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

Transparent self-adhesive conductive hydrogel electrode and preparation method thereof

A conductive hydrogel, self-adhesive technology, applied in sensors, diagnostics, applications, etc., can solve the problems that hydrogel electrodes cannot meet biocompatibility, high transparency and high adhesion at the same time, and achieve good biocompatibility High transparency, low price effect

Inactive Publication Date: 2021-03-09
北京宁矩科技有限公司
View PDF0 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a transparent self-adhesive conductive hydrogel electrode and its preparation method, so as to solve the problem that the current hydrogel electrode cannot satisfy good biocompatibility, high transparency and high adhesion at the same time. The gel electrode is mainly composed of polyvinyl alcohol (PVA), polyvinylpyrrolidone (PVP) and polydopamine nanodots (PDA NDs). The material itself has good biocompatibility; among them, PVA and PVP are generated by acid catalysis under heating conditions. The ketal reaction forms covalent cross-linking sites, thereby constituting the backbone network of the entire hydrogel, and this process does not involve toxic and harmful organic reagents, initiators, and cross-linking agents; where PDA NDs are treated by hydrogen peroxide / sodium hydroxide After polydopamine is obtained, PDA NDs and sodium ions (Na+) together constitute the internal conductive network of the hydrogel; the preparation process of the hydrogel electrode is simple, the material cost is low, and it is suitable for large-scale production

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
  • Transparent self-adhesive conductive hydrogel electrode and preparation method thereof
  • Transparent self-adhesive conductive hydrogel electrode and preparation method thereof
  • Transparent self-adhesive conductive hydrogel electrode and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

preparation example Construction

[0040] The present invention also provides an embodiment of a preparation method of a transparent self-adhesive conductive hydrogel electrode, the preparation method of a transparent self-adhesive conductive hydrogel electrode, and the specific preparation process includes: (1) preparation of the hydrogel ; (2) preparation of hydrogel electrodes;

[0041] (1) The preparation of hydrogel comprises:

[0042] Step 1: adding polyvinyl alcohol (PVA) to deionized water, and dissolving it by heating and stirring to obtain a PVA solution;

[0043]Step 2: adding polyvinylpyrrolidone (PVP) to deionized water, and dissolving with ultrasonic assistance to obtain a PVP solution;

[0044] Step 3: Add dopamine hydrochloride to the slightly alkaline Tris-HCl buffer solution, stir under the open for 12 hours to obtain a PDA solution, and then mix and heat with a mixed solution of hydrogen peroxide and sodium hydroxide to obtain polydopamine nano Dot (PDA NDs) solution;

[0045] Step 4: Mix ...

Embodiment 1

[0053] (1) Preparation of conductive hydrogel:

[0054] Step 1: adding PVA in deionized water, dissolving it by heating and stirring to obtain a PVA solution with a mass concentration percentage of 20%;

[0055] Step 2: Add a certain amount of dopamine hydrochloride to the slightly alkaline Tris-HCl buffer solution, stir under the open for 12 hours to obtain a PDA solution, and then mix and heat with hydrogen peroxide / sodium hydroxide solution until a light Yellow PDA NDs solution;

[0056] Step 3: mix the PVA solution obtained in step 1 with the PDA NDs solution obtained in step 2 in a volume ratio of 1:0.4;

[0057] Step 4: Adjust the pH of the mixed solution obtained in Step 3 to acidic, and heat treatment.

Embodiment 2

[0059] (1) Preparation of conductive hydrogel:

[0060] Step 1: adding PVP in deionized water, and dissolving with ultrasonic assistance, to obtain a PVP solution with a mass concentration percentage of 40%;

[0061] Step 2: Add a certain amount of dopamine hydrochloride to the slightly alkaline Tris-HCl buffer solution, stir under the open for 12 hours to obtain a PDA solution, and then mix and heat with hydrogen peroxide / sodium hydroxide solution until a light Yellow PDA NDs solution;

[0062] Step 3: mix the PVP solution obtained in step 1 with the PDA NDs solution obtained in step 2 in a volume ratio of 1:0.4;

[0063] Step 4: Adjust the pH of the mixed solution obtained in Step 3 to acidic, and heat treatment.

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

PropertyMeasurementUnit
transmittivityaaaaaaaaaa
strengthaaaaaaaaaa
Login to View More

Abstract

The invention relates to a transparent self-adhesion conductive hydrogel electrode and a preparation method thereof. The electrode comprises: a protective film layer, a conductive hydrogel layer and abacking layer, wherein the protective film layer, the conductive hydrogel layer and the backing layer are arranged in order from top to bottom, the protective film layer is a polyethylene film, the conductive hydrogel layer is a chemical crosslinking type hydrogel, the chemical crosslinking type hydrogel is obtained by subjecting polyvinyl alcohol and polyvinyl pyrrolidone to a ketal reaction through acid catalysis under a heating condition, the hydrogel is a three-dimensional network structure formed by polyvinyl alcohol and polyvinyl pyrrolidone, and the backing layer is a non-woven fabric.The transparent self-adhesion conductive hydrogel electrode provided by the invention is good in biocompatibility, high in transparency, high in adhesion, simple and convenient in preparation process, low in material cost and suitable for large-scale production.

Description

technical field [0001] The design of the present invention relates to the technical fields of sensor and bioelectricity collection / stimulation, etc., specifically to a transparent self-adhesive conductive hydrogel electrode, in particular to a high transparency, self-adhesive, and adjustable conductivity and electrode shape conductive hydrogel electrodes. Background technique [0002] With the rapid development of medical technology and people's increasing attention to health issues, the demand for precision medicine and individual medicine is getting higher and higher. Various medical monitoring equipment have begun to enter the daily life of the public, such as blood glucose meters and heart rate monitors. Equipment, muscle rehabilitation training equipment, electronic physiotherapy equipment, etc. Among them, instruments based on bioelectrical signal monitoring are the most widely used. These electrical signals mainly include electroencephalogram (EEG), electromyographic...

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 Applications(China)
IPC IPC(8): A61B5/259A61B5/266A61B5/28A61B5/291A61B5/296C08J3/075C08J3/24C08L29/04C08L39/06
CPCC08J3/075C08J3/246C08J2339/06C08J2429/04
Inventor 白硕王安河韩青权
Owner 北京宁矩科技有限公司
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