Innovative graphene quantum dots@poly(Euchrysine) probe for the first electroanalytical sensing of Tipiracil: Sensor design, analytical validation, and proof-of-concept pharmacokinetic application

Research Authors
Rania S. Ibrahim , Hanaa M. Abd El-Wadood , Marwa R. El-Zahry , Noha M. Hosny
Research Date
Research Department
Department of Pharmaceutical Analytical Chemistry
Research Journal
Microchemical Journal
Research Member
Marwa Rifat Mohamed Zahry
Research Vol
218
Research Year
2025

"Off/On” Fluorescent Probe based on Aggregation‑Induced Quenching of ZnO‑Quantum dots for Determination of Ara‑C: Pharmacokinetic Applications, Adsorption Kinetics & Green Profile Assessment

Research Authors
Marwa R. EL-Zahry, Rania S. Ibrahim, Hanaa M. Abd El-Wadood, Horria A. Mohamed
Research Date
Research Department
Department of Pharmaceutical Analytical Chemistry
Research Journal
Journal of Fluorescence
Research Member
Marwa Rifat Mohamed Zahry
Research Vol
34
Research Year
2023

Greenness-integrated analytical quality by design-compliant development of a quasi-HDES-DLLME method for patent blue V preconcentration from various food products, and environmental water samples

Research Authors
Heba S. Mousa, Ayman A. Gouda, Marwa R. El-Zahry, Magdi M. El Hosary, Marwa H. Hassan
Research Date
Research Department
Department of Pharmaceutical Analytical Chemistry
Research Journal
Microchemical Journal
Research Member
Marwa Rifat Mohamed Zahry
Research Vol
210
Research Year
2025

Levetiracetam sandwich-type electrochemical sensor based on bimetallic MXenes nanoflakes/DNA/vertically oriented graphene oxide doped with cobalt nanocomposites

Research Abstract

In this presentation, a novel modification of a sandwich-type pencil graphite electrode (PGE) was developed. The electrode consists of ds-DNA biomolecules sandwiched between two-dimensional molybdenum vanadium carbide (Mo2V2C3) MXene nanoflakes intercalated with graphene oxide and the vertically oriented graphene oxide decorated with cobalt nanoparticles (Co@VOGO/ds-DNA/MXene@rGO/PGE). This modified electrode was proposed for the voltammetric determination of the antiepileptic drug Levetiracetam (LVT). Various characterization techniques, including scanning electron microscopy, powder X-ray diffraction, Raman spectroscopy, X-ray photoelectron spectroscopy, and electrochemical impedance spectroscopy were employed. The modified electrode demonstrated a linear dynamic range of 5 × 10−7–6 × 10−5 mol·L−1 and a detection limit of 3.6 × 10−8 mol·L−1. It exhibited excellent …

Research Authors
Marwa R. El-Zahry
Research Date
Research Department
Department of Pharmaceutical Analytical Chemistry
Research Journal
Microchemical Journal
Research Member
Marwa Rifat Mohamed Zahry
Research Publisher
Elsevier
Research Vol
207
Research Website
https://scholar.google.com/scholar?oi=bibs&cluster=12230747029670563982&btnI=1&hl=en
Research Year
2024

Electrochemical Sensor Based on Molybdenum-Doped Graphene Oxide Nanorods Anchored Carbon Spheres/Vanadium Pentoxide Nanocomposites for Simultaneous Determination of Diclofenac Sodium and Posaconazole

Research Authors
Marwa R. El-Zahry
Research Date
Research Department
Department of Pharmaceutical Analytical Chemistry
Research Journal
Microchemical Journal
Research Member
Marwa Rifat Mohamed Zahry
Research Vol
206
Research Year
2024

Important Announcement As part of the role of Egyptian universities in community service and environmental development, the Supreme Council of Universities announces the release of an awareness video entitled: "The Vision of the Supreme Council of Univers

يستعرض الفيديو رؤية متكاملة لكيفية مساهمة الجامعات في التصدي لهذه الظاهرة،
من خلال البحث العلمي، والبرامج التدريبية، والمبادرات المجتمعية،
بهدف دمج الأطفال في المجتمع وتمكينهم من مستقبل أفضل.


?    ? ?   اضغط لمشاهدة الفيديو

?

https://youtu.be/q_lVjvdibB0

news category
خبر عام

"The second scientific seminar for the Master’s thesis of Pharmacist Shaimaa Abd El-Sayed Yassin, an external Assistant Lecturer, registered for the Master’s degree in Pharmaceutical Sciences (Pharmaceutical Organic Chemistry)."

عقد الحلقة العلمية الثانية الخاصة برسالة الماجستير المقدمة من الصيدلانية / شيماء عبد السيد ياسين المعيده من الخارج والمسجلة لنيل درجة الماجستير فى العلوم الصيدلبة (كيمياء عضوية صيدلية)

news category
قسم الكيمياء العضوية

"A discussion seminar for the scientific article of Pharmacist Maria Magdy Balamon, Assistant Lecturer at the Faculty of Pharmacy – South Valley University, and an external candidate for the Master’s degree in Pharmaceutical Sciences (Pharmaceutical Organ

عقد حلقة نقاشية للمقالة العلمية الخاصة بالصيدلانية / ماريا مجدى بلامون المعيدة بكلية الصيدلة – جنوب الوادي والمقيدة من الخارج لنيل درجة الماجستير فى العلوم الصيدلبة (كيمياء عضوية صيدلية)

news category
قسم الكيمياء العضوية

Holding a scientific discussion session for the doctoral dissertation of pharmacist Yostina Malak Amin – Pharmacognosy (external PhD candidate).

On Sunday, October 5, 2025, God willing,  the Department of Pharmacognosy will hold a scientific discussion session for the doctoral dissertation of pharmacist Youstina Malek Amin (external PhD candidate).

The session will be titled:

"Bio-guided Phytochemical Study for Certain species belonging to Family Arecaceae, Cultivated in Egypt"

 The discussion will take place in the meeting room of the Department of Pharmacognosy at 10:30 a.m.
 

news category
خبر عام

Holding a scientific discussion session for the doctoral dissertation of pharmacist Walaa Saad Qour – Pharmacognosy (external PhD candidate).

On Sunday, October 5, 2025, God willing, the Department of Pharmacognosy will hold a scientific discussion session for the doctoral dissertation of pharmacist Walaa Saad Qour (external PhD candidate).

The session will be titled:

"Bio-guided Phytochemical Study on Bolusanthus speciosus, Family: Fabaceae and Sabal yapa, Family: Arecaceae, Cultivated in Egypt"

The session will be held in the meeting room of the Department of Pharmacognosy at 10:30 AM.

news category
خبر عام
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