In this paper, we explore nonlocal correlation and Bell non-locality in a two-qubit Heisenberg XY... more In this paper, we explore nonlocal correlation and Bell non-locality in a two-qubit Heisenberg XYZ model by using Bell-CHSH inequality and uncertainty induced nonlocality (UIN) as well as log-negativity. We consider the effects of spin-qubits XYZ-Heisenberg couplings, the-component of DM interaction, and intrinsic decoherence. Our results show that spin-qubits Heisenberg couplings have a strong ability to create two-qubit nonlocal correlations, enhanced by combining with DM interactions. The generated Bell-CHSH nonlocality and entanglement conform to the hierarchy principle. The UIN correlation is more resistant to intrinsic decoherence compared to Bell-CHSH inequality and log-negativity. Intrinsic decoherence causes the disappearance of Bell-CHSH non-locality and log-negativity entanglement, while leading to the appearance of partial stationary spin-qubits UIN correlation.
Using Wigner-Yanase and Fisher information [including local quantum uncertainty (LQU) and local q... more Using Wigner-Yanase and Fisher information [including local quantum uncertainty (LQU) and local quantum Fisher information (LQFI)] as well as log-negativity, we investigate the thermal non-local correlations of twoqubit Heisenberg XYZ non-X states produced in the presence of the Dzyaloshinskii-Moriya (DM) interaction. The two-spin XYZ-Heisenberg non-local correlation decay can be weakened by increasing the DM interaction as well as the spin-spin XYZ-Heisenberg interactions. The LQFI correlation has greater resistance to thermal degradation. The spin-spin-component antiferromagnetic coupling has a higher ability to protect the generated spin-spin nonlocal correlations against high temperatures. The emergence of the phenomena of the sudden death of log-negativity and the sudden change of the LQFI and LQU depend on the spin-spin XYZ-Heisenberg and DM interactions as well as on the bath temperature. The generated asymmetric correlations resulting due to the ,-component spin interactions confirm that the antiferromagnetic coupling has a high ability to generate a maximally correlated two-qubit state. While the generated correlations, due to twospin-component interaction, present symmetric dynamics, and its amount depends on the-component spin interaction.
Polymer composite materials combines of polyvinyl alcohol (PVA), chitosan (CS), and
titanium oxid... more Polymer composite materials combines of polyvinyl alcohol (PVA), chitosan (CS), and titanium oxide ( TiO2) were successfully synthesizing for using in optoelectronics. Successful incorporation of TiO2 into the PVA/Chitosan (PVA/CS) blend matrix has been demonstrated by XRD, AFM, FTIR and SEM. The TiO2 is uniformly loaded and distributed in polymer chain, as seen by SEM and AFM images. Using UV–Vis optical spectroscopy, we determine the absorption coefficient, band edge, carbon clusters numbers, and Urbach energy. The effects of TiO2 on linear/nonlinear optical characteristics were investigated. The band gap of PVA/CS/TiO2 is reduced when compared to PVA/CS. However, the absorbance and optical conductivity were both increased by TiO2. After mixed PVA/CS with 2.5%, 7.5%, and 10% TiO2, the band gap energy drops from 4.99 for PVA/CS to 4.9, 4.7, and 4.23 eV, while the Urbach tail of the blend is 1.01 eV, it enhanced to 1.45 eV, 1.72 eV, and 2.07 eV respectively. The values of relaxation time decrease gradually from 2.35 × 10– 5 s to 1.11 × 10– 5, 1.87 × 10– 6 to 1.69 × 10– 6 s as the concentration of TiO2 is raised from 2.5 to 7.5% and 10%. It has been found that incorporating TiO2 into PVA/CS enhances the synthetic composite’s optical characteristics, making the composite PVA/CS/ TiO2 it suitable for use in both energy applications and optoelectronics.
A uniform spherical nanocomposite of polypyrrole (PPy)/ CuO has been formed through the polymeriz... more A uniform spherical nanocomposite of polypyrrole (PPy)/ CuO has been formed through the polymerization of PPy in presence of copper nanoparticles (CuNPs). This nanocomposite consists of PPy and semiconductor copper oxide (CuO), with the incorporation of Cu plasmonic material are have excellent optical properties in a wide range of wavelengths. The morphology of the nanocomposite has been analyzed through TEM and SEM, which showed that the particles were uniform and consisted of small particles attached to form a larger particle with an average size ranging from 170 to 510 nm. XPS and XRD are confirming the elemental and composition of the materials. The PPy/Cu-CuO nanocomposite was used as a photodetector, and it showed great performance under both dark and light conditions and under monowavelength. The photodetector device had a high photoresponsivity (R) of 0.036 mA W −1 and detectivity (D) of 8.1*10 5 Jones, demonstrating its high sensitivity. The device's sensitivity was demonstrated through its excellent reproducibility under on/off chopped light. Due to its higher efficiency and affordability, this device is well-suited for industrial applications.
