In this investigation, Arecanut Seed Extract-Silver Nanoparticles (ASE-AgNPs) was accomplished by using plant extract as capping and reducing agents within 90 seconds of reaction time without any rigorous conditions (confirmed by AAS study). The change of color from red to dark brown was observed in the reaction mixture during the synthesis process and it was characterized by UV-Visible, Fourier Transform Infrared (FT-IR), Scanning Electron Microscopy (SEM), and X-ray diffraction (XRD) techniques. Spectroscopic results show that, the bio-species present in the aqueous extract of arecanut seed such as epicatechin (major constituent), rutin, procyanidin B1, gallic acid, catechin, leucocyanidin, arecolidine, isoguvacine, guvacine, guvacoline, arecaidine and arecoline are responsible for the reduction of silver cations (Ag) from silver nitrate (AgNO) and stability of colloidal silver nanoparticles. SEM and XRD techniques revealed the formation of ASE-AgNPs with different size and most commonly spherical shape. The synthesized ASE-AgNPs were stable and no degradation was observed up to 75 days at 303 K. The influence of ASE concentration, exposure time, solution temperature and pH rate of reaction is also investigated. The results show that, the particle size of ASE-AgNPs is large in acidic media compared to alkali media. Theoretical simulations based on the Monte Carlo (MC) simulation and Quantum chemical approach explores the electron donation behavior of ASE. Further, both ASE and ASE-AgNPs exhibits robust antioxidant properties found by hydrogen peroxide assay and DPPH assay. Compared to ASE, ASE-AgNPs shows superior antioxidant property. This economic and environmental benign route was the best option for the production of nanocolloids in large scale for the applications in pharmaceutical and chemical industries.

中文翻译：

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利用槟榔籽提取物绿色合成银纳米颗粒及其抗氧化功效

在这项研究中，利用植物提取物作为封端剂和还原剂，在没有任何严格条件的情况下，在 90 秒的反应时间内完成了槟榔籽提取物-银纳米颗粒 (ASE-AgNPs)（经 AAS 研究证实）。在合成过程中观察到反应混合物的颜色从红色变为深棕色，并通过紫外-可见光、傅里叶变换红外（FT-IR）、扫描电子显微镜（SEM）和X射线衍射进行了表征（ XRD）技术。光谱结果表明，存在于槟榔种子水提取物中的生物物种，如表儿茶素（主要成分）、芦丁、原花青素 B1、没食子酸、儿茶素、无色花青素、槟榔碱、异鳄梨碱、番石榴碱、番石榴碱、槟榔碱和槟榔碱是造成这种现象的原因。用于从硝酸银 (AgNO) 中还原银阳离子 (Ag) 以及胶体银纳米颗粒的稳定性。SEM 和 XRD 技术揭示了不同尺寸和最常见球形的 ASE-AgNP 的形成。合成的 ASE-AgNP 很稳定，在 303 K 下长达 75 天没有观察到降解。还研究了 ASE 浓度、暴露时间、溶液温度和反应 pH 速率的影响。结果表明，与碱性介质相比，在酸性介质中ASE-AgNPs的粒径较大。基于蒙特卡罗 (MC) 模拟和量子化学方法的理论模拟探讨了 ASE 的电子捐赠行为。此外，通过过氧化氢测定和 DPPH 测定发现，ASE 和 ASE-AgNP 均表现出强大的抗氧化特性。与ASE相比，ASE-AgNPs表现出更优异的抗氧化性能。这种经济和环境友好的路线是大规模生产纳米胶体用于制药和化学工业的最佳选择。