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首页> 外文期刊>Journal of Non-Crystalline Solids: A Journal Devoted to Oxide, Halide, Chalcogenide and Metallic Glasses, Amorphous Semiconductors, Non-Crystalline Films, Glass-Ceramics and Glassy Composites >Effect of La2O3 concentration on structural, optical and cytotoxicity behaviours of strontium titanate borosilicate glasses
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Effect of La2O3 concentration on structural, optical and cytotoxicity behaviours of strontium titanate borosilicate glasses

机译：La2O3浓度对钛酸锶硼硅酸盐玻璃结构，光学和细胞毒性行为的影响

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摘要

Lanthanum oxide-strontium titanate-borosilicate glasses with increasing content of La2O3 were prepared by the melt quench technique. X-ray diffraction results revealed the amorphous nature of the prepared samples which indicated the formation of glass. In order to study the structure of various glass samples, density and molar volume were calculated at room temperature by using Archimedes principle. Structural and optical properties were studied by employing infrared spectroscopy, Raman spectroscopy and UV-vis spectroscopy techniques. Direct and indirect optical band gap values were evaluated from Davis and Motts plots. The maximum and minimum optical band gap was found to be 3.54 and 3.46 eV. Urbach energy (Eu), steepness parameter (a), skin depth (8) and electron phonon interaction (Ee.p) were also studied. The calculated values of Eu were found to be increased from 0.30 to 0.33 eV with increasing the concentration of La2O3. Cytotoxicity of the synthesized glass samples was also performed. MTT assay was also performed to check the cell viability of the synthesized glass samples. These results revealed that the lower concentrations 1 tg/ml and 5 mu g/ml of the glass sample STB9L are found to be safe for biological applications.
机译：通过熔体骤冷技术制备氧化镧 - 钛酸锶 - 钛酸锶 - 硼硅酸盐玻璃，熔融淬火技术制备。 X射线衍射结果显示制备样品的无定形性质，其表明玻璃形成。为了研究各种玻璃样品的结构，通过使用Archimedes原理在室温下计算密度和摩尔体积。通过采用红外光谱，拉曼光谱和UV-VI光谱技术研究了结构和光学性质。从Davis和Motts Plots评估直接和间接光带隙值。发现最大和最小光带隙为3.54和3.46eV。还研究了URBACH能量（EU），陡度参数（A），肤色深度（8）和电子旋光相互作用（EE.P）。随着La2O3的浓度，发现欧盟的计算值从0.30增加到0.33eV。还进行了合成玻璃样品的细胞毒性。还进行MTT测定以检查合成玻璃样品的细胞活力。这些结果表明，较低浓度的1 Tg / ml和5μg/ ml玻璃样品STB9L被发现对生物应用是安全的。

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