Regenerative medicine is a field that aims to influence and improvise the processes of tissue rep... more Regenerative medicine is a field that aims to influence and improvise the processes of tissue repair and restoration and to assist the body to heal and recover. In the field of hard tissue regeneration, bio-inert materials are being predominantly used, and there is a necessity to use bioactive materials that can help in better tissue–implant interactions and facilitate the healing and regeneration process. One such bioactive material that is being focused upon and studied extensively in the past few decades is bioactive glass (BG). The original bioactive glass (45S5) is composed of silicon dioxide, sodium dioxide, calcium oxide, and phosphorus pentoxide and is mainly referred to by its commercial name Bioglass. BG is mainly used for bone tissue regeneration due to its osteoconductivity and osteostimulation properties. The bioactivity of BG, however, is highly dependent on the compositional ratio of certain glass-forming system content. The manipulation of content ratio and the eleme...
This article is an open access article distributed under the terms and conditions of the Creative... more This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY
The purpose of this study is on developing innovative physicochemical characteristics of flexible... more The purpose of this study is on developing innovative physicochemical characteristics of flexible composite films for usage in outstanding performance optoelectronics products. This work illustrates the effects of conducting polyaniline (PANI) on the structural and optical characteristics of cellulose acetate (CA). The CA/PANI were successfully synthesized by solution fabrication casting method as demonstrated by XRD, EDX, SEM, and FTIR techniques. The XRD of CA/PANI films recorded the broadness and reduction of peaks intensity with increasing PANI. This is attributed to the intermolecular interactions of CA and PANI. The FTIR recorded a decrease in the intensities of CA/PANI, indicating the successful incorporation of PANI in CA. The surface morphology is investigated by SEM to record the homogenous distribution of PANI in CA. Moreover, the optical behavior of the samples was recorded by UV/Vis spectroscopy in wavelength 190 to 1150 nm. The absorption edge, band tail, band gap, and number of carbon cluster were estimated. By increase PANI content from 2 to 6%, the band gap is reduce from 5.17 to 4.02 eV and the band tail is changed from 0.84 to 3.96 eV. In addition, carbon clusters number is enhanced from 44 to 73. Moreover, the optical coefficients such coefficient of extinction, refractive index were computed. Furthermore, the Wemple/Di-Domenico is used to record the dispersion parameters of CA and CA/PANI films. The results indicate the PANI induced modifications on the linear/
This article is an open access article distributed under the terms and conditions of the Creative... more This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY
In this current study, hydrogen ions of fluence 5 × 10 17 , 10 × 10 17 as well as 15 × 10 17 ions... more In this current study, hydrogen ions of fluence 5 × 10 17 , 10 × 10 17 as well as 15 × 10 17 ions. cm − 2 were irradiating PVA/ZnO films for applying the irradiated samples in optoelectronics devices. The XRD, SEM, as well as FTIR techniques were used to record the effects of hydrogen ions on the structures, morphologies, as well as functional group of the irradiated films respectively. The FTIR and XRD employed the successful fabricated of the PVA/ZnO composite that made of polyvinyl alcohol (PVA) and zinc oxide nanoparticles (ZnONPs). On the other hand, UV-Vis spectroscopic analysis was utilized to examine optical properties of the PVA/ZnO. The bandgap, absorption edge, as well as Urbach energies of pure and ion-exposed films were calculated via the Tauc's formula. By increasing hydrogen ions to 15 × 10 17 ions.cm − 2 , the Urbach tail increased from 0.36 to 0.43 eV and the optical gap decreased form 2.86 to 2.74 eV. Additionally, the non-linear dispersion properties and optical susceptibilities of pure and irradiated samples were recorded. The irradiated PVA/ZnO samples exhibited enhanced structural and linear/nonlinear optical characteristics, making them suitable for use in optoelectronics.
