Acta Chimica Sinica ›› 2003, Vol. 61 ›› Issue (12): 2013-2015. Previous Articles     Next Articles

Original Articles



  1. 中国科学院兰州化学物理研究所;河南大学
  • 出版日期:2003-12-15 发布日期:2003-12-15

Studies on Interfacial Properties of DNA Langmuir Monolayers at Air/Water Interface and Structural Properties of DNA LB Films

Dai Shuxi;Zhang Xingtang;Du Zuliang;Dang Hongxin   

  1. State Key Laboratory of Solid Lubrication, Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences;Key Laboratory of Special Functional Materials, Henan University
  • Online:2003-12-15 Published:2003-12-15

Interfacial properties and organization process of DNA/octadecylamine (ODA) mixed Langmuir monolayers at die air/water interface were investigated. The morphology and structure of transferred DNA/ODA mixed LB film were observed using AFM. It was found that fractal domains appeared in the mixed films at low surface pressure. At higher pressure, the domain changed from network structure to aggregated clusters. Several kinds of DNA LB films with patterned surfaces and specific structures were prepared. It provides a good template for the fabrication of complex nanoscale devices.

Key words: octadecylamine, DNA, PHASE TRANSFORMATION, AFM, Langmuir-Blodgett FILMS

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