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Laser fabrication of structural bone: surface morphology and biomineralization assessment
Sucharita Banerjee1, Mangesh V Pantawane1, Narendra B Dahotre2
1Laboratory for Laser Aided Additive and Subtractive Manufacturing, Virtual Center for Advanced Orthopedics, Department of Materials Science and Engineering, University of North Texas, 1155 Union Circle-305310, Denton, TX, 76203-5017, USA.
Abstract:
The current work explores the surface morphology of the laser-ablated bone using Yb-fiber coupled Nd:YAG laser (λ = 1064 nm) in continuous wave mode. As the laser-ablated region contains physiochemically modified carbonized and nonstructural region, it becomes unknown material for the body. Thus, biomineralization on such a laser-ablated region was assessed by in vitro immersion test in noncellular simulated body fluid. The presence of hydroxyapatite was detected in the precipitated mineral product using scanning electron microscopy equipped with energy dispersive spectroscopy, and X-ray diffraction analysis. The effect of varying laser parameters on distribution of surface morphology features was identified and its corresponding effect on biomineralization was studied.