In this work, PEO/NiO films composed of polyethylene oxide (PEO) and nickel oxide (NiO) were fabr... more In this work, PEO/NiO films composed of polyethylene oxide (PEO) and nickel oxide (NiO) were fabricated using solution cast method to be used in optoelectronics applications. The PEO/NiO films are irradiated by oxygen fluence of 0.8 × 10 18 , 1.6 × 10 18 , and 2.4 × 10 18 ions/cm 2. The XRD as well as FTIR techniques were used to assess the effect of ion bombardment on the crystalline structures and functional group of PEO/ NiO films. The absorption (A) and reflection (R) of the untreated and irradiated films was determined using UV-vis spectrophotometer in wavelength range of 200 to 1000 nm at room temperature. The data of A and R were used to calculate the parameters including band gap (E g), absorption coefficient (α) and refractive index (n). The band gap as well as Urbach energies of un-bombarded as well as bombarded PEO/NiO films was calculated by Tauc's relationship. The band gap is reduced from 3.37 eV for PEO/NiO, to 2.66 eV, 2.57 eV and 2.50 eV after exposed to 0.8 × 10 18 , 1.6 × 10 18 , and 2.4 × 10 18 ions/cm 2 correspondingly, Moreover, the ubrach band tail is increased from 1.25 eV for PEO/NiO to 1.36 eV,1.41 eV and 1.45 eV after oxygen irradiation respectively. Additionally, linear optical characteristics have been calculated, including the refractive index and dielectric constant. The dispersing factors of the investigated films have also been computed using the Wemple-Di-Domenico model. The non-linear optic susceptibilities and refractive indices are calculated for un-bombarded as well as bombarded films. This work concluded that the optical behaviour of the bombarded PEO/NiO composite films were modified, indicating that these composites films can used in optoelectronics devices.
This article is an open access article distributed under the terms and conditions of the Creative... more This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY
This article is an open access article distributed under the terms and conditions of the Creative... more This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY
Regenerative medicine is a field that aims to influence and improvise the processes of tissue rep... more Regenerative medicine is a field that aims to influence and improvise the processes of tissue repair and restoration and to assist the body to heal and recover. In the field of hard tissue regeneration, bio-inert materials are being predominantly used, and there is a necessity to use bioactive materials that can help in better tissue-implant interactions and facilitate the healing and regeneration process. One such bioactive material that is being focused upon and studied extensively in the past few decades is bioactive glass (BG). The original bioactive glass (45S5) is composed of silicon dioxide, sodium dioxide, calcium oxide, and phosphorus pentoxide and is mainly referred to by its commercial name Bioglass. BG is mainly used for bone tissue regeneration due to its osteoconductivity and osteostimulation properties. The bioactivity of BG, however, is highly dependent on the compositional ratio of certain glass-forming system content. The manipulation of content ratio and the element compositional flexibility of BG-forming network developed other types of bioactive glasses with controllable chemical durability and chemical affinity with bone and bioactivity. This review article mainly discusses the basic information about silica-based bioactive glasses, including their composition, processing, and properties, as well as their medical applications such as in bone regeneration, as bone grafts, and as dental implant coatings.
This article is an open access article distributed under the terms and conditions of the Creative... more This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY
Glass series with the composition 72 B 2 O 3-(28 − x) Li 2 Ox Y 2 O 3 : x = 0, 2, 4,8, and 12 mol... more Glass series with the composition 72 B 2 O 3-(28 − x) Li 2 Ox Y 2 O 3 : x = 0, 2, 4,8, and 12 mol% was fabricated using the melt quenching procedure. The structural, optical, and radiation shielding characteristics have been estimated. As the concentration of Y 2 O 3 increased, the optical bandgap (direct and indirect), and refractive index of fabricated samples increased, while Urbach's energy declined. Dispersion parameters of the fabricated samples were determined. The gamma attenuation variables of manufactured samples were detected with the Phy-X/PSD code. The highest MAC values were found at low energies, indicating that it could be used as a gamma radiation absorber. G 1 presented the maximum MFP and HVL, while G 5 has the slightest MFPs and HVLs. Z eff values decreases with an increase of Y 2 O 3. So, these results indicate that G 5 has stronger photon shielding than the other glasses.
Herein, a bioactive glass system in the structure of SiO 2-Na 2 O-P 2 O 5-CaO-B 2 O 3 have been r... more Herein, a bioactive glass system in the structure of SiO 2-Na 2 O-P 2 O 5-CaO-B 2 O 3 have been reported to act as Xray radiation shielding material. The mass attenuation coefficient (MAC) was estimated utilizing MCNP5 code and Phys-X software for a range of photon energies from 15 keV to 100 keV. The maximum difference between the MAC (MCNP5 and Phys-X) is determined to be 2.6% at 15 keV and 4% at 100 keV. The effective atomic number (Zeff) results showed that the glass coded as BioG1 has the highest Z eff. The mechanical properties of the tested bioactive glasses were calculated by determining several parameters such as Packing factor, Dissociation energy and Bulk module. The Packing factor (V i) increases from 12.721 to 16.598 as the content of B 2 O 3 changes from 0 to 53.85 mol%, and dissociation energy (G) increases from 58.283 to 75.669 kcal/cm 3 due to the increase of the B 2 O 3 from 0 to 53.85 mol%.
