Nanotube electrochemistry
AssigneeUniversity of Warwick
InventorsJulie Victoria Macpherson, Patrick Robert Unwin
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Abstract
The invention relates to electrodes for electrochemical analysis comprising: —an insulating surface; —carbon nanotubes situated on the insulating surface at a density of at least 0.1 μmCNT Um−2; and —an electrically conducting material in electrical contact with the carbon nanotubes; wherein the carbon nanotubes cover an area of no more than about 5.0% of the insulating surface. Methods of making such electrodes and assay devices or kits with such electrodes, are also provided.
Claims19
-42. (canceled)
An electrode for electrochemical analysis, comprising:
- an insulating surface;
- carbon nanotubes situated on the insulating surface at a density of at least 0.1 μmCNT μm−2;
- and
- an electrically conducting material in electrical contact with the carbon nanotubes;
- wherein the carbon nanotubes cover an area of no more than about 1.0% of the insulating surface.
A method of manufacturing an electrode according to claim 1, comprising:
- depositing a quantity of catalytic nanoparticles onto an insulating surface;
- exposing the insulating surface to heat, a source of hydrogen gas, and a source of a carbon-containing gas to grow the nanotubes;
- and
- depositing an electrically conducting material on the insulating surface so that it is in electrical contact with the carbon nanotubes;
- wherein no annealing step is carried out prior to the deposition of the catalytic nanoparticles.
An assay device or kit comprising the electrode of claim 1.
Dependencies are inferred from the claim text.