Ayman Ayoub Abdel-Shafi

  • Position

    Professor

  • Faculty

    Faculty of Science

  • Department

    Chemistry

  • Fields of Interest

    Photochemistry

    Excited molecular oxygen

    Exited state dynamics

    Fluorosolvatochromism

    Inclusion complexes

    Nanocavities

    Photophysics of corrdination compounds

  • List of Publications

    1. Solvent polarity indicators: Bithiophene Carboxamidine Derivatives, Maha A. Taha, Asmaa M. Dappour, Mohamed A. Ismail, Ayman H. Kamel and Ayman A. Abdel-Shafi, Journal of Photochemistry & Photobiology A: Chemistry 404 (2021) 112933
    2. Photophysical properties and fluorosolvatochromism of D-p-A thiophene based derivatives, Hussain A.Z. Sabek, Ahmed M.M. Alazaly, Dina Salah, Hesham S. Abdel-Samad, Mohamed A. Ismail and Ayman A. Abdel-Shafi, RSC Adv., 2020, 10, 43459–43471
    3. Synthesis, characterization, and evaluation of biological activities of new 4′-substituted ruthenium (II) terpyridine complexes: Prospective anti-inflammatory properties, Elnagar, M.M., Samir, S., Shaker, Y.M. Abdel-Shafi, A.A., Sharmoukh, W., Abdel-Aziz, M.S., Applied Organometallic Chemistry, 2020; e6024.
    4. Effects on the photophysical properties of naphthylamine derivatives upon their inclusion in cyclodextrin nanocavities, H. N. Akl, A. M.M. Alazaly, D. Salah, H. S. Abdel-Samad and A. A. Abdel-Shafi, Journal of Molecular Liquids 311 (2020) 113319.
    5. Effect of nano sand on the properties of metakaolin-based geopolymer: Study on its low rate sintering, M.F. Zawrah, S.E. Abo Sawan, R.M. Khattab, and Ayman A Abdel-Shafi, Construction and Building Materials 246 (2020) 118486
    6. In-situ formation of geopolymer foams through addition of silica fume: Preparation and sinterability, S.E. Abo Sawan, M.F. Zawrah, R.M. Khattab, Ayman A. Abdel-Shafi, Materials Chemistry and Physics 239 (2020) 121998
    7. Solvatochromic behavior of D-p-A bithiophene carbonitrile derivatives, Asmaa M. Dappour, Maha A. Taha, Mohamed A. Ismail, Ayman A. Abdel-Shafi, Journal of Molecular Liquids 286 (2019) 110856
    8. Fabrication, sinterabilty and characterization of non-colored and colored geopolymers with improved properties, S.E. AboSawan, M.F. Zawrah, R.M. Khattab and Ayman A. Abdel-Shafi, Mater. Res. Express 6 (2019) 075205
    9. Solvatochromism of 1-naphthol-4-sulfonate photoacid and its encapsulation in cyclodextrin derivatives, Aya S.I. Amer, Ahmed M.M. Alazaly, Ayman A. Abdel-Shafi, Journal of Photochemistry & Photobiology A: Chemistry 369 (2019) 202-211.
    10. Photoacids as singlet oxygen photosensitizers: Direct determination of the excited state acidity by time-resolved, Ahmed M.M. Alazaly, Aya S.I. Amer, Ahlam M. Fathi, Ayman A. Abdel-Shafi, Journal of Photochemistry & Photobiology A: Chemistry 364 (2018) 819–825
    11. Antiprotozoal agents as water soluble singlet oxygen photosensitizers: Imidazo[1,2-a]pyridine and 5,6,7,8-tetrahydro-imidazo[1,2-a] pyridine derivatives, Ayman A. Abdel-Shafi, Ahlam M. Fathi, Mohamed A. Ismail, and David W. Boykin, Journal of Luminescence181 (2017) 164–170
