Electrochemical sensing electrode based on flower-like zinc oxide@ferrocene functionalized three-dimensional graphene

A flower-shaped zinc oxide and sensing electrode technology, which is applied in the field of electrochemical sensing electrodes, can solve the problems of poor sensitivity and slow detection speed, and achieve the effect of improving electrocatalytic performance

Active Publication Date: 2020-04-17
HARBIN UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0007] The purpose of the present invention is to solve the problem of slow detection speed and poor sensitivity of the enzyme-free sensor currently used to detect adrenaline, and to provide an electrochemical sensing electrode based on flower-like zinc oxide@ferrocene functionalized three-dimensional graphene

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  • Electrochemical sensing electrode based on flower-like zinc oxide@ferrocene functionalized three-dimensional graphene
  • Electrochemical sensing electrode based on flower-like zinc oxide@ferrocene functionalized three-dimensional graphene
  • Electrochemical sensing electrode based on flower-like zinc oxide@ferrocene functionalized three-dimensional graphene

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specific Embodiment approach 1

[0023] Specific embodiment one: A kind of electrochemical sensing electrode based on flower-shaped zinc oxide@ferrocene functionalized three-dimensional graphene in this embodiment is characterized in that it is based on a flower-shaped zinc oxide@ferrocene functionalized three-dimensional graphite The electrochemical sensing electrode of ene is composed of a GCE electrode and a three-dimensional graphene composite based on flower-like ZnO@ferrocene functionalization wrapped around the GCE electrode.

specific Embodiment approach 2

[0024] Specific embodiment 2: The difference between this embodiment and specific embodiment 1 is that the electrochemical sensing electrode based on flower-like zinc oxide@ferrocene functionalized three-dimensional graphene is characterized in that the flower The zinc oxide nanosheets are intercalated by zinc oxide flakes, the thickness of the nanosheets is 24 nm, and the particle size is 0.06 μm. The other steps and parameters are the same as those in Embodiment 1.

specific Embodiment approach 3

[0025] Specific embodiment three: the difference between this embodiment and specific embodiment one or two is: the concentration of graphene in the described one based on flower-like zinc oxide@ferrocene functionalized three-dimensional graphene composite is 19mg / mL~ 22mg / mL. And freeze-dried at -40°C for 24 hours in a freeze dryer. 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 flower-like zinc oxide@ferrocene functionalized three-dimensional graphene, which belongs to the technical field of electrochemical sensors, and particularly relates to an electrochemical sensing electrode based on flower-like zinc oxide@ferrocene functionalized three-dimensional graphene. The problems of complex preparation, low response speed and poor sensitivity of the existing enzyme-free sensor for detecting epinephrine are solved. The product is composed of a GCE electrode and a functionalized three-dimensional graphene compound based on flower-like zinc oxide@ferrocene, the functionalized three-dimensional graphene compound wraps the GCE electrode; and the electrochemical sensor constructed on the basis of the electrochemical sensing electrode has excellent detection performance on epinephrine.

Description

technical field [0001] The invention belongs to the technical field of electrochemical sensors, in particular to an electrochemical sensing electrode based on flower-like zinc oxide@ferrocene functionalized three-dimensional graphene. Background technique [0002] Epinephrine is an important catecholamine neurotransmitter in the mammalian central nervous system and a hormone secreted by the adrenaline medulla. When people experience certain stimuli, this chemical is secreted, which can make people breathe faster, heartbeat and blood flow faster, pupils dilate, and provide more energy for physical activities. Adrenaline will increase the contractility of the heart, dilate the blood vessels of the heart, liver, muscles and bones, and constrict the blood vessels of the skin and mucous membranes. It is a must-have for saving dying people or animals. The disorder of adrenaline metabolism can lead to the occurrence of certain diseases. The level of adrenaline in peripheral blood ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N27/327
CPCG01N27/3277G01N27/3278
Inventor 马慧媛初明月朱迪庞海军谭立超王新铭
Owner HARBIN UNIV OF SCI & TECH
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