Structural, spectroscopic, dielectric, and magnetic properties of Fe/Cu co-doped hydroxyapatites prepared by a wet-chemical method

Ercan, I.; Kayğili, Ömer; Kayed, Tarek S.; Tombuloğlu, Hüseyin; İnce, Turan; Ahmari, Fatımah Al; Kebiroglu, Hanifi; Ateş, Tankut; Almofleh, Atheel; Firdolas, Fatih; Köysal, Oğuz; Al-Suhaimi, Ebtesam A.; Ghrib, Taher; Sözeri, H.; Yıldız, Mesut; Ercan, Filiz

doi:10.1016/j.physb.2021.413486

Cited by 17 publications

(17 citation statements)

References 58 publications

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“…The improved magnetic properties of the prepared nanocomposites have an important significance in bone replacement applications where they help in enhancing the rate of bone formation and considerably contribute to treating the bone fractures. 59 The values of both η β and K are recorded in Table IV. It showed that η β increases from 0.0025 to 2.196 due to the increasing of magnetic saturation while K decreases from 19635 to 210.33 and then increasing to 991.799 erg g −1 Antimicrobial properties.-Generally speaking, the implantation of biomaterials into the human body results in major difficulties that might be brought on by bacterial infections that develop during surgical procedures.…”

Section: Resultsmentioning

confidence: 99%

Magnetic and Dielectric Properties of Hybrid Nanocomposites of Biologically Extracted Hydroxyapatite/Hematite/Silicon Dioxide for Potential Use in Bone Replacement Applications

Alturki,

Alatawi,

Abulyazied

et al. 2023

ECS J. Solid State Sci. Technol.

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Hydroxyapatite (HA) is an attractive biomaterial for use in orthopedic and dental applications. Acquiring HA from natural sources is an excellent step toward doing so affordably while also reducing waste. Here, HA was obtained from camel bones and then mixed in different proportions with silicon dioxide (SiO2) and hematite (α-Fe2O3) to obtain nanocomposites with distinct physical, tribo-mechanical, electrical, magnetic, and biological properties. The produced powders were then examined by scanning electron microscopy and X-ray diffraction techniques. Additionally, measurements were made of their dielectric, physical, tribo-mechanical, magnetic, and antimicrobial properties. The results revealed that successive addition of SiO2 and α-Fe2O3 reduced the porosity of the tested samples by about 3.26, 19.56, 33.69, and 51.08% which is very close to the porosity value of cortical bone. Importantly, the compressive strength of the sample with the highest percentages of SiO2 and α-Fe2O3 was 102 MPa making it similar to that of cortical bone. Also, the addition of SiO2 and α-Fe2O3 to BHA reduced its wear rate by 0.47, 13.09, 15.47, and 21.90%. Furthermore, the presence of Fe2O3 improved the magnetic and antimicrobial properties of the tested samples. The latter findings could be useful for accelerating bone healing.

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Section: Resultsmentioning

confidence: 99%

Magnetic and Dielectric Properties of Hybrid Nanocomposites of Biologically Extracted Hydroxyapatite/Hematite/Silicon Dioxide for Potential Use in Bone Replacement Applications

Alturki,

Alatawi,

Abulyazied

et al. 2023

ECS J. Solid State Sci. Technol.

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“…Impedance analysis precisely indicates the process of dielectric relaxation inside an ionic material after the application of a varying electric field [85]. Thus, studies on impedance spectra consider the interaction of an external electric field with the permeability and electric dipole moment of a specific probe [170].…”

Section: Impedancementioning

confidence: 99%

The Effect of Doping on the Electrical and Dielectric Properties of Hydroxyapatite for Medical Applications: From Powders to Thin Films

