Zobrazeno 1 - 10
of 17
pro vyhledávání: '"Marwa A. Sherief"'
Autor:
Dalia Y. Zaki, Engie M. Safwat, Haidy N. Salem, Shaymaa M. Nagi, Tamer M. Hamdy, Lamiaa M. Moharam, Mohammad L. Hassan, Marwa A. Sherief
Publikováno v:
Bulletin of the National Research Centre, Vol 48, Iss 1, Pp 1-11 (2024)
Abstract Background The objective of the study was to prepare and assess novel remineralizing oral films loaded with fluorapatite powder and composed of a combination of hydroxyethyl cellulose (HC) and cellulose nanofibers (CF). Methods Three concent
Externí odkaz:
https://doaj.org/article/d4af5bd736c3483bbdaa6c5e58526309
Autor:
Ahmed F. El-Sayed, Wael M. Aboulthana, Marwa A. Sherief, Gehan T. El-Bassyouni, Sahar M. Mousa
Publikováno v:
Scientific Reports, Vol 14, Iss 1, Pp 1-20 (2024)
Abstract Copper-doped ZnO nanoparticles with the formula Zn1−x(Cu)O, where x = 0.0, 0.03, 0.05, and 0.07 were produced using the co-precipitation process. Physical, chemical, and structural properties were properly examined. Powdered X-ray diffract
Externí odkaz:
https://doaj.org/article/f359fc7dad1e4b74b49e10da7bb6494d
Publikováno v:
Veterinary World, Vol 16, Iss 9, Pp 1991-2001 (2023)
Background and Aim: Yeasts are common contaminants in the cheese industry, which frequently arise from raw milk, the surrounding environment, and equipment, resulting in economic losses in addition to health hazards. This study aimed to compare the a
Externí odkaz:
https://doaj.org/article/c487ab9e7a884a75b596fa056e4c1588
Publikováno v:
Sensor Letters. 18:101-107
The aim of this work is recovery the chromium content from the tannery wastewater to decrease the environmental pollution. Also, benefit the extracted chromium compound by study their electrical behavior to be used as humidity sensor device. The chro
Autor:
Amal M. El Shahawi, Marwa A. Sherief, Magdy S. W Farag, Haidy N. Salem, Maha A. Neyazy, Dalia Y. Zaki, Inas T. Motawea
Publikováno v:
Al-Azhar Dental Journal for Girls. 6:95-99
Purpose: The objective of this study was to prepare an experimental dental composite resin core material loaded with prepared nanotitanium dioxide fillers and to evaluate the compressive strength of the experimentally prepared composite materials Mat
Publikováno v:
Egyptian Journal of Chemistry.
This study demonstrates the utilization of phosphogypsum waste for preparation of hydroxyapatite, lanthanum-doped hydroxyapatite and cerium-doped hydroxyapatite. Three concentrations of doping for each rare earth elements were prepared (0.25, 0.5, 0.
Publikováno v:
Egyptian Journal of Chemistry. 60:5-8
Ammonium polyphosphate was prepared and used as flame retardant materials for polypropylene nanocomposites. Then, kaolin was incorporated with ammonium polyphosphate nanoparticles as synergistic flame retardant system for polypropylene. This is in ad
Publikováno v:
Journal of Water Process Engineering. 19:112-119
This paper aims at preparation of disordered mesoporous silicates from the diatomite ore as a natural resource of silica. Studying the morphological, chemical and textural properties of the prepared silicate samples was evaluated by field-emission sc
Synthesis, Bioactivity, and Antimicrobial Studies on Zinc Oxide Incorporated Into Nanohydroxyapatite
Autor:
Marwa A. Sherief, Ahmed El-Beih, Amany El Khashen, A. A. Hanna, Gehan T. El-Bassyouni, Lobna Khorshed
Publikováno v:
Egyptian Journal of Chemistry.
Nano-particles of hydroxyapatite (HA) were prepared by simple method. The dried prepared particles were mixed with different percentages of zinc oxide (ZnO, 25, 50 and 75% wt. %). The produced samples were characterized by IR and X-ray techniques, wh
Publikováno v:
Journal of Chemistry, Vol 2019 (2019)
To study the effects of the precursor materials on the structure, the morphology, and the thermal stability of Mg(OH)2 particles, five samples were prepared by using the same method. The produced powder was characterized by using FTIR, XRD, SEM, and