Self-Assembled Monolayers of a Malachite Green Derivative: Surfaces with pH- and UV-Responsive Wetting Properties

Authors

  • Yugui Jiang,

    1. Key Lab of Organic Optoelectronics and Molecular Engineering Department of Chemistry Tsinghua University Beijing 100084 (P.R. China)
    Search for more papers by this author
  • Pengbo Wan,

    1. Key Lab of Organic Optoelectronics and Molecular Engineering Department of Chemistry Tsinghua University Beijing 100084 (P.R. China)
    Search for more papers by this author
  • Mario Smet,

    1. Department of Chemistry University of Leuven Celestijnenlaan 200F Box 2404, 3001 Leuven (Belgium)
    Search for more papers by this author
  • Zhiqiang Wang,

    1. Key Lab of Organic Optoelectronics and Molecular Engineering Department of Chemistry Tsinghua University Beijing 100084 (P.R. China)
    Search for more papers by this author
  • Xi Zhang

    Corresponding author
    1. Key Lab of Organic Optoelectronics and Molecular Engineering Department of Chemistry Tsinghua University Beijing 100084 (P.R. China)
    • Key Lab of Organic Optoelectronics and Molecular Engineering Department of Chemistry Tsinghua University Beijing 100084 (P.R. China).
    Search for more papers by this author

  • The authors thank the National Basic Research Program of China (2007CB808000), and the National Natural Science Foundation of China (20473045, and 20334010) for financial support. M.S. thanks the F.W.O. Vlaanderen for a postdoctoral fellowship. Supporting Information is available online from Wiley InterScience or from the authors.

Abstract

original image

Surfaces that respond to pH and UV stimuli are fabricated from self-assembled monolayers (SAMs) of a malachite green derivative on a rough surface (see figure). The wetting properties of the SAMs exhibit an uncommon response to pH and UV illumination, and range from superhydrophobicity to superhydrophilicity.

Ancillary