Preparation and Characterization of Zinc Oxide Nanoparticles Using Leaf Extract of Sambucus ebulus

Abstract

Plants are one of the best sources to obtain a variety of natural surfactants in the field of green synthesizing material. Sambucus ebulus, which has unique natural properties, has been considered a promising material in traditional Asian medicine. In this context, zinc oxide nanoparticles (ZnO NPs) were prepared using S. ebulus leaf extract, and their physicochemical properties were investigated. X-ray diffraction (XRD) results revealed that the prepared ZnO NPs are highly crystalline, having a wurtzite crystal structure. The average crystallite size of prepared NPs was around 17 nm. Green synthesized NPs showed excellent absorption in the UV region as well as strong yellow-orange emission at room temperature. Prepared nanoparticles exhibited good antibacterial activity against various organisms and a passable photocatalytic degradation of methylene blue dye pollutants. The obtained results demonstrated that the biosynthesized ZnO NPs reveal interesting characteristics for various potential applications in the future.

Green Synthesis of Zinc Oxide Nanoparticles (ZnO-NPs) Using Arthrospira platensis (Class: Cyanophyceae) and Evaluation of their Biomedical Activities

“…Zn 2p ( Figure 6 E) have several peaks: two for ZnO 2P 3/2 at 1021.4 eV and 1023.25 eV, another two peaks for ZnO 2p 1/2 at 1044.2 eV and 1045.55 eV, while satellite peaks verifying the oxide species appeared at 1036.25, 1037.3, 1039, 1040.05, and 1041.65 eV. These spectra indicate the presence of Zn as Zn (II) oxide [ 56 ].…”

Biomimetic Synthesis, Characterization, and Evaluation of Fluorescence Resonance Energy Transfer, Photoluminescence, and Photocatalytic Activity of Zinc Oxide Nanoparticles

“…The identification of physicochemical properties of the NPs, such as size, shape, surface roughness, agglomeration, and aggregation state, is important, as they play a vital role in optoelectrical, biomedical, environmental applications, as well as for the purpose of minimizing toxicity and biological fate [20,47]. The analysis was carried out in different magnitudes (15,000, 25,000, and 50,000) at 10,000 kV, and the obtained SEM micrographs of phytosynthesized ZnO NPs at 25,000 are shown in Figure 3 (SD in Figures 1-3 for 15,000 and 50,000).…”

“…Due to these properties, ZnO NPs is one of the most promising materials with diverse areas of application in developing piezoelectronics and optoelectronic devices [2,[12][13][14][15][16]. Several different physical and chemical methodologies, such as hydrothermal, sonochemical, sol-gel, solvothermal, microemulsion, laser ablation, homogeneous precipitation, thermal decomposition, and microwave irradiation, were developed to synthesize ZnO NPs with different morphologies [9,[17][18][19][20][21][22]. However, these physio-chemical methods require expensive and toxic chemicals as capping agents, hazardous organic solvents, long reflux time of reaction, and toxic byproducts, subsequently leading to eco-toxicity [8,[23][24][25].…”

Green Synthesized ZnO Nanoparticles Mediated by Mentha Spicata Extract Induce Plant Systemic Resistance against Tobacco Mosaic Virus

“…The peaks at 1636, 1559, 1514, and 1395 cm −1 have been assigned to C=C stretch of alkenes or C=O stretch of amides [52,53]. The bands at 1087 and 1033 are attributed to stretching vibrations of the C-O bond from biomolecules that existed in the leaf extract [54,56]. Additionally, peaks at 932, 840, 774 and 714 could correspond to C-N stretching amine groups [57].…”

“…(Figure 2). The broad peak at 3245 cm −1 indicated the presence of hydrogen-bonded groups and could be corresponded to hydroxyl groups (O-H) stretching out from the phenolic compounds that were existed in the plant extract [52][53][54]; likewise, the peaks at 3942-3744 cm −1 representing stretching vibration of O-H group [55,56]. The band at 2362 corresponded to N-H bond of the primary and secondary amides.…”