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Enhancement of Antibacterial Activity of Face Mask with Gold Nanoparticles

The emergence of new dangerous diseases worldwide has led to the need to think about the possibility of enhancing prevention by using new technologies. One of the most important requirements emphasized in the recent studies is the effectiveness of the masks against pathogenic bacteria. In this study, the efficiency of anti-infection protective face masks against bacteria was enhanced by using gold nanoparticles prepared by the chemical precipitation method. The absorption spectrum of the prepared gold suspension shows a clear plasmonic peak at 522 nm. The measurements showed that the sample was made of polypropylene fibers, where X-ray diffraction tests showed peaks matching its crystalline structure. Immersion with gold suspension led to the emergence of peaks belonging to the composition of gold. The immersion treatment increased Young's modulus from 36.5 to 61.7 Mpa. The antibacterial assay showed the efficacy of the samples against E-Coli bacteria with an inhibition zone of 3 cm.

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Publication Date
Tue Jun 01 2010
Journal Name
Journal Of The College Of Languages (jcl)
Assess the level of achievement

This work, in fact, is an English language teaching study (henceforth, ELT) which may provide the inspiration for much –needed research on issues such as testing students' level of achievement in articulatory phonetics at the university level. It attempts to answer two questions: 1)What is college students' level of achievement in articulatory phonetics? 2- Are there any statistical significant differences in the achievement of college students in articulatory phonetics between the production and recognition testing techniques? This research falls into three sections: Section one indicates the problem, the aims, the hypotheses, the procedures, the limits and the value of the study. Section two provides a general overview of the articul

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Publication Date
Mon Oct 01 2018
Journal Name
Journal Of Educational And Psychological Researches
Educational goals of Quranic proverbs

The research sought to know the educational goals of Quranic proverbs, The first chapter: includes general terms of research, its problem, its importance, its objectives, its methodology, and the definition of terms. In the second chapter: Proverbs in Quranic usage such as simple and complex proverbs, standard proverbs, In the third chapter, the educational objectives of the Quranic proverbs include: bringing the meaning, persuasion, thought provoking ..... the educational characteristics of the Koranic verses, including: accuracy of photography, and the truth of similar, and included the lesson applied lesson, Chapter fourth : Conclusions and Recommendations with abstra

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Publication Date
Tue Feb 13 2024
Journal Name
Iraqi Journal Of Science
New Characterization of Topological Transitivity

Let
be a dynamical system,
is said to be topological transitive if for every pair of non-empty open set
, there exists
such that
. We introduce and investigate a new definition of topological transitive by using the nation N-open subset and we called N-transitive and prove the equivalent definitions of this new definition.

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Publication Date
Sun Jul 30 2023
Journal Name
Iraqi Journal Of Science
Detour Polynomial of Theta Graph

     Let  be any connected graph with vertices set  and edges set .  For any two distinct vertices  and , the detour distance between  and  which is denoted by  is a longest path between  and  in a graph . The detour polynomial of a connected graph  is denoted by ;  and is defined by . In this paper, the detour polynomial of the theta graph and the uniform theta graph will be computed.

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Publication Date
Wed Aug 31 2022
Journal Name
Iraqi Journal Of Science
2-prime submodules of modules

      Let R be a commutative ring with unity. And let E be a unitary R-module. This paper introduces the notion of 2-prime submodules as a generalized concept of 2-prime ideal, where proper submodule H of module F over a ring R is said to be 2-prime if , for r R and x F implies that  or . we prove many properties for this kind of submodules, Let H is a submodule of module F over a ring R then H is a 2-prime submodule if and only if [N ] is a 2-prime submodule of E, where r R. Also, we prove that if F is a non-zero multiplication module, then [K: F] [H: F] for every submodule k of F such that H K. Furthermore, we will study the basic properties of this kind of submodules.

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Publication Date
Tue Aug 31 2021
Journal Name
Iraqi Journal Of Science
Multipliers of an AT-algebra

In this work, we present the notion of a multiplier on AT-algebra and investigate several properties. Also, some theorems and examples are discussed.  The notions of the kernel and the image of multipliers are defined. After that, some propositions related to isotone and regular multipliers are proved. Finally, the Left and the Right derivations of the multiplier are obtained

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Publication Date
Sun Dec 31 2000
Journal Name
Iraqi Journal Of Chemical And Petroleum Engineering
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Publication Date
Wed Dec 30 2009
Journal Name
Iraqi Journal Of Chemical And Petroleum Engineering
Monitoring of Evaporated Cooling Tower

Thep resent study was conducted for monitoring of the evaporative cooling tower in methanol production plant using digital computer' visuql Basic computer program was used for the monitoring of the performance of the cooling tower. The structure program consists of sub programs and forms to show all the related variabltes such as temperature, flow rate, pressure ...etc, that affect the cooling tower operation and give alarms and important function informition regarding these variables.

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Publication Date
Wed Apr 10 2019
Journal Name
Journal Of Legal Sciences
The Components of Public Expenditures

The State shall comply with the requirements of its members and their general, it cannot be without the state spending Multiple expenses and images formats Affect the interests of society, but it should not ignore the administration

This spending must be surrounded by all legitimate formulas and methods, approved by the legislature, according to the regulations and specific instructions, counting the expenditure is illegal and contrary to laws and regulations the executive branch has assumed responsibility and liability has legal consequences.

In addition, spending must be properly, and corresponds to the economic situation of the country, achieve maximum benefit to all members of society, and not waste public funds in ad

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Publication Date
Sun Jun 06 2010
Journal Name
Baghdad Science Journal
Rapid Spectrophotometric Determination of Phenoxazine

A rapid high sensitive and inexpensive economic method has been developed for the Determination of phenoxazine by using molecular spectrophotometry. The method is based on the oxidation of phenoxazine by potassium (meta)periodate in acidic medium. The oxidation conditions were selected to enhance the sensitivity and the stability of the pink colored species which shows an absorption maximum at 530 nm. The Beer’s law was obeyed for phenoxazine concentration range from 1 to 6 µg mL-1 with 0.003 µg mL-1 detection limit and provided variation coefficients between 0.4 to 1.7 %. This method was successfully applied for the determination of phenoxazine in aqueous samples

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