Unlock instant, AI-driven research and patent intelligence for your innovation.

A kind of electrode surface modification material and its preparation method and application

A technology for modifying materials and electrode surfaces, which is applied in the direction of material analysis, material analysis, and material electrochemical variables through electromagnetic means, which can solve the problems of low sensitivity and narrow linear range of sensors, and achieve high sensitivity, simple and feasible methods, and detection short time effect

Active Publication Date: 2021-05-14
SHANXI UNIV
View PDF2 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Among them, the sensor developed using carbon paste electrodes has a narrow linear range, while the sensor made of molecularly imprinted composite membrane has good selectivity but low sensitivity

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 kind of electrode surface modification material and its preparation method and application
  • A kind of electrode surface modification material and its preparation method and application
  • A kind of electrode surface modification material and its preparation method and application

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0018] Example 1 Preparation of electrode surface modification material SH-β-CD / Gr / PdAg suspension and determination of strychnine.

[0019] 1. Preparation of PdAg nano-alloy colloidal solution:

[0020] Dissolve 1mg of palladium acetate and 1mg of silver acetate in 5mL of methanol, stir well and put them in a water bath at 45°C for 15 minutes to obtain a uniformly dispersed colloidal solution.

[0021] 2. Preparation of mercapto-β-cyclodextrin functionalized graphene (SH-β-CD / Gr) loaded PdAg alloy nanoparticles:

[0022] 1) Mix 1.5mL of graphene oxide dispersion (1mg / mL) and 3.5mL of SH-β-CD (4mg / mL) under stirring, and 3 ·H 2 O adjusted the pH of the mixture solution to 10 to obtain a mixed solution of mercapto-β-cyclodextrose and graphene oxide.

[0023] 2) Take 1 mL of the above-mentioned PdAg nano-alloy colloidal solution and add it to the mixed solution of mercapto-β-cyclopaste and graphene oxide, stir the mixture evenly, add 30 μL of hydrazine hydrate, and place it i...

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 an electrode surface modification material and its preparation method and application, specifically a mercapto-β-cyclodextrin functionalized graphene-loaded palladium-silver alloy nanoparticle (SH-β-CD / Gr / PdAg) dispersed A suspension formed in water and a preparation method thereof. The above suspension is drip-coated on the surface of a conventional clean electrode and dried under an infrared lamp to obtain a stable and sensitive electrochemical sensor, which can realize simple and rapid detection of strychnine. The preparation method of the nanocomposite material in the present invention is simple and fast, with low cost and good stability, and the prepared electrochemical sensor has rapid response, high sensitivity, wide linear range and good reproducibility. The potential application value of quantitative analysis.

Description

technical field [0001] The invention relates to an electrode surface modification material, in particular to an electrode surface modification material for electrochemical detection of strychnine, a preparation method and application thereof. Background technique [0002] Strychnine is a natural alkaloid with various biological activities. It is clinically used to treat central nervous system diseases, relieve allergic symptoms, joint pain and traumatic pain, and improve blood circulation. In addition, some studies have shown that strychnine has cytotoxic, anti-proliferative, anti-tumor and anti-angiogenic effects on human cell lines (such as multiple myeloma and LoVo cell lines of human colon). Hepatocellular carcinoma (HCC) is one of the most lethal and most common cause of death worldwide. The prognosis of liver cancer is mainly affected by metastasis. Studies have found that strychnine can significantly inhibit the migration of liver cancer in vitro and in vivo. The u...

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): G01N27/30G01N27/48G01N27/416
CPCG01N27/308G01N27/4163G01N27/48
Inventor 郭玉晶刘志广钟发强韩玉洁董川
Owner SHANXI UNIV