评估聚乙烯醇纳米复合材料中嵌入的 Te2O3/Cr2O3/Pr6O11 的物理、机械和生物特性

IF 4.4 3区化学 Q1 CHEMISTRY, INORGANIC & NUCLEAR

Inorganic Chemistry Communications Pub Date : 2024-11-23 DOI:10.1016/j.inoche.2024.113612

Khadijah H. Alharbi , Amani Saleh Almuslem , Doaa Domyati , Walaa Alharbi , Abdulaziz Almalki , M.A. El-Morsy , A.A. Menazea

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引用次数: 0

摘要

本研究提出了一种新型聚乙烯醇（PVA）基纳米复合材料，其中富含 Te2O3、Cr2O3 和 Pr6O11 氧化物，旨在增强生物医学和光电应用中的光学性能和抗菌功效。通过傅立叶变换红外光谱、X 射线衍射和 XPS 进行的结构分析证实，这些氧化物成功地融入了 PVA 基体。纳米复合材料的光带隙从 3.35 eV（PVA）明显降低到 2.75 eV（PVA-Te2O3-Cr2O3-Pr6O11），表明晶体有序性得到改善。介电分析表明，该材料在各种频率下都具有稳定性，折射率从 2.0（纯 PVA）上升到 2.38（PVA-Te2O3-Cr2O3-Pr6O11），突出了其在电子应用方面的潜力。此外，PVA-Te2O3-Cr2O3-Pr6O11 复合材料具有很强的抗菌活性，对大肠杆菌的抑菌区为 15.5 ± 0.4 mm，对金黄色葡萄球菌的抑菌区为 14.2 ± 0.4 mm，优于其他测试成分。这些研究结果表明，这种纳米复合材料可有效地应用于生物医学设备和光电子学领域。

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Evaluation of physical, mechanical and biological properties of Te2O3/Cr2O3/Pr6O11 embedded in polyvinyl alcohol nanocomposite

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Evaluation of physical, mechanical and biological properties of Te2O3/Cr2O3/Pr6O11 embedded in polyvinyl alcohol nanocomposite

This study presents a novel polyvinyl alcohol (PVA)-based nanocomposite enriched with Te₂O₃, Cr₂O₃, and Pr₆O₁₁ oxides, aimed at enhancing optical properties and antibacterial efficacy for biomedical and optoelectronic applications. Structural analysis through FT-IR, XRD, and XPS confirmed successful integration of the oxides into the PVA matrix. The nanocomposite exhibited a notable reducing in the optical band gap from 3.35 eV (PVA) to 2.75 eV (PVA-Te₂O₃-Cr₂O₃-Pr₆O₁₁), indicating improved crystalline ordering. Dielectric analysis revealed stability across frequencies, with a refractive index increase from 2.0 (pure PVA) to 2.38 (PVA-Te₂O₃-Cr₂O₃-Pr₆O₁₁), highlighting potential for electronic applications. Furthermore, the PVA-Te₂O₃-Cr₂O₃-Pr₆O₁₁ composite exhibited strong antibacterial activity, with inhibition zones of 15.5 ± 0.4 mm against E. coli and 14.2 ± 0.4 mm against S. aureus, outperforming other tested compositions. These findings suggest that this nanocomposite could be effectively utilized in biomedical devices and optoelectronics.

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来源期刊

Inorganic Chemistry Communications 化学-无机化学与核化学

CiteScore

5.50

自引率

7.90%

发文量

1013

审稿时长

53 days

期刊介绍： Launched in January 1998, Inorganic Chemistry Communications is an international journal dedicated to the rapid publication of short communications in the major areas of inorganic, organometallic and supramolecular chemistry. Topics include synthetic and reaction chemistry, kinetics and mechanisms of reactions, bioinorganic chemistry, photochemistry and the use of metal and organometallic compounds in stoichiometric and catalytic synthesis or organic compounds.