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1. US20210131994 - ENGINEERING CARBON-BASED STRUCTURES FOR SENSING APPLICATIONS

Office
United States of America
Application Number 16635634
Application Date 31.07.2018
Publication Number 20210131994
Publication Date 06.05.2021
Publication Kind A1
IPC
G01N 27/30
GPHYSICS
01MEASURING; TESTING
NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
27Investigating or analysing materials by the use of electric, electro-chemical, or magnetic means
26by investigating electrochemical variables; by using electrolysis or electrophoresis
28Electrolytic cell components
30Electrodes, e.g. test electrodes; Half-cells
G01N 33/487
GPHYSICS
01MEASURING; TESTING
NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
33Investigating or analysing materials by specific methods not covered by groups G01N1/-G01N31/131
48Biological material, e.g. blood, urine; Haemocytometers
483Physical analysis of biological material
487of liquid biological material
CPC
G01N 33/48707
GPHYSICS
01MEASURING; TESTING
NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
33Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
48Biological material, e.g. blood, urine
483Physical analysis of biological material
487of liquid biological material
48707by electrical means
G01N 27/308
GPHYSICS
01MEASURING; TESTING
NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
27Investigating or analysing materials by the use of electric, electrochemical, or magnetic means
26by investigating electrochemical variables; by using electrolysis or electrophoresis
28Electrolytic cell components
30Electrodes, e.g. test electrodes; Half-cells
308at least partially made of carbon
Applicants NEW YORK UNIVERSITY
Inventors Davood SHAHRJERDI
Roozbeh KIANI
Ting WU
Title
(EN) ENGINEERING CARBON-BASED STRUCTURES FOR SENSING APPLICATIONS
Abstract
(EN)

Principles for reliable manufacturing carbon-based electrodes with arbitrary sensitivity and homogeneity are provided. Specifically, the sensitivity of carbon-based electrodes can be engineered by changing the density of sp2 type defects present in a multilayer graphene film. The engineered carbon-based electrodes can be used as a passive sensing element in electrochemical measurement of a target analyte. Carbon-based electrodes are also disclosed that have sp2 hybridization and can include multilayer graphene films. The disclosed carbon-based electrodes have a density of zero-dimensional defects (i.e., point-like defects) which provides enhanced area-normalized sensitivity when used in sensing applications. The maximum area-normalized sensitivity is achieved at the point defect density of 4-5×1012 cm−2.

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