Micropatterning of superhydrophobic silicone nanofilaments by a near-ultraviolet Nd:YAG laser
Superhydrophobic, ultraviolet (UV) laser ablation, wettability, open channels
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.
Tsinghua University Press
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