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Electrochemical sensing electrode based on selenium functionalized honeycomb porous carbon nanosheet

A sensing electrode and functionalization technology, applied in the direction of material electrochemical variables, nanotechnology, scientific instruments, etc., can solve the problems of poor sensitivity and slow detection speed, and achieve the effect of improving electrocatalytic performance

Active Publication Date: 2020-12-11
HARBIN UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0006] The object of the present invention is to solve the problems of slow detection speed and poor sensitivity of the non-enzyme sensor currently used to detect guanosine, and provide a selenium-based function Electrochemical sensing electrode of honeycomb porous carbon nanosheets

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  • Electrochemical sensing electrode based on selenium functionalized honeycomb porous carbon nanosheet
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  • Electrochemical sensing electrode based on selenium functionalized honeycomb porous carbon nanosheet

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specific Embodiment approach 1

[0021] Specific embodiment one: a kind of electrochemical sensing electrode based on selenium functionalized honeycomb porous carbon nanosheet of the present embodiment is characterized in that a kind of electrochemical sensing electrode based on selenium functionalized honeycomb porous carbon nanosheet consists of The GCE electrode and the GCE electrode wrapping are composed of a selenium-functionalized honeycomb porous carbon nanosheet composite.

specific Embodiment approach 2

[0022] Embodiment 2: This embodiment differs from Embodiment 1 in that the concentration of nickel nitrate hexahydrate in the selenium-based functionalized honeycomb porous carbon nanosheet composite is 9 mM-11 mM. Other steps and parameters are the same as those in the first embodiment.

specific Embodiment approach 3

[0023] Specific embodiment three: the difference between this embodiment and specific embodiment one or two is: the concentration of iron nitrate nonahydrate in the described selenium-based functionalized honeycomb porous carbon nanosheet composite is 4 mM ~ 6 mM . Other steps and parameters are the same as those in Embodiment 1 or 2.

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Abstract

The invention discloses an electrochemical sensing electrode based on a selenium functionalized honeycomb porous carbon nanosheet. The invention belongs to the technical field of electrochemical sensors, and particularly relates to an electrochemical sensing electrode based on a selenium functionalized honeycomb porous carbon nanosheet. The invention aims to solve the problems of complex preparation, low response speed and poor sensitivity of the existing enzyme-free sensor for detecting guanine nucleoside. The product is composed of a GCE electrode and a selenium functionalized honeycomb porous carbon nanosheet based compound wrapping the GCE electrode. An electrochemical sensor constructed on the basis of the electrochemical sensing electrode has excellent detection performance on guanosine.

Description

technical field [0001] The invention belongs to the technical field of electrochemical sensors, in particular to an electrochemical sensing electrode based on selenium functionalized honeycomb porous carbon nanosheets. Background technique [0002] Purine compounds are closely related to various biological activities. At present, many purine substances have been researched and developed as effective chemotherapeutic drugs, and the detection of elevated levels of purine bases in the body is of great significance for the study of DNA metabolism and DNA damage. As one of the four bases in DNA, guanine is most easily oxidized because it has the lowest oxidation potential. Therefore, most electrochemical analysis methods for detecting guanine concentration are based on the oxidation of guanine. Measuring the concentration of guanine in DNA is as important as measuring the concentration of the DNA itself. Guanine nucleoside is a product formed after reactive oxygen species free ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N27/30G01N27/327B82Y40/00
CPCG01N27/308G01N27/3277B82Y40/00
Inventor 马慧媛初明月朱迪谭立超庞海军王新铭
Owner HARBIN UNIV OF SCI & TECH
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