Evaluation of physical and radiation shielding properties of Bi2O3–B2O3 glass doped transition metals ions

Hussein, E. M. Abou; Madbouly, A.M.; El-Din, F. M. Ezz; Elalaily, N.A.

doi:10.1016/j.matchemphys.2020.124212

Cited by 28 publications

(6 citation statements)

References 42 publications

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“…Additionally, it defines the glass structure and explains how the various metal oxides are placed and interrelated with their neighboring ions in the glassy network [30]. The trigonal BO 3 units, which join to form the six-membered boroxol ring, and the tetrahedral BO 4 groups are the basic structural building blocks of the borate structure.…”

Section: Ftir Absorption Spectramentioning

confidence: 99%

“…BO 3 units that do not form a ring can be converted to BO 4 units by introducing alkali metal ions to boron oxide. Boroxol rings are transformed to sixmembered rings with one BO 4 − tetrahedron such as triborate, tetraborate, pentaborate, or six-membered rings with two BO 4 − tetrahedral (diborate) by the addition of metal oxide to boron [30][31]. The addition of low percentages of 3d transition metal oxide, such as titanium oxide (TiO 2 ), is not expected to create noticeable modifications in the FTIR spectra of either the primary structural building components or their arrangements.…”

Section: Ftir Absorption Spectramentioning

confidence: 99%

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Antibiofilm Efficiency of CaF2/TiO2 Strontium Borate Bioactive Glass Composites against Pseudomonas aeruginosa and Gamma Radiation Effect

Abou Hussein,

Abou Hussien,

Ibrahim

et al. 2024

Indones. J. Chem.

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Microbial drug resistance has emerged as one of the most fundamental health threats. The current work aims to assess the antibacterial and antibiofilm potential of strontium borate bio-glasses (BBGs). Three CaF2/TiO2 strontium borate compositions have been prepared through melting annealing methods. The XRD pattern displays the amorphous nature of the glassy samples. The primary structural components of the borate, the trigonal BO3 and tetrahedral BO4 group, can be observed in FTIR spectra. Sharpness and shifting peaks to longer wavenumbers were evident after 40 kGy of gamma radiation. In contrast, density and molar volume (Vm) reveal an obvious change after irradiation. The agar diffusion technique was conducted as a preliminary screening of the antibacterial activity against Pseudomonas aeruginosa. The studied samples possessed no antimicrobial activity toward this strain; however, samples with 2% CaF2 strontium borate (T1) and 5% TiO2 strontium borate (T3) had higher biofilm inhibition potential (inhibition percentages of 75.17 and 65.77%, respectively). The gamma irradiation procedure had an unexpected detrimental effect on the bio-glass antibiofilm activity, making it unsuitable for use in sterilization procedures. Collectively, BBGs could be further investigated as possible antibacterial agents against biofilm-producing resistant strains.

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Section: Ftir Absorption Spectramentioning

confidence: 99%

Section: Ftir Absorption Spectramentioning

confidence: 99%

Antibiofilm Efficiency of CaF2/TiO2 Strontium Borate Bioactive Glass Composites against Pseudomonas aeruginosa and Gamma Radiation Effect

Abou Hussein,

Abou Hussien,

Ibrahim

et al. 2024

Indones. J. Chem.

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“…Therefore, it is controlled essentially by the glass composition and any structural modi cations take place because of speci c factors like the addition of modi er ions and/or irradiation processes. Eopt can be adjusted by generating positively or negatively charged defect centers "color center" causing the formation of energy levels between the original bands [24]. Fig.…”

Section: Optical Energy Band Gap Eoptmentioning

confidence: 99%

“…This in uence is controlled by the glass composition, its intrinsic defects and the dose of irradiation [21]. Ionizing radiation causes the production of electron-hole pairs which usually absorb visible light (color centers) so, it affects the glass optical properties and then its radiation sensitivity and e ciency [24]. Many instrumental techniques can be used to identify the formed induced defects in the glass like optical and ESR measurements.…”

