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Article

The Effects of Electron Beam Irradiation on the Morphological and Physicochemical Properties of Magnesium-Doped Hydroxyapatite/Chitosan Composite Coatings

1
National Institute for Laser, Plasma and Radiation Physics, 409 Atomistilor Street, Magurele, 077125 Bucharest, Romania
2
Radiotherapy Department, Coltea Clinical Hospital, Ion C. Bratianu 1 Street, 030171 Bucharest, Romania
3
Faculty of Physics, University of Bucharest, 077125 Magurele, Romania
4
National Institute of Materials Physics, Atomistilor Street, No. 405A, 077125 Magurele, Romania
*
Author to whom correspondence should be addressed.
Academic Editor: Paola Scarfato
Polymers 2022, 14(3), 582; https://doi.org/10.3390/polym14030582
Received: 20 December 2021 / Revised: 19 January 2022 / Accepted: 28 January 2022 / Published: 31 January 2022
(This article belongs to the Special Issue Advances in Polymer Based Composite Coatings II)
This work reports on the influence of 5 MeV electron beam radiations on the morphological features and chemical structure of magnesium-doped hydroxyapatite/chitosan composite coatings generated by the magnetron sputtering technique. The exposure to ionizing radiation in a linear electron accelerator dedicated to medical use has been performed in a controllable manner by delivering up to 50 Gy radiation dose in fractions of 2 Gy radiation dose per 40 s. After the irradiation with electron beams, the surface of layers became nano-size structured. The partial detachment of irradiated layers from the substrates has been revealed only after visualizing their cross sections by scanning electron microscopy. The energy dispersive X-ray spectral analysis of layer cross-sections indicated that the distribution of chemical elements in the samples depends on the radiation dose. The X-ray photoelectron spectroscopy, Fourier transform infrared spectroscopy and X-ray diffraction analysis have shown that the physicochemical processes induced by the ionizing radiation in the magnesium doped hydroxyapatite/chitosan composite coatings do not alter the apatite structure, and Mg remains bonded with the phosphate groups. View Full-Text
Keywords: magnesium-doped hydroxyapatite/chitosan composite coatings; magnetron sputtering technique; electron beam irradiations magnesium-doped hydroxyapatite/chitosan composite coatings; magnetron sputtering technique; electron beam irradiations
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MDPI and ACS Style

Bita, B.; Stancu, E.; Stroe, D.; Dumitrache, M.; Ciobanu, S.C.; Iconaru, S.L.; Predoi, D.; Groza, A. The Effects of Electron Beam Irradiation on the Morphological and Physicochemical Properties of Magnesium-Doped Hydroxyapatite/Chitosan Composite Coatings. Polymers 2022, 14, 582. https://doi.org/10.3390/polym14030582

AMA Style

Bita B, Stancu E, Stroe D, Dumitrache M, Ciobanu SC, Iconaru SL, Predoi D, Groza A. The Effects of Electron Beam Irradiation on the Morphological and Physicochemical Properties of Magnesium-Doped Hydroxyapatite/Chitosan Composite Coatings. Polymers. 2022; 14(3):582. https://doi.org/10.3390/polym14030582

Chicago/Turabian Style

Bita, Bogdan, Elena Stancu, Daniela Stroe, Mirabela Dumitrache, Steluta Carmen Ciobanu, Simona Liliana Iconaru, Daniela Predoi, and Andreea Groza. 2022. "The Effects of Electron Beam Irradiation on the Morphological and Physicochemical Properties of Magnesium-Doped Hydroxyapatite/Chitosan Composite Coatings" Polymers 14, no. 3: 582. https://doi.org/10.3390/polym14030582

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