Pharmaceutical study on silica derivatives / Asmaa Said Elshafei ; Supervised Mohamed A. Elnabarawi , Ehab R. Bendas , Marwa Hassan Shukr

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Asmaa Said Elshafei

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TextLanguage: English Publication details: Cairo : Asmaa Said Elshafei , 2015Description: 144 P. : charts ; 25cmOther title:

دراسة صيدلانية عن مشتقات السليكا [Added title page title]

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Dissertation note: Thesis (M.Sc.) - Cairo University - Faculty of Pharmacy - Department of Pharmaceutics Summary: Creating predicting model that provides possibility to synthesize xerogels with controlled physiochemical properties thus controlled drug release according to chosen conditions is our goal. We studied the simultaneous effect of pH of the precursor solution, water: Tetraethylorthosilicate (TEOS) molar ratios, temperature, Polyethylene glycol (PEG) as additive and aqueous ammonia as aging solution on physiochemical properties of silica xerogel: surface area, total pore volume mesopore volume ,%of weight loss and total enthalpy, The silica xerogel was synthesized via acid catalyzed sol-gel method. Using 2 ⁵⁻² fractional factorial design to analyze the data. Samples were characterized by X-ray diffraction (XRD), High scanning electric microscopy (SEM), Fourier transformed infrared spectroscopy (FTIR), gas adsorption (N₂ at 77 K) and thermal analysis including; thermogravimetric analysis, differential thermal analysis and Differential scanning calorimetry (TGA, DTA and DSC)

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Item type	Current library	Home library	Call number	Copy number	Status	Barcode
Thesis	قاعة الرسائل الجامعية - الدور الاول	المكتبة المركزبة الجديدة - جامعة القاهرة	Cai01.08.08.M.Sc.2015.As.P (Browse shelf(Opens below))		Not for loan	01010110066454000
CD - Rom	مخـــزن الرســائل الجـــامعية - البدروم	المكتبة المركزبة الجديدة - جامعة القاهرة	Cai01.08.08.M.Sc.2015.As.P (Browse shelf(Opens below))	66454.CD	Not for loan	01020110066454000

Thesis (M.Sc.) - Cairo University - Faculty of Pharmacy - Department of Pharmaceutics

Creating predicting model that provides possibility to synthesize xerogels with controlled physiochemical properties thus controlled drug release according to chosen conditions is our goal. We studied the simultaneous effect of pH of the precursor solution, water: Tetraethylorthosilicate (TEOS) molar ratios, temperature, Polyethylene glycol (PEG) as additive and aqueous ammonia as aging solution on physiochemical properties of silica xerogel: surface area, total pore volume mesopore volume ,%of weight loss and total enthalpy, The silica xerogel was synthesized via acid catalyzed sol-gel method. Using 2 ⁵⁻² fractional factorial design to analyze the data. Samples were characterized by X-ray diffraction (XRD), High scanning electric microscopy (SEM), Fourier transformed infrared spectroscopy (FTIR), gas adsorption (N₂ at 77 K) and thermal analysis including; thermogravimetric analysis, differential thermal analysis and Differential scanning calorimetry (TGA, DTA and DSC)

Issued also as CD

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