利用蓖麻叶提取物通过简便绿色方法合成 ZnO NRs 及其生物活性。
A facile green approach of ZnO NRs synthesized via Ricinus communis L. leaf extract for Biological activities.
机构信息
Department of Physics, Bharathiar University, Coimbatore, Tamilnadu, India.
Department of Chemistry, College of Natural Sciences, Yeungnam University, Gyeongsan, Gyeongbuk 38541, Republic of Korea.
出版信息
Mater Sci Eng C Mater Biol Appl. 2019 Oct;103:109844. doi: 10.1016/j.msec.2019.109844. Epub 2019 May 31.
In this present work, Zinc oxide (ZnO) nanorods (NRs) were synthesized by bio-mediated approach. The Ricinus communis L. leaf extract act as reducing as well as capping agent for the synthesize of ZnO NRs. The crystalline nature and phase purity of the as prepared ZnO NRs were identified by the Powder X-ray Diffraction (PXRD) studies. The formation of ZnO NRs was determined by the optical analysis. The morphological studies of the synthesized materials were identified by the Field Emission Scanning Electron Microscopy (FESEM) analysis. In this investigation, the antibacterial activity of ZnO NRs were tested against both Gram positive (Staphylococcus aureus, Bacillus subtilis) and Gram negative (Salmonella paratyphi, Escherichia coli) bacteria by agar disc diffusion method. In addition, the green synthesized ZnO NRs exhibits excellent antimicrobial activity than the chemically synthesized method.
在本工作中，采用生物介导的方法合成了氧化锌（ZnO）纳米棒（NRs）。蓖麻叶提取物既作为还原试剂，也作为 ZnO NRs 合成的封端试剂。通过粉末 X 射线衍射（PXRD）研究确定了所制备的 ZnO NRs 的晶体性质和相纯度。通过光学分析确定了 ZnO NRs 的形成。通过场发射扫描电子显微镜（FESEM）分析确定了合成材料的形态研究。在这项研究中，通过琼脂圆盘扩散法测试了 ZnO NRs 对革兰氏阳性（金黄色葡萄球菌、枯草芽孢杆菌）和革兰氏阴性（副伤寒沙门氏菌、大肠杆菌）细菌的抗菌活性。此外，绿色合成的 ZnO NRs 表现出比化学合成方法更好的抗菌活性。
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