28B 2 O 3-15CaO-14SiO 2-18P 2 O 5-(25 − x) K 2 Ox TiO 2 x = (0 ≤ x ≤ 5 mol%) glass system was fab... more 28B 2 O 3-15CaO-14SiO 2-18P 2 O 5-(25 − x) K 2 Ox TiO 2 x = (0 ≤ x ≤ 5 mol%) glass system was fabricated. XRD was used to verify the amorphousness of the glasses. The molar volume and density have been calculated. Differential thermal analysis was used to investigate the thermal stability of the fabricated glasses. The pulse-echo technique was used to measure ultrasonic velocities. The elastic moduli of the glasses, as well as all mechanical variables, were evaluated. The elastic moduli have been theoretically analyzed. The experimental data of elastic moduli were interpreted using the Bond compression and Makishima-Mackenzie models. Dental prosthetics and orthopedic implants are two examples of applications for these glasses.
We examine the availability of lithium iron borosilicate glasses doped with ZnO as radiation shie... more We examine the availability of lithium iron borosilicate glasses doped with ZnO as radiation shielding attenuators; for this, a glass system 64.8B 2 O 3-8.5SiO 2-1.5Fe 2 O 3-(25.2 − x)Li 2 Ox ZnO x = (0 ≤ x ≤ 16 mol. %) has been fabricated utilizing melt quenching procedures. As the increase in ZnO density increment from 2.77 to 4.47 g/cm 3 and molar volume decrement 21.71 to 16.03 cm 3 mol −1 , respectively. DTA parameters were improved after the incorporation of ZnO into the glass matrix. FT-IR revealed that BO 3 converts into BO 4 after ZnO is integrated & the structure stiffens as the coherence of the glass network improves. To investigate the impact of ZnO on the optical characterizations of glassy specimens were measured in the ultraviolet-visible, & NIR range. The range of the optical energy increases from 2.88 eV to 3.68 eV, while E u decreases from 0.347 eV to 0.272 eV. The radiation shielding specifications of the glass system were also calculated by Phy-X code. The Lithium iron borosilicate glasses doped with ZnO appeared to be transparent to the visible range and to have good gamma-ray and neutron shielding features, according to the obtained outcomes.
In the present work, we examined the impact of Fe 2 O 3 on the mechanical and photon shielding ch... more In the present work, we examined the impact of Fe 2 O 3 on the mechanical and photon shielding characteristics of leadphosphoaluminate glasses. Due to water corrosion, the use of lead-phosphosilicate glasses may be limited.The addition of Fe 2 O 3 significantly improves its water resistance. The radiation and mechanical of 20PbO-45P 2 O 5 − 15 Al 2 O 3-(20 − x) Na 2 Ox Fe 2 O 3 glass system doped with xFe 2 O 3 reflect the originality of this article. The molar volume of these samples is declining whereas the density is an increment. Ultrasonic velocity and elastic modulus were found to be enhanced. The shielding parameters were established using the Phy-X / PSD. The mace attenuation coefficient is the highest in the sample with the maximum Fe 2 O 3 content. The (Z eff) and (N eff) values decreased and then increased slowly at lower energy. Because of the Compton scattering interaction, the (Zeq)-value decreases as the energy and Fe 2 O 3 content increase. Small deviations from the glass samples are observed at higher energy levels to decrease the value (ΣR). Finally, the increment of Fe 2 O 3 in prepared glasses increases the γ-radiation & neutronattenuation rate.
In this paper, we explore nonlocal correlation and Bell non-locality in a two-qubit Heisenberg XY... more In this paper, we explore nonlocal correlation and Bell non-locality in a two-qubit Heisenberg XYZ model by using Bell-CHSH inequality and uncertainty induced nonlocality (UIN) as well as log-negativity. We consider the effects of spin-qubits XYZ-Heisenberg couplings, the-component of DM interaction, and intrinsic decoherence. Our results show that spin-qubits Heisenberg couplings have a strong ability to create two-qubit nonlocal correlations, enhanced by combining with DM interactions. The generated Bell-CHSH nonlocality and entanglement conform to the hierarchy principle. The UIN correlation is more resistant to intrinsic decoherence compared to Bell-CHSH inequality and log-negativity. Intrinsic decoherence causes the disappearance of Bell-CHSH non-locality and log-negativity entanglement, while leading to the appearance of partial stationary spin-qubits UIN correlation.
