- الرئيسية
- عن الجامعة
- رمضان محمود محمد على
رمضان محمود محمد على
Doctor of Philosophy Department of Pharmacology and Pharmacoepidemeology Analytical chemistry lab, Faculty of Medicine Heidelberg University, Heidelberg, Germany 2013
MSc in Pharmaceutical Science Faculty of Pharmacy, Assiut Univ, Assiut, Egypt 2006
University of Al-Azhar, Assuit, Egypt 1998 Bachelor of Pharmacy (Very Good)
MSc in Pharmaceutical Science Faculty of Pharmacy, Assiut Univ, Assiut, Egypt 2006
University of Al-Azhar, Assuit, Egypt 1998 Bachelor of Pharmacy (Very Good)
السيرة الذاتية
جدول الدراسة
الابحاث والمؤلفات
المشاريع البحثية
الجوائز
الخبرات والمناصب الإدارية
- Head of Analytical Chemistry Department Faculty of Pharmacy Al-Azhar University Assuit Branch
المؤهلات العلمية
- Doctor of Philosophy Department of Pharmacology and Pharmacoepidemeology
الاهتمامات البحثية
Analytical and Bioanalytical techniques for quantification of different material in different matrices design and construct the specific electro-sensor for determination of specific material in food and enviromental samples
| اليوم | المادة | الوقت |
|---|---|---|
| الأحد | Medicinal Chemistry-1 PDPC0342 (P) 1045 | 13:00 - 15:00 |
| الثلاثاء | Medicinal Chemistry-1 PDPC0342 (P) 1044 | 13:00 - 15:00 |
| الأربعاء | تدريب صيدلي ميداني -2 | 10:00 - 14:00 |
A dual-recognition-controlled electrochemical biosensor for selective and ultrasensitive detection of acrylamide in heat-treated carbohydrate-rich food
Food Chemistry
DOI
10.1016/j.foodchem.2023.135666
A novel red emissive glutathione-capped carbon dots embedded within molecularly-imprinted polymers for adsorption and fluorescent sensing of malachite green in food samples
MICROCHEMICAL JOURNAL
DOI
10.1016/j.microc.2025.113376
A ratiometric fluorescence nanosensor for glutathione detection based on spatially confined dual-emission of ?-lipoic acid-modified gold nanoclusters and silicon nanoparticles
Analytical Methods
DOI
10.1039/d4ay01525h
Azide-modified carbon dots as molecular probes for clinical monitoring of 3?-hydroxytibolone in hormone replacement therapy
MICROCHEMICAL JOURNAL
DOI
10.1016/j.microc.2025.115550
Catechol-selective recognition using phenylboronic acid carbon dots: application to methyldopa detection and pharmacokinetic analysis in human volunteers
MICROCHEMICAL JOURNAL
DOI
10.1016/j.microc.2025.116331
Colorimetric and fluorometric dual-mode determination of hypochlorite based on redox-mediated quenching
RSC Advances
DOI
10.1039/d3ra05870k
Colorimetric “off–on” sensing of penicillamine via copper-mediated modulation of laccase-mimetic activity of trimanganese tetroxide nanoflowers
SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY
DOI
10.1016/j.saa.2025.127257
Construction of MIP/Bi2S3 nanoparticles/rGO nanoprobe for simultaneous electrochemical determination of amoxicillin and clavulanic acid
Journal of Alloys and Compounds
DOI
10.1016/j.jallcom.2023.171180
Developing a switch “OFF-ON” fluorescent probe for detection of melamine based on doubly-protected red emissive copper nanoclusters mediated by Hg2+ ions
SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY
DOI
10.1016/j.saa.2024.125286
Dual-Modal Colorimetric and Fluorescent Sensing of Antineoplastic Drug Fludarabine Via Bimetallic-Doped Nitrogen Carbon Dots Nanozyme
JOURNAL OF CLUSTER SCIENCE
DOI
10.1007/s10876-025-02962-4
Dual-mode nanozyme sensor based on molybdenum, boron, nitrogen, and sulfur co-doped carbon dots for sensitive determination of cefoperazone in milk, serum, and pharmaceutical …
MICROCHEMICAL JOURNAL
DOI
10.1016/j.microc.2025.116592
Electrochemical profiling of cardiovascular biomarker glutathione using a ratiometric-based molecularly imprinted rGO/Ag@ ZIF-67 framework
MICROCHEMICAL JOURNAL
DOI
