Green Synthesis of ZnO Nanoparticles Using Prosopis fracta Extract with Two Solvents and Study of Their Biological Activities
1Falah M. Fakhree, Kamal M. Mahmoud
The main goal of this paper is a green synthesis of zinc oxide nanoparticles with extracts of Prosopis fracta (growing in the Iraqi Kurdistan region) using two solvents, first with water (Zn-NPs-W) and second with methanol (Zn-NPs-M). The prepared nanoparticles characterizations were confirmed by UV-Vis absorption spectrophotometry; Fourier transforms infrared spectroscopy (FT-IR); scanning electron microscopy (SEM); X-ray Diffraction (XRD); and Transmission Electron Microscopy (TEM), in order to determine which solvent is more favorable in terms of particle size, particle agglomeration, and particle separation. The particle size of Zn-NPs-W was found to be 25 nm with a rod shape, while Zn-NPs-M had a particle size of 35 nm which is a wide range and gives a deformed rod shape. Further, it has been shown after testing the antibacterial activity of the two different sizes of the Zn-NPs (25, 35) nm against both gram-positive bacteria such as micrococcus species (M. species) Staphylo epidermidis (S.epidermidis); gram-negative such as Acinetobacter baumannii (A. baumannii), Pseudomonas aeruinosa (P. aeruinosa), and yeast Candida Albicans (C.albicans), with a different effect on bacteria. The most critical advantages of this process are the environmentally friendly and fast synthesis for both Zn-NPs-W and ZnNPs-M.
ZnO- nanoparticles, Prosopis fracta, Green Synthesis, Biological Activity.