Browsing by Author Abdel-Shafi, Ayman


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Issue DateTitleAuthor(s)
2002Abdalla, HH Ruthenium, osmium and rhodium-2, 3-bis (2′-pyridyl) quinoxaline com-plexes. 69 Abdel-Rahman, MH The dangers of using KBr, KI and CaI2 as mulling agents duringAbdel-Shafi, Ayman 
1-Jan-2017Antiprotozoal agents as water soluble singlet oxygen photosensitizers: Imidazo[1,2-a]pyridine and 5,6,7,8-tetrahydro-imidazo[1,2-a]pyridine derivativesAyman Abdel-Shafi ; Fathi A. ; Ismail M. ; Boykin D. 
2023BaSn0. 96-XZr0. 04MXO3 (M= Mn, Fe or Co, x= 0, 0.02) for spin-based devices: Ferromagnetic propertiesYakout, SM; Elsharawy, Arwa IA; Wahba, MA; Khalil, M Sh; Abdel-Shafi, Ayman 
24-Apr-2023Charge Transfer Contribution to the Quenching by Oxygen of the Excited States of Substituted Phenanthroline Homoleptic Ruthenium (Ii) Complexes in Aqueous MediumAbdel-Shafi, Ayman ; Akl, Hossam N.; Salah, Dina; Abdel-Samad, Hesham S.; Abdel Aziz, Ayman A.
22-Jun-2000Charge transfer effects on the efficiency of singlet oxygen production following oxygen quenching of excited singlet and triplet states of aromatic hydrocarbons in acetonitrileAyman Ayoub Abdel-Shafi ; Wilkinson F. 
1-Dec-2001Charge-transfer and non-charge-transfer processes competing in the sensitization of singlet oxygen: Formation of O<inf>2</inf>(<sup>1</sup>∑<inf>g</inf><sup>+</sup>), O<inf>2</inf>(<sup>1</sup>Δ<inf>g</inf>), and O<inf>2</inf>(<sup>3</sup>∑<inf>g</inf><sup>-</sup>) during oxygen quenching of triplet excited naphthalene derivativesSchmidt R. ; Farokh Shafii ; Claude Schweitzer ; Abdel-Shafi, Ayman ; Francis Wilkinson 
2026Chemical synthesis of CoAl2O4 blue pigment: Its utilization for production of high performance water-base nano ceramic's inksGhanaym, EE; Sadek, HEH; El Defrawy, SA; Zawrah, MF; Abdel-Shafi, Ayman 
2024Computational design and experimental investigation of novel thiophene-based organic dyes with N, N-dimethylaminophenyl and morpholinophenyl donors for dye-sensitized solar cellsElmorsy, Mohamed R; Abdelhamed, Fatma H; sultan Alqahtani, Arwa; Abdel-Latif, Ehab; Abdel-Shafi, Ayman ; Ismail, Mohamed A
1-Jul-2022Design and synthesis of novel bichalcophene derivatives with double anchoring groups for dye-sensitized solar cell applications: sensitization and co-sensitization with N-719Abdelhamed, Fatma H.; Ismail, Mohamed A ; Abdel-Latif, Ehab; Abdel-Shafi, Ayman ; Elmorsy, Mohamed R.
2023Design, synthesis, and performance evaluation of TiO2-dye sensitized solar cells using 2, 2′-bithiophene-based co-sensitizersElmorsy, Mohamed R; Abdelhamed, Fatma H; Badawy, Safa A; Abdel-Latif, Ehab; Abdel-Shafi, Ayman ; Ismail, Mohamed A
20-Jun-2020Effect of nano sand on the properties of metakaolin-based geopolymer: Study on its low rate sinteringZawrah, M. F.; Abo Sawan, S. E.; Khattab, R. M.; Abdel-Shafi, Ayman 
1-Feb-2016Effect of solvent and encapsulation in β-cyclodextrin on the photophysical properties of 4-[5-(thiophen-2-yl)furan-2-yl]benzamidineAyman Abdel-Shafi ; Ismail M. ; Al-Shihry S. 
1-Aug-2001Effect of β-cyclodextrin on the excited state proton transfer in 1-naphthol-2-sulfonateAyman Abdel-Shafi 
12-May-2020Effects on the photophysical properties of naphthylamine derivatives upon their inclusion in cyclodextrin nanocavitiesAhmed M.M. Alazaly ; Hossam N. Akl; Dina Salah; Abdel-Samad, Hesham ; Abdel-Shafi, Ayman 
1-Jan-2002Electronic to vibrational energy conversion and charge transfer contributions during quenching by molecular oxygen of electronically excited triplet statesAyman Abdel-Shafi ; Wilkinson F. 
2024Fabrication and characterization of blue nano ceramic-inks: Utilization of cobalt aluminate pigments prepared by solid state methodGhanaym, EE; Sadek, HEH; El Defrawy, SA; Zawrah, MF; Abdel-Shafi, Ayman 
10-Apr-2019Fabrication, sinterabilty and characterization of non-colored and colored geopolymers with improved propertiesAbo Sawan, S. E.; Zawrah, M. F.; Khattab, R. M.; Abdel-Shafi, Ayman 
5-Jan-2007Factors affecting the efficiency of excited-states interactions of complexes between some visible light-emitting lanthanide ions and cyclophanes containing spirobiindanol phosphonatesAttia M. ; Abdel-Shafi, Ayman ; Khalil, M.M.H ; Attia, G.M. ; Failla, S. ; Consiglio, G. ; Finocchiaro, P. ; Abdel-Mottaleb, M.S.A. 
1-Mar-2001Factors affecting the rate of decay of the first excited singlet state of molecular oxygen O<inf>2</inf>(a<sup>1</sup>Δ<inf>g</inf>) in supercritical fluid carbon dioxideWorrall D. ; Ayman Abdel-Shafi ; Wilkinson F. 
15-Oct-2005Flow injection fluorimetric determination of chromium(VI) in electroplating baths by luminescence quenching of tris(2,2′-bipyridyl) ruthenium(II)Hassan S. ; Ayman Abdel-Shafi ; Mohammed A.