    12. Effect of solvent and encapsulation in b-cyclodextrin on the photophysical properties of 4-[5-(thiophen-2-yl)furan-2-yl] benzamidine, Ayman A. Abdel-Shafi, Mohamed A. Ismail, Shar S. Al-Shihry, Journal of Photochemistry & Photobiology A: Chemistry 316 (2016) 52–61
    13. Solvent Isotope Effect and Photosensitized Generation of Singlet Oxygen, O2(1Dg), by Substituted Ruthenium (II) bipyridyl Complexes in Aqueous Media, Ayman Abdel-Shafi, Hanaa A. Hassanin and Shar S. Al-Shihry, Photochemical & Photobiological Sciences, 2014, 13 (9), 1330 - 1337
    14. Luminescence Quenching of [Os(bpy)3]2+ by Mn7+, Cr6+, and Ce4+ ions in Acidic Aqueous Solution,  Ayman Abdel-Shafi, Journal of Luminescence 2014, 155,  282-287.
    15. Inclusion of Paracetamol b-cyclodextrin Nanocavities in Solution and in the Solid State, Maged El-Kemary, Saffaa Sobhy, Samy El-Daly, Ayman Abdel-Shafi, Spectrochimica Acta Part A 2011, 79(5), 1904-1908
    16. The influence of Surfactant’s Synergism on the Solubilization of some Fluorescent Compounds, R. Abdel-Rahem, A. A. Abdel-Shafi, J. Al-Hawarine and A. S. Ayesh, Tenside Surf. Det., 2011, 48(6), 445-452
    17. Spectroscopic Studies on the inclusion complex formation between 7-iodo-8-hyroxyquinoline-5-sulfonic acid and b-Cyclodextrin, A. A. Abdel-Shafi and S. S. Al-Shihry, Journal of inclusion phenomena and Macrocyclic chemistry, 2010, 67(1), 7-11.
    18. Fluorescence enhancement of 1-napthol-5-sulfonate by forming inclusion complex with b-Cyclodextrin in aqueous solution, A. A. Abdel-Shafi and S. S. Al-Shihry, Spectrochimica Acta Part A 2009, 72, 533-537, doi:10.1016/j.saa.2008.10.052.
    19. Mechanism of quenching by oxygen of the excited states of ruthenium(II) complexes in aqueous media. Solvent isotope effect and photosensitized generation of singlet oxygen, O2(1Dg), by [Ru(diimine)(CN)4]2- complex ions, A. A. Abdel-Shafi, M. D. Ward and R. Schmidt, Dalton Transactions, 2007, 24, 2517 - 2527. doi: 10.1039/b704895e
    20. Photosensitized generation of singlet oxygen from rhenium(I) and iridium(III) complexes,    A. A. Abdel-Shafi, J. L. Bourdelande and S. S. Ali, Dalton Transactions, 2007, 24, 2510-2516. doi: 10.1039/b705524b
    21. Photosensitized production of singlet oxygen and factors governing its decay in xenon and carbon dioxide supercritical fluids. A. A. Abdel-Shafi and D. R. Worrall, Journal of Photochemistry and Photobiology A: Chemistry, 2007, 186, 2-3, 263-269.  doi:10.1016/ j.jphotochem.2006.08.016
    22. Spectroscopic studies on the inclusion complex of 2-naphthol-6-sulfonate with b-cyclodextrin.  A.A. Abdel-Shafi, Spectrochimica Acta Part A, 2007, 66(3), 732-738. doi:10.1016/j.saa.2006.04.018
    23. Inclusion complex of 2-naphthylamine-6-sulfonate with b-cyclodextrin: intramolecular charge transfer versus hydrogen bonding effects. A. A. Abdel-Shafi, Spectrochimica Acta Part A 2007, 66(3), 1228-1236. doi:10.1016/j.saa. 2006.06.011
    24. Factors affecting the efficiency of excited-states interactions of complexes between some visible light-emitting lanthanide ions and cyclophanes containing spirobiindanol phosphonates. M. S. Attia, M. M. H. Khalil, A. A. Abdel-Shafi, G. M. Attia, S. Failla, G. Consiglio, P. Finocchiaro, and M. S. A. Abdel-Mottaleb, International Journal of Photoenergy, 2007, Article ID 12530, 1-7. doi:10.1155/2007/12530.
