Spectroscopic and antibacterial activities of cobalt and nickel nanoparticles: a comparative analysis

IF 2.5 4区化学 Q3 CHEMISTRY, ANALYTICAL

Journal of Analytical Science and Technology Pub Date : 2024-06-04 DOI:10.1186/s40543-024-00446-0

Sheriff A. Balogun, Tesleem O. Abolarinwa, Funmilola A. Adesanya, Collins N. Ateba, Omolola E. Fayemi

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Abstract

This study aimed to compare the spectroscopy, morphological, electrocatalytic properties, and antibacterial activities of cobalt nanoparticles (CoNPs) with nickel nanoparticles (NiNPs). Cobalt nanoparticles and NiNPs were prepared via a chemical reduction approach and characterized utilizing transmission electron microscopy (TEM), energy-dispersive X-ray (EDX), and X-ray diffraction (XRD) techniques. The result from XRD and TEM analysis revealed that the synthesized nanoparticles exhibit face-centered cubic with smooth spherical shape, having average particles size of 12 nm (NiNPs) and 18 nm (CoNPs). The electrochemical properties of the nanoparticles were examined via cyclic voltammetry (CV) and electrochemical impedance spectroscopy (EIS) techniques. The CV results showed that GCE-Ni (35.6 μA) has a higher current response compared to GCE-Co (10.5 μA). The EIS analysis revealed that GCE-Ni (1.39 KΩ) has faster electron transport capability compared to GCE-Co (2.99 KΩ) as indicated in their Rct values. The power density of the synthesized nanoparticles was obtained from their "knee" frequency (f°) values, with GCE-Ni (3.16 Hz) having higher f° values compared to GCE-Co (2.00 Hz). The antibacterial activity of the nanoparticles was evaluated against multidrug-resistant Escherichia coli O157, Escherichia coli O177, Salmonella enterica, Staphylococcus aureus, and Vibrio cholerae. The result from the antibacterial study revealed that at low concentrations both CoNPs and NiNPs have significant antibacterial activities against E. coli O157, E. coli O177, S. enterica, S. aureus, and V. cholerae. NiNPs showed better antibacterial activities at low concentrations of 61.5, 61.5, 125, 61.5, and 125 µg/mL compared to CoNPs with minimum inhibitory concentrations of 125, 125, 250, 61.5, and 125 µg/mL against E. coli O157, E. coli O177, S. enterica, S. aureus, and V. cholerae, respectively. These promising antibacterial activities emphasize the potential of CoNPs and NiNPs as effective antibacterial agents, which could aid in the development of novel antibacterial medicines.

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钴和镍纳米粒子的光谱和抗菌活性：对比分析

本研究旨在比较钴纳米颗粒（CoNPs）与镍纳米颗粒（NiNPs）的光谱、形态、电催化特性和抗菌活性。通过化学还原法制备了钴纳米颗粒和镍纳米颗粒，并利用透射电子显微镜（TEM）、能量色散 X 射线（EDX）和 X 射线衍射（XRD）技术对其进行了表征。XRD 和 TEM 分析结果表明，合成的纳米粒子呈面心立方、光滑球形，平均粒径为 12 nm（NiNPs）和 18 nm（CoNPs）。通过循环伏安法（CV）和电化学阻抗谱（EIS）技术考察了纳米粒子的电化学特性。CV 结果显示，GCE-Ni（35.6 μA）的电流响应高于 GCE-Co（10.5 μA）。EIS 分析表明，GCE-Ni（1.39 KΩ）与 GCE-Co（2.99 KΩ）相比具有更快的电子传输能力，这体现在它们的 Rct 值上。合成纳米粒子的功率密度可从它们的 "膝 "频率 (f°) 值获得，与 GCE-Co (2.00 Hz) 相比，GCE-Ni（3.16 Hz）的 f° 值更高。评估了纳米粒子对耐多药大肠杆菌 O157、大肠杆菌 O177、肠炎沙门氏菌、金黄色葡萄球菌和霍乱弧菌的抗菌活性。抗菌研究结果表明，在低浓度下，CoNPs 和 NiNPs 对大肠杆菌 O157、大肠杆菌 O177、肠道沙门氏菌、金黄色葡萄球菌和霍乱弧菌都有显著的抗菌活性。与 CoNPs（对大肠杆菌 O157、大肠杆菌 O177、肠杆菌、金黄色葡萄球菌和霍乱弧菌的最小抑菌浓度分别为 125、125、250、61.5 和 125 微克/毫升）相比，NiNPs 在 61.5、61.5、125、61.5 和 125 微克/毫升的低浓度下显示出更好的抗菌活性。这些良好的抗菌活性凸显了 CoNPs 和 NiNPs 作为有效抗菌剂的潜力，有助于新型抗菌药物的开发。

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

Journal of Analytical Science and Technology Environmental Science-General Environmental Science

CiteScore

4.00

自引率

4.20%

发文量

审稿时长

13 weeks

期刊介绍： The Journal of Analytical Science and Technology (JAST) is a fully open access peer-reviewed scientific journal published under the brand SpringerOpen. JAST was launched by Korea Basic Science Institute in 2010. JAST publishes original research and review articles on all aspects of analytical principles, techniques, methods, procedures, and equipment. JAST’s vision is to be an internationally influential and widely read analytical science journal. Our mission is to inform and stimulate researchers to make significant professional achievements in science. We aim to provide scientists, researchers, and students worldwide with unlimited access to the latest advances of the analytical sciences.