SENSING ELEMENTS COMPRISING GOLD NANOPARTICLE-GRAFTED CARBON BLACK

Title:

SENSING ELEMENTS COMPRISING GOLD NANOPARTICLE-GRAFTED CARBON BLACK

Document Type and Number:

WIPO Patent Application WO/2019/159015

Kind Code:

A3

Abstract:

Some embodiments presented here relate to chemical sensors with enhanced sensitivity and selectivity. In an embodiment, the sensor is a composite thin film that comprises (e.g., is made of) chemically-modified carbon black and a chemically-sensitive polymer base. By grafting gold nanoparticles on carbon black, the number of binding sites on the sensor thin film is increased, thereby increasing the sensitivity. Furthermore, ligand attached gold nanoparticles are grafted on carbon black to increase the binding sites on the sensor thin film in some embodiments, which results in increased sensitivity as well as improved selectivity in some cases.

Inventors:

LEVARAY NICOLAS (CA)
OZHIKANDATHIL JAYAN (CA)
MASILAMANI ASHOK (CA)
PANARELLO TULLIO (CA)

Application Number:

PCT/IB2019/000471

Publication Date:

October 10, 2019

Filing Date:

February 07, 2019

Export Citation:

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Assignee:

STRATUSCENT INC (CA)

International Classes:

G01N37/00; C08K9/02; C08L101/00; G01D5/00; G01N27/12

Domestic Patent References:

WO2014203923A1

2014-12-24

Foreign References:

US20070114138A1	2007-05-24
US20050142030A1	2005-06-30
GB2560767A	2018-09-26

Other References: