Copper nanoparticles have been synthesized by the reduction of copper ions using plant leaf extracts of khat (Catha edulis), castor oil (Ricimus communis) and derjihara (Prosopis juliflora) as reducing and stabilizing agents. The progress of bio-reduction of Cu2+ ions generating metallic copper was monitored by observing the absorption peak around 566 nm, characteristic of surface […]

Porous ferroscaffolds have interesting applications in bioengineering such as tissue engineering, controlled drug release and bioimaging. In this work, the conjugated fluorescein isothiocyanate (FITC) magnetite (Fe3O4) nanoparticles (FMNP) were embedded in the hydrogel scaffold (FFS) to study the effect of static magnetic field on swelling for drug release purpose as well as to serve as […]

For many people, learning about new things such as a second language is an adventure and very fulfilling. Dopamine levels boost in the brain to help us maintain the new information. However, if dopamine levels are low, the new information literally goes in and out of the brain and is lost. This work postulates disability […]

The main advantage of optoacoustic imaging (OAI) is the capability to detect diseases at their early stages of growth. The efficiency of this technique has been demonstrated by preliminary studies with real biological tissues and small animals. The definitive goal of in-vivo OAI is to provide maps of the absolute concentration of chromophores with the […]

A customized optical system composed of collimating and focusing lenses is proposed to achieve the beam focusing of high-brightness diode laser bars with high fill factor for optoacoustic applications. Through an optimized design, the beam of a 940-nm diode laser bar is first collimated and symmetrized between the fast and slow axes, and then is […]

The purpose of this study was to prepare and to characterize a new formulation of injectable capsaicin loaded poly (D,L-lactic-co-glycolic acid) (PLGA) microspheres (CAP-MS). The emulsion solvent evaporation process based on O/W emulsion was applied to prepared the CAP-MS with optimization of formulation using uniform design with three factors and six levels. The optimized formulation […]

Hydroxyapatite (HAp) – polycaprolactone (PCL) composite has found enhanced interest as scaffold material for bone tissue engineering application. The HAp phase is bioactive and provide the favorable environment for cell adhesion, proliferation, differentiation and cell conduction whereas the biodegradable PCL provide the required flexibility, mouldability and resorbability. Nanoparticles of HAp has been synthesized by precipitation […]

In this study one of classical antibiotic compound nitrofurantoin was studied as micro and nano particles in electrochemical analysis by cyclic voltammetric technique using glassy carbon electrode in blood medium to observe the oxidative effect on the blood components. It was found oxidation – reduction current peaks of nitrofurantoin in blood medium at +1 and […]

Heme-based Metalloproteins play essential part as nano-biosensor for diatomic gases such as NO, O2, CO and so on. The electron and optic properties, and adsorption energy of Heme complex as the nano-biosensor for O2 and CO gases were studied using ab initio studies and density function theory (DFT) approach. The results show that Heme is […]