Awatif Saber

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• Professor
• Professor at University of Tikrit

In this work, silver nanoparticles were prepared in a good and distinctive way using the pulsed laser ablation in liquid (PLAL) technique, using an Nd-YAG laser with specific parameters with a wavelength of 1064 nm, an ablation energy of 1000 mJ, a frequency of 1 Hz, and varying the number of pulses by 300, 600, and 900, immersed in deionized water...

In this study, copper nanoparticles (CuNPs) were prepared using the pulsed laser ablation method, and the study was conducted under the effect of changing the liquid medium (ethanol, deionized water, distilled water) with a number of pulses (700p/s) and using a (Q-switched Nd-YAG) laser. At a wavelength of 532nm and an energy of 100mJ, the results...

One of the physical methods for manufacturing nanoparticles that adopts a top-down approach is the laser ablation method, which is characterized by ease, speed, and low cost. In this work, we resorted to using this method to fabricate nanoparticles from zinc by ablation with Q-switched Nd:YAG laser in ethanol, with the repetition rate of pulses (6...

Pulsed laser ablation in liquid (PLAL) is considered a relatively fast, simple to manipulate, cost-effective abraoch, and enables the fabrecation of multiscale micro-nanostructures in one step, facilitating the fabrication process. Copper nanoparticles solution was prepared by PLAL technique using Nd:YAG laser in deionized water at (532 nm), (1000...

In recent years, non-thermal atmospheric pressure plasma has attracted wide interest in industrial and biomedical fields due to its many advantages, such as its high efficiency, simple systems, easy operation, non-toxic residue, and low cost. In this project, non-thermal (cold) plasma generated using a voltage source with a precise frequency (micro...

Pulsed laser ablation in liquid (PLAL) technique can produce high purity nanoparticles, it is a top-down physical method based on the principle of dividing metal ion bulk precursors into metal atoms, this method was used in this work to synthesis cobalt nanoparticals (CoPNs) with the use of Nd: YAG laser with two wavelengths (355 nm) and (532 nm) a...

The pulsed laser ablation of a metallic target in the liquid (PLAL) is a modern and good method for creating a variety of nanomaterials that have piqued the interest of researchers in the last decade. It is used in this work to prepare zinc nanoparticles and zinc oxide nanoparticles (ZnPNs and ZnO NPs) using Nd: YAG laser with the two wavelengths (...

Pulsed laser ablation in liquid (PLAL) technique can produce high purity nanoparticles, it is a top-down physical method based on the principle of dividing metal ion bulk precursors into metal atoms, this method is used in this work to synthesis copper nanoparticals (CuPNs) by use Nd: YAG laser with two wavelengths (355 nm) and (532 nm) at energies...

The subject of biophysics is interdisciplinary and covers various fields of biology and physics. In this research the effect of some parameters of Nd:YAG laser on ants (Camponotus consobrinus) has been studied . This includes the effect on its external shape, as well as the percentage of the killing rate obtained. A laser radiation of a wavelength...

Nowadays plasma has been used in many applications. This work was done to study the effect of cold plasma on the speed of wounds recovery for diabetic’s rats. The rats have been infected with diabetes using the Alloxan substance. Then these rats are divided into four groups. The first group included control animals. The second group was injured and...

The natural polyphenolic compound that cinnamon contains is well known for its various biological activities, a broad variety of pharmacological and therapeutic properties. Diversified biomedical and pharmacological applications benefit from organic nanoparticles with controlled properties. Bioactive and non-toxic, cinnamon nanoparticles (CNPs) can...

Biophysics subject covers multiple fields of physics and biology. In this research the effect of some parameters of diode laser has been experimented with ants (Camponotus consobrinus) which includes the effect on its external shape, as well as the percentage of the killing rate obtained as a result of laser radiation at a wavelength (532 nm) with...

The cadmium oxide films containing both tin and magnesium (Mg, Sn) were deposited on the p-type porous silicon bases at room temperature (300k) with pulsed laser sedimentation technology (PLD). The characteristics of the manufactured cells were studied, which include measuring short circuit current density (J SC ) and open circuit voltage (V OC ),...

In this study, the effect of grafting with magnesium (Mg) ratios (0.1, 0.3, 0.5) on the structural and optical properties of cadmium oxide films (CdO) was studied, as these films were prepared on glass bases using the method of pulse laser deposition (PLD). The crystallization nature of the prepared membranes was examined by X-ray diffraction techn...

Worldwide, an estimated millions of patients seek medical care for wounds annually. Different methods and treatment materials have been examined and developed to promote wound healing. Recently, new technology, plasma medicine, has emerged to offer new solutions in wound care. To investigate the efficacy of non-thermal atmospheric pressure plasma j...

Key words In this study, the effect of grafting with magnesium (Mg) ratios (0.1, 0.3, 0.5) on the structural and optical properties of cadmium oxide films (CdO) was studied, as these films were prepared on glass bases using the method of pulse laser deposition (PLD). The crystallization nature of the prepared films was examined by X-ray diffraction...

To study the effect of Nd:YAG laser on the properties of structural and optical values of the energy gap of cadmium oxide (CdO) films, have been prepared using chemical spray pyrolysis and deposited on a glass substrate for concentrations(0.05, 0.1, 0.15)M at temperature (350°C) ,using 6 spray rate during (10) second for each spray . To study the o...

In this work, the effect of the laser on the material was studied through the interaction of carbon dioxide (CO 2) laser radiation with zinc oxide (ZnO) thin films, where laser irradiation is one of the most important industrial applications which have been studied in several researches and are still in continuous development. ZnO thin films were d...

Laser heat treatment is one of the important industrial applications of laser and being studied at the present time as a substitute for conventional thermal annealing. In this research (ZnO) thin films have been deposition on a glass by (Sol - Gel / Spin Coating) technique and annealed by two ways, the first one using a convection oven, where they...

Laser heat treatment is one of the important industrial applications of laser and being studied at the present time as a substitute for conventional thermal annealing. In this research (CuO) thin films have been deposition on a glass by (Sol-Gel / Spin Coating) technique and annealed by two ways, the first one using a convection oven, where they we...

In the present work the effect of plasma treatment has been used to improve the surface properties of polymeric membranes. The polymeric membranes of polycarbonate (PC) were synthesized using solution cast method. The plasma treatment was done in high vacuum chamber using nitrogen gas and the pressure for the plasma treatment was » 10-2 mbar. The e...