Duta,

Grumezescu

2024

Materials

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Recently, the favorable electrical properties of biomaterials have been acknowledged as crucial for various medical applications, including both bone healing and growth processes. This review will specifically concentrate on calcium phosphate (CaP)-based bioceramics, with a notable emphasis on hydroxyapatite (HA), among the diverse range of synthetic biomaterials. HA is currently the subject of extensive research in the medical field, particularly in dentistry and orthopedics. The existing literature encompasses numerous studies exploring the physical–chemical, mechanical, and biological properties of HA-based materials produced in various forms (i.e., powders, pellets, and/or thin films) using various physical and chemical vapor deposition techniques. In comparison, there is a relative scarcity of research on the electrical and dielectric properties of HA, which have been demonstrated to be essential for understanding dipole polarization and surface charge. It is noteworthy that these electrical and dielectric properties also offer valuable insights into the structure and functioning of biological tissues and cells. In this respect, electrical impedance studies on living tissues have been performed to assess the condition of cell membranes and estimate cell shape and size. The need to fill the gap and correlate the physical–chemical, mechanical, and biological characteristics with the electrical and dielectric properties could represent a step forward in providing new avenues for the development of the next-generation of high-performance HA-doped biomaterials for future top medical applications. Therefore, this review focuses on the electrical and dielectric properties of HA-based biomaterials, covering a range from powders and pellets to thin films, with a particular emphasis on the impact of the various dopants used. Therefore, it will be revealed that each dopant possesses unique properties capable of enhancing the overall characteristics of the produced structures. Considering that the electrical and dielectric properties of HA-based biomaterials have not been extensively explored thus far, the aim of this review is to compile and thoroughly discuss the latest research findings in the field, with special attention given to biomedical applications.

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“…where α is the absorption coefficient, h is Planck's constant, ν corresponds to the frequency of radiation, E g is the band gap energy, and n can assume a value of 1 2 or 2, for the cases of direct and for indirect transitions, respectively [37]. For HAp, the transition is assumed to be indirectly [38].…”

Section: Characterizationmentioning

confidence: 99%

Gallium-Containing Hydroxyapatite as a Promising Material for Photocatalytic Performance

Rocha

Silva²,

Araújo³

et al. 2021

Minerals

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The development of photocatalystsor their modification to obtain new photocatalytic performances for the removal of contaminants is a challenge. Hydroxyapatite (HAp), (Ca10(PO4)6(OH)2), is an inorganic component with a high superficial area and low toxicity and the presence of metal in its structure can be an interesting strategy for the photocatalytic approach. This work aimed to synthesize gallium-containing HAp (Ga-HAp) as a promising material for photocatalytic performance. The synthesis was performed by the suspension–precipitation method. The material was characterized by X-ray diffraction (XRD) and X-ray photoelectron spectroscopy (XPS). Morphological analysis employed field emission scanning electron microscope (FESEM) and the elemental analysis by energy-dispersive spectroscopy (EDS). To evaluate the photocatalytic activity, methylene blue (MB) dye was used as a pollutant model under UV light for 120 min. The influence of Ga-HAp concentration (0.25, 0.50, and 1.00 g·L−1) and kinetic reaction was also studied. The Ga-HAp was successfully obtained by the suspension–precipitation method. The structural characterization by XRD and FESEM-EDS elucidated the presence of gallium in the structure of hydroxyapatite. The XPS results indicated the substitution of gallium in the crystal lattice of the material. The discoloration rate of MB dye using Ga-Hap was calculated by pseudo first-order kinetics, and the best rate constant was 7.5 × 10−3 min−1 using 1.00 g·L−1 of photocatalyst. The concentration of Ga-HAp influenced the photocatalytic process, because the discoloration rate increased as a function of the concentration of material. Therefore, Ga-HAp is a promising material for environmental remediation.

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Structural, spectroscopic, dielectric, and magnetic properties of Fe/Cu co-doped hydroxyapatites prepared by a wet-chemical method

Cited by 17 publications

References 58 publications

Magnetic and Dielectric Properties of Hybrid Nanocomposites of Biologically Extracted Hydroxyapatite/Hematite/Silicon Dioxide for Potential Use in Bone Replacement Applications

Magnetic and Dielectric Properties of Hybrid Nanocomposites of Biologically Extracted Hydroxyapatite/Hematite/Silicon Dioxide for Potential Use in Bone Replacement Applications

The Effect of Doping on the Electrical and Dielectric Properties of Hydroxyapatite for Medical Applications: From Powders to Thin Films

Gallium-Containing Hydroxyapatite as a Promising Material for Photocatalytic Performance

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