Article Title

Micropatterning of superhydrophobic silicone nanofilaments by a near-ultraviolet Nd:YAG laser

Authors

Ana Stojanovic, Institute of Physical Chemistry, University of Zurich, Winterthurerstrasse 190, 8057 Zürich, Switzerland
Georg R. J. Artus, Institute of Physical Chemistry, University of Zurich, Winterthurerstrasse 190, 8057 Zürich, Switzerland
Stefan Seeger, Institute of Physical Chemistry, University of Zurich, Winterthurerstrasse 190, 8057 Zürich, Switzerland

Keywords

Superhydrophobic, ultraviolet (UV) laser ablation, wettability, open channels

Abstract

We demonstrate that a recently developed coating composed of superhydrophobic silicone nanofilaments can be selectively functionalized to yield well defined micron-scale patterns of contrasting wettabilities (superhydrophobic/hydrophilic and amphiphobic/amphiphilic). Nanofilament ablation was performed using a near-ultraviolet (UV) laser with a wavelength of 355 nm and a repetition rate of 10 kHz. This is a highly promising approach for open channel microfluidics and microarray analysis due to its simplicity, the chemical and environmental stability of the coating, and the low cost.

Graphical Abstract

DOI

https://doi.org/10.1007/s12274-010-0062-0

Publisher

Tsinghua University Press

Recommended Citation

Ana Stojanovic,Georg R. J. Artus,Stefan Seeger, Micropatterning of superhydrophobic silicone nanofilaments by a near-ultraviolet Nd:YAG laser. NanoRes.2010, 3(12): 889–894