镍掺杂钴铁氧体的光学响应和抗菌活性的综合研究

IF 1 4区 材料科学 Q4 MATERIALS SCIENCE, MULTIDISCIPLINARY Digest Journal of Nanomaterials and Biostructures Pub Date : 2023-07-01 DOI:10.15251/djnb.2023.183.975
F. Ullah, I. Ahmad, S. Zaib, M. Abrar, M. Khalil, M. Ebdah, S. Ramay, M. Saleem
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引用次数: 0

摘要

在目前的研究中,使用众所周知的水热方法制备了Ni掺杂的CoFe2O4纳米颗粒。通过最新的分析技术对其结构、形态、光学和抗菌活性进行了分析。观察到Fd立方尖晶石晶体结构随合成样品的晶粒尺寸和晶格参数的变化而变化。分别从场发射扫描电子显微镜和能量色散x射线分析中观察到了存在预期元素的球形和均匀纳米颗粒的生长。紫外-可见吸收光谱在200-320nm的波长范围内显示出宽的吸收带。随着掺杂剂浓度从2%增加到6%,观察到能带隙从2.98eV显著增加到3.56eV。采用琼脂扩散法研究了样品对金黄色葡萄球菌、铜绿假单胞菌和大肠杆菌的抗菌活性。纯和Ni掺杂的CoFe2O4表现出最大抑制区(3-25mm),表明这些材料对细菌耐药性是有效的。此外,通过在钴位点取代Ni来增强抑制区的价值,这表明它是生物医学应用的潜在候选者,并且可以对不同细菌的高耐药性非常有效。
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A comprehensive study on Ni-Doped cobalt ferrites for optical response and anti-bacterial activity
In the current study, Ni doped CoFe2O4 nanoparticles were fabricated using well-known hydrothermal method. The structural, morphological, optical, and antibacterial activity were analyzed through the latest analytical techniques. The Fd-cubic spinel crystal structure was observed with variations in crystallite sizes and lattice parameters of synthesized samples. The growth of spherical and uniform nanoparticles with the presence of expected elements are observed from field emission scanning electron microscopy and energy dispersive x-rays analysis, respectively. A broad absorption band was shown in UV-visible absorption spectroscopy in the wavelength range of 200-320 nm. A significant increase in the energy band gap was observed from 2.98 eV to 3.56 eV as the concentration of dopant increased from 2% to 6%. The antibacterial activities of the samples were investigated against Staph aureus, Pseudomonas aeruginosa and E. Coli through the well-known Agar well diffusion method. The pure and Ni-doped CoFe2O4 exhibits a maximum zone of inhibition (3-25 mm), proposing that these materials are efficient against bacterial resistance. Further, the enhancement in value of the inhibition zone by substitution of Ni at cobalt sites recommended that it is a potential candidate for biomedical applications and can be highly effective against the high resistance of different bacteria.
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来源期刊
Digest Journal of Nanomaterials and Biostructures
Digest Journal of Nanomaterials and Biostructures 工程技术-材料科学:综合
CiteScore
1.50
自引率
22.20%
发文量
116
审稿时长
4.3 months
期刊介绍: Under the aegis of the Academy of Romanian Scientists Edited by: -Virtual Institute of Physics operated by Virtual Company of Physics.
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