Surface structuring of β-TCP and transition to α-TCP induced by femtosecond laser processing
Aceti DM, Filipov E, Sotelo L, Fontanot T, Christiansen S, Lasgorceix M, Leriche A, Buchvarov I, Daskalova A (2023)
Publication Type: Conference contribution
Publication year: 2023
Publisher: Institute of Physics
Book Volume: 2487
Conference Proceedings Title: Journal of Physics: Conference Series
Event location: Virtual, Online
DOI: 10.1088/1742-6596/2487/1/012043
Abstract
Tricalcium phosphate (Ca3(PO4)2, TCP), is one of the most studied and used as material for bioresorbable implants. The β phase has a slower dissolution dynamic and ensures mechanical support for a longer time in biological environment, while a faster release of ions characterize the α phase that trigger a stronger biological response. In this work a femtosecond laser system was used to process β-TCP pellets surface. The femtosecond laser processing results in surface morphology modification, by turning the flat mirror polished surface into a rough and opaque one. The morphological and phisycochemical characteristics of material surface were studied by means of SEM, AFM, Raman, XRD and contact angle measurement. The processed surface showed the formation of micro and nano roughness alongside, furthermore a partial phase transformation from β-TCP to α-TCP was detected. A significant improvement in surface wettability for three different liquids (i.e.water, ethylene glycol and diiodo-methane) is reported. This implies an increase in surface free energy as well. The combination of α and β phase, together with the increased roughness obtained by laser processing, could positively affect the cell adhesion and metabolic activity.
Authors with CRIS profile
Involved external institutions
Institute of Electronics “Academician Emil Djakov” (BAS IE) / Институт по електроника "Академик Емил Джаков"
Bulgaria (BG)
Sofia University "St. Kliment Ohridski" / Софийски университет "Св. Климент Охридски"
Bulgaria (BG)
Fraunhofer-Institut für Keramische Technologien und Systeme (IKTS)
Germany (DE)
Université polytechnique des Hauts-de-France (UPHF, UVHC)
France (FR)
Bulgaria (BG)
Sofia University "St. Kliment Ohridski" / Софийски университет "Св. Климент Охридски"
Bulgaria (BG)
Fraunhofer-Institut für Keramische Technologien und Systeme (IKTS)
Germany (DE)
Université polytechnique des Hauts-de-France (UPHF, UVHC)
France (FR)
How to cite
APA:
Aceti, D.M., Filipov, E., Sotelo, L., Fontanot, T., Christiansen, S., Lasgorceix, M.,... Daskalova, A. (2023). Surface structuring of β-TCP and transition to α-TCP induced by femtosecond laser processing. In Journal of Physics: Conference Series. Virtual, Online: Institute of Physics.
MLA:
Aceti, D. M., et al. "Surface structuring of β-TCP and transition to α-TCP induced by femtosecond laser processing." Proceedings of the 22nd International Conference and School on Quantum Electronics, ICSQE 2022, Virtual, Online Institute of Physics, 2023.
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