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ا.د/ سيف الدين نصر ابراهيم عياد، أستاذ بقسم: الكيمياء، بكلية: العلوم

أحدث أبحاثى
* Antiproliferative effects of triterpenoidal derivatives, obtained from the marine sponge Siphonochalina sp., on human hepatic and colorectal cancer cells

الأبحاث العلمية

Novel nano silica assisted synthesis of azo pyrazole for the sustainable dyeing and antimicrobial finishing of cotton fabrics in supercritical carbon dioxide
The Journal of Supercritical Fluids
Tarek Abou Elmaaty, Hanan Elsisi, Elham Negm, Seif Ayad, Mamdouh Sofan
Bio-active sesquiterpenoids and norsesquiternoids from the Red Sea octocoral Rhytisma fulvum fulvum
Natural Product Research
Seif-Eldin Nasr Ayyad, Mohamed Ali Deyab, Tamer Kosbar, Walied Mohamed Alarif, Ahmed Hassan Eissa
New cytotoxic indole-type alkaloids obtained from Rhazya stricta leaves
South African Journal of Botany
Zainab H Abdul-Hameed, Walied M Alarif, Tariq R Sobhi, Ahmed Abdel-Lateff, Seif-Eldin N Ayyad, Farid A Badria, Jamal Saber
Polymorphisms of interleukin 4 and interleukin 4 receptor genes and bronchial asthma risk among Egyptian children
Clinical Biochemistry
Afaf Elsaid, Rasha MS Shoaib, Sara S Badr, Yahya Wahba, Seif-Eldin N Ayyad
Chemical investigation and isolation of some constituents from Paralemnalia thyrsoides
World Journal of Pharmaceutical Sciences
Aya Ali Ahmed Alassass, Marwa Samy Abubakr, Seif-Eldin Nasr Ayyad, Ebrahim Mohammed
Impact of Ottelione on Gamma-glutamyl transferase and Hematological markers in mice with Liver Fibrosis
Scientific Journal for Damietta Faculty of Science
Rasha F Zahran, Lina M El-Sayed, Seif-Eldin N Ayyad
A new cytotoxic brominated acetylenic hydrocarbon from the marine sponge Haliclona sp. with a selective effect against human breast cancer
Zeitschrift für Naturforschung C
Walied M Alarif, Ahmed Abdel-Lateff, Sultan S Al-Lihaibi, Seif-Eldin N Ayyad, Farid A Badria
New diarylheptanoids and a hydroxylated ottelione from Ottelia alismoides.
Natural product communications
Thomas R Hoye, SE Ayyad, Hollie J Beckord, Susan G Brown
Selective cytotoxic effects on human breast carcinoma of new methoxylated flavonoids from Euryops arabicus grown in Saudi Arabia
European journal of medicinal chemistry
Walied M Alarif, Ahmed Abdel-Lateff, Ahmed M Al-Abd, Salim A Basaif, Farid A Badria, Maher Shams, Seif-Eldin N Ayyad
Marine bioactive steryl esters from the red sea black coral antipathes dichotoma
CLEAN–Soil, Air, Water
Walied M Alarif, Ahmed Abdel‐lateff, Sultan S AL‐lihaibi, Seif‐Eldin N Ayyad, Farid A Badria, Abdulmohsin A Alsofyani, Zeinab S Abou‐Elnaga
Cytotoxic Polyacetylenes from the Red Sea Sponge Siphonochalina siphonella
Zeitschrift für Naturforschung C
Seif-Eldin N Ayyad, Rihab Angawy, Esraa A Saqer, Farid A Badria
Cytotoxic neviotane triterpene-type from the red sea sponge Siphonochalina siphonella
Pharmacognosy magazine
Rihab F Angawi, Esraa Saqer, Ahmed Abdel-Lateff, Farid A Badria, Seif-Eldin N Ayyad
Cytotoxic effects of three new metabolites from Red Sea marine sponge, Petrosia sp.
Environmental toxicology and pharmacology
Ahmed Abdel-Lateff, Walied M Alarif, Hany Z Asfour, Seif-Eldin N Ayyad, Alaa Khedr, Farid A Badria, Sultan S Al-lihaibi
Three new cembranoid-type diterpenes from Red Sea soft coral Sarcophyton glaucum: Isolation and antiproliferative activity against HepG2 cells
European journal of medicinal chemistry
Sultan S Al-Lihaibi, Walied M Alarif, Ahmed Abdel-Lateff, Seif-Eldin N Ayyad, Ashraf B Abdel-Naim, Fardous F El-Senduny, Farid A Badria
New Cytotoxic Laurene‐, Cuparene‐, and Laurokamurene‐Type Sesquiterpenes from the Red Alga Laurencia obtusa
Helvetica Chimica Acta
Rihab F Angawi, Walied M Alarif, Rehab I Hamza, Farid A Badria, Seif‐Eldin N Ayyad
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