Amar Nath Yadav, Pallavi Singh, Shiva Upadhyay, U. P. Tyagi, Ashwani Kumar Singh, Pushpa Singh, Amit Srivastava
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引用次数: 0
摘要
尽管对有效且环保的抗菌剂的需求与日俱增,但此类材料的合成方法往往涉及有毒化学品和复杂的程序。目前迫切需要一种可持续的方法来合成具有强效抗菌特性的纳米粒子。本研究旨在利用阿木拉提取物开发一种银纳米粒子(Ag NPs)的绿色合成方法,从而弥补这一空白。粉末 X 射线衍射 (XRD)、紫外可见吸收光谱和透射电子显微镜 (TEM) 证明,可以通过环保工艺合成出尺寸为 15-30 纳米的面心立方银纳米粒子。此外,还借助示意图详细讨论了 Ag NPs 的形成机理。此外,还进一步测试了源自阿木拉的 Ag NPs 对两种不同抗菌菌株的抗菌活性:大肠杆菌(E. coli)和金黄色葡萄球菌(S. aureus)。这些 NPs 表现出极佳的生物相容性,在 Ag NPs 为 100 μg/mL 和生长时间为 30 分钟时,两种菌株的生长都减少了约 90%。这些结果表明,Ag NPs 作为一种抗菌材料,在广泛的生物医学应用中具有令人难以置信的应用保证。
Amla (Emblica officinalis)-Derived Bionanosilver (Ag NPs) for Excellent Antibacterial Activity
Despite the growing need for effective and environmentally friendly antimicrobial agents, the synthesis methods for such materials often involve toxic chemicals and complex procedures. There is a pressing need for a sustainable approach to synthesize nanoparticles with potent antibacterial properties. This study aims to address this gap by developing a green synthesis method for silver nanoparticles (Ag NPs) using Amla extract. Powder X-ray diffraction (XRD), UV–Vis absorption spectroscopy, and Transmission Electron Microscopy (TEM) demonstrated that face-centered cubic Ag NPs with sizes in the range of 15–30 nm can be synthesized through an environmentally friendly process. Further, the formation mechanism of Ag NPs has been discussed in detail with the help of schematic diagrams. The Amla-derived Ag NPs have been further tested for their antibacterial activity against two different antibacterial strains: Escherichia coli (E. coli) and Staphylococcus aureus (S. aureus) using the plate count method. The NPs showed excellent biocompatibility where approximately 90% of growth reduction have been found for both strains at 100 μg/mL of Ag NPs and growth time of 30 min. These outcomes exhibited that Ag NPs, as a kind of antibacterial material, had an incredible guarantee for application in a wide scope of biomedical applications.
期刊介绍:
Plasmonics is an international forum for the publication of peer-reviewed leading-edge original articles that both advance and report our knowledge base and practice of the interactions of free-metal electrons, Plasmons.
Topics covered include notable advances in the theory, Physics, and applications of surface plasmons in metals, to the rapidly emerging areas of nanotechnology, biophotonics, sensing, biochemistry and medicine. Topics, including the theory, synthesis and optical properties of noble metal nanostructures, patterned surfaces or materials, continuous or grated surfaces, devices, or wires for their multifarious applications are particularly welcome. Typical applications might include but are not limited to, surface enhanced spectroscopic properties, such as Raman scattering or fluorescence, as well developments in techniques such as surface plasmon resonance and near-field scanning optical microscopy.