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US 2013/0092547 A1Published application
Molecular imprinted nanosensors
AssigneePolestar Technologies, Inc.
InventorsXiulan Li, Ranganathan Shashidhar, Yufeng Ma
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Abstract
A molecular recognition sensor system is provided incorporating a molecular imprinted nanosensor device.
Claims20
A molecular imprinted nanosensor device formed by the process steps of:
- (a) applying a first electrical insulation layer on a surface of silicon substrate;
- (b) fabricating on said first electrical insulation layer using photolithography pairs of gold electrodes separated by a microscale gap;
- (c) applying a second electrical insulation layer of silicon nitride onto most of a top surface of said pairs of gold electrodes;
- (d) depositing additional gold onto said gold electrodes using electrochemical deposition thereby decreasing said microgap to a nano sized gap of from about 2 to 100 nm between said gold electrode pairs;
- and
- (e) electrochemically polymerizing in said nanogap aniline monomers in the presence of a target analyte,
- thereby forming a conducting polymer nanojunction in the gap between gold electrode pairs.
4 more elements
(canceled)
A molecular imprinted nanosensor device formed by the process steps of:
- (a) applying a first electrical insulation layer on a surface of a substrate selected from the group consisting of silicon, glass, quartz, sapphire, plastic, ceramic, metal, and a flexible material;
- (b) fabricating on said first electrical insulation layer using photolithography pairs of electrodes formed from a metal selected from the group consisting of platinum, palladium, copper, and gold, said electrodes being separated by a microscale gap;
- (c) applying a second electrical insulation layer of a materiel selected from the group consisting of silicon nitride, silicon dioxide, and other insulating materials on most of a top surface of said pairs of electrodes;
- (d) depositing additional electrode materials selected from the group consisting of gold, platinum, palladium, copper using electrochemical deposition, thereby decreasing said microgap to a nanosized gap of from about 2 to 100 nm between said electrode pairs;
- and
- (e) electrochemically polymerizing in said nanogap a conducting polymer selected from the group consisting of polyaniline, polypyrrole, polythiophene, polyphenylene, polyacetylene, and derivatives thereof, in the presence of a target analyte together with a self-doped monomer selected from the group consisting of 3-aminobenzoic acid and other derivatives thereof which contain a carboxylic group or sulfonic group.
3 more elements
Dependencies are inferred from the claim text.