    25. Spectrophotometric determination of manganese by using redox reaction of tris(2,2′-bipyridine)osmium(II) with Mn7+. A. A. Abdel-Shafi, Analytical Sciences, 2006, 22, 825-828.
    26. The temperature dependent electrical transport in biphenyl derivatives. M. M. Sallam , B.A. El-Sayed and  A.A. Abdel-Shafi, Current Applied Physics, 2006, 6, 71-75. doi:10.1016/ j.cap.2004.12.006
    27. Spectrofluorimetric determination of iron (III) in industrial effluents based on fluorescence quenching of 1-naphthol-2- sulfonate, A. A. Abdel-Shafi, Taha M. A. Razek and Karima F. Fadel, J. Env. Sciences, 2005, 10(3) 851-865.
    28. Flow injection fluorimetric determination of chromium(VI) in electroplating baths by luminescence quenching of tris(2,2’-bipyridyl) ruthenium(II)). S. S. M. Hassan, A. A. Abdel-Shafi, A. H. K. Mohammed, Talanta, 2005, 67, 696-702. doi:10.1016/j.talanta.2005.03.019
    29. Mechanism of the excited singlet and triplet states quenching by molecular oxygen in acetonitrile. A. A. Abdel-Shafi and D. R. Worrall, Journal of Photochemistry and Photobiology; A: Chemistry, 2005, 172(2), 170-179. doi:10.1016/j.jphotochem.2004.12.006
    30. Photosensitized generation of singlet oxygen from ruthenium(II) and osmium(II) bipyridyl complexes. A. A. Abdel-Shafi, D. R. Worrall and A. A. Ershov, Dalton Transactions, 2004, 1, 30-36. DOI: 10.1039/ b310238f
    31. Electronic to vibrational energy conversion and charge transfer contributions during quenching By molecular oxygen of electronically excited triplet states. A. A. Abdel-Shafi and F. Wilkinson. Physical Chemistry Chemical Physics, 2002, 4, 248-254. DOI: 10.1039/ b108272h
    32. Solvents effects on the photophysical properties of 9,10-dicyanoanthracene. A.F. Olea, D. R. Worrall, F. Wilkinson, S. L. Williams and A. A. Abdel-Shafi. Physical Chemistry Chemical Physics, 2002, 4, 161-167. DOI: 10.1039/b104806f
    33. Ruthenium, osmium and rhodium-2,3-bis(2’-pyridyl)quinoxaline complexes. A. A. Abdel-Shafi, M. M. H. Khalil, H. H. Abdallah and R. M. Ramadan. Transition Metal Chemistry, 2002, 27, 69-74.
    34. Photosensitized generation of singlet oxygen from substituted bipyridine ruthenium(II) complexes. A. A. Abdel-Shafi, P. D. Beer, R. J. Mortimer, and F. Wilkinson. Helvitica Chimica Acta, 2001, 84, 2784.
    35. Photosensitised production of singlet oxygen, (O2*(a1Dg)) in the unique ‘heavy atom’ solvent, supercritical fluid xenon. A. A. Abdel-Shafi, F. Wilkinson and D. R. Worrall. Chemical Physics Letters, 2001, 343, 273-280.
    36. Singlet oxygen formation efficiencies following quenching of excited singlet and triplet states of aromatic hydrocarbons by molecular oxygen. A. A. Abdel-Shafi, D. R. Worrall and F. Wilkinson. Journal of Photochemistry and Photobiology; A: Chemistry, 2001, 142, 133-143.
    37. Effect of b-cyclodextrin on the excited state proton transfer in 1-naphthol-2-sulfonate. A. A. Abdel-Shafi. Spectrochimica Acta A. 2001, 57, 1819-1828.
    38. Charge transfer and non-charge transfer processes competing in the sensitization of singlet oxygen: Formation of O2( 1Sg+), O2(1Dg) and O2(3Sg-) during oxygen quenching of triplet excited naphthalene derivatives. R. Schmidt, F. Shafii, C. Schweitzer, A. A. Abdel-Shafi and F. Wilkinson. The Journal of Physical Chemistry A, 2001, 105, 1811-1817.