10.1016/j.microc.2025.115794
Engineered copper-doped carbon dots as peroxidase-mimetic platform for ratiometric fluorescence and colorimetric sensing of anti-cancer drug Ara-C: A new strategy for clinical …
SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY
DOI
10.1016/j.saa.2025.127011
Engineering a novel palladium@ copper metal organic frameworks-functionalized nitrogen-doped MWCNTs for molecular-imprinted electrochemical sensing of fludarabine
MICROCHEMICAL JOURNAL
DOI
10.1016/j.microc.2025.116362
Facile fabrication of boron and nitrogen co-doped carbon dots for “ON–OFF–ON” fluorescence sensing of Al 3+ and F? ions in water samples
RSC Advances
DOI
10.1039/d3ra02919k
Fluorometric detection of quinolones via AIE and FRET with terbium-doped carbon dots and copper nanoclusters
Food Chemistry
DOI
10.1016/j.foodchem.2024.142076
HPLC/UV approach method for the first simultaneous estimation of molnupiravir and ertapenem as a binary mixture in human plasma and dosage form as a regimen for COVID-19 treatments
BMC Chemistry
DOI
10.1186/s13065-023-01024-y
Integrated catalytic and fluorescence inhibition for nanozyme-based perphenazine detection
MICROCHEMICAL JOURNAL
DOI
10.1016/j.microc.2025.114933
Integrating catalytic and fluorescence quenching strategies: A nanozyme-based platform for rutin sensing in complex matrices
TALANTA
DOI
10.1016/j.talanta.2025.128796
Methylene blue-assisted molecularly-imprinted film modified nitrogen and sulfur co-doped molybdenum carbide for simultaneous electrochemical determination of two hepatotoxic drugs
MICROCHIMICA ACTA
DOI
10.1007/s00604-024-06195-6
Near-infrared carbon dots enable ultra-sensitive fluorometric detection of belzutifan: a novel approach for real-time therapeutic drug monitoring in cancer treatment
Analytical Methods
DOI
10.1039/d5ay01670c
Near-infrared fluorescent probe for selective and sensitive detection of glutathione based on thioctic acid-functionalized Ag/Au NCs-assisted by ferric ion
MICROCHEMICAL JOURNAL
DOI
10.1016/j.microc.2024.110752
Novel fluorometric determination of lenacapavir using orange-emitting carbon dots: A sensitive method for therapeutic drug monitoring in HIV treatment
JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY A-CHEMISTRY
DOI
10.1016/j.jphotochem.2025.116930
Photostable GSH@OsNCs platform for reversible fluorescence modulation and matrix-independent ascorbic acid sensing
MICROCHEMICAL JOURNAL
DOI
10.1016/j.microc.2025.115878
Ratiometric detection of dopamine using NIR carbon dots and Alizarin red S-boronic acid complex: A competitive displacement approach
SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY
DOI
10.1016/j.saa.2025.127251
Redox-driven fluorescent sensing platform for perphenazine detection using 4-aminothiophenol and polyvinylpyrrolidone-stabilized silver nanoclusters
MICROCHEMICAL JOURNAL
DOI
10.1016/j.microc.2025.115292
Selective detection of Selegiline in Parkinson's patient urine via CuAAC-mediated fluorescence quenching of Azide-modified carbon dots
SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY
DOI
10.1016/j.saa.2025.127051
Selective detection of terminal alkyne acaricide via click-reactive carbon dots: applications in food safety monitoring
Analytical Methods
DOI
10.1039/d5ay01524c
Sensing the invisible: Ultrasensitive and selective colorimetric detection of E. coli O157: H7 based on masking the peroxidase-mimetic activity of aptamer-modified Au/Fe3O4
Food Chemistry
DOI
10.1016/j.foodchem.2024.138564
Sensitive detection of amantadine in food matrices using DTT-functionalized gold nanoparticles
RSC Advances
DOI
10.1039/d5ra05197e
Sonochemical synthesis of lanthanum ferrite nanoparticle–decorated carbon nanotubes for simultaneous electrochemical determination of acetaminophen and dopamine
