Biosynthesis of Zinc Oxide Nanoparticles by Origanum majorana Aqueous Leaves Extracts, Characterization and Evaluated Against to Schistosoma haematobium.

Schistosomiasis, caused by Schistosoma worms, is a major neglected tropical disease in Africa, this disease is ranked as second after malaria. Nanotechnology is important for treating schistosomiasis while minimizing chemotherapy side effects. The current investigate aimed to assess the effectiveness of biosynthesized zinc oxide nanoparticles (ZnO NPs), which were used for the first time in an attempt to find alternative treatment for schistosomiasis and synthesized by Origanum majorana, and to compare them with praziquantel (PZQ), the only chemical treatment approved by the World Health Organization.

Electrochemical Performance and Hydrogen Storage of Ni-Pd-P-B Glassy Alloy.

The search for hydrogen storage materials is a challenging task. In this work, we tried to test metallic glass-based pseudocapacitive material for electrochemical hydrogen storage potential. An alloy ingot with an atomic composition of NiPdPB was prepared via arc melting of extremely pure elements in an Ar environment.

Hydroxyapatite nanoparticles derived from mussel shells for cytotoxicity test and cell viability.

Hydroxyapatite (HA) nanoparticles derived from mussel shells were prepared using the wet precipitation method and were tested on human mesenchymal and epithelial cells. Shells and HA powder were characterized via X-ray diffraction analysis (XRD) and scanning electron microscopy along with energy dispersive X-ray spectroscopy (SEM/EDX), high resolution transmission electron microscopy (HR-TEM) and Fourier transform infrared spectroscopy (FTIR). The in vitro cytotoxic properties of HA and mussel shells were determined using sulphorhodamine B (SRB) assays for MCF-7 cells (HepG2) and colon (Caco-2) cells.