CuO Nanoparticles as Nanocarriers and Its Antibacterial Efficacy.

In this study, CuO nanoparticles were synthesized using the sol-gel technique and subsequently functionalized with extracts from plants of the Rauvolfioideae subfamily and citrus fruits. Comprehensive characterization techniques, including UV-Vis spectroscopy, FT-IR, XRD, BET, SEM, and TEM, were employed to evaluate the structural and surface properties of the synthesized nanoparticles. The results demonstrated that both functionalized CuO nanoparticles exhibit mesoporous structures, as confirmed by nitrogen adsorption-desorption isotherms and the pore size distribution analysis.

A Study of Zn-Ca Nanocomposites and Their Antibacterial Properties.

This study aimed to develop Ca doped ZnO nanoparticles (NPs) and investigate their antibacterial properties against microorganisms of dental interest. Zn-Ca NPs were synthesized by the sol-gel method with different concentrations of Ca (1, 3, and 5 wt. %) and subsequently characterized by scanning electron microscopy (SEM), X-ray diffraction (XRD), UV-vis spectroscopy and Fourier transform infrared spectroscopy (FT-IR).

Custom-Made Ion Exchange Membranes at Laboratory Scale for Reverse Electrodialysis.

Salinity gradient power is a renewable, non-intermittent, and neutral carbon energy source. Reverse electrodialysis is one of the most efficient and mature techniques that can harvest this energy from natural estuaries produced by the mixture of seawater and river water. For this, the development of cheap and suitable ion-exchange membranes is crucial for a harvest profitability energy from salinity gradients.

Effect of TiO-ZnO-MgO Mixed Oxide on Microbial Growth and Toxicity against .

Mixed oxide nanoparticles (MONs, TiO-ZnO-MgO) obtained by the sol-gel method were characterized by transmission electron microscopy, (TEM, HRTEM, and SAED) and thermogravimetric analysis (TGA/DTGA-DTA). Furthermore, the effect of MONs on microbial growth (growth profiling curve, lethal and sublethal effect) of , , and , as well as the toxicity against by the lethal concentration test (LC) were evaluated. MONs exhibited a near-spherical in shape, polycrystalline structure and mean sizes from 17 to 23 nm.