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S. Arthanari et al.
Fig. 3 a Schematic representation of laser micro/nano textures fabricated on Ti64 alloys [55].
b Laser processed micro and micro/nano grit patterns on Ti [4]. c Representation of LIPSS fabricated
on Ta and Ti64 alloy [56]
about 200 nm. The hybrid micro/nano grid patterns were produced by superimposing
the conditions used for micron and nano topographies. The human mesenchymal stem
cells (hMSCs) adhesion, anchoring, and spreading were improved on the micronsized surface, while the cell locomotion was visualized, and promoted the osteogenic
differentiation on the nano grid topography. Interestingly, hybrid grid topography
promoted cell adhesion on the surface.
Laser surface texturing of Ti64 alloy, and pure Tantalum was carried out using a
Yb: KYW femtosecond laser at a wavelength of 1030 nm [56]. LIPSS was formed
with periods of 780 ± 48 and 787 ± 31 nm on Tantalum and Ti64 alloys, respectively.
Further, the depth of the LIPSS on Tantalum and Ti64 was about 256 ± 7 and 250
± 12 nm, respectively (Fig. 3c). The ripples were observed on the Tantalum and
10-30 nm diameter nanoparticles/nano pits were also noticed on the ripples was
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