One pot preparation of silver nanoparticles decorated TiO2 mesoporous microspheres with enhanced antibacterial activity
| Autor: | Jiaoning Tang, Yitao Pu, Yuemei Chen, Yuanming Deng, Su Yikun, Bijun Tang |
|---|---|
| Rok vydání: | 2016 |
| Předmět: |
Staphylococcus aureus
Silver Materials science Inorganic chemistry Metal Nanoparticles Bioengineering Microbial Sensitivity Tests 02 engineering and technology 010402 general chemistry 01 natural sciences Silver nanoparticle Biomaterials Hydrolysis Acetic acid chemistry.chemical_compound Minimum inhibitory concentration Escherichia coli Antibacterial agent Titanium Minimum bactericidal concentration 021001 nanoscience & nanotechnology Microspheres Anti-Bacterial Agents 0104 chemical sciences chemistry Mechanics of Materials Microscopy Electron Scanning Silver Nitrate 0210 nano-technology Mesoporous material Antibacterial activity Porosity Nuclear chemistry |
| Zdroj: | Materials Science and Engineering: C. 65:27-32 |
| ISSN: | 0928-4931 |
| DOI: | 10.1016/j.msec.2016.04.028 |
| Popis: | We report a simple "one-pot" solvothermal preparation of silver nanoparticles (Ag NPs) decorated mesoporous titania (TiO2) microspheres as an effective antibacterial agent. TBOT as Ti source was hydrolyzed and crystallized in media composed of acetic acid and ethanol, in which esterification catalyzed by TBOT occurred for in-situ "controlled water release". AgNO3 as Ag source was reduced by ethanol to form Ag NPs embedded in the TiO2 microspheres. The effect of AgNO3 and HAc on the morphology of Ag/TiO2 was investigated. The Ag/TiO2 with various Ag content showed excellent antibacterial activities with extremely low minimum inhibitory concentration (MIC) and minimum bactericidal concentration (MBC) against Escherichia coli and Staphylococcus aureus when compared with colloidal Ag NPs. |
| Databáze: | OpenAIRE |
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