The medical stainless steel (SUS 304) surface is irradiated by femtosecond laser pulses with linear or circular polarization to form nanostructure-covered conical microstructures. The mean spacing of the conical microstructures and the type of the nanostructure can be controlled by the laser-processing parameters. The liquid test (water and normal-saline solution) demonstrates that the process provides a fast single-step structuring method to generate hydrophobic-enhanced metal parts. The biocompatibility test demonstrated that the femtosecond laser micro/nano- structuring surfaces have excellent biocompatibility properties compared to an untreated surface.
|Number of pages||8|
|State||Published - 1 Jan 2012|
|Event||7th International Conference on Laser Assisted Net Shape Engineering. LANE 2012 - Furth, Germany|
Duration: 12 Nov 2012 → 15 Nov 2012
- Femtosecond laser