Preferred Language
Articles
/
LeZW4J4BmraWrQ4dNGf5
Preparation of new Schiff base derivatives from chitosan grafted with polyvinylpyrrolidone and study of their antimicrobial activity
...Show More Authors

Purpose: To synthesize and characterize novel Schiff base-chitosan composites and determine their antimicrobial activity. Methods: Novel Schiff-base chitosan composites were synthesized by grafting polyvinylpyrrolidone and then replacing it with different aldehydes. The resulting composites were characterized using advanced analytical techniques, including thermogravimetric analysis (TGA), x-ray diffraction (XRD) studies and Fourier transform infrared spectroscopy (FT-IR). Results: The FT-IR results revealed that the Schiff-base chitosan was successfully produced during mixing and the crystallinity change of the samples was explained by the XRD patterns. Thermogravimetric analysis (TGA) of compounds A1, A3 and A4 showed weight loss of the compounds with the most significant weight loss observed in the fourth and final steps of the reaction. Analysis of the surface morphology of compounds A3, A5, and A6 by scanning electron microscopy (SEM), revealed multiple layers of sheets in the dark gray sections, as well as kinked and wrinkled portions. Compounds A2 – A6 exhibited biological activities against Gram-positive and Gram-negative bacteria as well as fungal species. Docking studies indicate that compound A6, with a binding affinity of -3.09, demonstrates antibacterial properties. Conversely, compound A2, with a binding affinity of -9.102, exhibited antifungal activity. Conclusion: The synthesized compounds possess higher antifungal potential due to the presence of benzene ring which enhances the binding affinity for antifungal activity while diminishing their antibacterial activity

Scopus
Publication Date
Sun Sep 03 2017
Journal Name
Baghdad Science Journal
Detection, purification and characterization of a bacteriocin produced by Bacillus subtilis NK16 exhibits a significant antimicrobial activity against clinical Staphylococcus spp.
...Show More Authors

Bacteriocin is an important antimicrobial peptide that can be used in industrial and medical fields due to its characteristics of antibacterial, food preservation and anticancer activities. Fifty isolates of Bacillus sp were collected from different soil samples which were already recognized via morphological and biochemical identification process. The isolates were screened for bacteriocin production effective against Staphylococcus spp in order to select the highest producing isolate. The isolate NK16 showed the maximum bacteriocin production (80 AU/ml) which was further characterized as Bacillus subtilis NK 16 through using API identification system (API 20E and API 50CHB). Then, next step was to detect the optimal conditions for maximum

... Show More
View Publication Preview PDF
Scopus (14)
Crossref (7)
Scopus Crossref
Publication Date
Mon Jun 20 2022
Journal Name
Bulletin Of The Iraq Natural History Museum (p-issn: 1017-8678 , E-issn: 2311-9799)
REVISION OF THE GENUS CHLAENIUS BONELLI, 1810 (COLEOPTERA, CARABIDAE), WITH A NEW RECORD SPECIES FROM IRAQ
...Show More Authors

In this paper, the species of the genus of Chlaenius Bonelli, 1810 (Coleoptera, Carabidae) were reviewed, and it was revealed that there are 21 confirmed species in Iraq; among them, the species of Chlaenius hamifer Chaudoir, 1856 was recorded for the first time in Iraq.
Diagnostic characters, a redescription of some of the morphological features, photographs and illustrations are provided for the new record species in this investigation.

View Publication Preview PDF
Scopus Crossref
Publication Date
Tue Oct 26 2021
Journal Name
Egyptian Journal Of Chemistry
Synthesis of new polymers linked to heterocyclic using zinc oxide with nanostructures extracted from natural sources
...Show More Authors

View Publication
Scopus (8)
Crossref (3)
Scopus Crossref
Publication Date
Sun Nov 01 2015
Journal Name
Journal Of Natural Sciences Research
Genetic Study for G-Protein Coupled Receptor from Saccharomyces Cerervisiae and From Sera of Patients with Heart Thrombosis
...Show More Authors

Aim of the present study is Identification of specific gene for GPCR using specific primers .and identification of difference in PCR analysis in patients with heart thrombosis and compared with healthy, Sequencing of PCR product regarding GPCR compared for all three subject, Identification the similarity of human GPCR with local strain of yeast fifty healthy control and fifty patients with thrombosis which diagnosed medically with cardiac specific troponin t, troponin 1 levels and electro myocardiogram ECG. The aged for all subjects ranged (39-75) years patients were lying in cardiac care unit at Ibn- al- Nafees teaching hospital and Sheikh Zayed teaching hospital. Genomic DNA of whole blood was extracted from buffy coat and cell cu

... Show More
View Publication
Publication Date
Sat Feb 09 2019
Journal Name
Journal Of The College Of Education For Women
The counseling needs for classroom teachers specialization in Jerash University from their point of view and its relationship with certain variables
...Show More Authors

This study aimed at identifying the counseling needs for classroom teachers specialization in
Jerash university. The sample of the study consisted (112) students. To achieve this goal a
scale with (39) items was built by the researcher, this scale has four domains they are as
follows; family, social, psychological and academic domain. The results of this study showed
that counseling needs obtain the heighest average. As well as, the results of the study revealed
that there were statistical differences in favor of gender and teaching year variable. Finally the
study stated a list of recommendations.