    39. Factors affecting the rate of decay of the first excited singlet state of molecular oxygen (O2*(a1Dg)) in supercritical fluid carbon dioxide. D. R. Worrall, A. A. Abdel-Shafi and F. Wilkinson. The Journal of Physical Chemistry A, 2001, 105, 1270-1276.
    40. On the efficiency of the photosensitized production of singlet oxygen in water suspensions of a tris(bipyridyl)ruthenium(II) complex covalently bound to an insoluble hydrophilic polymer. J. L. Bourdelande, J. Font, G. Marques A. A. Abdel-Shafi, F. Wilkinson, and D. R. Worrall. Journal of Photochemistry and Photobiology; A: Chemistry, 2001, 138, 65-68.
    41. Laser induced electron transfer processes in a pyrene-b-cyclodextrin complex in tetanosilicate systems. G. N. Starukh, N. P. Smirnova, A. M.Eremenko, A. A. Chuiko, A. A. Abdel-Shafi, D. R. Worrall, and F. Wilkinson. Theoretical and Experimental Chemistry, 2001, 37,103.
    42. Study of the nature of the surface of mixed titanosilicas by flash photolysis of adsorbed pyrenemethanol. O. A. Yakimenko, N. P. Smirnova, A. M. Eremenko, V. M. Ogenko, A. A. Abdel-Shafi, D. R. Worrall, and F. Wilkinson. Theoretical and Experimental Chemistry, 2001, 37,180.
    43. Photosensitized generation of singlet oxygen from ruthenium(II)-substituted benzoazacrown-bipyridine complexes. A. A. Abdel-Shafi, P. D. Beer, R. J. Mortimer, and F. Wilkinson. Physical Chemistry Chemical Physics, 2000, 2, 3137-3144.
    44. Charge transfer effects on the efficiency of singlet oxygen production following oxygen quenching of excited singlet and triplet states of aromatic hydrocarbons in acetonitrile. A. A. Abdel-Shafi and F. Wilkinson. The Journal of Physical Chemistry A, 2000, 104, 5747-5757.
    45. Photosensitized generation of singlet oxygen from vinyl linked benzo-crown-ether-bipyridyl ruthenium(II) complexes. A. A. Abdel-Shafi, P. D. Beer, R. J. Mortimer, and F. Wilkinson. The Journal of Physical Chemistry A, 2000, 104, 192-202.
    46. Mechanism of quenching of triplet states by molecular oxygen: Biphenyl derivatives in different solvents. F. Wilkinson and A. A. Abdel-Shafi. The Journal of Physical Chemistry A, 1999, 103, 5425-5435.
    47. Photocatalytic degradation of some toxic analytical reagents with TiO2. M. M. H. Khalil, A. A. Abdel-Shafi and M. S. A. Abdel-Mottaleb. International Journal of Photoenergy, 1999, 1, 85-88.
    48. Photoelectrochemistry of n-silicon semiconductor in fluoride media. M. S. A. Abdel-Mottaleb, M. S. Antonious and A. A. Abdel-Shafi. Journal of Chemical Sciences, 1998, 110, 185-191.
    49. Mechanism of quenching of triplet states by oxygen: Biphenyl derivatives in acetonitrile. F. Wilkinson and A. A. Abdel-Shafi. The Journal of Physical Chemistry A, 1997, 101, 5509-5516.
    50. Redox quenching of coumarin-6 fluorescence by iodine and two iron complexes. M. M. Abo Aly, M. S. Antonious, and A. A. Abdel-Shafi. Canadian Journal of Applied Spectroscopy, 1993, 38, 151.

  • Research Groups

  • Projects

  • Email

    aaashafi@sci.asu.edu.eg

  • Link of personal website

  • CV