Publications by authors named "Nawal M Al Musayeib"

Background: Magnesium oxide nanoparticles (MgONPs) have been fabricated by several approaches, including green chemistry approach due to diverse application and versatile features.

Objectives: The current study aimed to prepare a convenient, biocompatible, and economically viable MgONPs using waste citron peel extract (CP-MgONPs) to evaluate their biological applications.

Methods: The CP-MgONPs were synthesized by a sustainable approach from extract of waste citron peel both as capping and reducing agents without use of any hazardous material.

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The hydroethanol (70%) extracts of three species (, , and ) were analyzed using LC-ESI-MS/MS. Forty-five metabolites were identified, including different flavonoids, coumarin, polyacetylenes, and alkaloids, which were the most abundant class. By applying Principal Component Analysis (PCA) and Hierarchical Cluster Analysis (HCA) based on LC-ESI-MS/MS analysis, the three species were completely segregated from each other.

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One of the most promising, non-toxic, and biocompatible developments for many biological activities is the green synthesis of nanoparticles from plants. In this work, we investigated the antifungal activity of silver nanoparticles (AgNPs) biosynthesized from Rhazya stricta aqueous extract against several plant pathogenic fungi. UV-visible spectroscopy, Zeta potential analysis, Fourier-transform infrared spectroscopy (FTIR), and transmitted electron microscopy (TEM) were used to analyze the biosynthesized AgNPs.

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Background: Biosynthesized nanoparticles are gaining popularity due to their distinctive biological applications as well as bioactive secondary metabolites from natural products that contribute in green synthesis.

Methodology: This study reports a facile, ecofriendly, reliable, and cost-effective synthesis of silver nanoparticles (AgNPs), copper oxide nanoparticles (CuONPs), and polymeric PVP-silver-copper oxide nanocomposite using ethanol extract of seaweed and were evaluated for antiprotozoal, anticancer and photocatalytic potential. The nanostructures of the AgNPs, CuONPs, and polymeric PVP-Ag-CuO nanocomposite were confirmed by different spectroscopic and microscopic procedures.

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is a potentially valuable aromatic herb that has been used since ancient times. The present work studied the chemical profile of three species essential oils (EO): , and , as well as assessing their antioxidant and enzyme inhibitory activities. A total of 144 compounds were detected by GC-MS analysis, representing 91.

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Aurora kinases (Aurora A, B, and C) are a family of serine/threonine kinases that play critical roles during mitotic initiation and progression. Aurora A and B kinases are ubiquitously expressed, and their overexpression and/or amplification in many cancers have been associated with poor prognosis. Several inhibitors that target Aurora kinases A, B, or both have been developed during the past decade with efficacy in different in vitro and in vivo models for a variety of cancers.

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The chemical composition of the essential oils (EOs) of , and growing in Uzbekistan were determined, and their antioxidant and enzyme inhibitory activity were assessed. A gas chromatography-mass spectrometry (GC-MS) analysis revealed the presence of 143 metabolites accounting for 70.34, 76.

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Brassicaceae comprises various species representing an economically important source of industrial or pharmaceutical crops. The present study aimed to identify glucosinolates (GSLs) and volatile compounds in six Brassicaceae seeds cultivated in Egypt. An (High Performance Liquid Chromatography-Photodiode Array) HPLC-PDA analysis of GSLs in the alcoholic extracts of L.

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This study aimed to assess and correlate the phenolic content and the antioxidant activity of the methanol extracts of the stems, roots, flowers, and leaves of L. from north-eastern Algeria. Qualitative analysis was performed by high-resolution mass spectrometry (HR) LC-ESI-Orbitrap-MS and (HR) LC-ESI-Orbitrap-MS/MS).

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Background: This work describes the phytochemical and biological investigation of aerial parts of Hochst. Of Saudi origin.

Methodology: Petroleum ether fraction of ethanolic extract was fractionated on a silica gel column and further purified with different chromatographic procedures for the isolation of chemical compounds.

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Ehrenb ex Boiss. is a plant species reported from central Africa and the southern Arabian Peninsula, belonging to the family of Euphorbiaceae. The plant has ethnobotanical values and is well-known for its milky latex, which has been turned into medicine to treat various ailments.

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A facile, eco-friendly fluorescence approach based on the biogenic formation of zinc oxide nanoparticles using the biomass of shoots was developed. The suggested approach was employed to analyze three phenolic compounds (catechin, curviflorside, and curviflorin) isolated from the shoots of . The surface morphology of the prepared ZnONPs was characterized by carrying out different microscopic and spectroscopic investigations.