View Publication Preview PDF
Publication Date
Sun Jun 05 2016
Journal Name
Baghdad Science Journal
Synthesis, Characterization of some New 1, 3, 4-Oxadiazole derivatives based on 4- amino benzoic acid
...Show More Authors

In this research various of 2,5-disubstituted 1,3,4-oxadiazole (Schiff base, oxo-thiazolidine , and other compounds) were synthesized from 2,5-di(4,4?- amino-1,3,4-oxadiazole ) which use quently synthesized from mixture of 4-amino benzoic acid and hydrazine in the presence of polyphosphorus acid. The synthesized compounds were characterized by using some Spectral data (UV, FT-IR, and 1H-NMR).

View Publication
Crossref (1)
Crossref
Publication Date
Sun Jun 05 2016
Journal Name
Baghdad Science Journal
Synthesis, Characterization of some New 1, 3, 4-Oxadiazole derivatives based on 4- amino benzoic acid
...Show More Authors

In this research various of 2,5-disubstituted 1,3,4-oxadiazole (Schiff base, oxo-thiazolidine , and other compounds) were synthesized from 2,5-di(4,4?- amino-1,3,4-oxadiazole ) which use quently synthesized from mixture of 4-amino benzoic acid and hydrazine in the presence of polyphosphorus acid. The synthesized compounds were characterized by using some Spectral data (UV, FT-IR, and 1H-NMR).

View Publication Preview PDF
Crossref (1)
Crossref
Publication Date
Wed Feb 22 2023
Journal Name
Iraqi Journal Of Science
New Pd and Pt Complexes of Guanine –Azo Dye: Structural, Spectroscopic, Dyeing Performance and Antibacterial Activity Studies
...Show More Authors

Four new complexes of Pd(II), Pt(II) and Pt(IV) with DMSO solution of the ligand 8-[(4-nitrophenyl)azo]guanine (L) have been synthesized. Reaction of the ligand with Pd(II) at different pH gave two new complexes, at pH=8, a complex of the formula [Pd(L)2]Cl2.DMSO (1) was formed, while at pH=4.5,the complex[Pd(L)3]Cl2.DMSO (2) was obtained. Meanwhile, the reaction of the ligand with Pt(II) and Pt(IV) revealed new complexes with the formulas[Pt(L)2]Cl2.DMSO (3)and [Pt(L)3]Cl4.DMSO (4) at pH 7.5 and 6 respectively.
All the preparations were performed after fixing the optimum pH and concentration. The effect of time on the stability of these complexes was checked. The stoichiometry of the complexes was determined by the mole ratio and Job

... Show More
View Publication Preview PDF
Publication Date
Mon Jul 20 2026
Journal Name
Ibn Al-haitham Journal For Pure And Applied Sciences
Synthesis and Antibacterial Activity of New Hybrid Molecules Containing 1,3,4-Thiadiazole and 1,3,4-Oxadiazole Bearing Ibuprofen Moiety
...Show More Authors

A series of novel hybrid molecules containing 1,3,4-oxadiazole and 1,3,4-thiadiazole moieties bearing an ibuprofen moiety were designed, synthesized, and evaluated for their in vitro antibacterial activity against Gram-positive and Gram-negative bacteria. A carboxylic acid compound with a 1,3,4-thiadiazole unit was synthesized via the coupling reaction of 5-(1-(4-isobutylphenyl) ethyl)-1,3,4-thiadiazol-2-amine with benzoic acid. This compound was then used as the starting material to make several new 1,3,4-oxadiazole derivatives through ring closure reactions, after first converting it to its ester (methyl 4-(5-(1-(4-isobutylphenyl)ethyl)-1,3,4-thiadiazol-2-yl) benzoate) and then to the acid hydrazide (4-(5-(1-(4-isobutylphenyl) eth

... Show More
View Publication
Crossref
Publication Date
Thu Apr 30 2026
Journal Name
Magna Scientia Advanced Biology And Pharmacy
Investigation of antimicrobial activities of bioactive compound against Pseudomonas aeruginousa isolated from burns infections
...Show More Authors

Forty-five samples in total there are just twenty isolates of Pseudomonas aeruginousa. Over the period of four months, from January 2025 to April 2025, a variety of clinical samples were gathered from numerous hospitals in Baghdad, including Al-Sader, Ibn Al-Balady, Fatima Al-Zahraa, and Al-Imam Ali Hospitals. The clinical samples of patients with burns infections were included. The Vitek 2 compact and a biochemical test verified that all isolates were cultivated on king A, king B, ctrmide agar, macConkey agar, and blood agar. Using the disk diffusion technique, the susceptibility of P. aeruginousa isolates to 16 antibiotics from various classes was determined. P. aeruginousa isolates exhibited strong resistance to the majority of t

... Show More
View Publication
Crossref