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

Antibacterial material with adjustable antibacterial ability and preparation method thereof and application thereof

A technology of antibacterial materials and capabilities, applied in the field of antibacterial materials and their preparation, can solve the problems of inability to adjust antibacterial ability, long antibacterial time, poor antibacterial effect, etc., achieve stable effect, strong pertinence, and avoid the effect of external environment

Active Publication Date: 2019-03-08
CHINA UNIV OF GEOSCIENCES (BEIJING)
View PDF3 Cites 2 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, the use of natural clay for antibacterial treatment has the following problems: poor antibacterial effect and large dosage; long antibacterial time and low efficiency; antibacterial ability under the condition of pH9, which is easy to cause secondary damage to the body ; The antibacterial effect is poor, and the antibacterial ability cannot be adjusted according to actual needs

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
  • Antibacterial material with adjustable antibacterial ability and preparation method thereof and application thereof
  • Antibacterial material with adjustable antibacterial ability and preparation method thereof and application thereof
  • Antibacterial material with adjustable antibacterial ability and preparation method thereof and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment approach

[0040] According to a preferred embodiment of the present invention, the chemical reduction method is to mix a chemical reducing agent with iron-containing natural clay,

[0041] The chemical reducing agent is a strong reducing agent, preferably selected from one or more of sodium dithionite, sodium hypophosphite, hydrazine hydrate or sodium bisulfite.

[0042] In a further preferred embodiment, the chemical reducing agent is one or more of sodium dithionite, sodium hypophosphite or sodium bisulfite.

[0043] In a further preferred embodiment, the chemical reducing agent is sodium dithionite.

[0044] According to a preferred embodiment of the present invention, the weight ratio of the iron-containing natural clay to the reducing agent is 1:(2-7), preferably 1:(3-6), more preferably 1:4.

[0045] According to a preferred embodiment of the present invention, the antibacterial regulator is a positive regulator that enhances the antibacterial ability of the reduced iron-containi...

Embodiment 1

[0126] (1) Take 1g of iron-containing nontronite (Sp_Clay_NAu-2; American Clay Society origin clay resource bank) and dissolve it in 100mL (sodium citrate-sodium bicarbonate buffer solution (the preparation method is to mix 1M sodium bicarbonate with 0.3M Sodium citrate is mixed according to the volume ratio of 8:1)), and ultrasonically stirred to make a suspension with a concentration of 10g / L, which is placed in a reaction container; the reaction container is first passed through nitrogen for 20min under the condition of a water bath at 100°C, and then Add 4g of sodium dithionite to it, continue to pass nitrogen gas for 5 minutes, seal the reactor, place it in an oven at 60°C for 24 hours, and obtain a reduced iron-containing nontronite. The reduced nontronite needs to be used in an anaerobic box. Wash three times with deionized water;

[0127] (2) Detect the concentration of ferrous iron in the reduced iron-containing nontronite, the steps are as follows:

[0128] (2.1) Ta...

Embodiment 2

[0134] The reduced iron-containing nontronite (calculated as ferrous iron), ascorbic acid and MES (pre-adjusted to pH 6) were mixed in a molar ratio of 3:2:2, and the three were shaken and mixed in an anaerobic operation box for 30 minutes. Freeze-drying is carried out under vacuum conditions to obtain antibacterial materials.

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 antibacterial material with adjustable antibacterial ability and a preparation method thereof and application thereof. The antibacterial material with the adjustable antibacterial ability comprises reduced ferruginous clay with the antibacterial ability and an antibacterial regulator used for adjusting the antibacterial ability of the reduced ferruginous clay; the antibacterial regulator comprises a positive regulator and a negative regulator; and an antibacterial effect can be adjusted according to actual use demands under a condition of being mild to skins. The preparation method of the antibacterial material with the adjustable antibacterial ability, disclosed by the invention, has the advantages of simple operation, easily controlled condition and low requirements on equipment.

Description

technical field [0001] The invention belongs to the field of antibacterial drugs, and in particular relates to an antibacterial material with adjustable antibacterial ability, a preparation method and application thereof. Background technique [0002] Since antibiotics mainly act on specific components or structures in the cells of the body, they have certain side effects on the body. Moreover, with the widespread use of antibiotics, a large number of resistant strains and superbugs continue to emerge, and the research and development cycle of new antibiotics is extremely long and expensive, resulting in great disadvantages of antibiotics. In response to this situation, finding antibacterial drugs that can replace antibiotics has become a hot research field. [0003] In recent years, relevant scholars have found that natural clay can be used instead of antibiotics for antibacterial, and the existing clay minerals collected in nature can be directly applied to the affected a...

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): A61K33/26A61P31/04A61K31/375
CPCA61K31/375A61K33/26A61P31/04A61K2300/00
Inventor 王曦董海良夏庆银
Owner CHINA UNIV OF GEOSCIENCES (BEIJING)
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