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Article Synopsis
  • A novel oil/polyvinylpyrrolidone/gold bionanocomposite film was created, featuring well-dispersed gold nanoparticles in a polymer matrix.
  • Various analytical techniques were employed to investigate the film's chemical, physical, and thermal properties, confirming the gold nanoparticles average size of 100 nm.
  • The bionanocomposite demonstrated significant immunomodulatory effects and potent antiprotozoal activity, effectively reducing inflammatory cytokines and inhibiting the growth of certain protozoan species.
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The current study is focused on the biosynthesis of nutmeg oil/ polyurethane/ZnONPs bionanocomposite film for immunomodulatory and antioxidant activities. The fabricated film was prepared by using naturally extracted nutmeg oil functionalized with ZnONPs in the presence of polyutherane (PU) medium. The bionanocomposite film was obtained by incorporating dropwise 10 % (/) of nutmeg oil to the PU solution/ZnONPs blend.

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The antioxidant and enzyme inhibitory potential of fifteen cycloartane-type triterpenes' potentials were investigated using different assays. In the phosphomolybdenum method, cycloalpioside D () (4.05 mmol TEs/g) showed the highest activity.

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The present study is concerned with the fabrication of the bifunctional oil/TiO/polyethylene glycol polymeric film for antibacterial and anticancer activities. The suggested film is based on the utility of naturally extracted oil in the formation of the polymeric bionanocomposite film decorated with TiO nanoparticles. The bionanocomposite film was fabricated by incorporating 15 w% of oil with 10 w% polyethylene glycol and 5 w% TiO nanoparticles.

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In-depth botanical characterization was performed on Blanco (Lamiaceae) different organs for the first time. The leaves are opposite, hairy and green in color. Flowers possess fragrant aromatic odors and exist in inflorescences of 4-15 cm long corymbose cyme-type.

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The chemical composition of the essential oils obtained from the aerial parts of four Apiaceae species, namely (EA), (EP), (FC), and (HI), were determined using gas chromatography. Altogether, 100 volatile metabolites representing 78.97, 81.

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Unlabelled: Glutamate excitotoxicity is considered one of the major causes of retinal ganglion cell death in many retinal diseases. Retinal ganglion cell degeneration causes severe blindness since visual signals from the eye to the brain are conducted only through retinal ganglion cells.

Objective: We aimed to explore the potential ameliorative effects of against glutamate excitotoxicity-induced retinal ganglion cell damage.

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Excess glutamate in the central nervous system may be a major cause of neurodegenerative diseases with gradual loss and dysfunction of neurons. Primary or secondary metabolites from medicinal plants and algae show potential for treatment of glutamate-induced excitotoxicity. Three plant extracts were evaluated for impact on glutamate excitotoxicity-induced in primary cultures of retinal ganglion cells (RGC).

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To overcome multi-drug resistance in microbes, highly efficient antimicrobial substances are required that have a controllable antibacterial effect and are biocompatible. In the present study, an efficient phototherapeutic antibacterial agent, human serum albumin (HSA)/reduced graphene oxide (rGO)/bionanocomposite was synthesized by the incorporation of rGO nanoparticles with HSA, forming protein-rGO, and decorated with a natural freshwater seaweed. The prepared HSA/rGO/bionanocomposite was characterized by spectroscopic (UV-vis, FTIR, XRD and Raman) and microscopic (TEM and SEM) techniques.

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The compositions of volatile components in the aerial parts of six species, namely (), (), (), (), () and (), were investigated using gas chromatograph-mass spectrometry (GC-MS) analysis. Ninety-seven metabolites were identified, accounting for 73.28, 87.

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Two noble metals, such as silver and gold alloy nanoparticles, were successfully synthesized by the microwave assisted method in the presence of the root extract and were used as an antibacterial and immunomodulatory agent. The nanostuctures of the synthesized nanoparticles were confirmed by various spectroscopic and microscopic techniques. The UV-vis spectrum exhibits a distinct absorption peak at 483 nm for the bimetallic alloy nanoparticles.

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Distinct morphological MgO nanoparticles (MgONPs) were synthesized using biomasses of Saussurea costus roots. The biomass of two varieties of Saussurea costus (Qustal hindi and Qustal bahri) were used in the green synthesis of MgONPs. The physical and chemical features of nanoparticles were confirmed by spectroscopic and microscopic techniques.

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Article Synopsis
  • * The identification of these compounds involved advanced techniques like NMR (both 1D and 2D), HR-ESI-MS, and CD spectra.
  • * This research expands the understanding of the chemical diversity within the plant species studied.
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