Using Wigner-Yanase and Fisher information [including local quantum uncertainty (LQU) and local q... more Using Wigner-Yanase and Fisher information [including local quantum uncertainty (LQU) and local quantum Fisher information (LQFI)] as well as log-negativity, we investigate the thermal non-local correlations of twoqubit Heisenberg XYZ non-X states produced in the presence of the Dzyaloshinskii-Moriya (DM) interaction. The two-spin XYZ-Heisenberg non-local correlation decay can be weakened by increasing the DM interaction as well as the spin-spin XYZ-Heisenberg interactions. The LQFI correlation has greater resistance to thermal degradation. The spin-spin-component antiferromagnetic coupling has a higher ability to protect the generated spin-spin nonlocal correlations against high temperatures. The emergence of the phenomena of the sudden death of log-negativity and the sudden change of the LQFI and LQU depend on the spin-spin XYZ-Heisenberg and DM interactions as well as on the bath temperature. The generated asymmetric correlations resulting due to the ,-component spin interactions confirm that the antiferromagnetic coupling has a high ability to generate a maximally correlated two-qubit state. While the generated correlations, due to twospin-component interaction, present symmetric dynamics, and its amount depends on the-component spin interaction.
Polymer composite materials combines of polyvinyl alcohol (PVA), chitosan (CS), and
titanium oxid... more Polymer composite materials combines of polyvinyl alcohol (PVA), chitosan (CS), and titanium oxide ( TiO2) were successfully synthesizing for using in optoelectronics. Successful incorporation of TiO2 into the PVA/Chitosan (PVA/CS) blend matrix has been demonstrated by XRD, AFM, FTIR and SEM. The TiO2 is uniformly loaded and distributed in polymer chain, as seen by SEM and AFM images. Using UV–Vis optical spectroscopy, we determine the absorption coefficient, band edge, carbon clusters numbers, and Urbach energy. The effects of TiO2 on linear/nonlinear optical characteristics were investigated. The band gap of PVA/CS/TiO2 is reduced when compared to PVA/CS. However, the absorbance and optical conductivity were both increased by TiO2. After mixed PVA/CS with 2.5%, 7.5%, and 10% TiO2, the band gap energy drops from 4.99 for PVA/CS to 4.9, 4.7, and 4.23 eV, while the Urbach tail of the blend is 1.01 eV, it enhanced to 1.45 eV, 1.72 eV, and 2.07 eV respectively. The values of relaxation time decrease gradually from 2.35 × 10– 5 s to 1.11 × 10– 5, 1.87 × 10– 6 to 1.69 × 10– 6 s as the concentration of TiO2 is raised from 2.5 to 7.5% and 10%. It has been found that incorporating TiO2 into PVA/CS enhances the synthetic composite’s optical characteristics, making the composite PVA/CS/ TiO2 it suitable for use in both energy applications and optoelectronics.
A uniform spherical nanocomposite of polypyrrole (PPy)/ CuO has been formed through the polymeriz... more A uniform spherical nanocomposite of polypyrrole (PPy)/ CuO has been formed through the polymerization of PPy in presence of copper nanoparticles (CuNPs). This nanocomposite consists of PPy and semiconductor copper oxide (CuO), with the incorporation of Cu plasmonic material are have excellent optical properties in a wide range of wavelengths. The morphology of the nanocomposite has been analyzed through TEM and SEM, which showed that the particles were uniform and consisted of small particles attached to form a larger particle with an average size ranging from 170 to 510 nm. XPS and XRD are confirming the elemental and composition of the materials. The PPy/Cu-CuO nanocomposite was used as a photodetector, and it showed great performance under both dark and light conditions and under monowavelength. The photodetector device had a high photoresponsivity (R) of 0.036 mA W −1 and detectivity (D) of 8.1*10 5 Jones, demonstrating its high sensitivity. The device's sensitivity was demonstrated through its excellent reproducibility under on/off chopped light. Due to its higher efficiency and affordability, this device is well-suited for industrial applications.
Regenerative medicine is a field that aims to influence and improvise the processes of tissue rep... more Regenerative medicine is a field that aims to influence and improvise the processes of tissue repair and restoration and to assist the body to heal and recover. In the field of hard tissue regeneration, bio-inert materials are being predominantly used, and there is a necessity to use bioactive materials that can help in better tissue–implant interactions and facilitate the healing and regeneration process. One such bioactive material that is being focused upon and studied extensively in the past few decades is bioactive glass (BG). The original bioactive glass (45S5) is composed of silicon dioxide, sodium dioxide, calcium oxide, and phosphorus pentoxide and is mainly referred to by its commercial name Bioglass. BG is mainly used for bone tissue regeneration due to its osteoconductivity and osteostimulation properties. The bioactivity of BG, however, is highly dependent on the compositional ratio of certain glass-forming system content. The manipulation of content ratio and the eleme...
