Optimization of silver nanoparticles synthesis using Elaeis guineensis Jacq. residue extract and their antibacterial activity against Pseudomonas aeruginosa

IF 2 Q2 MATERIALS SCIENCE, MULTIDISCIPLINARY
Jorge Benjamín Diaz-López, Diana De la Cruz-Gumeta, Gabriela Alvarado-Arguello, Oscar Rico-Domínguez, Evelyn Valdez-Rodríguez, Karina Hernández-Ovalle, María Celina Luján-Hidalgo, Rosa Isela Cruz-Rodríguez, Rocío Meza-Gordillo
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引用次数: 0

Abstract

This study explores the green synthesis of silver nanoparticles (Ag NPs) using oil palm (Elaeis guineensis) residue as a reducing agent. The synthesis was optimized by analyzing the effects of pH, silver nitrate (AgNO3) concentration, and extract-to-AgNO3 ratios using a Taguchi L9 design. The highest yield theorist (72%) was achieved under the conditions of pH 10, 100 mM AgNO3 concentration, and a 2:3 extract-to-AgNO3 ratio. The synthesized Ag-NPs were characterized through UV–Vis (400–450 nm), Fourier-transform infrared spectroscopy (FT-IR, 1370 cm-1, attributed to the nitro group), dynamic light scattering (DLS, 10.07 nm average particle size with a hydrodynamic diameter (Dh) of 235.82 nm in a neutral pH), zeta potential (− 18.33 mV), scanning electron microscopy (SEM), and X-ray diffraction (XRD). Antimicrobial testing against Pseudomonas aeruginosa revealed antibacterial activity, making these nanoparticles a promising alternative to traditional antibiotics.

Graphical Abstract

利用豚鼠兔合成纳米银颗粒的优化。残渣提取物及其对铜绿假单胞菌的抑菌活性
本研究探讨了以油棕(Elaeis guineensis)残渣为还原剂绿色合成纳米银粒子(Ag NPs)的方法。采用Taguchi L9设计,通过分析pH、硝酸银(AgNO3)浓度和萃取物与AgNO3比的影响,对合成工艺进行了优化。在pH值为10、AgNO3浓度为100 mM、萃取物与AgNO3的比例为2:3的条件下,得率最高(72%)。通过紫外-可见光谱(400-450 nm)、傅里叶变换红外光谱(FT-IR, 1370 cm-1,归属于硝基)、动态光散射(DLS,平均粒径10.07 nm,中性pH下水动力直径(Dh)为235.82 nm)、zeta电位(−18.33 mV)、扫描电镜(SEM)和x射线衍射(XRD)对合成的Ag-NPs进行了表征。对铜绿假单胞菌的抗菌测试显示出抗菌活性,使这些纳米颗粒成为传统抗生素的有希望的替代品。图形抽象
本文章由计算机程序翻译,如有差异,请以英文原文为准。
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来源期刊
CiteScore
8.60
自引率
0.00%
发文量
1
审稿时长
13 weeks
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