Silver oxide nanoparticles (Ag2O NPs) in the aqueous colloidal state were synthesized using the green method. Aqueous silver nitrate was prepared and mixed jointly with an aqueous extract of Lawsonia inermis (henna) leaf and heated with stirring at 75 °C for 1h. Then, an aqueous colloidal solution of Ag2O NPs with a dark brown colour is forming. The physicochemical characterization of Ag2O NPs was studied using different techniques. A polycrystalline structure of (Ag2O/Ag) in face-centred cubic and cubic phases was revealing via grazing incident X-ray diffraction (GIXRD) patterns. Energy-dispersive X-ray analysis (EDX) spectra confirmed GIXRD results through peaks corresponding to the silver and oxygen elements making up the accurate composition of the silver oxide. UV-Vis absorbance peak of the localized surface plasmon resonance (SPR) appeared at the visible region and exhibited a blueshift at ∼425 nm with an energy bandgap ∼2.8 eV. The surface morphology and the size of the silver nanoparticles were analyzed using high resolution (FE-SEM) microscopy. FTIR spectra of Ag2O NPs has showed a shift in the bands compared to those produced by aqueous extract of the henna leaf (only). (0.4 molars) Ag2O NPs has showed excellent antimicrobial activity assays against all the pathogens microbe's strains. Henna plant extract (only) has showed poor activity compared to Ag2O NPs. In comparison, the inhibition zone diameter of the gram-negative Bacteria is more considerable than the gram-positive bacteria. Moreover, Ag2O NPs activity against Bacteria is more prominent than fungi.

CdS films prepared by using CBD technique, linear optical properties tests measured by UV-3000 Nano from OPTIMA, nonlinear properties contained the nonlinear refractive index and nonlinear absorption coefficient by using single light beam source green semiconductor developed laser (SZ-303 LASER) with material Nd:YVO4+KTP or Aluminum Alloy, and Wavelength Range is (532 nm), Beam Dimension 6 Meter distance Output Laser spot 18 mm ± 2.0 mm.

In this study, biosynthesis zinc and silver oxide nanocomposite (Bs-ZANc) were prepared using an eco-friendly biological synthesis method using silver nitrate, zinc nitrate hexahydrate, and Lawsonia inermis (Henna) plant extract with four different concentrations; (0.1, 0.2, 0.3, and 0.4) molar. The detailed characterization of Bs-ZANc was performed using Grazing X-ray diffraction technique (G-XRD), Field Emission Scanning Electron Microscope (FE-SEM), X-ray energy dispersive spectroscopy (EDX), Zeta Potential (Z.P.), and Dynamic Light Scattering (DLS). In addition to studying the spectroscopic properties using Fourier transform infrared spectroscopy (FTIR). The result showed good inhibitory efficiency of Bs-ZANc against some types of fungal such as; Penicillium spp., Aspergillus spp., and Candida Albicans. Further, a comparison was made between Bs-ZANc and Lawsonia inermis (Henna) plant extract only regarding antfungal efficacy.

This study includes the effect of the etching time on the morphology of the surfaces produced using the electrochemical method of silicon ( p-type), where it was found that the etching leads to increase the porosity layer of silicon. The production of nanocrystalline structures and control of their production conditions is the first step to control the properties of the devices. These are very important applications for the etching of renewable energy.

This study includes the effect of the etching time on the morphology of the surfaces produced using the electrochemical method of silicon ( p-type), where it was found that the etching leads to increase the porosity layer of silicon. The production of nanocrystalline structures and control of their production conditions is the first step to control the properties of the devices. These are very important applications for the etching of renewable energy.