Zobrazeno 1 - 10
of 43
pro vyhledávání: '"Refat El-Sayed"'
Publikováno v:
Results in Chemistry, Vol 11, Iss , Pp 101822- (2024)
An innovative and exceptionally responsive optical sensing device engineered to selectively identify Bi(III) ions in water-based solutions. The sensing component, 5-(2′,4′-dimethylphenylazo)-6-hydroxypyrimidine-2,4-dione (DMPAHPD), is incorporate
Externí odkaz:
https://doaj.org/article/116ae985127b485f989f2973bda89994
Publikováno v:
Results in Chemistry, Vol 7, Iss , Pp 101513- (2024)
A highly sensitive bulk optode membrane, specifically engineered for the identification of zirconyl (ZrO2+) ions, has been successfully created. The membrane is composed of plasticized polyvinyl chloride (PVC), dibenzodylmethane (DBM) acting as the c
Externí odkaz:
https://doaj.org/article/9fa8b2e566974f228c348843233cebba
Autor:
Ahmed Hamd, Mohamed Shaban, Ghadah M. Al-Senani, Mashael N. Alshabanat, Azza Al-Ghamdi, Asmaa Ragab Dryaz, Sayed A. Ahmed, Refat El-Sayed, N. K. Soliman
Publikováno v:
Scientific Reports, Vol 13, Iss 1, Pp 1-17 (2023)
Abstract A systematic study integrating laboratory, analytical, and case study field trial was conducted to figure out the effective adsorbent that could be used for the removal of Congo red (CR) dye from industrial wastewater effluent. The ability o
Externí odkaz:
https://doaj.org/article/698e42c200b44c5c86aa520ff368e00b
Autor:
Omnia Hesham Abdelhafez, Islam M. Abdel-Rahman, Eman Alaaeldin, Hesham Refaat, Refat El-Sayed, Sami A. Al-Harbi, Ahmed M. Shawky, Mohamed-Elamir F. Hegazy, Alaa Y. Moustafa, Nourhan Hisham Shady
Publikováno v:
Pharmaceuticals, Vol 16, Iss 11, p 1578 (2023)
Cancer is a major disease that threatens human health all over the world. Intervention and prevention in premalignant processes are successful ways to prevent cancer from striking. On the other hand, the marine ecosystem is a treasure storehouse of p
Externí odkaz:
https://doaj.org/article/dd7712a497a94bdaa8ac59484a812dba
Autor:
Ahmed Hamd, Doaa Salah, Huda Fadol Alyafei, Nofal K. Soliman, Ahmed A. M. El-Reedy, Ali M. Elzanaty, Sameerah I. Al-Saeedi, Azza Al-Ghamdi, Mohamed Shaban, Refat El-Sayed, Sayed A. Ahmed
Publikováno v:
Water, Vol 15, Iss 21, p 3753 (2023)
To explore the adsorption of Congo red (CR) dye from textile effluent, natural clay glauconite was employed as a sustainable and inexpensive adsorbent. The effects of varying concentrations of sodium hydroxide (NaOH) on glauconite alteration were exa
Externí odkaz:
https://doaj.org/article/501c352d1a7d419699b75a86a168539d
Autor:
Metwally Abdallah, Nizar El Guesmi, Arej S. Al-Gorair, Refat El-Sayed, Aseel Meshabi, Mohamed Sobhi
Publikováno v:
Green Chemistry Letters and Reviews, Vol 14, Iss 2, Pp 382-394 (2021)
The anticorrosion potency of Sabic mild steel (MS) in 0.5 M H2SO4 solution was enhanced by three synthetic non-ionic surfactants (NI Surf.) containing pyridine and pyrimidine derivatives. These compounds are safe, environmentally friendly, and harmle
Externí odkaz:
https://doaj.org/article/ca0109948ceb4d1e91f8a739c1f8c62c
Autor:
Doaa Salah, Ahmed Hamd, N. K. Soliman, Ali M. Elzanaty, Abdulaziz M. Alanazi, Mohamed Shaban, Refat El-Sayed, Sayed A. Ahmed
Publikováno v:
Separations, Vol 9, Iss 11, p 384 (2022)
Glauconite (Gl), a naturally occurring clay material, was utilized as an affordable and ecologically friendly adsorbent to explore its capturing capacity towards Congo red (CR) dye from textile industrial waste effluent. To improve adsorption and rem
Externí odkaz:
https://doaj.org/article/2ebe85e72f554b0a8f29b1dcb804c8e2
Publikováno v:
Chemistry Central Journal, Vol 12, Iss 1, Pp 1-13 (2018)
Abstract A novel series of substituted 2-thiohydantoin incorporated with benzoimidazole, pyrazole, triazole and/or benzoxazole moieties has been synthesized using (E)-3-[1-(4-bromophenyl)ethylideneamino]-2-thioxoimidazolidin-4-one 1 as the key starti
Externí odkaz:
https://doaj.org/article/39d0eb600b1c4772b8548396c5cd3db4
Autor:
N.K. Soliman, Mohamed Shaban, Sayed A. Ahmed, Asmaa Ragab Dryaz, H.R. Abd El-Mageed, Refat El-Sayed, Esam S. Allehyani, Hamed M. Al-Saidi, Khaled N.M. Elsayed, Ahmed Hamd
Publikováno v:
DESALINATION AND WATER TREATMENT. 267:266-282
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::c30067ebd1b9878ba410db2db1a18149
https://doi.org/10.5004/dwt.2022.28688
https://doi.org/10.5004/dwt.2022.28688
Autor:
Moataz Morad, Ismail Althagafi, Refat El-Sayed, Khalid Althagafy, Ahmed Fawzy, Areej A. Al Bahir
Publikováno v:
Journal of Adhesion Science and Technology. 36:1993-2019
Carbon steel is generally exposed to corrosion in acidic media, thus three nonionic surfactants based on pyrazolopyrimidine derivatives were designed and examined for the first time as inhibitors f...
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::50ba73282ebe9c1faef8cab92ad240a5
https://doi.org/10.1080/01694243.2021.1997039
https://doi.org/10.1080/01694243.2021.1997039