Skip to Main content Skip to Navigation
Journal articles

Zinc Doped Hydroxyapatite Thin Films Prepared by Sol–Gel Spin Coating Procedure

Abstract : In this study, ZnHAp layers deposited on a Si substrate were obtained by a sol-gel spin-coating procedure. The ZnHAp solutions used to obtain the ZnHAp coatings were investigated by dynamic light scattering (DLS) analysis, ζ-potential, ultrasound measurements, and flame atomic absorption spectrometry (AAS). The average measured hydrodynamic diameter from the DLS analysis, ζ-potential, and ultrasound measurements were analyzed so as to characterize and estimate the stability of the ZnHAp nanoparticles. The AAS results confirmed the presence of zinc in the gels used in the preparation of the ZnHAp layers. The layers were investigated by X-ray diffraction (XRD) and scanning electron microscopy (SEM). The XRD results revealed the diffraction peaks of the hexagonal hydroxyapatite in all of the investigated samples. The morphology of the ZnHAp coatings annealed at 500 • C (ZnHAp-500) and 700 • C (ZnHAp-700), which evidenced that no fissures or cracks formed on the surface of the coatings. The biocompatibility assays indicated that the ZnHAp coatings did not present any toxicity towards the HeLa cells. Furthermore, the study regarding the cytotoxicity of the ZnHAp layers against microorganisms emphasized that ZnHAp coatings exhibited an inhibitory effect towards S. aureus bacterial cells and also towards C. albicans fungal cells.
Document type :
Journal articles
Complete list of metadata

Cited literature [58 references]  Display  Hide  Download
Contributor : Nathalie POTHIER Connect in order to contact the contributor
Submitted on : Wednesday, March 6, 2019 - 11:35:23 AM
Last modification on : Wednesday, August 3, 2022 - 4:04:34 AM
Long-term archiving on: : Friday, June 7, 2019 - 8:11:18 PM


Publisher files allowed on an open archive




Daniela Predoi, Simona Liliana Iconaru, Mihai Valentin Predoi, Nicolas Buton, Mikael Motelica-Heino. Zinc Doped Hydroxyapatite Thin Films Prepared by Sol–Gel Spin Coating Procedure. Coatings, MDPI, 2019, 9 (3), pp.156. ⟨10.3390/coatings9030156⟩. ⟨insu-02058905⟩



Record views


Files downloads