Abstract
Any processing disturbances in laser surface texturing (LST) could compromise the resulting surface topography and thus their desired functional response. Disturbances such as focal plane offsets and beam incident angle variations are always present in LST processing of 3D parts and can affect the surface morphology. In this research the effects of these laser processing disturbances in producing laser induced surface structures (LIPSS) on CoCrMo alloy substrates were investigated. In particular, these two disturbances were considered as laser processing variables to determine their effects on functional responses of LIPSS treated surfaces, i.e. surface wettability and the proliferation of Saos-2
osteoblast-like cells were evaluated. It was found that the changes of laser processing conditions led to a decrease in surface wettability and Saos-2 cells proliferation. In addition, a correlation between surface wettability and cell proliferation on LIPSS treated surface was identified and conclusions made about the effects of investigated process disturbances on the functional response of LIPSS treated CoCrMo substrates.
osteoblast-like cells were evaluated. It was found that the changes of laser processing conditions led to a decrease in surface wettability and Saos-2 cells proliferation. In addition, a correlation between surface wettability and cell proliferation on LIPSS treated surface was identified and conclusions made about the effects of investigated process disturbances on the functional response of LIPSS treated CoCrMo substrates.
| Original language | English |
|---|---|
| Pages (from-to) | 67-78 |
| Number of pages | 12 |
| Journal | Advanced Optical Technologies |
| Volume | 9 |
| Issue number | 1-2 |
| Early online date | 14 Nov 2019 |
| DOIs | |
| Publication status | Published - 1 Feb 2020 |
Bibliographical note
Funding Information:The research was supported by two European Commission H2020 projects, the ITN programme ‘European ESRs Network on Short Pulsed Laser Micro/Nanostructuring of Surfaces for Improved Functional Applications’ (Laser4Fun) and the FoF programme ‘High-Impact Injection Moulding Platform for mass-production of 3D and/or large micro-structured surfaces with Antimicrobial, Self-cleaning, Anti-scratch, Anti-squeak and Aesthetic functionalities’ (HIMALAIA). In addition, the work was carried out within the framework of the UKIERI DST programme ‘Surface functionalisation for food, packaging, and healthcare applications’. Author Contributions A. Batal Main author, conducted the laser experiments and functional tests. A. Michalek Assisted with LIPSS optimization and characterization. A. Garcia-Giron Assisted with sample preparation and wettability analysis. V. Nasrollahi Assisted with SEM imaging. P. Penchev Assisted with laser machining setup and supervision. R. Sammons Supervision and proofreading. S. Dimov Supervision and proofreading.
Funding Information:
The research was supported by two European Commission H2020 projects, the ITN programme 'European ESRs Network on Short Pulsed Laser Micro/Nanostructuring of Surfaces for Improved Functional Applications' (Laser4Fun) and the FoF programme 'High-Impact Injection Moulding Platform for mass-production of 3D and/or large micro-structured surfaces with Antimicrobial, Self-cleaning, Anti-scratch, Anti-squeak and Aesthetic functionalities' (HIMALAIA). In addition, the work was carried out within the framework of the UKIERI DST programme 'Surface functionalisation for food, packaging, and healthcare applications'.
Publisher Copyright:
© 2020 THOSS Media & De Gruyter, Berlin/Boston 2020.
Keywords
- laser surface texturing
- surface functionalization
- laser induced periodic surface structures
- cobalt chrome molybdenum
- osseointegration
ASJC Scopus subject areas
- Electronic, Optical and Magnetic Materials
- Atomic and Molecular Physics, and Optics
- Instrumentation