Search Results - "Youssef, Ahmed O."

Simultaneous determination of Avanafil and Dapoxetine in human plasma using liquid chromatography/tandem mass spectrometry (LC-MS/MS) based on a protein precipitation technique by Abou-Omar, Mona N, Annadi, Abdelaziz M, El Zahar, Noha M, Youssef, Ahmed. O, Amin, Mohammed A, Attia, Mohamed S, Mohamed, Ekram H

“…A rapid and selective LC-MS/MS method is described for the simultaneous assay of Avanafil and Dapoxetine in human plasma via a protein precipitation (PP)…”
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Polymer-Based Terbium Complex as a Fluorescent Probe for Cancer Antigen 125 Detection: A Promising Tool for Early Diagnosis of Ovarian Cancer by Mohamed, Magda M., Gamal, Hisham, El-Didamony, Akram, Youssef, Ahmed O., Elshahat, Esraa, Mohamed, Ekram H., Attia, Mohamed S.

“…A novel photoprobe, Tb–acetylacetone (Tb–ACAC) doped within a modified epoxy cellulose polymer immobilized with CA-125 monoclonal antibody, offers an accurate…”
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Highly Efficient Gold Nano-Flower Optical Biosensor Doped in a Sol–Gel/PEG Matrix for the Determination of a Calcitonin Biomarker in Different Serum Samples by Omer, Walaa E, El-Kemary, Maged A, Elsaady, Mostafa M, Abou-Omar, Mona N, Youssef, Ahmed O, Sayqal, Ali A, Gouda, Ayman A, Attia, Mohamed S

“…We developed a novel, simple, sensitive, accurate, and precise method for the determination of calcitonin in different serum samples with medullar thyroid…”
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Medial approach open reduction with ligamentum teres partial excision and plication for the management of congenital hip dislocation by Youssef, Ahmed O

“…Because of the known tendency for early redislocation following open reduction, we developed surgical methods for shortening the ligamentum teres to improve…”
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A highly selective optical sensor Eu-BINAM for assessment of high sensitivity cardiac troponin tumor marker in serum of cancer patients by Ahmed, Shahenda S., Youssef, Ahmed O., Mohamed, Ekram H., Attia, Mohamed S.

“…[Display omitted] •A novel and selective spectrofluorimetric technique has been applied for determination of (TNHS I).•The technique is based on quenching of…”
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Testing the validity of reference standard materials and stock solutions of veterinary drugs using LC-MS/MS by Khedr, Tawfeek, Ryad, Lamia, Youssef, Ahmed O.

“…This paper reports a practical approach for the stability testing of 37 veterinary drugs in stock standard solutions stored at −20°C for 1-3 years and the…”
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Preconcentration and separation of Cd(II), Co(II), Cu(II), Ni(II), and Pb(II) in environmental samples on cellulose nitrate membrane filter prior to their flame atomic absorption spectroscopy determinations by Gouda, Ayman A., El Sheikh, Ragaa, Youssef, Ahmed O., Gouda, Nancy, Gamil, Walaa, Khadrajy, Hameeda A.

“…A new and sensitive enrichment membrane filtration method was applied for the preconcentration and separation of trace amounts of Cd(II), Co(II), Cu(II),…”
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Removal of scale forming species from cooling tower blowdown water by electrocoagulation using different electrodes by Hafez, Omar M., Shoeib, Madiha A., El-Khateeb, Mohamed A., Abdel-Shafy, Hussein I., Youssef, Ahmed O.

“…[Display omitted] •Removal of scale forming species from cooling tower blowdown water was investigated by EC.•The effect of a various operating parameter on EC…”
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A New approach for simultaneous detection and photocatalytic degradation of imidacloprid and dinotefuran in water using terbium-based fluorometry and mixed-phase TiO2 by Khattab, Moustafa M., O.Youssef, Ahmed, EL-Kalliny, Amer S., Abdelwahed, Mahmoud H., Abou-Omar, Mona N., Attia, Mohamed S.

“…[Display omitted] •The photocatalytic degradation of IMD and DNT in water using mixed-phase TiO2 as a catalyst was investigated.•A novel and selective method…”
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Elimination of Cr (VI), Pb (II), V (V), and Cd (II) ions from Titanium oxide Pigment from Rosetta ilmenite Concentrate Using synthesised Cellulose Phosphorus Oxychloride by Fouda, Islam M., El-Kady, Mohamed Y., El-Sheikh, Enass M., Orabi, Ahmed H., Youssef, Ahmed O.