This article is an open access article distributed under the terms and conditions of the Creative... more This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY
The purpose of this study is on developing innovative physicochemical characteristics of flexible... more The purpose of this study is on developing innovative physicochemical characteristics of flexible composite films for usage in outstanding performance optoelectronics products. This work illustrates the effects of conducting polyaniline (PANI) on the structural and optical characteristics of cellulose acetate (CA). The CA/PANI were successfully synthesized by solution fabrication casting method as demonstrated by XRD, EDX, SEM, and FTIR techniques. The XRD of CA/PANI films recorded the broadness and reduction of peaks intensity with increasing PANI. This is attributed to the intermolecular interactions of CA and PANI. The FTIR recorded a decrease in the intensities of CA/PANI, indicating the successful incorporation of PANI in CA. The surface morphology is investigated by SEM to record the homogenous distribution of PANI in CA. Moreover, the optical behavior of the samples was recorded by UV/Vis spectroscopy in wavelength 190 to 1150 nm. The absorption edge, band tail, band gap, and number of carbon cluster were estimated. By increase PANI content from 2 to 6%, the band gap is reduce from 5.17 to 4.02 eV and the band tail is changed from 0.84 to 3.96 eV. In addition, carbon clusters number is enhanced from 44 to 73. Moreover, the optical coefficients such coefficient of extinction, refractive index were computed. Furthermore, the Wemple/Di-Domenico is used to record the dispersion parameters of CA and CA/PANI films. The results indicate the PANI induced modifications on the linear/
This article is an open access article distributed under the terms and conditions of the Creative... more This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY
In this current study, hydrogen ions of fluence 5 × 10 17 , 10 × 10 17 as well as 15 × 10 17 ions... more In this current study, hydrogen ions of fluence 5 × 10 17 , 10 × 10 17 as well as 15 × 10 17 ions. cm − 2 were irradiating PVA/ZnO films for applying the irradiated samples in optoelectronics devices. The XRD, SEM, as well as FTIR techniques were used to record the effects of hydrogen ions on the structures, morphologies, as well as functional group of the irradiated films respectively. The FTIR and XRD employed the successful fabricated of the PVA/ZnO composite that made of polyvinyl alcohol (PVA) and zinc oxide nanoparticles (ZnONPs). On the other hand, UV-Vis spectroscopic analysis was utilized to examine optical properties of the PVA/ZnO. The bandgap, absorption edge, as well as Urbach energies of pure and ion-exposed films were calculated via the Tauc's formula. By increasing hydrogen ions to 15 × 10 17 ions.cm − 2 , the Urbach tail increased from 0.36 to 0.43 eV and the optical gap decreased form 2.86 to 2.74 eV. Additionally, the non-linear dispersion properties and optical susceptibilities of pure and irradiated samples were recorded. The irradiated PVA/ZnO samples exhibited enhanced structural and linear/nonlinear optical characteristics, making them suitable for use in optoelectronics.
In this work, PEO/NiO films composed of polyethylene oxide (PEO) and nickel oxide (NiO) were fabr... more In this work, PEO/NiO films composed of polyethylene oxide (PEO) and nickel oxide (NiO) were fabricated using solution cast method to be used in optoelectronics applications. The PEO/NiO films are irradiated by oxygen fluence of 0.8 × 10 18 , 1.6 × 10 18 , and 2.4 × 10 18 ions/cm 2. The XRD as well as FTIR techniques were used to assess the effect of ion bombardment on the crystalline structures and functional group of PEO/ NiO films. The absorption (A) and reflection (R) of the untreated and irradiated films was determined using UV-vis spectrophotometer in wavelength range of 200 to 1000 nm at room temperature. The data of A and R were used to calculate the parameters including band gap (E g), absorption coefficient (α) and refractive index (n). The band gap as well as Urbach energies of un-bombarded as well as bombarded PEO/NiO films was calculated by Tauc's relationship. The band gap is reduced from 3.37 eV for PEO/NiO, to 2.66 eV, 2.57 eV and 2.50 eV after exposed to 0.8 × 10 18 , 1.6 × 10 18 , and 2.4 × 10 18 ions/cm 2 correspondingly, Moreover, the ubrach band tail is increased from 1.25 eV for PEO/NiO to 1.36 eV,1.41 eV and 1.45 eV after oxygen irradiation respectively. Additionally, linear optical characteristics have been calculated, including the refractive index and dielectric constant. The dispersing factors of the investigated films have also been computed using the Wemple-Di-Domenico model. The non-linear optic susceptibilities and refractive indices are calculated for un-bombarded as well as bombarded films. This work concluded that the optical behaviour of the bombarded PEO/NiO composite films were modified, indicating that these composites films can used in optoelectronics devices.
