Publications by authors named "Elshafie H"

The aim of this study is based on the searching of "new" potential environmentally friendly plant based products with herbicidal activity. The purpose of the study is also to find the source which is easy to harvest in high amount within the local environment. Salvia pratensis L.

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The DFT was employed to assess the ion-storage capability of an irida-graphene monolayer (IGM) in Mg-ion batteries (MIBs). The IGM had a mechanically stable structure. The IGM also exhibited great conductance based on the DOS calculations.

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Article Synopsis
  • The red palm weevil (RPW) is a major pest threatening palm trees globally, commonly managed using synthetic insecticides.
  • Recent research has explored RNA interference (RNAi) as an alternative method by targeting key genes in RPW larvae, particularly focusing on genes like serine carboxypeptidase (SCP) and actin.
  • The study found that larvae exposed to RNAi treatments showed significantly lower survival rates and reduced weight, indicating that SCP and actin are effective targets for controlling the RPW population.
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The red palm weevil (RPW), Rhynchophorus ferrugineus Olivier, is a devastating insect-pest of 29 plants including date palm. It feeds inside the tree bark thus it is difficult to manage using insecticides. Only a few insecticides have been found effective against RPW.

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Chitin (Ct) is a crucial biopolymer present in fungi, algae, arthropods, and is usually obtained from crustacean shells. Chitosan (Cs) is a derivative from Ct deacetylation, and possesses numerous uses in various agro-industrial fields. Research on fungal-derived Ct and Cs is mostly focused on pharmaceutical uses, however their uses for plant disease control remain less explored.

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Article Synopsis
  • - The study investigates the oral microbiota differences between healthy individuals and those with sickle cell anemia (SCA) in the Middle East, highlighting the need for more research on this genetic disorder.
  • - Saliva samples from 36 participants (18 with SCA and 18 healthy controls) were analyzed using next-generation sequencing to identify and quantify various bacterial species in their oral microbiomes.
  • - Findings reveal that alterations in the oral microbiota may increase health complications for SCA patients, suggesting that salivary diagnostics could be useful for predicting and preventing related diseases in the future.
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Many plants can produce essential oils (EOs), having various biological properties. This study evaluated the antioxidant, anti-enzymatic and antimicrobial effects of the EOs derived from leaves of and . The antioxidant activity of the EOs was carried out with three different methods (ABTS, DPPH and FRAP).

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New tranexamic acid (TXA) complexes of ferric(III), cobalt(II), nickel(II), copper(II) and zirconium(IV) were synthesized and characterized by elemental analysis (CHN), conductimetric (Λ), magnetic susceptibility investigations (μeff), Fourier transform infrared (FT-IR), proton nuclear magnetic resonance (H-NMR), ultraviolet visible (UV-vis.), optical band gap energy (E) and thermal studies (TG/DTG and DTA). TXA complexes were established in 1 : 2 (metal: ligand) stoichiometric ratio according to CHN data.

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The aim of the current study was to compare some biological activities of edible oils enriched with 10 % of cannabidiol (CBD samples) from the Slovak market. In addition, hemp, coconut, argan, and pumpkin pure oils were also examined. The study evaluated the fatty acids content, as well as antibacterial, antifungal, antioxidant, cytotoxic, and phytotoxic activities.

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Palm weevils, spp., are destructive pests of native, ornamental, and agricultural palm species. Of the 10 recognized species, two of the most injurious species, and , both of which have spread beyond their native range, are the best studied.

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Increasing antimicrobial resistance to the action of existing antibiotics has prompted researchers to identify new natural molecules with antimicrobial potential. In this study, a green system was developed for biosynthesizing gold nanoparticles (BAuNPs) using sage ( L.) leaf extract bioconjugated with non-toxic, eco-friendly, and biodegradable chitosan, forming chitosan/gold bioconjugates (Chi/BAuNPs).

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Essential oils (EOs) are concentrated hydrophobic liquids that originate from plants and contain different bioactive chemicals and volatile substances. Several plant essential oils (PEOs) are obtained from a variety of medicinal plants and have been utilized in folk medicine and traditional pharmacopoeia. They have a long history of usage as antibacterial medicines to treat various human, animal, and plant diseases.