“…The cellulose impregnated phosphorus oxychloride (COP) was newly prepared. Its efficiency was assessed for the first time by removing Cr 6+ , Pb 2+ , V 5+ ,…”
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A highly selective and sensitive spectrofluorimetric method for the assessment of 3-nitrotyrosine in serum using (Eu(TTA)3Phen) photo probe by Attia, Mohmed S, Youssef, Ahmed O, Abdel-Sattar, Nour A, Amin, Mohammed A, Alharthi, Sarah, Mohamed, Ekram H, Mahmoud, Safwat A, Abou-Omar, Mona N

“…A simple, accurate and fast method was developed for the assessment of 3-nitrotyrosine as a biomarker for the early diagnosis of liver cirrhosis with minimal…”
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Electrochemical treatment of industrial cooling tower blowdown water using magnesium-rod electrode by Abdel-Shafy, Hussein I., Shoeib, Madiha A., El-Khateeb, Mohamed A., Youssef, Ahmed O., Hafez, Omar M.

“…Cooling tower blowdown water (CTBW) was treated with simple electrocoagulation (EC) using magnesium-rod electrode. This study examined the effects of the…”
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A highly selective and sensitive spectrofluorimetric method for the assessment of 3-nitrotyrosine in serum using (Eu(TTA) 3 Phen) photo probe by Attia, Mohmed S, Youssef, Ahmed O, Abdel-Sattar, Nour A, Amin, Mohammed A, Alharthi, Sarah, Mohamed, Ekram H, Mahmoud, Safwat A, Abou-Omar, Mona N

“…A simple, accurate and fast method was developed for the assessment of 3-nitrotyrosine as a biomarker for the early diagnosis of liver cirrhosis with minimal…”
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Cobalt doped titania-carbon nanosheets with induced oxygen vacancies for photocatalytic degradation of uranium complexes in radioactive wastes by Alhindawy, Islam G, Mira, Hamed I, Youssef, Ahmed O, Abdelwahab, Saad M, Zaher, Ahmed A, El-Said, Waleed A, Elshehy, Emad A, Abdelkader, Amr M

“…The photocatalytic degradation of uranium complexes is considered among the most efficient techniques for the efficient removal of uranium ions/complexes from…”
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Tb-atorvastatin doped in poly(ethylene glycol) optical biosensor for selective determination of progesterone and testosterone in serum samples by Attia, Mohamed S, Mahmoud, Safwat A, Ahmed, Amal M, Amin, Tarek A, Youssef, Ahmed. O, Amin, Mohammed A, Abou-Omar, Mona N, Mohamed, Ekram H

“…An innovative, simple and cost effective Tb 3+ -atorvastatin photo probe was designed and used as a core for a spectrofluorometric approach to sensitively…”
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Tb 3+ -atorvastatin doped in poly(ethylene glycol) optical biosensor for selective determination of progesterone and testosterone in serum samples by Attia, Mohamed S, Mahmoud, Safwat A, Ahmed, Amal M, Amin, Tarek A, Youssef, Ahmed O, Amin, Mohammed A, Abou-Omar, Mona N, Mohamed, Ekram H

“…An innovative, simple and cost effective Tb -atorvastatin photo probe was designed and used as a core for a spectrofluorometric approach to sensitively…”
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New Tb 3+ -simvastatin optical biosensor for sensitive determination of folic acid, progesterone, testosterone and vitamin D 3 in biological fluids by Attia, Mohamed S, Ahmed, Amal M, Amin, Tarek A, Youssef, Ahmed O, Amin, Mohammed A, Mohamed, Ekram H, Mahmoud, Safwat A, Abou-Omar, Mona N

“…An innovative, simple and cost effective Tb -simvastatin photo probe was designed and used as a core for a spectrofluorometric approach to sensitively…”
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Tb3+–atorvastatin doped in poly(ethylene glycol) optical biosensor for selective determination of progesterone and testosterone in serum samples by Attia, Mohamed S, Mahmoud, Safwat A, Ahmed, Amal M, Amin, Tarek A, Youssef, Ahmed O, Amin, Mohammed A, Abou-Omar, Mona N, Mohamed, Ekram H

“…An innovative, simple and cost effective Tb3+–atorvastatin photo probe was designed and used as a core for a spectrofluorometric approach to sensitively…”
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New Tb3+–simvastatin optical biosensor for sensitive determination of folic acid, progesterone, testosterone and vitamin D3 in biological fluids by Attia, Mohamed S, Ahmed, Amal M, Amin, Tarek A, Youssef, Ahmed O, Amin, Mohammed A, Mohamed, Ekram H, Mahmoud, Safwat A, Abou-Omar, Mona N

“…An innovative, simple and cost effective Tb3+–simvastatin photo probe was designed and used as a core for a spectrofluorometric approach to sensitively…”
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Potentiality of uranium adsorption from wet phosphoric acid using amine-impregnated cellulose by Orabi, Ahmed H., El-Sheikh, Enass M., Saleh, Wafaa H., Youssef, Ahmed O., El-Kady, Mohammed Y., Shalaby, Zeinab M.

“…The prepared amine-impregnated cellulose (AIC) was found to be an efficient adsorbent for uranium originated from El-Sebaiya phosphate ore. The impregenation…”
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