This article is an open access article distributed under the terms and conditions of the Creative... more This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY
This article is an open access article distributed under the terms and conditions of the Creative... more This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY
Regenerative medicine is a field that aims to influence and improvise the processes of tissue rep... more Regenerative medicine is a field that aims to influence and improvise the processes of tissue repair and restoration and to assist the body to heal and recover. In the field of hard tissue regeneration, bio-inert materials are being predominantly used, and there is a necessity to use bioactive materials that can help in better tissue-implant interactions and facilitate the healing and regeneration process. One such bioactive material that is being focused upon and studied extensively in the past few decades is bioactive glass (BG). The original bioactive glass (45S5) is composed of silicon dioxide, sodium dioxide, calcium oxide, and phosphorus pentoxide and is mainly referred to by its commercial name Bioglass. BG is mainly used for bone tissue regeneration due to its osteoconductivity and osteostimulation properties. The bioactivity of BG, however, is highly dependent on the compositional ratio of certain glass-forming system content. The manipulation of content ratio and the element compositional flexibility of BG-forming network developed other types of bioactive glasses with controllable chemical durability and chemical affinity with bone and bioactivity. This review article mainly discusses the basic information about silica-based bioactive glasses, including their composition, processing, and properties, as well as their medical applications such as in bone regeneration, as bone grafts, and as dental implant coatings.
This article is an open access article distributed under the terms and conditions of the Creative... more This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY
Glass series with the composition 72 B 2 O 3-(28 − x) Li 2 Ox Y 2 O 3 : x = 0, 2, 4,8, and 12 mol... more Glass series with the composition 72 B 2 O 3-(28 − x) Li 2 Ox Y 2 O 3 : x = 0, 2, 4,8, and 12 mol% was fabricated using the melt quenching procedure. The structural, optical, and radiation shielding characteristics have been estimated. As the concentration of Y 2 O 3 increased, the optical bandgap (direct and indirect), and refractive index of fabricated samples increased, while Urbach's energy declined. Dispersion parameters of the fabricated samples were determined. The gamma attenuation variables of manufactured samples were detected with the Phy-X/PSD code. The highest MAC values were found at low energies, indicating that it could be used as a gamma radiation absorber. G 1 presented the maximum MFP and HVL, while G 5 has the slightest MFPs and HVLs. Z eff values decreases with an increase of Y 2 O 3. So, these results indicate that G 5 has stronger photon shielding than the other glasses.
Herein, a bioactive glass system in the structure of SiO 2-Na 2 O-P 2 O 5-CaO-B 2 O 3 have been r... more Herein, a bioactive glass system in the structure of SiO 2-Na 2 O-P 2 O 5-CaO-B 2 O 3 have been reported to act as Xray radiation shielding material. The mass attenuation coefficient (MAC) was estimated utilizing MCNP5 code and Phys-X software for a range of photon energies from 15 keV to 100 keV. The maximum difference between the MAC (MCNP5 and Phys-X) is determined to be 2.6% at 15 keV and 4% at 100 keV. The effective atomic number (Zeff) results showed that the glass coded as BioG1 has the highest Z eff. The mechanical properties of the tested bioactive glasses were calculated by determining several parameters such as Packing factor, Dissociation energy and Bulk module. The Packing factor (V i) increases from 12.721 to 16.598 as the content of B 2 O 3 changes from 0 to 53.85 mol%, and dissociation energy (G) increases from 58.283 to 75.669 kcal/cm 3 due to the increase of the B 2 O 3 from 0 to 53.85 mol%.
28B 2 O 3-15CaO-14SiO 2-18P 2 O 5-(25 − x) K 2 Ox TiO 2 x = (0 ≤ x ≤ 5 mol%) glass system was fab... more 28B 2 O 3-15CaO-14SiO 2-18P 2 O 5-(25 − x) K 2 Ox TiO 2 x = (0 ≤ x ≤ 5 mol%) glass system was fabricated. XRD was used to verify the amorphousness of the glasses. The molar volume and density have been calculated. Differential thermal analysis was used to investigate the thermal stability of the fabricated glasses. The pulse-echo technique was used to measure ultrasonic velocities. The elastic moduli of the glasses, as well as all mechanical variables, were evaluated. The elastic moduli have been theoretically analyzed. The experimental data of elastic moduli were interpreted using the Bond compression and Makishima-Mackenzie models. Dental prosthetics and orthopedic implants are two examples of applications for these glasses.
We examine the availability of lithium iron borosilicate glasses doped with ZnO as radiation shie... more We examine the availability of lithium iron borosilicate glasses doped with ZnO as radiation shielding attenuators; for this, a glass system 64.8B 2 O 3-8.5SiO 2-1.5Fe 2 O 3-(25.2 − x)Li 2 Ox ZnO x = (0 ≤ x ≤ 16 mol. %) has been fabricated utilizing melt quenching procedures. As the increase in ZnO density increment from 2.77 to 4.47 g/cm 3 and molar volume decrement 21.71 to 16.03 cm 3 mol −1 , respectively. DTA parameters were improved after the incorporation of ZnO into the glass matrix. FT-IR revealed that BO 3 converts into BO 4 after ZnO is integrated & the structure stiffens as the coherence of the glass network improves. To investigate the impact of ZnO on the optical characterizations of glassy specimens were measured in the ultraviolet-visible, & NIR range. The range of the optical energy increases from 2.88 eV to 3.68 eV, while E u decreases from 0.347 eV to 0.272 eV. The radiation shielding specifications of the glass system were also calculated by Phy-X code. The Lithium iron borosilicate glasses doped with ZnO appeared to be transparent to the visible range and to have good gamma-ray and neutron shielding features, according to the obtained outcomes.