Section: Introductionmentioning

confidence: 99%

Effect of gamma rays on Zn/Cu doped strontium borate glass system for dosimetric applications

Hussein

Gafar

2022

Radiochimica Acta

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Two alkali strontium borate glasses containing Cu2+ or Zn2+ ions (0.15 mol%) has been prepared by melting annealing method. Some of the glasses dosimetric measurements have been performed; they were checked by ultraviolet-visible light measurement showing the specific peaks of Cu+/Cu2+ and Zn2+ ions. Upon γ-rays, glasses are sensitive to the absorbed dose in the range 0.4–15 kGy, revealing their light absorption. A gradual decrease in optical absorbance and DC electrical conductivity was detected with progressive irradiation. While a gradual increase in optical energy bandgap (Eopt) and electron paramagnetic resonance (EPR) was observed. The presence of transition metal ion (TM) with their variable configurations helps to trap the radiolytic electrons or holes during the color center recovery rates. UV–Vis and EPR dosimetric characteristics have high color stability with excellent short and long-term stability revealing their possible use as glass dosimeters in medical sterilization and food irradiation processing.

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“…Moreover, optical absorption and Electron Paramagnetic Resonance (EPR) are the best experimental techniques to investigate the structure around the TMI. Recently, few authors studied the shielding efficiency with the excess of TMI in various borate glass systems [22][23][24].…”

Section: Introductionmentioning

confidence: 99%

Structural and optical properties of BaTiO₃ modified cadmium alkali borate glasses

et al. 2022

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Borate glasses Na2B4O7 – CdO – CuO- BaTiO3 have been manufactured by the traditional melt quenching method. The increment of BaTiO3 affects strictly the density and the molar volume of the glass samples. The spectroscopic investigations by FTIR and Raman spectra show that the glass network consists of different structural units of [BO3] and [BO4] along with [TiO4]. The elaborated investigations assume the glass former role of TiO2. These arguments depend on the transformation of [BO3] into [BO4] units, which result in a decrement in the magnitude of disorder in the glass structure. The compositional dependence on BaTiO3 reveals that the behavior of Urbach energy confirms the decrement of disorder and the trend of the optical band gap shows a decrement process with a priority to direct transitions. Moreover, EPR spectra revealed that the Cu2+ ions occupy the positions of elongated octahedral positions with tetragonal distortions.

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Evaluation of physical and radiation shielding properties of Bi2O3–B2O3 glass doped transition metals ions

Cited by 28 publications

References 42 publications

Antibiofilm Efficiency of CaF<sub>2</sub>/TiO<sub>2</sub> Strontium Borate Bioactive Glass Composites against <i>Pseudomonas aeruginosa</i> and Gamma Radiation Effect

Antibiofilm Efficiency of CaF<sub>2</sub>/TiO<sub>2</sub> Strontium Borate Bioactive Glass Composites against <i>Pseudomonas aeruginosa</i> and Gamma Radiation Effect

Effect of gamma rays on Zn/Cu doped strontium borate glass system for dosimetric applications

Structural and optical properties of BaTiO₃ modified cadmium alkali borate glasses

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Evaluation of physical and radiation shielding properties of Bi2O3–B2O3 glass doped transition metals ions

Cited by 28 publications

References 42 publications

Antibiofilm Efficiency of CaF<sub>2</sub>/TiO<sub>2</sub> Strontium Borate Bioactive Glass Composites against <i>Pseudomonas aeruginosa</i> and Gamma Radiation Effect

Antibiofilm Efficiency of CaF<sub>2</sub>/TiO<sub>2</sub> Strontium Borate Bioactive Glass Composites against <i>Pseudomonas aeruginosa</i> and Gamma Radiation Effect

Effect of gamma rays on Zn/Cu doped strontium borate glass system for dosimetric applications

Structural and optical properties of BaTiO3 modified cadmium alkali borate glasses

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Product

Resources

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Structural and optical properties of BaTiO₃ modified cadmium alkali borate glasses