{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,6,19]],"date-time":"2026-06-19T02:04:15Z","timestamp":1781834655608,"version":"3.54.5"},"reference-count":38,"publisher":"MDPI AG","issue":"3","license":[{"start":{"date-parts":[[2022,1,31]],"date-time":"2022-01-31T00:00:00Z","timestamp":1643587200000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"funder":[{"name":"Romanian Ministry of Research and Innovation","award":["NUCLEU project PN 19 15 01 01\/2019"],"award-info":[{"award-number":["NUCLEU project PN 19 15 01 01\/2019"]}]}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Polymers"],"abstract":"<jats:p>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.<\/jats:p>","DOI":"10.3390\/polym14030582","type":"journal-article","created":{"date-parts":[[2022,2,1]],"date-time":"2022-02-01T22:16:18Z","timestamp":1643753778000},"page":"582","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":36,"title":["The Effects of Electron Beam Irradiation on the Morphological and Physicochemical Properties of Magnesium-Doped Hydroxyapatite\/Chitosan Composite Coatings"],"prefix":"10.3390","volume":"14","author":[{"ORCID":"https:\/\/orcid.org\/0000-0002-4102-635X","authenticated-orcid":false,"given":"Bogdan","family":"Bita","sequence":"first","affiliation":[{"name":"National Institute for Laser, Plasma and Radiation Physics, 409 Atomistilor Street, Magurele, 077125 Bucharest, Romania"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-8125-9238","authenticated-orcid":false,"given":"Elena","family":"Stancu","sequence":"additional","affiliation":[{"name":"National Institute for Laser, Plasma and Radiation Physics, 409 Atomistilor Street, Magurele, 077125 Bucharest, Romania"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Daniela","family":"Stroe","sequence":"additional","affiliation":[{"name":"Radiotherapy Department, Coltea Clinical Hospital, Ion C. Bratianu 1 Street, 030171 Bucharest, Romania"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Mirabela","family":"Dumitrache","sequence":"additional","affiliation":[{"name":"Radiotherapy Department, Coltea Clinical Hospital, Ion C. Bratianu 1 Street, 030171 Bucharest, Romania"},{"name":"Faculty of Physics, University of Bucharest, 077125 Magurele, Romania"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Steluta Carmen","family":"Ciobanu","sequence":"additional","affiliation":[{"name":"National Institute of Materials Physics, Atomistilor Street, No. 405A, 077125 Magurele, Romania"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-9139-5903","authenticated-orcid":false,"given":"Simona Liliana","family":"Iconaru","sequence":"additional","affiliation":[{"name":"National Institute of Materials Physics, Atomistilor Street, No. 405A, 077125 Magurele, Romania"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Daniela","family":"Predoi","sequence":"additional","affiliation":[{"name":"National Institute of Materials Physics, Atomistilor Street, No. 405A, 077125 Magurele, Romania"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Andreea","family":"Groza","sequence":"additional","affiliation":[{"name":"National Institute for Laser, Plasma and Radiation Physics, 409 Atomistilor Street, Magurele, 077125 Bucharest, Romania"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"1968","published-online":{"date-parts":[[2022,1,31]]},"reference":[{"key":"ref_1","doi-asserted-by":"crossref","first-page":"118179","DOI":"10.1016\/j.carbpol.2021.118179","article-title":"Fabrication and applications of bioactive chitosan-based organic-inorganic hybrid materials: A review","volume":"267","author":"Liu","year":"2021","journal-title":"Carbohydr. 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