In the present work, we examined the impact of Fe 2 O 3 on the mechanical and photon shielding ch... more In the present work, we examined the impact of Fe 2 O 3 on the mechanical and photon shielding characteristics of leadphosphoaluminate glasses. Due to water corrosion, the use of lead-phosphosilicate glasses may be limited.The addition of Fe 2 O 3 significantly improves its water resistance. The radiation and mechanical of 20PbO-45P 2 O 5 − 15 Al 2 O 3-(20 − x) Na 2 Ox Fe 2 O 3 glass system doped with xFe 2 O 3 reflect the originality of this article. The molar volume of these samples is declining whereas the density is an increment. Ultrasonic velocity and elastic modulus were found to be enhanced. The shielding parameters were established using the Phy-X / PSD. The mace attenuation coefficient is the highest in the sample with the maximum Fe 2 O 3 content. The (Z eff) and (N eff) values decreased and then increased slowly at lower energy. Because of the Compton scattering interaction, the (Zeq)-value decreases as the energy and Fe 2 O 3 content increase. Small deviations from the glass samples are observed at higher energy levels to decrease the value (ΣR). Finally, the increment of Fe 2 O 3 in prepared glasses increases the γ-radiation & neutronattenuation rate.
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Papers by Nuha Al-Harbi
titanium oxide (
TiO2) were successfully synthesizing for using in optoelectronics. Successful
incorporation of TiO2
into the PVA/Chitosan (PVA/CS) blend matrix has been demonstrated
by XRD, AFM, FTIR and SEM. The TiO2
is uniformly loaded and distributed
in polymer chain, as seen by SEM and AFM images. Using UV–Vis optical spectroscopy,
we determine the absorption coefficient, band edge, carbon clusters numbers, and Urbach
energy. The effects of TiO2
on linear/nonlinear optical characteristics were investigated.
The band gap of PVA/CS/TiO2 is reduced when compared to PVA/CS. However, the
absorbance and optical conductivity were both increased by TiO2.
After mixed PVA/CS
with 2.5%, 7.5%, and 10% TiO2,
the band gap energy drops from 4.99 for PVA/CS to 4.9,
4.7, and 4.23 eV, while the Urbach tail of the blend is 1.01 eV, it enhanced to 1.45 eV,
1.72 eV, and 2.07 eV respectively. The values of relaxation time decrease gradually from
2.35 × 10–
5 s to 1.11 × 10–
5, 1.87 × 10–
6 to 1.69 × 10–
6 s as the concentration of TiO2
is
raised from 2.5 to 7.5% and 10%. It has been found that incorporating TiO2
into PVA/CS
enhances the synthetic composite’s optical characteristics, making the composite PVA/CS/
TiO2 it suitable for use in both energy applications and optoelectronics.
titanium oxide (
TiO2) were successfully synthesizing for using in optoelectronics. Successful
incorporation of TiO2
into the PVA/Chitosan (PVA/CS) blend matrix has been demonstrated
by XRD, AFM, FTIR and SEM. The TiO2
is uniformly loaded and distributed
in polymer chain, as seen by SEM and AFM images. Using UV–Vis optical spectroscopy,
we determine the absorption coefficient, band edge, carbon clusters numbers, and Urbach
energy. The effects of TiO2
on linear/nonlinear optical characteristics were investigated.
The band gap of PVA/CS/TiO2 is reduced when compared to PVA/CS. However, the
absorbance and optical conductivity were both increased by TiO2.
After mixed PVA/CS
with 2.5%, 7.5%, and 10% TiO2,
the band gap energy drops from 4.99 for PVA/CS to 4.9,
4.7, and 4.23 eV, while the Urbach tail of the blend is 1.01 eV, it enhanced to 1.45 eV,
1.72 eV, and 2.07 eV respectively. The values of relaxation time decrease gradually from
2.35 × 10–
5 s to 1.11 × 10–
5, 1.87 × 10–
6 to 1.69 × 10–
6 s as the concentration of TiO2
is
raised from 2.5 to 7.5% and 10%. It has been found that incorporating TiO2
into PVA/CS
enhances the synthetic composite’s optical characteristics, making the composite PVA/CS/
TiO2 it suitable for use in both energy applications and optoelectronics.