Publications by authors named "Hassan M Gebreel"

Article Synopsis
  • The study explores environmentally friendly methods for synthesizing copper oxide nanoparticles (CuO NPs) using plant extracts from Azadirachta indica and Simmondsia chinensis.
  • CuO NPs were confirmed through color change and UV-visible spectroscopy, showing antibacterial properties against various clinical bacteria, including MRSA, with effective concentrations ranging from 62.5 to 125 µg/ml.
  • The findings suggest CuO NPs as potential alternative antibiotics and support their application in the pharmaceutical and healthcare sectors globally.
View Article and Find Full Text PDF

Exposure to ultraviolet (UV) radiation is one of the major factors that causes skin aging, erythema, sunburns, and skin cancer. This study aimed to select probiotic bacterial isolates able to produce high yield of hyaluronic acid (HA) to be employed for skin photoprotection and other possible biological applications. The selected isolates K11 and St3 were able to produce the highest yields of HA 4.

View Article and Find Full Text PDF

Crop nutrition depends on zinc for enzymatic, oxidative, and metabolic processes. In the current study 20 different bacteria were isolated from five soil samples collected from different fields in Egypt. Bacterial isolates were screened for their ability to solubilize insoluble zinc oxide and zinc carbonate.

View Article and Find Full Text PDF