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The genus includes important entomopathogenic and endophytic fungi; among them, is the most studied species. However, there is little knowledge regarding their antimicrobial activity. The current research has been conducted to evaluate the in vitro antagonistic activity of and the antimicrobial efficacy of its and metabolites against (Gram positive bacteria, G+ve), and (Gram negative bacteria, G-ve).

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Citrus black rot is a serious disease of citrus plants caused by Alternaria citri. The current study aimed to synthesize zinc oxide nanoparticles (ZnO-NPs) by chemically or green method and investigate their antifungal activity against A. citri.

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Article Synopsis
  • The rhizosphere is a promising source of actinomycetes that can produce valuable bioactive secondary metabolites, which are being studied for their plant growth-promoting effects and disease control.
  • Researchers aim to extract and analyze metabolites from actinomycetes isolated from rosemary, black locust, and olive, focusing on their impact on basil and their effectiveness against specific plant pathogens.
  • Chemical analysis identified 20 different compounds with antimicrobial properties, suggesting potential for developing eco-friendly solutions for crop protection and enhancing plant growth.
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The red palm weevil (RPW), (Coleoptera: Curculionidae), is the most devastating pest of palm trees worldwide. Mitigation of the economic and biodiversity impact it causes is an international priority that could be greatly aided by a better understanding of its biology and genetics. Despite its relevance, the biology of the RPW remains poorly understood, and research on management strategies often focuses on outdated empirical methods that produce sub-optimal results.

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Natural products are compounds produced by living organisms and can be divided into two main categories: primary (PMs) and secondary metabolites (SMs). Plant PMs are crucial for plant growth and reproduction since they are directly involved in living cell processes, whereas plant SMs are organic substances directly involved in plant defense and resistance. SMs are divided into three main groups: terpenoids, phenolics and nitrogen-containing compounds.

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is a plant pathogenic fungus that causes tomato root rot disease and yield losses in tomato production. The current study's main goal is testing the antibacterial efficacy of chitosan nanoparticles loaded with essential oil (ThE-CsNPs) against in vitro and in vivo. GC-MS analysis was used to determine the chemical constituents of thyme EO.

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Weevils, classified in the family Curculionidae (true weevils), constitute a group of phytophagous insects of which many species are considered significant pests of crops. Within this family, the red palm weevil (RPW), , has an integral role in destroying crops and has invaded all countries of the Middle East and many in North Africa, Southern Europe, Southeast Asia, Oceania, and the Caribbean Islands. Simple sequence repeats (SSRs), also termed microsatellites, have become the DNA marker technology most applied to study population structure, evolution, and genetic diversity.

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has large habitats and can be isolated from terrestrial soil, rhizospheres of plant roots, and marine sediments. produce several bioactive secondary metabolites with antibacterial, antifungal, and antiviral properties. In this study, some strains were isolated from the rhizosphere zone of four different plant species: rosemary, acacia, strawberry, and olive.

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Coumarin is highly distributed in nature, notably in higher plants. The biological features of coumarin include antibacterial, anticancer and antioxidant effects. It is well known that metal ions present in complexes accelerate the drug action and the efficacy of organic therapeutic agents.

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Synthetic preservatives are widely utilized by the food industry to inhibit the microbial contamination and increase food safety and shelf life. The excessive utilization of synthetic preservatives can have a negative impact on human health and the environment. There is a great interest to find out natural substances as possible food-preservatives.

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Plant essential oils (PEOs), extracted from many aromatic and medicinal plants, are used in folk medicine and often represent an important part of the traditional pharmacopoeia: they have a long history of use in folk medicine as antimicrobial agents to control several human and phyto-pathogens. Many PEOs have been registered as effective alternatives to chemical and synthetic antimicrobials, and in the last few decades, they have also been effectively used in the food industry as antioxidants and anticarcinogens, thanks to the efforts of many research/medical institutions and pharmaceutical companies. This Special Issue discussed the chemical composition and biological-pharmaceutical activities of some important PEOs and their single constituents.

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