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UNIVERSITY OF BUCHAREST
FACULTY OF PHYSICS Guest
2024-11-22 1:22 |
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Conference: Bucharest University Faculty of Physics 2015 Meeting
Section: Optics, Spectroscopy, Plasma and Lasers
Title:
The study of different solvents on the chemical and morphological characteristics of Hydroxyapatite coatings deposited by MAPLE
Authors:
N. L. DUMITRESCU(1,2), I. TIRCA(1,2), A. BONCIU(1,3), V. MARASCU(1,3), S. BRAJNICOV(1) , L. RUSEN(1), M. DINESCU(1) and V. DINCA(1)
Affiliation:
1 National Institute for Laser, Plasma and Radiation Physics, RO-077125 Magurele, Bucharest, Romania.
2 University of Craiova, Faculty of Mathematics and Natural Sciences, RO-200585, Craiova, Romania.
3University of Bucharest, Faculty of Physics, RO-077125, Magurele, Bucharest, Romania
E-mail
ln_dumitrescu@yahoo.com
Keywords:
MAPLE, solvents, Hydroxyapatite
Abstract:
The study of different solvents on the chemical and morphological characteristics of Hydroxyapatite coatings deposited by MAPLE
N. L. Dumitrescu1,2, I. Tirca1,2, A. Bonciu1,3, V. Marascu1,3,S. Brajnicov1 , L. Rusen1, M. Dinescu1 and V. Dinca1,
1 National Institute for Laser, Plasma and Radiation Physics, RO-077125 Magurele, Bucharest, Romania,
2 University of Craiova, Faculty of Mathematics and Natural Sciences, RO-200585, Craiova, Romania
3University of Bucharest, Faculty of Physics, RO-077125, Magurele, Bucharest, Romania
ln_dumitrescu@yahoo.com
Abstract
Hydroxyapatite ( HA) is an essential ingredient of bone and is involved in osseointegration process, being a major inorganic component of bones. Its biological function can be improved by adjusting the morphological characteristics. In this paper the technique used was Matrix Assisted Pulsed Laser Evaporation (MAPLE) to obtain HA coatings on various substrates (e.g Si and Ti based alloys substrates).
The influence on the HA thin films morphology of various solvents or mixtures (e.g., Chloroform) , were studied and associated to laser deposition parameters.
In order to obtain the morphological investigations was used the Atomic Force Microscopy (AFM) and Scanning Electron Microscopy (SEM). Different measurements were made, as contact angle measurements and FTIR measurements which were used for determining the chemical integrity and the wettability of the deposited coatings. Based on the results obtained, the optimal parameters regarding the laser processing and matrix composition were determined.
The preliminary results shows that similar bone microstructure can be obtained by mixing matrix characteristics with laser deposition parameters.
Keywords: MAPLE, Solvents, Hydroxyapatite (HA).
Acknowledgement:
Acknowledgments: The research leading to these results has received funding from the Romanian Ministry of National Education, CNCS – UEFISCDI, under the project PN-II-PT-PCCA 239/2014
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