Synthesis and Antibacterial Effect Against Escherichia coli of TiO<sub>2</sub>:C Composite Film Deposited on Titanium

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Synthesis and Antibacterial Effect Against Escherichia coli of TiO₂:C Composite Film Deposited on Titanium

更新时间：2023-12-11

- Synthesis and Antibacterial Effect Against Escherichia coli of TiO₂:C Composite Film Deposited on Titanium
- Acta Scientiarum Naturalium Universitatis SunYatseni Vol. 50, Issue 6, Pages: 82-87(2011)
- 作者机构：
  
  1. ．中山大学光华口腔医学院//附属口腔医院//口腔研究所,广东,广州,510055
  2. 2．广东省口腔医院正畸科,广东,广州,510280
- 作者简介：
- 基金信息：
- DOI：
  CLC：
- Published：2011，
  
  Published Online：25 November 2011，
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Synthesis and Antibacterial Effect Against Escherichia coli of TiO₂:C Composite Film Deposited on Titanium. [J]. Acta Scientiarum Naturalium Universitatis SunYatseni 50(6):82-87(2011)
DOI：

Synthesis and Antibacterial Effect Against Escherichia coli of TiO₂:C Composite Film Deposited on Titanium. [J]. Acta Scientiarum Naturalium Universitatis SunYatseni 50(6):82-87(2011) DOI：

摘要

利用溶胶-凝胶法在纯钛片表面沉积纳米TiO

:C薄膜涂层，采用X射线光电子能谱分析纳米TiO

:C薄膜的化学成分。根据qbt2591-2003国家工业标准测试纳米TiO

:C薄膜对大肠杆菌的抗菌性能，同时通过透射电子显微镜观察细菌被杀灭的超微结构变化过程，分析其抗菌机理。结果表明，在TiO

:C薄膜中C进入锐钛矿型TiO

晶格内并取代Ti或O的位置从而形成O-Ti-C键合，进而抑制TiO

相变。试样对大肠杆菌20 min可见光催化抗菌率均达到90%以上，具有良好的抗菌效果。其杀灭细菌的超微结构变化表明其主要作用于细菌的细胞壁，引起胞壁穿孔，细胞胀大，细胞内容物外溢，直至细菌完全解体。

Abstract

Undoped and Cdoped TiO

films have been prepared by sol-gel process. The chemical components of the TiO

:C composite thin film were characterized using X-ray Photoelectron Spectroscopy（XPS）. The antibacterial efficacy of the TiO

:C composite film was tested by film applicator coating method. Antibacterial mechanism of TiO

:C composite film was discussed by transmission electron microscope（TEM）. It has been observed that C dopants retard the transformation from anatase to rutile phase. Namely

C doping effect is attributed to the anatase phase stabilization. More than 90% of bacterium were killed within 20 minutes which confirm fine antibacterial effect of the film.When studying the ultrastructure changes as the antibacterial material of TiO

:C thin film against Escherichia coli，the work indicated that the antibacterial particles of TiO

:C thin film may produce active oxides which contact the Escherichia coli cell and damage even penetrate the cells wall and plasmolemma to enter into the core to make cytoplasm agglomerate and thus cause the cells dead.

关键词

溶胶-凝胶法钛表面二氧化钛抗菌效果

Keywords

sol-gel processpure titanium surfacetitanium dioxideantibacterial effect

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Guanghua College of Stomatology//Institute of Stomatology，Sun Yatsen University

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School of Chemistry and Chemical Engineering，Sun Yat-sen University

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Synthesis and Antibacterial Effect Against Escherichia coli of TiO2:C Composite Film Deposited on Titanium

DOI：

摘要

Abstract

关键词

Keywords

references

Synthesis and Antibacterial Effect Against Escherichia coli of TiO₂:C Composite Film Deposited on Titanium