Mechanical and light-activated antibacterial properties of resin filled with Ag-TiO2 nanoparticles.
10.7507/1001-5515.202112067
- Author:
Shiqi PAN
1
;
Shuxin LU
1
;
Ruoyu LI
1
;
Xiangyu ZHANG
1
;
Weiyi CHEN
2
Author Information
1. Shanxi Key Laboratory of Biomedical Metal Materials, College of Materials Science and Engineering, Taiyuan University of Technology, Taiyuan 030024, P. R. China.
2. College of Biomedical Engineering, Taiyuan University of Technology, Taiyuan 030024, P. R. China.
- Publication Type:Journal Article
- Keywords:
Biocompatibility;
Composite resin;
Light-controlled antibacterial;
Mechanical property
- MeSH:
Anti-Bacterial Agents/pharmacology*;
Composite Resins;
Metal Nanoparticles/chemistry*;
Nanoparticles;
Titanium/pharmacology*
- From:
Journal of Biomedical Engineering
2022;39(4):749-758
- CountryChina
- Language:Chinese
-
Abstract:
The poor mechanical property and vulnerability to bacterial infections are the main problems in clinic for dental restoration resins. Based on this problem, the purpose of this study is to synthesize silver-titanium dioxide (Ag-TiO2) nanoparticles with good photocatalytic properties, and add them to the composite resin to improve the mechanical properties and photocatalytic antibacterial capability of the resin. The microstructure and chemical composition of Ag-TiO2 nanoparticles and composite resins were characterized. The results indicated that Ag existed in both metallic and silver oxide state in the Ag-TiO2, and Ag-TiO2 nanoparticles were uniformly dispersed in the resins. The results of mechanical experiments suggested that the mechanical properties of the composite resin were significantly improved due to the incorporation of Ag-TiO2 nanoparticles. The antibacterial results indicated that the Ag-TiO2 nanoparticle-filled composite resins exhibited excellent antibacterial activities under 660 nm light irradiation for 10 min due to the photocatalysis, and the Ag-TiO2 nanoparticle-filled composite resins could also exhibit excellent antibacterial activities after contact with bacteria for 24 h without light irradiation because of the release of Ag ions. In summary, this study provides a new antibacterial idea for the field of dental composite resins.
