Publications by authors named "Nehad A Ahmed"

Article Synopsis
  • The study produced dressings using Ag/ZnO nanoparticles and lavender oil incorporated into a PVA/Pet matrix via electron beam irradiation.
  • The nanoparticles were identified as spherical and about 27.4 nm in size, with the overall swelling capacity of the dressings improving significantly under certain conditions, but decreasing with higher irradiation doses.
  • The dressings exhibited biocompatibility, antimicrobial properties, and effective wound healing in rat models, indicating potential for use in clinical wound management.
View Article and Find Full Text PDF

This study aimed to develop hydrogel dressings for wound healing composed of gum tragacanth (TG) and polyvinyl alcohol (PVA) loaded with Graphene oxide (GO) and Cinnamon oil (CMO) using electron beam irradiation. The impact of the preparation conditions and the incorporation of GO and CMO on the characteristic properties of the prepared CMO-(PVA/TG)-GO wound dressings was evaluated. The healing-related characteristics were assessed, including fluid absorption and retention, water vapor transmission rate (WVTR), hemolytic assay, and antimicrobial potential.

View Article and Find Full Text PDF

Background: Radiation therapy produces reactive oxygen species, which have been linked to various degenerative conditions in periodontal attachment. This study aimed to assess the beneficial effects of aqueous leaf extract on the periodontium of albino rats exposed to fractionated gamma radiation.

Materials And Methods: This experimental study involved 24 adult male albino rats divided into three groups: Group M received leaf extract (300 mg/kg) intraperitoneally for 14 days; Group R received 20 Gy fractionated gamma irradiation; and Group MR received the same regimen as Group M and then fractionated gamma irradiation dose as Group R.

View Article and Find Full Text PDF
Article Synopsis
  • * A new eco-friendly nanocomposite hydrogel using CMC, acrylic acid, ZnO, and Ag nanoparticles was developed for photocatalytic decolorization using UV light.
  • * The study found that under optimal conditions (50 mg/L concentration, pH 4, 50 g/L catalyst, 90 minutes exposure), the hydrogel achieved a 93% decolorization of the dye lerui acid brilliant blue (LABB).
View Article and Find Full Text PDF

Using E-beam irradiation as an eco-friendly technique for initiation and crosslinking, a series of Hydroxyethyl Cellulose-poly vinyl alcohol copolymer hydrogels were synthesized as templates for cuprous oxide (CuO), reduced graphene oxide (rGO) and bismuth vanadate (BiVO) nanoparticles to be used as nanocomposites photocatalysts for methylene blue (MB) dye decolorization using visible light. Preparation conditions were optimized to ensure the construction of a good network architecture and therefore the highest gelation degree. For the preparation of (CuO@rGO)/BiVO nanocomposites, a series of rGO was decorated by CuO using the precipitation method, followed by mixing with BiVO which was synthesized hydrothermally.

View Article and Find Full Text PDF

Organic dye contamination, emanating from pharmaceutical, paper, and textile industries into water resources, severely threatens marine and human life even at low concentrations. Photocatalysis is one of the most important remediation techniques that decolorize water by employing the power of light. In this work, the development of floated beads of Sodium Alginate/hydroxyethyl methacrylate (Alg-g-HEMA) encompass graphene oxide (GO) decorated Zinc oxide (ZnO) utilizing ionizing radiation was designed to function as a photocatalyst when exposed to visible light.

View Article and Find Full Text PDF