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US 11,307,158 B1Granted
Nanoparticles for chemiresistor sensors
AssigneeNanoscent Ltd.
InventorsYair Pasca, Katya Kapilov, Maayan Hirsch, Sima Israel, Yahel Zanti
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Abstract
A nanoparticle characterized by sensitivity to an analyte of interest, and comprising a conductive core in contact with a plurality of ligands bound to the conductive core is disclosed. Additionally, a chemiresistor sensor comprising the nanoparticles of the invention and a method of using thereof such as for detection of an analyte of interest in a gaseous sample are disclosed.
Claims20
A nanoparticle, comprising a conductive core in contact with a plurality of ligands bound to said core, wherein:
- each ligand comprises a first moiety thereof capable of binding to the core and a second moiety covalently bound to said first moiety;
- wherein the second moiety is an alkyl-aryl moiety comprising at least 2 aliphatic carbon atoms
- and the plurality of ligands are assembled to form a shell on top of said core;
- and wherein said nanoparticle is characterized by sensitivity to an analyte of interest.
1 more element
A chemiresistor sensor comprising:
- at least two electrodes;
- and
- a sensing element electrically connected to the two electrodes and comprising a structure made from a plurality of nanoparticles, wherein:
- each nanoparticle comprises a metal core in contact with a plurality of ligands bound to said core;
- each ligand comprises a first moiety or a salt thereof capable of binding to the core, and an alkyl-aryl moiety covalently bound to said first moiety;
- the plurality of ligands are assembled to form a shell on top of said core;
- and wherein said nanoparticle is characterized by sensitivity to an analyte of interest comprising a volatile organic compound (VOC) selected from an optionally unsaturated C1-C20 aldehyde, and an optionally unsaturated C1-C20alkane.
4 more elements
Dependencies are inferred from the claim text.