Attractive study of the physical properties of silver iron oxide nanoparticles for biomedical applications
Attractive study of the physical properties of silver iron oxide nanoparticles for biomedical applications
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用于生物医学应用的银铁氧化物纳米颗粒物理性质的有吸引力的研究
DOI：
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发表时间：
2023
期刊：
影响因子：
2.9
通讯作者：
H. K. Abdelsalam
中科院分区：
文献类型：
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作者：
Asmaa. A. H. El;H. K. Abdelsalam
采用快速自燃技术在 400 °C 下成功合成了化学式为 Ag2Fe2O4（Ag/Fe 比 = 1/1）和 Ag0.5Fe2.5O4（Ag/Fe 比 = 1/5）的新型配比银铁纳米颗粒。使用 XRD（X 射线衍射）、AFM（原子力显微镜）、FESEM（场发射扫描电子显微镜）和 FTIR（傅里叶变换红外）分析研究结构特性。通过 XRD 分析确定的 Ag0.5Fe2.5O4 和 Ag2Fe2O4 纳米粒子的纳米尺寸范围为 56.6–71.1 nm。使用 AFM 和 FESEM 分析形貌，确认两个样品的粒径均为球形和纳米级且团聚。进行傅里叶变换红外（FTIR）分析以确认纳米样品的形成。使用振动样品磁力计测量这两个样品以研究它们的磁性。通过增加铁离子的浓度，Ag0.5Fe2.5O4 纳米颗粒的饱和磁化强度（Ms）比 Ag2Fe2O4 纳米颗粒增加了 5 倍。此外，饱和磁化强度与抗菌活性之间存在关系，其中高(Ms)表示高抗菌活性。因此，Ag0.5Fe2.5O4对受试细菌具有高(Ms)和高功效。然而，Ag2Fe2O4 对白色念珠菌表现出高活性。此外，通过磁性测量测量了高频应用，表明这两个样品都可以在无线电波范围内的甚高频（VHF）下应用。最后，这两个样品都可能是抗菌材料，特别是 Ag0.5Fe2.5O4 纳米颗粒。然而，强烈建议使用 Ag2Fe2O4 纳米粒子来对抗白色念珠菌。
Novel ratios of silver iron nanoparticles with the chemical formulas Ag2Fe2O4 with Ag/Fe ratio = 1/1 and Ag0.5Fe2.5O4 with Ag/Fe ratio = 1/5 were successfully synthesized using a flash auto-combustion technique at 400 °C. Structural properties were studied using XRD (x-ray diffraction), AFM (Atomic Force Microscopy), FESEM (Field Emission Scanning Electron Microscopy), and FTIR (Fourier transform infrared) analyses. The nanosize range determined from XRD analysis lies in 56.6–71.1 nm for Ag0.5Fe2.5O4 and Ag2Fe2O4 nanoparticles. The morphology was analyzed using AFM and FESEM to confirm that the particle size of both samples was spherical and nanosized with agglomeration. Fourier transform infrared (FTIR) analysis was performed to confirm nano-samples’ formation. Both samples were measured using a vibrating sample magnetometer to study their magnetism. By increasing the concentration of iron ions, the saturation magnetization (Ms) increased 5-fold for Ag0.5Fe2.5O4 nanoparticles compared with Ag2Fe2O4 nanoparticles. Moreover, there is a relation between saturation magnetization and antimicrobial activity, in which high (Ms) gives high antibacterial activity. Thus, Ag0.5Fe2.5O4 had a high (Ms) and high efficacy against the tested bacteria. However, Ag2Fe2O4 showed high activity against Candida albicans. Moreover, a high-frequency application was measured from the magnetic measurements, showing that both samples could be applied at a very high frequency (VHF) in the radio wave range. Finally, both samples could be antibacterial materials, particularly Ag0.5Fe2.5O4 nanoparticles. However, Ag2Fe2O4 nanoparticles are strongly recommended for antifungal activity against Candida albicans.
影响因子：
5.4
作者：
Revie NM;Iyer KR;Robbins N;Cowen LE
通讯作者：
Cowen LE