Photobleaching-activated micropatterning on self-assembled monolayers

J Phys Condens Matter. 2010 May 19;22(19):194103. doi: 10.1088/0953-8984/22/19/194103. Epub 2010 Apr 26.

Abstract

Functional chemical micropatterns were fabricated by exploiting the photobleaching of dye-coupled species near methacrylate self-assembled monolayers. Using this approach we have demonstrated that multiple chemistries can be coupled to the monolayer using a standard fluorescence microscope. The surface bound functional groups remain active and patterns with feature sizes down to 3 µm can be readily achieved with excellent signal-to-noise ratio. Control over the ligand binding density was demonstrated to illustrate the convenient route provided by this platform for fabricating complex spatial gradients in ligand density.

MeSH terms

  • Light
  • Materials Testing
  • Methacrylates / chemistry*
  • Methacrylates / radiation effects*
  • Photobleaching*
  • Surface Properties

Substances

  • Methacrylates