高等学校化学学报 ›› 2010, Vol. 31 ›› Issue (1): 30.

• 研究快报 • 上一篇    下一篇

具有多级复合孔TiO2薄膜的合成及吸附DNA的性能

邹永存, 陆凤国, 李国栋   

  1. 吉林大学无机合成与制备化学国家重点实验室, 长春 130023
  • 收稿日期:2009-09-03 出版日期:2010-01-10 发布日期:2010-01-10
  • 通讯作者: 李国栋, 男, 博士, 教授, 主要从事多孔材料的合成、组装及光电性质研究. E-mail: lgd@jlu.edu.cn
  • 基金资助:

    国家“九七三”计划项目(批准号: 2007CB613303)资助.

Synthesis and DNA Adsorption Properties of Hierarchically Macro-mesoporous Titania Films

ZOU Yong-Cun, LU Feng-Guo, LI Guo-Dong*   

  1. State Key Laboratory of Inorganic Synthesis & Preparative Chemistry, Jilin University, Changchun 130012, China
  • Received:2009-09-03 Online:2010-01-10 Published:2010-01-10
  • Contact: LI Guo-Dong. E-mail: lgd@jlu.edu.cn
  • Supported by:

    国家“九七三”计划项目(批准号: 2007CB613303)资助.

摘要:

本文以高分子聚合物(F127)为模板, 以强疏水的1,3,5-三甲基苯为有机添加物, 通过旋转覆膜的方法制备出具有多级复合孔的二氧化钛晶体薄膜, 并采用TEM和SEM对样品结构进行了分析, 同时考察了这种薄膜对DNA分子的吸附性能.

关键词: TiO2薄膜; 有序介孔; 大孔介孔复合材料; DNA吸附

Abstract:

Titania thin films with hierarchically macro-mesoporous were prepared by the addition of bulky organic molecule(1,3,5-trimethylbezenze) in aqueous solution of F127(EO106PO70EO106). After calcined at 673 K, ordered thin films with cubic meso-structure and macropores were formed. DNA(Cytochrome c) was used as probe to study the adsorption ability of macromolecules on this film. The hierarchically macro-mesoporous films show high adsorption ability of DNA molecules compared with conventional titania films and mesoporous titania films, which is attributed to the presence of macropores.

Key words: Titania film; Ordered mesopore; Hierarchically macro-mesoporous; DNA adsorption

TrendMD: