Pethakamsetty Lakshmi, Kothapenta Kalyani, Nammi Hanumanta Rao, Ruddaraju Lakshmi Kalyani, Kollu Pratap, Yoon Soon Gil, Pammi Sri Venkata Narayana
Department of Microbiology, College of Science and Technology, Andhra University, Visakhapatnam 530003, India.
DST-PURSE Programme Advanced Analytical Laboratory, Andhra University, Visakhapatnam 530003, India.
J Environ Sci (China). 2017 May;55:157-163. doi: 10.1016/j.jes.2016.04.027. Epub 2016 Aug 26.
The current research study focuses to formulate the biosynthesized silver nanoparticles for the first time from silver acetate using methanolic root extracts of Diospyros sylvatica, a member of family Ebenaceae. TEM analysis revealed the average diameter of Ag NPs around 8nm which is in good agreement with the average crystallite size (10nm) calculated from X-ray Diffraction (XRD) analysis. Further the study has been extended to the antimicrobial activity against test pathogenic Gram (+) ve, Gram (-) ve bacterial and fungal strains. The bioinspired Ag-NP showed promising activity against all the tested bacterial strains and the activity was enhanced with increased dosage levels.
当前的研究首次聚焦于使用柿科植物乌木的甲醇根提取物从醋酸银中制备生物合成的银纳米颗粒。透射电子显微镜(TEM)分析显示银纳米颗粒的平均直径约为8纳米,这与通过X射线衍射(XRD)分析计算出的平均微晶尺寸(10纳米)高度吻合。此外,该研究还扩展到了对受试致病性革兰氏阳性、革兰氏阴性细菌和真菌菌株的抗菌活性。这种受生物启发的银纳米颗粒对所有受试细菌菌株都显示出有前景的活性,并且随着剂量水平的增加活性增强。