Acta Phys. -Chim. Sin. ›› 2017, Vol. 33 ›› Issue (8): 1644-1654.doi: 10.3866/PKU.WHXB201704272

• ARTICLE • Previous Articles     Next Articles

Study of Interactions between 3, 4-Dihydroxyphenylalanine and Surfaces with Nano-, Micro-and Hierarchical Structures Using Colloidal Probe Technology

Wei ZHANG1,Yu SU1,*(),Fang-Hui LIU2,Hui YANG2,*(),Jin-Ben WANG2,*()   

  1. 1 School of Chemistry and Materials Science, Heilongjiang University, Harbin 150080, P. R. China
    2 Key Laboratory of Colloid, Interface and Chemical Thermodynamics, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, P. R. China
  • Received:2017-03-03 Published:2017-06-14
  • Contact: Yu SU,Hui YANG,Jin-Ben WANG E-mail:suyu-0451@163.com;yanghui@iccas.ac.cn;jbwang@iccas.ac.cn
  • Supported by:
    the National Natural Science Foundation of China(21603240)

Abstract:

Nanostructured surfaces similar to those found in nasturtium leaf waxes were prepared by organic vapor deposition on a silicon wafer, with a range of crystal densities. The nanostructured surface consisting of 200 nm thick nonacosane showed the lowest adhesion. Bionic shark skin-like surfaces with different heights were prepared by reactive ion etching. Surfaces with a hierarchical structure were prepared by organic vapor deposition on the bionic shark skin with a thickness of 200 nm. 3, 4-dihydroxyphenylalanine (DOPA) showed lower adhesion on the hierarchical structures as compared to the nanostructured surfaces, indicating that the surfaces with a hierarchical structure were strongly anti-adhesive and hydrophobic, with excellent resistance to water adhesion.

Key words: DOPA, Hierarchical structure, Colloidal probe, Anti-adhesion

MSC2000: 

  • O647