the second adhesive electrically insulating layer; and a metal wire attached to the catalyst substrate material.
33 Citations
20 Claims
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1. A nanoelectrode array comprising:
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a carbon nanotube material comprising an array of substantially linear carbon nanotubes each having a proximal end and a distal end, the proximal end of the carbon nanotubes are attached to a catalyst substrate material to form the array with a pre-determined site density, wherein the carbon nanotubes are aligned with respect to one another within the array; an electrically insulating layer on the surface of the carbon nanotube material, whereby the distal end of the carbon nanotubes extend beyond the electrically insulating layer; a second adhesive electrically insulating layer on the surface of the electrically insulating layer, whereby the distal end of the carbon nanotubes extend beyond the second adhesive electrically insulating layer; and a metal wire attached to the catalyst substrate material. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. A nanoelectrode array for the selective detection of glucose comprising:
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a carbon nanotube material comprising an array of substantially linear carbon nanotubes each having a proximal end and a distal end, the proximal end attached to a catalyst substrate material to form the array with a pre-determined site density, and a carboxylic acid group functionalized to the distal end of the carbon nanotubes, wherein the carbon nanotubes are aligned with respect to one another within the array; an electrically insulating layer on the surface of the carbon nanotube material, whereby the distal end of the carbon nanotubes extend beyond the electrically insulating layer; a second adhesive electrically insulating layer on the surface of the electrically insulating layer, whereby the distal end of the carbon nanotubes extend beyond the second adhesive electrically insulating layer; and a metal wire attached to the catalyst substrate material, wherein the carboxylic acid group attached to the distal end of the carbon nanotubes is coupled to a glucose oxidase enzyme for the selective detection of glucose. - View Dependent Claims (11, 12, 13, 14, 15, 16)
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17. A nanoelectrode array for detecting a metal ion in a solution comprising:
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an array of vertically aligned carbon nanotubes having a pre-determined site density, wherein each carbon nanotube in the array has a proximal end and a distal end and wherein the proximal end of each carbon nanotube is attached to a metallic coating on a non-metallic substrate; an electrically insulating layer on a surface of the array of vertically aligned carbon nanotubes, whereby the electrically insulating layer insulates the metallic coating on the non-metallic substrate; a second adhesive electrically insulating layer surrounding the electrically insulating layer, whereby the second adhesive electrically insulating layer insulates the metallic coating on the non-metallic substrate and supports the array of vertically aligned carbon nanotubes; and
an electrical connection attached to the substrate,wherein the distal end of each of the carbon nanotubes is exposed to electrochemically sense the metal ion in the solution. - View Dependent Claims (18)
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19. A nanoelectrode array for generating an amperometric response to at least one drug in a solution comprising:
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an array of vertically aligned carbon nanotubes having a pre-determined site density, wherein each carbon nanotube in the array has a proximal end and a distal functionalized end and wherein the proximal end of each carbon nanotube engages to a metallic coating on a non-metallic substrate, and wherein the distal functionalized end of each carbon nanotube is coupled to a glucose oxidase; an electrically insulating layer on a surface of the array of vertically aligned carbon nanotubes, whereby the electrically insulating layer insulates the metallic coating on the non-metallic substrate; a second adhesive electrically insulating layer surrounding the electrically insulating layer, whereby the second adhesive electrically insulating layer insulates the metallic coating on the non-metallic substrate and supports the array of vertically aligned carbon nanotubes; and an electrical connection attached to the substrate, wherein the glucose oxidase is capable of interacting with the at least one drug in the solution to generate an amperometric response. - View Dependent Claims (20)
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Specification