Method for preparing nano-silver-based dual-curing dental antibacterial adhesive

A dual-curing, adhesive technology, used in dental preparations, antibacterial drugs, medical preparations containing active ingredients, etc. It can reduce the problems such as decline, and achieve the effect of stable and lasting antibacterial performance, stable binder system and good dispersibility.

Inactive Publication Date: 2015-04-29
SHANGHAI JIAO TONG UNIV +1
View PDF2 Cites 12 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, studies have shown that silver nanoparticles are often agglomerated, and the smaller the particles, the more severe the agglomeration, so it is difficult to fully disperse in the resin
This will lea

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
  • Method for preparing nano-silver-based dual-curing dental antibacterial adhesive
  • Method for preparing nano-silver-based dual-curing dental antibacterial adhesive
  • Method for preparing nano-silver-based dual-curing dental antibacterial adhesive

Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0050] Example 1

[0051] a. In 100 parts by volume of absolute ethanol, add 100 parts of deionized water and 12 parts of 28% concentrated ammonia, stir evenly at 25°C, and then add 20 parts of tetraethyl silicate dropwise (TEOS), heating and stirring for 18 hours;

[0052] b. After centrifugation, washing and drying at room temperature, monodisperse spherical SiO is obtained 2 Particles

[0053] c. SiO obtained from b 2 Disperse in deionized water by ultrasonic method, SiO 2 The mass ratio of water to water is 2:100, and every 1 part of SiO 2 The aqueous solution was mixed with 2 parts of silver ammonia solution with a concentration of 0.3mol / L, and stirred at room temperature for 3 hours;

[0054] d. After three centrifugal washing of the mixture obtained in c, it is dispersed in 7 parts of deionized water;

[0055] e. In the dispersion obtained in d, add 3 parts of a reducing agent solution with a concentration of 0.3mol / L, stir at 25°C for 1 hour, and centrifuge to obtain silver-lo...

Example Embodiment

[0060] Example 2

[0061] a. In 100 parts by volume of absolute ethanol, add 2 parts of deionized water and 12 parts of 28% concentrated ammonia, stir evenly at 25°C, and then add 20 parts of tetraethyl silicate dropwise (TEOS), heat and stir for 18 hours; a. In 100 parts by volume of absolute ethanol, add 100 parts of deionized water and 12 parts of 28% concentrated ammonia water, stir evenly at 25°C, then Add 20 parts of tetraethyl silicate (TEOS) dropwise, heat and stir for 18 hours;

[0062] b. After centrifugation, washing and drying at room temperature, monodisperse spherical SiO is obtained 2 Particles

[0063] c. SiO obtained from b 2 Disperse in deionized water by ultrasonic method, SiO 2 The mass ratio of water to water is 2:100, and every 1 part of SiO 2 The aqueous solution was mixed with 2 parts of silver ammonia solution with a concentration of 0.3mol / L, and stirred at room temperature for 3 hours;

[0064] d. After three centrifugal washing of the mixture obtained in c...

Example Embodiment

[0070] Example 3

[0071] a. In 100 parts by volume of absolute ethanol, add 100 parts of deionized water and 12 parts of 28% concentrated ammonia, stir evenly at 25°C, and then add 20 parts of tetraethyl silicate dropwise (TEOS), heating and stirring for 18 hours;

[0072] b. After centrifugation, washing and drying at room temperature, monodisperse spherical SiO is obtained 2 Particles

[0073] c. SiO obtained from b 2 Disperse in deionized water by ultrasonic method, SiO 2 The mass ratio of water to water is 2:100, and every 1 part of SiO 2 The aqueous solution was mixed with 2 parts of silver ammonia solution with a concentration of 0.3mol / L, and stirred at room temperature for 3 hours;

[0074] d. After three centrifugal washing of the mixture obtained in c, it is dispersed in 7 parts of deionized water;

[0075] e. In the dispersion obtained in d, add 3 parts of a reducing agent solution with a concentration of 0.3mol / L, stir at 80°C for 1 hour, and centrifuge and wash to obtain ...

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
Particle sizeaaaaaaaaaa
Bond strengthaaaaaaaaaa
Bond strengthaaaaaaaaaa
Login to view more

Abstract

The invention provides a method for preparing a nano-silver-based dual-curing dental antibacterial adhesive. The method comprises the following specific steps: (1) preparing monodisperse spherical nano SiO2 particles by using a Stober method; (2) generating nano silver particles with small particle sizes on the surfaces of the nano SiO2 particles by utilizing a reduction reaction of an ammonia silver nitrate solution, namely preparing a nanoscale silver-loaded inorganic antibacterial agent; (3) performing proper surface modification on the previous silver-loaded inorganic antibacterial agent; and (4) preparing the optical and thermal dual-curing dental adhesive, and adding the inorganic antibacterial agent. The dental adhesive prepared by the invention has the multiple advantages of simple and feasible preparation process, product system stability, high operability, excellent antibacterial performance, durability and the like and has high clinical application potential.

Description

technical field [0001] The invention relates to the application field of nanomaterials, in particular to a method for preparing a dual-curing dental antibacterial adhesive based on nanometer silver-loaded inorganic antibacterial agents. Background technique [0002] With the increasing demand for modern dental restoration and cosmetics, the application of dental bonding technology is becoming more and more extensive. Dental bonding technology includes enamel bonding and dentin bonding. Since the invention of acid etching technology in the 1950s, enamel bonding technology has been very mature. There are many difficulties, but they have been greatly improved and improved. By the early 1990s, the invention of the self-etching bonding system made the dental bonding technology more convenient, fast and effective, and opened a new chapter for the progress of the dental bonding technology. Today, dental bonding technology has paid more attention to endowing the bonding system wit...

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
IPC IPC(8): A61K6/06A61K33/38A61P31/04
Inventor 何丹农张彬周涓朱君杨迪诚金彩虹
Owner SHANGHAI JIAO TONG UNIV
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

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

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap