Influence of Terbium Ions and Their Concentration on the Photoluminescence Properties of Hydroxyapatite for Biomedical Applications

A new generation of biomaterials with terbium-doped hydroxyapatite was obtained using a coprecipitation method. The synthesis of new materials with luminescent properties represents a challenging but important contribution due to their potential applications in biomedical science. The main objective...

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Bibliographic Details
Published in:Nanomaterials (Basel, Switzerland) Switzerland), 2021-09, Vol.11 (9), p.2442
Main Authors: Paduraru, Andrei Viorel, Oprea, Ovidiu, Musuc, Adina Magdalena, Vasile, Bogdan Stefan, Iordache, Florin, Andronescu, Ecaterina
Format: Article
Language:English
Subjects:
Antibiotics
Biocompatibility
biological system imaging
Biomaterials
Biomedical materials
coprecipitation method
Cytotoxicity
doped hydroxyapatite
Fluorescence
Fourier analysis
Fourier transforms
Hydroxyapatite
Infrared analysis
Infrared spectroscopy
Ion concentration
Ions
Luminescence
Microscopy
Morphology
Nanomaterials
Nanoparticles
Nanotechnology
Nitrates
Optical properties
Oxidative stress
Penicillin
Photoluminescence
Photons
rare earth ions
Reagents
Spectrometry
Terbium
Toxicity
X ray powder diffraction
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Summary:A new generation of biomaterials with terbium-doped hydroxyapatite was obtained using a coprecipitation method. The synthesis of new materials with luminescent properties represents a challenging but important contribution due to their potential applications in biomedical science. The main objective of this study was to revel the influence of terbium ions on the design and structure of hydroxyapatite. Different concentrations of terbium, described by the chemical formula Ca10−xTbx(PO4)6(OH)2, where x is in the range of 0 to 1, were considered. The consequence of ion concentration on hydroxyapatite morphology was also investigated. The morphology and structure, as well as the optical properties, of the obtained nanomaterials were characterized using X-ray powder diffraction analysis (XRD), Fourier Transform Infrared spectrometry (FTIR), SEM and TEM microscopy, UV-Vis and photoluminescence spectroscopies. The measurements revealed that terbium ions were integrated into the structure of hydroxyapatite within certain compositional limits. The biocompatibility and cytotoxicity of the obtained powders evaluated using MTT assay, oxidative stress assessment and fluorescent microscopy revealed the ability of the synthesized nanomaterials to be used for biological system imaging.
ISSN:2079-4991
2079-4991
DOI:10.3390/nano11092442