Modular chemiresistive sensor

Title: Modular chemiresistive sensor

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:: 2018-02-20

OSTI Identifier:: 1423282

Assignee:: INNOSENSE LLC (Torrance, CA) CHO

Patent Number(s):: 9,896,772

Application Number:: 14/658,034

Contract Number:: SC0008210

Resource Relation:: Patent File Date: 2015 Mar 13

Research Org:: InnoSense, LLC, Torrance, CA (United States)

Sponsoring Org:: USDOE

Country of Publication:: United States

Language:: English

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Other works cited in this record:

Nanowire sensor, sensor array, and method for making the same
patent, May 2012

Yun, Minhee; Myung, Nosang; Vasquez, Richard
US Patent Document 8,187,865
URL: http://patft.uspto.gov/netacgi/nph-Parser?Sect2=PTO1&Sect2=HITOFF&p=1&u=%2Fnetahtml%2FPTO%2Fsearch-bool.html&r=1&f=G&l=50&d=PALL&RefSrch=yes&Query=PN%2F8187865

Defect controlled nanotube sensor and method of production
patent-application, February 2005

Gokturk, Halit Suha
US Patent Application 10/638483; 20050036905
URL: http://appft.uspto.gov/netacgi/nph-Parser?Sect1=PTO1&Sect2=HITOFF&d=PG01&p=1&u=%2Fnetahtml%2FPTO%2Fsrchnum.html&r=1&f=G&l=50&s1=%2220050036905%22.PGNR.&OS=DN/20050036905&RS=DN/20050036905

Apparatus and method for detecting one or more analytes
patent-application, May 2012

Kurkina, Tetiana; Vlandas, Alexis; Rafiefard, Nassim
US Patent Application 13/033525; 20120134880
URL: http://appft.uspto.gov/netacgi/nph-Parser?Sect1=PTO1&Sect2=HITOFF&d=PG01&p=1&u=%2Fnetahtml%2FPTO%2Fsrchnum.html&r=1&f=G&l=50&s1=%2220120134880%22.PGNR.&OS=DN/20120134880&RS=DN/20120134880

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