Title: Modular chemiresistive sensor

Abstract

The present invention relates to a modular chemiresistive sensor. In particular, a modular chemiresistive sensor for hypergolic fuel and oxidizer leak detection, carbon dioxide monitoring and detection of disease biomarkers. The sensor preferably has two gold or platinum electrodes mounted on a silicon substrate where the electrodes are connected to a power source and are separated by a gap of 0.5 to 4.0 .mu.M. A polymer nanowire or carbon nanotube spans the gap between the electrodes and connects the electrodes electrically. The electrodes are further connected to a circuit board having a processor and data storage, where the processor can measure current and voltage values between the electrodes and compare the current and voltage values with current and voltage values stored in the data storage and assigned to particular concentrations of a pre-determined substance such as those listed above or a variety of other substances.

Inventors:

Alam, Maksudul M.; Sampathkumaran, Uma

Issue Date:

Tue Feb 20 00:00:00 EST 2018

Research Org.:

InnoSense, LLC, Torrance, CA (United States)

Sponsoring Org.:

USDOE

OSTI Identifier:

1423282

Patent Number(s):

9896772

Application Number:

14/658,034

Assignee:

INNOSENSE LLC (Torrance, CA)

Patent Classifications (CPCs):

B - PERFORMING OPERATIONS B82 - NANOTECHNOLOGY B82Y - SPECIFIC USES OR APPLICATIONS OF NANOSTRUCTURES

C - CHEMISTRY C25 - ELECTROLYTIC OR ELECTROPHORETIC PROCESSES C25B - ELECTROLYTIC OR ELECTROPHORETIC PROCESSES FOR THE PRODUCTION OF COMPOUNDS OR NON-METALS

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B - PERFORMING OPERATIONS B82 - NANOTECHNOLOGY B82Y - SPECIFIC USES OR APPLICATIONS OF NANOSTRUCTURES

B82Y30/00 - Nanotechnology for materials or surface science, e.g. nanocomposites

C - CHEMISTRY C25 - ELECTROLYTIC OR ELECTROPHORETIC PROCESSES C25B - ELECTROLYTIC OR ELECTROPHORETIC PROCESSES FOR THE PRODUCTION OF COMPOUNDS OR NON-METALS

C25B3/00 - Electrolytic production of organic compounds

G - PHYSICS G01 - MEASURING G01N - INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES

G01N27/3278 - {involving nanosized elements, e.g. nanogaps or nanoparticles
G01N27/414 - Ion-sensitive or chemical field-effect transistors, i.e. ISFETS or CHEMFETS
G01N27/4145 - {specially adapted for biomolecules, e.g. gate electrode with immobilised receptors}

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DOE Contract Number:  

SC0008210

Resource Type:

Patent

Resource Relation:

Patent File Date: 2015 Mar 13

Country of Publication:

United States

Language:

English

Subject:

47 OTHER INSTRUMENTATION