Preferred Language
Articles
/
ahdSCpEBVTCNdQwC_JJP
The influence of surfactant type on the formation of zinc oxide nanoparticles via liquid phase pulsed laser ablation technique
...Show More Authors

To produce Zinc Oxide NanoParticles, ZnO-NPs, different methods can be used. However, the utilization of Liquid-Phase Pulsed Laser Ablation, LP-PLA, methodology of three distinct environment of aqueous using pure zinc plate will be one of the approaches for this job. Thus, in this work, concentrates on the influence of the results after employing some changes on the environment in other words, the influence of the NPs size and/or the NPs availability/appearance. Cetyltrimethylammonium Bromide, CTAB, is one of the three surfactants that have been used in the water-based solution. That is, the Sodium Dodecyl Sulfate, SDS, besides the Distilled Water, DW, the three surfactants will be ready when the molarity of the DW is around 10− 3 M. The specifications of the employed laser are: 800 nm as a wavelength, radiating with pulses of 130 fs as a duration, which will be repeated every 1ms (1 kHz). That is, with these laser settings, the femtosecond Ti: Sapphire laser was generated to irradiate the zinc target, which attain ablation inside the aforementioned solution. Hence, according to the sort of the surfactant that has been employed in the experiment, different shades were introduced in the resultant solutions, this reveals that the NPs are appeared with various dimensions. The shadow that has been captured is the white color which ranges from foggy to milky. Note that in the experiment was utilized the UV-VIS spectroscopy test in order to evaluate and characterize the ZnO-NPs that were produced. The creation of discrete sizes of ZnO-NP was verified by the surface plasmon resonance (SPR) spectra, which displayed separate absorbance peaks. For instance, the CTAB surfactant was at 207 nm, for the SDS, it was at 212 nm, while for the DW environment, it was at 218 nm. Accordingly, it was found, using the Scanning Electron Microscopy, SEM, captured images of the created nanoparticles, that the CTAB surfactant introduces the most regular/small sizes with respect to that produced using the SDS, which gives uneven sizes and shapes. Furthermore, the NPs generated in DW formed agglomerations with diameters in the micro range and exhibited a combination of spherical and hexagonal forms. The production of ZnO-NPs was confirmed using Fourier Transform Infrared Spectroscopy (FTIR) analysis, which demonstrated absorption readings in the 435–445 cm− 1 range.

Scopus Clarivate Crossref
View Publication
Publication Date
Wed May 29 2024
Journal Name
Pharmacia
Formulation, in vitro and in vivo evaluation of olanzapine nanoparticles dissolving microneedles for transdermal delivery
...Show More Authors

Olanzapine (OLZ) is classified as a typical antipsychotic drug utilized for the treatment of schizophrenia. Its oral bioavailability is 60% due to its low solubility and pre-systemic metabolism. Hence, the present work aims to formulate and evaluate OLZ nanoparticles dissolving microneedles (MNs) for transdermal delivery to overcome the problems associated with drug administration orally. OLZ nanoparticles were prepared by the nanoprecipitation method. The optimized OLZ nanoparticle formula was utilized for the fabrication of dissolving MNs by loading OLZ nanodispersion into polydimethylsiloxane (PDMS) micromould cavities, followed by casting the polymeric solution of polyvinylpyrrolidone(PVP-K30) and polyvinyl alcohol (PVA) to form

... Show More
View Publication
Scopus (6)
Crossref (2)
Scopus Clarivate Crossref
Publication Date
Mon Sep 19 2022
Journal Name
International Journal Of Biomaterials
Green Biosynthesis of Silver Nanoparticles from Moringa oleifera Leaves and Its Antimicrobial and Cytotoxicity Activities
...Show More Authors

The plant occupied the largest area in the biosynthesis of silver nanoparticles, especially the medicinal plants, and it has shown great potential in biotechnology applications. In this study, green synthesis of silver nanoparticles from Moringa oleifera leaves extract and its antifungal and antitumor activities were investigated. The formation of silver nanoparticles was observed after 1 hour of preparation color changing. The ultraviolet and visible spectrum, Fourier transform infrared spectroscopy, X-ray diffraction, scanning electron microscopy, and transmission electron microscopy techniques were used to characterize synthesis particles. Ultraviolet and visible spectroscopy showed a silver surface plasmon resonance band at 434

... Show More
View Publication
Scopus (68)
Crossref (61)
Scopus Clarivate Crossref
Publication Date
Mon Aug 01 2016
Journal Name
Journal Of Economics And Administrative Sciences
The effect of managerial Process Reengineering on organizational citizenship Applied research on Electronic Industries Company
...Show More Authors

ABSTRACT

The research aims to know the reality of a two examined variables at the organization studied identifying the relationship between managerial processes reengineering and organizational citizenship behavior. The research applied on the Electronic Manufacturing Company encompassing a sample of managers and employees consisted of (100) individuals. A questionnaire is the main instrument for data gathering, which has been included (45) questions as well as personal interviews to support the questionnaire's questions and to achieve greater realism for collecting information.

