Search Results - "Zourab, Shehata M."

Sol–gel encapsulation of bromothymol blue pH indicator in presence of Gemini 12-2-12 surfactant by El-Nahhal, Issa M., Zourab, Shehata M., Kodeh, Fawzi S., Abdelsalam, Fatma H.

“…A sol–gel approach was used to encapsulate bromothymol blue (BTB) C 27 H 28 Br 2 O 5 S pH indicator into mesoporous silica material, in presence of…”
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Sol–gel entrapment of bromothymol blue (BTB) indicator in the presence of cationic 16E1Q and 16E1QS surfactants by El-Nahhal, Issa M., Zourab, Shehata M., Kodeh, Fawzi S., Abd el-salam, Fatma H., Baker, Sharbat A.

“…Sol–gel entrapment method was used to entrap bromothymol blue (BTB) pH indicator into mesoporous silica materials in the presence of cationic surfactants:…”
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Nano-structured zinc oxide–cotton fibers: synthesis, characterization and applications by El-Nahhal, Issa M., Zourab, Shehata M., Kodeh, Fawzi S., Elmanama, Abdelraouf A., Selmane, Mohamed, Genois, Isabelle, Babonneau, Florence

“…Zinc oxide nanoparticles were prepared and subsequently deposited onto the surface of the cotton fiber by ultrasonic irradiation. The optical, structure and…”
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Sol–gel encapsulation of cresol red in presence of surfactants by El Nahhal, Issa M., Zourab, Shehata M., Kodeh, Fawzi S., Babonneau, Florence, Hegazy, Wafaa

“…Cresol Red (CR) pH indicator was encapsulated into silica network using the sol–gel process. Transparent monolithic disks of entrapped CR were obtained in the…”
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Entrapment of phenol red (PR) pH indicator into sol–gel matrix in presence of some surfactants by El-Nahhal, Issa M., Livage, Jacques, Zourab, Shehata M., Kodeh, Fawzi S., Al swearky, Asma

“…Sol–gel entrapment method was used to entrap phenol red (PR) pH indicator into mesoporous silica materials, in presence of ethanediyl-1,2-bis…”
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Behavior of immobilized Alizarin Red S into sol–gel matrix as pH sensor by Zaggout, Farid R., Qarraman, Abed El-Fattah A., Zourab, Shehata M.

“…The preparation of transparent monolithic silica doping with Alizarin Red S was carried out by acid catalyzed sol–gel reaction of tetraethylorthosilicate…”
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Encapsulation of Bromothymol Blue into a Polysiloxane Network Matrix in Presence of Surfactants by El Nahhal, Issa M., Zourab, Shehata M., Kodeh, Fawzi S.

“…Bromothymol blue (BTB) pH indicator was encapsulated into polysiloxane network using the sol-gel process. Transparent monolithic disks of entrapped BTB were…”
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Behavoir of Trapped Bromothymol Blue into Sol-Gel Matrix in Presence of CTAB by El Nahhal, Issa M., Zourab, Shehata M., Kodeh, Fawzi S.

“…Encapsulation of bromothymol blue (BTB) into a polysiloxane network was prepared using sol-gel method without using a catalyst. The co-entrappment of the…”
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Spectrophotometric Studies of Entrapped Thymol Phtalein pH Indicator into Sol-Gel Matrix by Zaggout, Farid R., Qaraman, Abed El-Fattah A., Zourab, Shehata M., Abed Azzeez, Hassan

“…This research involves the behavior of thymol phtalein pH indicator entrapped into the sol-gel derived inorganic matrix. The method is based on the physical…”
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Study of the kinetics of oxidation of amines by potassium ferricyanide in the presence of N,N‐dimethyldodecylamine N‐oxide by Zourab, Shehata M., Ezzo, Essam M., El‐Aila, Hisham J., Salem, Jamil K. J.

“…This research reports on the oxidation of different amines such as dibutylamine, diethylamine, dipropylamine, ethylamine, ethylmethylamine, propylamine,…”
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Encapsulation of Methyl Red pH-Indicator into a Sol-Gel Matrix by Zaggout, Farid R., El-Nahhal, Issa M., Zourab, Shehata M., El-Ashgar, Nizam M., El-Dawahedy, Naji, Motaweh, Hanan

“…Encapsulation of methyl red pH indicator into transparent monolithic silica matrices was made via the acid-catalyzed sol-gel reaction of…”
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Encapsulation of Phenolphthalein pH-Indicator into a Sol-Gel Matrix by El-Nahhal, Issa M., Zourab, Shehata M., El-Ashgar, Nizam M.

“…Transparent monolithic silica doping with phenolphthalein has been prepared via the acid-catalyzed sol-gel reactions of tetraethylorthosilicate in the presence…”
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Phase Diagram and Effect of Additives on the Behavior of Alkyldimethyl Amine Oxide Mixture by Zourab, Shehata M., El-Samak, Rola F.

“…The phase diagram for the Genaminox 1216 (a zwitterionic surfactant), pentanol-water system has been constructed at 25°C. The sequence of the phases varies…”
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Oxidation of Amines by Potassium Ferricyanide in AOT Surfactant Systems by Zourab, Shehata M., Ezzo, Essam M., El-Aila, Hisham J., Salem, Jamil K. J.

“…The kinetic and catalytic oxidation of dibutylamine(DBA), diethyl-amine(DEA), dipropylamine(DPA), ethylamine(EA), ethylmethylamine(EMA), propylamine (PA),…”
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Encapsulation of methyl orange pH-indicator into a sol-gel matrix by Zaggout, Farid R., El-Ashgar, Nizam M., Zourab, Shehata M., El-Nahhal, Issa M., Motaweh, Hanan

“…The acid catalyzed sol-gel reaction was used to encapsulate methyl orange pH-indicator into transparent monolithic silica matrices. Tetraethylorthosilicate was…”
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Equilibrium and dynamic behavior for systems containing nonionic surfactants, n-hexadecane, triolein and oleyl alcohol by Zourab, Shehata M., Miller, Clarence A.

“…Phase behavior and electrical conductivity experiments were carried out for systems containing water, nonionic surfactants, triolein, n-hexadecane and oleyl…”
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