PDF(Pubmed)
Abstract：
Silver nanoparticles (Ag NPs) play a pivotal role in the current research landscape due to their extensive applications in engineering, biotechnology, and industry. The aim is to use fig (Ficus hispida Linn. f.) extract (FE) for eco-friendly Ag NPs synthesis, followed by detailed characterization, antibacterial testing, and investigation of bioelectricity generation. This study focuses on the crystallographic features and nanostructures of Ag NPs synthesized from FE. Locally sourced fig was boiled in deionized water, cooled, and doubly filtered. A color change in 45 mL 0.005 M AgNO3 and 5 mL FE after 40 min confirmed the bio-reduction of silver ions to Ag NPs. Acting as a reducing and capping agent, the fig extract ensures a green and sustainable process. Various analyses, including UV-vis absorption spectrophotometry (UV), X-ray diffraction (XRD), Fourier-transform infrared spectroscopy (FTIR), Field emission scanning electron microscopy (FESEM), Energy dispersive X-ray spectroscopy (EDX) and Transmission electron microscopy (TEM) were employed to characterize the synthesized nanoparticles, and Gas chromatography-mass spectrometry (GC-MS) analysis of the fig extract revealed the presence of eleven chemicals. Notably, the Ag NPs exhibited a surface plasmon resonance (SPR) band at 418 nm, confirmed by UV analysis, while FTIR and XRD results highlighted the presence of active functional groups in FE and the crystalline nature of Ag NPs respectively. With an average particle size of 44.57 nm determined by FESEM and a crystalline size of 35.87 nm determined by XRD, the nanoparticles showed strong antibacterial activities against Staphylococcus epidermidis and Escherichia coli. Most importantly, fig fruit extract has been used as the bio-electrolyte solution to generate electricity for the first time in this report. The findings of this report can be the headway of nano-biotechnology in medicinal and device applications.
摘要：
银纳米粒子(AgNPs)由于其在工程中的广泛应用,生物技术，和工业。目的是使用无花果(FicushispidaLinn。f.)用于生态友好型AgNPs合成的提取物(FE)，接下来是详细的表征，抗菌测试，和生物发电的调查。这项研究的重点是由FE合成的AgNP的晶体学特征和纳米结构。本地来源的无花果在去离子水中煮沸，冷却,加倍过滤。40分钟后，45mL0.005MAgNO3和5mLFE中的颜色变化证实了银离子生物还原为AgNP。作为还原剂和封端剂，无花果提取物确保绿色和可持续的过程。各种分析，包括紫外-可见吸收分光光度法(UV)，X射线衍射(XRD)傅里叶变换红外光谱(FTIR),场发射扫描电子显微镜（FESEM），采用能量色散X射线光谱(EDX)和透射电子显微镜(TEM)对合成的纳米粒子进行了表征,无花果提取物的气相色谱-质谱（GC-MS）分析显示存在11种化学物质。值得注意的是,AgNP在418nm处表现出表面等离子体共振（SPR）带，通过紫外线分析证实，而FTIR和XRD结果分别强调了FE中活性官能团的存在和AgNP的结晶性质。FESEM测定的平均粒径为44.57nm,XRD测定的平均粒径为35.87nm,纳米粒子对表皮葡萄球菌和大肠杆菌均有较强的抗菌活性。最重要的是,本报告首次将无花果提取物用作生物电解质溶液发电。本报告的发现可能是纳米生物技术在医学和设备应用中的进展。
