Experimental characterization and theoretical investigation of Ce/Yb co-doped hydroxyapatites

Acar, Serdar; Kayğili, Ömer; Ateş, Tankut; Dorozhkin, Sergey V.; Ateş, Burhan; Köytepe, Süleyman; Ercan, Filiz; Kebiroglu, Hanifi; Hssain, Ala Hamd

doi:10.1016/j.matchemphys.2021.125444

Cited by 14 publications

(4 citation statements)

References 48 publications

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“…The σ values for all samples can be obtained from the slope of the β cos θ versus 4 sin θ E −1 presented in Figure 2 b. In order to compute the E values, the following relation was used [ 31 ]:

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Section: Resultsmentioning

confidence: 99%

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Effects of Yttrium Doping on Erbium-Based Hydroxyapatites: Theoretical and Experimental Study

et al. 2022

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This is the first investigation of yttrium (Y) and erbium (Er) co-doped hydroxyapatite (HAp) structures, conducted using theoretical and experimental procedures. By using a wet chemical method, the materials were synthesized by varying the concentration of Y amounts of 0.13, 0.26, 0.39, 0.52, 0.65, and 0.78 at.% every virtual 10 atoms of calcium, whereas Er was kept fixed at 0.39 at.%. Spectroscopic, thermal, and in vitro biocompatibility testing were performed on the generated samples. Theoretical calculations were carried out to compute the energy bandgap, density of states, and linear absorption coefficient. The effects of Y concentration on thermal, morphological, and structural parameters were investigated in detail. Raman and Infrared (FTIR) spectroscopies confirmed the formation of the HAp structure in the samples. Theoretical investigations indicated that the increasing amount of Y increased the density from 3.1724 g cm−3 to 3.1824 g cm−3 and decreased the bandgap energy from 4.196 eV to 4.156 eV, except for the sample containing 0.39 at. % of the dopant, which exhibited a decrease in the bandgap. The values of linear absorption appeared reduced with an increase in photon energy. The samples exhibited cell viability higher than 110%, which revealed excellent biocompatibility for biological applications of the prepared samples.

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…”

Section: Resultsmentioning

confidence: 99%

“…The computed values of band structure and density of states of the materials were reported elsewhere [ 31 ]. This section sheds light on some of the reported data for the sake of completeness and overview.…”

Section: Resultsmentioning

confidence: 99%

Effects of Yttrium Doping on Erbium-Based Hydroxyapatites: Theoretical and Experimental Study

et al. 2022

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“…For example, a Yb 3+ content over 0.56 at. % can reduce the viability of L929 cells to below 76% after only 24 h of incubation [ 107 ].…”

Section: Biological Role Of Hap and Its Substitution Ionsmentioning

confidence: 99%

Lanthanides-Substituted Hydroxyapatite for Biomedical Applications

Lama-Odría

Valle

Puiggalı́

2023

IJMS

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Lately, there has been an increasing demand for materials that could improve tissue regenerative therapies and provide antimicrobial effects. Similarly, there is a growing need to develop or modify biomaterials for the diagnosis and treatment of different pathologies. In this scenario, hydroxyapatite (HAp) appears as a bioceramic with extended functionalities. Nevertheless, there are certain disadvantages related to the mechanical properties and lack of antimicrobial capacity. To circumvent them, the doping of HAp with a variety of cationic ions is emerging as a good alterative due to the different biological roles of each ion. Among many elements, lanthanides are understudied despite their great potential in the biomedical field. For this reason, the present review focuses on the biological benefits of lanthanides and how their incorporation into HAp can alter its morphology and physical properties. A comprehensive section of the applications of lanthanides-substituted HAp nanoparticles (HAp NPs) is presented to unveil the potential biomedical uses of these systems. Finally, the need to study the tolerable and non-toxic percentages of substitution with these elements is highlighted.

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“…The synthesizing of HAp using the dopant(s) can have some advantages or disadvantages compared to its pure form. Usually, a high amount of the dopant(s) does not prefer since it may cause some adverse conditions, such as toxicity in the HAp structure [12][13][14]. To avoid this situation, a low amount of the dopant of Ni was used in the present study.…”

Section: Introductionmentioning

confidence: 99%

The effects of duration of ultrasonication on the morphology and structural properties of Ni-doped hydroxyapatite structure

Ateş

Keser

Bulut

et al. 2022

Journal of Physical Chemistry and Functional Materials

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This work aims to explain the effects of sonication periods, ranging from 0 to 4 h with a step of 1 h, on the morphology and structural properties of Ni-doped hydroxyapatites at a constant amount of 0.4 at.%. The lattice parameters, crystallinity, and crystallite size were affected by the sonication time. Among the sonicated samples, it was observed that the increasing sonication period reduced the c/a ratio. It was also found that the morphology was affected by the ultrasonication duration.

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Experimental characterization and theoretical investigation of Ce/Yb co-doped hydroxyapatites

Cited by 14 publications

References 48 publications

Effects of Yttrium Doping on Erbium-Based Hydroxyapatites: Theoretical and Experimental Study

Effects of Yttrium Doping on Erbium-Based Hydroxyapatites: Theoretical and Experimental Study

Lanthanides-Substituted Hydroxyapatite for Biomedical Applications

The effects of duration of ultrasonication on the morphology and structural properties of Ni-doped hydroxyapatite structure

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