Publications by authors named "S T Elkhodary"

This clinical study assessed the effectiveness of diode laser-980 nm as adjuvant in retreatment of failed endodontic cases with chronic periapical lesions on basis of IL-8 expression and postoperative pain when compared to placebo. For 28 patients, the pre-instrumentation periapical samples (S1) were gathered, following retreatment. After chemo-mechanical preparation, post-instrumentation samples (S2) were collected.

View Article and Find Full Text PDF
Article Synopsis
  • The demand for affordable, safe, and stable energy storage solutions is rising, leading to interest in aqueous zinc-ion batteries (ZIBs) as a promising alternative to alkali metal systems.
  • Nanostructured manganese-based oxides are highlighted as potential cathode materials for ZIBs, but they face challenges such as low conductivity and cycling performance.
  • This review discusses various strategies to enhance the electrochemical activity of these manganese oxides, including structural modifications and doping, while also addressing the current challenges and providing suggestions for future development.
View Article and Find Full Text PDF

The present study deals essentially with the establishment of the environmental natural radiation levels in the surveyed area. These will provide base-line information that can be used as a reference to detect and determine the amount and extent of any possible future variation or contamination in the natural radioactivity levels that might occur in the study area due to any potential incidents involving release of nuclear radiation or fallout of nuclear fission products that could affect both terrestrial and atmospheric radioactivity. A map of radiogenic heat production (RHP) was built from the airborne spectral gamma-ray data of North Jabal Maghrabiyah area, central Eastern Desert, Egypt.

View Article and Find Full Text PDF
Article Synopsis
  • Exploring high-sloping-capacity carbons is important for improving lithium-ion batteries and capacitors by enhancing their power capabilities.
  • A new method, called ion-catalyzed self-template, successfully created hydrogen-rich carbon nanoribbons (HCNR) that exhibit excellent specific capacity and fast charge/discharge rates.
  • The study reveals that the unique structure of HCNR allows for efficient lithium storage, further improving energy and power densities, and highlights the potential for using similar carbon structures in advanced rechargeable energy storage systems.
View Article and Find Full Text PDF

Appropriate heteroatom doping and pore structure optimization are cost-effective technologies to improve the electronic conductivity and ion diffusion kinetics of hard carbons (HCs). Here, we report an ion-catalyzed synthesis of N/O co-doped carbon nanorods (NOCNRs) with abundant hierarchical pores, achieving high-capacity and high-rate Na-ion storage (336 mA h g at 0.1 A g and 196 mA h g at 20.

View Article and Find Full Text PDF