Pervaiz Seemab, Bibi Iram, Rehman Wajid, Alotaibi Hadil Faris, Obaidullah Ahmad J, Rasheed Liaqat, M Alanazi Mohammed
Department of Chemistry, Hazara University, Mansehra 21120, Pakistan.
Department of Conservation Studies, Hazara University, Mansehra 21120, Pakistan.
Antibiotics (Basel). 2023 Jun 22;12(7):1090. doi: 10.3390/antibiotics12071090.
The particle size at the nanometric level allows the manifestation of remarkable properties, chiefly due to changes in surface-to-volume ratio. This study is attributed to the novel green synthesis of nano silver by using essential oils as a capping and reducing agent. Clove oil, cinnamon oil, and cardamom oil were selected for the eco-friendly and low-cost fabrication of silver nanoparticles. The prepared nanoparticles were characterized by photoluminescence spectroscopy, FT-IR spectroscopy, X-Ray diffraction, energy dispersive X-ray spectroscopy, dynamic laser light scattering, thermogravimetric analysis, and transmission electron microscopy. It was found that samples prepared by using cinnamon oil (20 nm) and cardamom oil (12 nm) had smaller particle sizes as compared to those synthesized by using clove oil (45 nm). All the prepared samples exhibited very strong antimicrobial activities with a clear zone of inhibition (6-24 mm) against , and Very resilient photocatalytic activities of the samples were observed against Allura red and fast green dyes. It was concluded that the cinnamon oil-based system is the best size reducer and size homogenizer (less chances of agglomeration) as compared to clove oil and cardamom oil (more chances of agglomeration) for the synthesis of silver nanoparticles.
纳米级的粒径能够使显著的特性得以显现，这主要归因于表面体积比的变化。本研究致力于通过使用香精油作为封端剂和还原剂来进行新型绿色合成纳米银。选择丁香油、肉桂油和豆蔻油用于银纳米颗粒的环保且低成本制备。通过光致发光光谱、傅里叶变换红外光谱、X射线衍射、能量色散X射线光谱、动态激光散射、热重分析和透射电子显微镜对制备的纳米颗粒进行了表征。结果发现，与使用丁香油（45纳米）合成的样品相比，使用肉桂油（20纳米）和豆蔻油（12纳米）制备的样品粒径更小。所有制备的样品均表现出非常强的抗菌活性，对大肠杆菌、金黄色葡萄球菌和枯草芽孢杆菌有明显的抑制圈（6 - 24毫米）。观察到样品对诱惑红和固绿染料具有很强的光催化活性。得出的结论是，与丁香油和豆蔻油（团聚可能性更大）相比，肉桂油基体系是合成银纳米颗粒时最佳的粒径减小剂和粒径均化剂（团聚可能性更小）。
