Browsing by Author "Al-Buriahi M.S."

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    WS2/bioactive glass composites: Fabrication, structural, mechanical and radiation attenuation properties
    (Elsevier Ltd, 2021) Deliormanlı A.M.; Ensoylu M.; Issa S.A.M.; Elshami W.; Al-Baradi A.M.; Al-Buriahi M.S.; Tekin H.O.
    Ionizing radiation interaction might occur during diagnostic imaging and radiotherapy procedures. It has been reported that gamma-ray radiation can damage the living cells through the energy transfer. Therefore, investigation the ionization radiation attenuation properties of biomaterials have a crucial importance. In the current study, tungsten disulphide (WS2) nanopowder-containing borate-based bioactive glass composites were prepared. Their physical, structural, mechanical and ionization radiation attenuation properties were investigated in detail. Monte Carlo simulations and radiation attenuation properties were studied through MCNPX and Phy-X/PSD. Results showed that sintering performed at 575 °C for 1 h in air atmosphere caused formation of some tungsten trioxide in the structure. Addition of WS2 nanopowders increased the bulk density and improved the mechanical properties of the prepared bioactive glass composites. Simulation studies revealed the influence of WS2 content on reduction the build-up factors and enhancement of the photon attenuation ability for all the considered photon energies. © 2021 Elsevier Ltd and Techna Group S.r.l.
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    Correction to: 13-93B3 Bioactive glasses containing Ce3+, Ga3+ and V5+: dose rate and gamma radiation characteristic for medical purposes (Applied Physics A, (2021), 127, 3, (210), 10.1007/s00339-021-04376-1)
    (Springer Science and Business Media Deutschland GmbH, 2021) Deliormanlı A.M.; Al-Buriahi M.S.; Somaily H.H.; Tekin H.O.
    In the original publication of the article, the grant number in the Acknowledgements was incorrect. The correct Acknowledgements is as below. The authors gratefully thank the Deanship of Scientific Research at King Khalid University for financial support through research groups program under grant number (R.G.P2/98/41). © 2021, The Author(s), under exclusive licence to Springer-Verlag GmbH, DE part of Springer Nature.
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    Erbium (III)- and Terbium (III)-containing silicate-based bioactive glass powders: physical, structural and nuclear radiation shielding characteristics
    (Springer Science and Business Media Deutschland GmbH, 2021) Deliormanli A.M.; Issa S.A.M.; Al-Buriahi M.S.; Rahman B.; Zakaly H.M.H.; Tekin H.O.
    Erbium (III)- and terbium (III)-containing (1, 3 and 5 wt%) silicate-based bioactive glass powders were synthesized using sol–gel method. Their structural and physical properties were investigated. Radiation attenuation properties of the prepared glass samples were examined using Monte Carlo simulations. The photon transmission properties of the prepared bioactive specimens were obtained via Phy-X PSD program and FLUKA simulation. Results showed that all of the glasses synthesized in the study were amorphous. The true density values were measured in the range of 2.57–2.68 g/cm3. Simulation studies revealed that the lowest neutron cross section was observed for the pure 13–93 bioactive glass sample and the maximum neutron cross section was noted for the prepared bioactive specimens of 5% Er and 5% Tb. Bioactive glass powders synthesized in the study have potential to be used as radiation shielding material in tissue engineering applications. © 2021, The Author(s), under exclusive licence to Springer-Verlag GmbH, DE part of Springer Nature.
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    13-93B3 Bioactive glasses containing Ce3+, Ga3+ and V5+: dose rate and gamma radiation characteristic for medical purposes
    (Springer Science and Business Media Deutschland GmbH, 2021) Deliormanlı A.M.; Al-Buriahi M.S.; Somaily H.H.; Tekin H.O.
    In this study, dose rates and radiation attenuation features of a group of fabricated bioactive glasses were investigated. The borate-based 13-93B3 bioactive glass powders (B3) containing cerium (III), gallium (III) or vanadium (IV) were prepared by melting a homogenized mixture of reagent-grade CaCO3, Na2CO3, MgCO3, K2CO3, H3BO3, CaHPO4.2H2O, Ga2O3, V2O5 or Ce(CH3CO2)3, and disc-shaped scaffolds were prepared by die pressing. Bioactive glasses were modelled by using MCNPX (version 2.7.0) general-purpose Monte Carlo code. A gamma-ray transmission set-up was utilized for determination of mass attenuation coefficients. The obtained coefficients were used for determination of other essential attenuation properties. Finally, exposure (EBF) and energy absorption (EABF) build-up factors were determined. Although the chemical structure of the additive material in bioactive glasses is identical, it can be inferred that the chemical structure of the additive is closely linked to the radiation attenuation characteristics of the bioactive glasses. Results also revealed that, although the bulk densities of the disc-shaped bioactive glass samples were lower than the measured true density values of the melt-derived glass powders due to porosity concerns, they exhibited radiation shielding effect. Findings of the study may be useful in understanding the radiation shielding characteristics of the bioactive glass scaffolds fabricated by powder processing. It can be concluded that outcomes of recent investigation can be useful during the evaluation of potential interactions between the bioactive glasses and medical radiation in the body. © 2021, The Author(s), under exclusive licence to Springer-Verlag GmbH, DE part of Springer Nature.