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

Conductive polymer-amino acid composite coating and preparation method thereof

A conductive polymer and composite coating technology, applied in electrolytic organic material coating and other directions, can solve the problems of tissue damage, nano-toxicity, induced carcinogenesis, etc., and achieve the effects of large capacitance, low electrochemical impedance, and large specific surface area.

Inactive Publication Date: 2015-02-04
SHANGHAI JIAO TONG UNIV
View PDF5 Cites 4 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although the conductive polymer coating synthesized by using multi-walled carbon nanotubes as negative doping materials has good properties, negatively charged ions will enter and exit the conductive polymer composite coating during the process of passing current or applying voltage, resulting in multi-walled carbon nanotubes. Carbon nanotubes left behind in biological tissues cause nanotoxicity, and there is a risk of causing tissue damage and inducing cancer
Therefore, such conductive polymer composite coatings are not suitable for use as implantable electrostimulation electrodes, bioelectrochemical sensors, or drug delivery actuators

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
  • Conductive polymer-amino acid composite coating and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033] Such as figure 1 As shown, the present embodiment provides a preparation method of conductive polymer-amino acid composite coating, comprising:

[0034] 1. Weigh 0.001 mole of aspartic acid, add it to 100 ml of deionized water, and add 0.001 mole of 3,4-ethylenedioxythiophene (EDOT) monomer to the aspartic acid aqueous solution;

[0035] 2. Place the solution in an ultrasonic ultrasonic cleaner for half an hour, and stir it at a speed of 150 rpm for 4 hours to prepare aspartic acid and 3,4-ethylenedioxythiophene (EDOT) monomer concentrations of 0.01 mol / liter of electroplating solution, blow nitrogen into the electroplating solution for ten minutes, and discharge the oxygen therein;

[0036] 3. Immerse the gold electrode to be electroplated and the platinum foil counter electrode in the electroplating solution, respectively connect the positive electrode (working electrode) and the negative electrode (counter electrode) of the electrochemical workstation, use current p...

Embodiment 2

[0039] 1. Weigh 0.0005 mole of glutamic acid and 0.0005 mole of lysine, add to 100 milliliters of deionized water, add 0.0005 mole of thiophene (Th) monomer in glutamic acid and lysine aqueous solution;

[0040] 2. Put the solution in an ultrasonic ultrasonic cleaner for 1 hour, and stir it at a speed of 400 rpm for 3 hours to form electroplating with glutamic acid, lysine and thiophene (Th) monomer concentrations of 0.005 mol / liter respectively. solution, blow nitrogen into the electroplating solution for ten minutes, and discharge the oxygen therein;

[0041] 3. Immerse the conductive glass electrode to be electroplated and the glassy carbon electrode counter-electrode in the electroplating solution, respectively connect the positive and negative electrodes of the current source, use constant current electroplating, set the current density to 0.2 mA / cm2, deposit time 1200 seconds;

[0042] 4. Take out the conductive glass electrode from the electroplating solution, and rins...

Embodiment 3

[0044] 1. Weigh 0.01 mole of glutamic acid, add it to 100 milliliters of deionized water, and add 0.01 mole of pyrrole (Py) monomer to the aspartic acid aqueous solution;

[0045] 2. Place the solution in an ultrasonic ultrasonic cleaner for 4 hours, and stir for 2 hours at a rotating speed of 600 rpm to prepare an electroplating solution with a concentration of 0.1 mol / liter of glutamic acid and pyrrole (Py) monomers, and add it to the electroplating solution. Nitrogen was blown into the solution for ten minutes to discharge the oxygen;

[0046] 3. Immerse the platinum-iridium alloy electrode to be electroplated and the counter electrode of the stainless steel mesh in the electroplating solution, connect the positive and negative electrodes of the voltage source respectively, and use constant voltage electroplating. The set voltage is 0.8 volts, and the deposition time is 5000 seconds;

[0047] 4. The platinum-iridium alloy electrode is taken out from the electroplating solut...

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
current densityaaaaaaaaaa
Login to View More

Abstract

The invention provides a conductive polymer-amino acid composite coating and a preparation method thereof. The method comprises following steps: (1) firstly weighing amino acid and a monomer of a conductive polymer and adding the amino acid and the monomer to pure water, dissolving the solutes in the pure water fully in an ultrasonic and stirring manner to form an electroplating solution, and pumping nitrogen into the electroplating solution for preventing oxidation of the monomer of the conductive polymer; and (2) soaking a to-be-electroplated electrode and a counter electrode into the electroplating solution and respectively connecting the to-be-electroplated electrode and the counter electrode to a positive pole and a negative pole of an electroplating device and performing electroplating for a time to form the amino-acid-doped conductive polymer composite coating on a surface of the to-be-electroplated electrode. The conductive polymer-amino acid composite coating is uniform and stable, is good in electrochemical performance, stability and biocompatibility, and can be used as an electrode-tissue interface sensitive material for preparing a biomedical electronic device.

Description

technical field [0001] The invention relates to a composite coating in the technical fields of microelectronics manufacturing and biomedical engineering and a preparation method thereof, in particular to a conductive polymer-amino acid composite coating and a preparation method thereof. Background technique [0002] Biocompatible microelectrodes manufactured by microelectronic processing technology are widely used in the field of biomedical engineering, including: implantable microelectrodes implanted in nerve and muscle tissue for electrophysiological signal recording and functional electrical stimulation, Microelectrode arrays for electrical stimulation or extracellular recording of nerve cells or stem cells sensitive to electrical stimulation, electrochemical sensors for detecting biomolecules (such as dopamine), and actuators for controllable drug delivery and release, etc. In the aforementioned devices, the surface-modified sensitive material part of the interaction bet...

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): C25D3/02C25D9/02
CPCC25D3/02C25D9/02
Inventor 刘景全田鸿昌康晓洋何庆杨斌陈翔杨春生
Owner SHANGHAI JIAO TONG 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