Mazin K. Hamid

• Doctor of Education
• assistant prof. at Nahrain University

Rapid emergence ofantibiotic resistance facilitates the development ofa number of novel-acting alternatives. Among these emerging approaches, metal oxide nanoparticles receive great attention due to their distinctive performance in antimicrobial stewardship. These nanoparticles can not only target the cell wall, membrane, and cytoplasmic contents t...

The Green route for the synthesis of silver nanoparticles with plant extracts performs a very important function in nanotechnology without any harmful chemicals. The existing investigation demonstrates the synthesis of silver nanoparticles by using treating silver nitrate with Graviola juice (Annona squamosa) as a reducing agent. The effect of the...

The microbubbles have many important acoustics applications, some of these applications are in medical uses such as ultrasound contrast agents and drug delivery. The efficiency and stability of the microbubbles are depending on many factors one of them is the structure of their shells. There is a significant need to visualize this structure to unde...

The synthesis of nanoparticles (GNPs) from the reduction of HAuCl 4. 3H 2 O by aluminum metal was obtained in aqueous solution with the use of Arabic gum as a stabilizing agent. The GNPs were characterized by TEM, AFM and Zeta potential spectroscopy. The reduction process was monitored over time by measuring ultraviolet spectra at a range of λ 520-...

Fungi have been used as biofactories for synthesis metals oxide nanoparticles because they are easy, clean, safe, non-toxic, biocompatible and environmentally acceptable. The present study aimed to investigate the biological synthesis, fungal screening protocol, productivity scaling-up and characterization of zinc oxide nanoparticles (ZnO Nps) usin...

Indium-doped zinc oxide (IZO) nanoparticles (NPs) have been deposited onto the Si substrates for the high performance of the photodetector. Here, a two-step laser ablation in liquid technique has been successfully developed to generate both ZnO NPs and IZO NPs using a nanosecond pulsed Nd:YAG laser in liquid. Microstructure and electrical propertie...

Abstract—Titanium dioxide (TiO 2 ) nanoparticles (NPs) colloidal that have been synthesized via Nd-YAG laser technique in pure distilled water. The produced NPs were characterized by UV-Vis absorption spectrophotometer and Transmission Electron Microscope (TEM). The surface Plasmon resonance of the colloidal determined by UV-Vis absorption spe...

Key words A huge potential from researchers was presented for enhancing the nonlinear optical response for materials that interacts by light. In this work, we study the nonlinear optical response for chemically prepared nano-fluid of silver nanoparticles in de-ionized water with TSC (Tri-sodium citrate) protecting agent. By the means of self-defocu...

We report the first synthesis of colloidal lead iodide PbI2 nanoparticles by pulsed laser ablation in methanol. Structural and optical properties of PbI2 nanoparticles were investigated. The optical absorption data showed three distinct absorption peaks (Plasmon) at 220, 250 and 302 nm, with a direct optical band gap of 2.82 eV. X-ray diffraction X...

Metal nanoparticles are being extensively used in various biomedical applications due to their small size to volume ratio and extensive thermal stability. Gold nanoparticles (AuNPs) are an obvious choice due to their amenability of synthesis and functionalization, less toxicity and ease of detection. The synthesis and bioactivity of gold nanopartic...

The effect of α-particles from radiation source Am-241 with activity 1µCi on the nuclear track detector-NTD type CR-39, dimensions (28x28x1.2) mm 3 were measured. The measurements included the changes in physical and chemical properties for the solution of etch crystalline products for CR-39 after irradiation by α-particles irradiation at two perio...

A free convection 242 Watt heat sink for electrical circuits is manufactured and simulated using finite difference method. The finite difference program solves the heat transfer equations including conduction and convection. Heat transfer by radiation is embodied in the convection coefficient. Input to program includes densities, thermal conductivi...