Answers were analyzed to reach the final results through the use of a number of statistical methods via

... Show More
View Publication Preview PDF
Crossref
Publication Date
Thu Jan 07 2016
Journal Name
International Journal Of Innovative Research In Science, Engineering And Technology
Effect Of heat Treatment On The Optical Properties Of CuInSe2 Thin Films
...Show More Authors

CuInSe2 (CIS)thin films have been prepared by use vacuum thermal evaporation technique, of 750 nm thickness, with rate of deposition 1.8±0.1 nm/sec on glass substrate at room temperature and pressure (10-5) mbar. Heat treatment has been carried out in the range (400-600) K for all samples. The optical properties of the CIS thin films are been studied such as (absorption coefficient, refractive index, extinction coefficient, real and imaginary dielectric constant)by determined using Measurement absorption and transmission spectra. Results showed that through the optical constants we can made to control it is wide applications as an optoelectronic devices and photovoltaic applications.

Preview PDF
Publication Date
Mon Jan 01 2018
Journal Name
Aip Conference Proceedings
Study the effect of nano SiO2 on dielectric strength property of zirconia
...Show More Authors

View Publication
Crossref (2)
Crossref
Publication Date
Wed Feb 25 2026
Journal Name
Journal Of Baghdad College Of Dentistry
The Effect of Orthodontic Force on Salivary Levels of Alkaline Phosphatase Enzyme
...Show More Authors

Background: Orthodontic tooth movement is characterized by tissue reactions, which consist of an inflammatoryresponse in periodontal ligament and followed by bone remodeling in the periodontium depending on the forces applied. These processes trigger the secretion of various proteins and enzymes into the saliva.The purpose of thi study was to evaluate the activity of alkaline phosphatase (ALP) in saliva during orthodontic tooth movement using different magnitude of continuous orthodontic forces.
Materials and Methods: Thirty orthodontic patients (12 males and 18 females) aged 17-23 years with class II division I malocclusion all requiring bilateral maxillary first premolar extractions were randomly divided into three groups according t

... Show More
View Publication Preview PDF
Publication Date
Sat Jun 01 2019
Journal Name
Journal Of Economics And Administrative Sciences
Effect of industry specialization of the Iraqi audit firms on audit quality
...Show More Authors

The research aim to measure the impact of the Industry specialization of the auditors on the quality in audit in Iraqi auditing firms, as well as measuring the factors of Industry specialization in the Iraqi audit companies by measuring the market shares of Iraqi audit firms that audit the companies listed on the Iraqi Stock Exchange For 2010 to 2016, by surveying the opinions of (35) Audit firm on the impact of the Industry specialization of auditing firms in audit quality factors, The effect of the variables was revealed through the use of the survey form Distributed to Iraqi audit companies, The industry speci

... Show More
View Publication Preview PDF
Crossref
Publication Date
Mon Jan 01 2018
Journal Name
Aip Conference Proceedings
Study the effect of nano SiO2 on dielectric strength property of zirconia
...Show More Authors

View Publication
Scopus (3)
Crossref (2)
Scopus Clarivate Crossref
Publication Date
Fri Jan 01 2016
Journal Name
International Journal Of Innovative Research In Science, Engineering And Technolog
Effect Of heat Treatment On The Optical Properties Of CuInSe2 Thin Films
...Show More Authors

CuInSe2(CIS) thin films have been prepared by use vacuum thermal evaporation technique, of thickness750 nm with rate of deposition 1.8±0.1 nm/sec on glass substrate at room temperature and pressure (10-5) mbar. Heat treatment has been carried out in the range (400-600) K for all samples. The optical properties of the CIS thin films are been studied such as (absorption coefficient, refractive index, extinction coefficient, real and imaginary dielectric constant) by determined using Measurement absorption and transmission spectra. Results showed that through the optical constants we can make to control it are wide applications as an optoelectronic devices and photovoltaic applications.

View Publication
Publication Date
Fri Jul 21 2023
Journal Name
Journal Of Engineering
Effect of Cryogenic Treatment on the Properties of Low Carbon A858 Steel
...Show More Authors

This study is concerned with the effect of Deep Cryogenic Treatment (DCT) at liquid nitrogen temperature (-196 o C) on the mechanical properties and performance of low carbon steel (A858). The tests specimens were divided in to two groups, the first group was subjected to the conventional heat treatment of normalizing, and the second group was also normalized then subjected to (DCT). The results have shown that after (DCT), the Hardness, Tensile properties and the impact energy absorbed were all slightly increased. However the fatigue test showed some positive improvement in fatigue limit by 20(N/mm2 ), and the volume wear rates at different loads were significantly decreased after (DCT). The changes in microstructure due to (DCT) were c

... Show More
View Publication Preview PDF
Crossref (1)
Crossref