Chem. J. Chinese Universities ›› 2010, Vol. 31 ›› Issue (1): 30.

• Letters • Previous Articles     Next Articles

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.

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

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