A new class of biologically active nanocomposites and modified polymers based on poly (vinyl alcohol) (PVA) with some organic compounds [II, IV, V VI] were synthesized using silver nanoparticles (Ag-NPs). All nucleophilic substitution interactions characterized by FTIR, DSC TGA. The biological activity the was evaluated against: gram (+) (staphylococcus aureus) (-): (Es cherichia coli bacteria)...

The antibacterial activity of Murrayaquinone A (10), a naturally occurring carbazoloquinone alkaloid, and 6-methoxy-3,7-dimethyl-2,3-dihydro-1H-carbazole-1,4(9H)-dione (11), a synthetic carbazoloquinone, both obtained during the development of the synthesis of Carbazomycin G, having unique quinone moiety, was studied against Gram-positive (Bacillus subtilis and Staphylococcus aureus) and Gram-n...

abstract: essential oils are commonly used to treat minor health problems. in this study the chemical compositions of lavandula officinalis and thymus vulgaris were determined by gas chromatography and mass spectrometry. gc/ms analysis of t. vulgaris resulted in thymol as the major oil component where as methyl sulfony exhibited as the most abundant constituent of l. officinalis. the antibacter...

Paper with antimicrobial properties was developed through in situ growth of ZnO nanorods. The targeted application for this type of paper is in health centers as wallpaper, writing paper, facemasks, tissue paper, etc. The paper was tested on three model microbes, Gram-positive bacteria Staphylococcus aureus, Gram-negative bacteria Escherichia coli and common airborne fungus Aspergillus niger. N...

Nowadays, consumers are highly worried about using chemical preservatives in foods. Thus they tend to use natural and safe food products with healthful benefits. Pomegranate and its peel can have such a role. This study aimed to determine the antioxidant activity, Total Phenolics, and Flavonoids Properties of Different Parts of Pomegranate extracts. Three types of extracts were prepared with di...

In Nepal, little is known about the microbiological profile of wound infections in children and their antimicrobial susceptibility patterns. Total of 450 pus/wound swab samples collected were cultured using standard microbiological techniques and the colonies grown were identified with the help of biochemical tests. The antimicrobial susceptibility testing was performed by Kirby-Bauer disc diff...

Some Azomethines of 5-amino isophthalic acid were synthesized and their antibacterial activity was studied in DMSO against four Gram positive Bacillus cereus ATCC11778, Staphylococcus aureus ATCC29737, Staphylococcus epidermidids NCIM2493 and Micrococcus luteus ATCC10240, and three Gram negative bacteria viz. Proteus mirabilis NCIM2241, Escherichia coli ATCC25922 and Klebsiella aerogenes NICM20...

        Freshwater crayfish (Astacus leptodactylus) is an important economic fisheries resource of Aras reservoir, Iran. The infection of freshwater crayfish by gram negative and gram positive bacteria are common in natural and cultural environments. These bacteria are considered as secondary disease agents or opportunities. This study was conducted to investigate infes...

Objective(s): The use of new technologies, which can be realized as nanotechnology, is a novel approach in this sector. Covers made of silver nanoparticles effectively prevent and reduce invasion of microorganisms, compared with other conventional covers. This study was conducted to determine the effects of nanosilver covers in comparison with other conventional covers. <stron...