Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

A screen-printed electrode for detecting hydrogen peroxide and its preparation method

A technology of screen printing electrodes and hydrogen peroxide, applied in the direction of electrochemical variables of materials, etc., can solve problems such as poor selectivity

Active Publication Date: 2021-03-02
JIANGNAN UNIV
View PDF7 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The existing detection of hydrogen peroxide based on screen-printed electrodes is mainly based on enzyme-free detection, which has poor selectivity and is easily affected by other interferences in the detection system.

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • A screen-printed electrode for detecting hydrogen peroxide and its preparation method
  • A screen-printed electrode for detecting hydrogen peroxide and its preparation method
  • A screen-printed electrode for detecting hydrogen peroxide and its preparation method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0028] Weigh 1.0415g hydrophobic monomer styrene St (10mmol), 0.7206g hydrophilic monomer acrylic acid AA (10mmol), 1.9325g electroactive monomer N-vinyl carbazole VCz (10mmol), 1.5721g biocompatible monomer Bulk dimethylaminoethyl methacrylate DMA (10 mmol) and 52.7 mg initiator azobisisobutyronitrile AIBN were added to a round bottom flask. Add 40 mL of N,N-dimethylformamide DMF as a solvent, and after fully dissolving, react at 75° C. for 24 h under the protection of nitrogen. The reaction solution was precipitated in ether, the precipitate was dissolved in DMF, and the precipitation was repeated three times. The product PSACD was obtained as a white solid after drying in vacuo.

[0029] Weigh 25 mg of PSACD polymer, dissolve in DMF, and prepare a 10 mg / mL polymer solution. While stirring, quickly add 10 mL of deionized water to the polymer solution and stir overnight. After the solution was dialyzed with deionized water for 24 h, the volume was adjusted to 25 mL to obta...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention discloses a screen-printed electrode modified by polymer colloid particles, which is used for hydrogen peroxide detection. Synthesize polymers, self-assemble in solvents to obtain polymer colloidal particles, and then drop-coat polymer colloidal particle dispersions, biorecognition element solutions, and Nafion solutions on the surface of screen-printed electrodes to prepare electrodes for hydrogen peroxide detection . The polydimethylaminoethyl methacrylate in the polymer colloid particle is used to provide a bio-affinity environment for maintaining the activity of the biological recognition motif, and the electroactive carbazole motif helps the electron transfer between the enzyme and the electrode. The invention has the advantages of fast response speed, good stability and good selective anti-interference performance.

Description

technical field [0001] The invention relates to the field of biological detection. Background technique [0002] Hydrogen peroxide is not only an intermediate product and an important medium in food, pharmaceutical, industrial and environmental analysis, but also a by-product of oxidative metabolic pathways and a common reactive oxygen species (ROS) in cells, which is associated with cell damage, aging and some diseases such as heart disease. Vascular disease, Alzheimer's and cancer are linked. Therefore, the detection of hydrogen peroxide is particularly important. At present, many techniques including titration, spectroscopy, and chemiluminescence have been used to determine the content of hydrogen peroxide. The above three methods have obvious disadvantages, which are time-consuming, expensive, susceptible to interference and require large-scale instruments and professional testing. Electrochemical biosensors have been developed for hydrogen peroxide detection, which ov...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Patents(China)
IPC IPC(8): G01N27/30
Inventor 徐梦祎洪慧李小杰刘晓亚魏玮黄雪雯
Owner JIANGNAN UNIV
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com