MICROCHIMICA ACTA
DOI
10.1007/s00604-023-06110-5
Strain-promoted azide-alkyne cycloaddition-based fluorometric detection of azvudine using DBCO-functionalized carbon dots
MICROCHIMICA ACTA
DOI
10.1007/s00604-025-07754-1
Sustainable nitrogen-doped carbon dots from biomass for ultrasensitive and selective fluorescent detection of isoliquiritigenin
RSC Advances
DOI
10.1039/d5ra07665j
Ultrasensitive detection of zineb using a CoMn-MOF/rGO molecularly imprinted electrochemical sensor
MICROCHIMICA ACTA
DOI
10.1007/s00604-025-07326-3
Ultrasensitive fluorescent detection of baloxavir marboxil using red-emissive 2-MBZ-capped silver nanoclusters: A rapid signal-off sensing platform
MICROCHEMICAL JOURNAL
DOI
10.1016/j.microc.2025.115156
?-Cyclodextrin-functionalized green-emissive carbon dots for supramolecular recognition and smartphone detection of major Alternaria mycotoxins in tomato paste
MICROCHIMICA ACTA
DOI
10.1007/s00604-026-08036-0
A copper-mediated Fenton-like dual-mode optical sensor for sensitive determination of acetylcholinesterase activity in biological fluids
RSC Advances
DOI
10.1039/d6ra01851c
Colorimetric detection of kasugamycin via silver oxide nanoparticles with intrinsic laccase activity
Food Chemistry
DOI
10.1016/j.foodchem.2026.148063
Dual-mode chlorogenic acid detection via competitive Boronate displacement: Smartphone-assisted monitoring during coffee roasting
MICROCHEMICAL JOURNAL
DOI
10.1016/j.microc.2026.117747
Dual-mode fluorometric and colorimetric detection of catalase activity in fatty liver tissue using Fenton reaction-mediated signal reversal
MICROCHEMICAL JOURNAL
DOI
10.1016/j.microc.2026.117572
HOCl-Mediated Bromothymol Blue Bleaching and Carbon Dot Fluorescence Recovery for Fecal Myeloperoxidase Quantification in Ulcerative Colitis
JOURNAL OF FLUORESCENCE
DOI
10.1007/s10895-026-04791-8
Iron Sequestration–Modulated Dual?Readout Sensing of Pyrophosphate and Alkaline Phosphatase via Fenton Oxidation and Fluorescence Recovery
LUMINESCENCE
DOI
10.1002/bio.70519
Multimodal glutathione sensing using Cu-doped porous carbon nanozyme
MICROCHEMICAL JOURNAL
DOI
10.1016/j.microc.2026.117703
Peroxidase-mimetic carbon dots enable dual-mode resveratrol detection via competitive hydroxyl radical scavenging
MICROCHEMICAL JOURNAL
DOI
10.1016/j.microc.2026.117809
Surface-imprinted NiCoFe?O? nanozyme with peroxidase-like activity for ultrasensitive monitoring of 2, 4-dichlorophenoxyacetic acid in environmental samples
MICROCHEMICAL JOURNAL
DOI
10.1016/j.microc.2026.118066
A bioinspired nanozyme cascade sensor for fluorometric and smartphone-assisted colorimetric cholesterol analysis in serum and food samples
SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY
DOI
10.1016/j.saa.2026.128100
A ratiometric fluorescent probe based on samarium and nitrogen co-doped carbon dots and Ag/Au nanoclusters for sensitive lactoferrin detection in human tears
MICROCHEMICAL JOURNAL
DOI
10.1016/j.microc.2026.118040
A tyrosinase activity biosensor exploiting dopaquinone-driven Fe3+ sequestration for simultaneous fluorometric and colorimetric detection in Cancer cell lysates
MICROCHEMICAL JOURNAL
DOI
10.1016/j.microc.2026.118484
Enzymatic superoxide generation coupled with dual-signal transduction for gallic acid determination in gallnuts
SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY
DOI
10.1016/j.saa.2026.127788
Pharmacophore-targeted fluorescence sensing of ibrutinib via Michael addition-induced electron transfer on thiol-functionalized carbon dots
RSC Advances
DOI
10.1039/d6ra02905a
Transition-metal vanadate/carbon nanotubes synergistic interface for sensitive and selective determination of hazardous antioxidant tert-butylhydroquinone
MICROCHEMICAL JOURNAL
DOI
10.1016/j.microc.2026.118309
| اسم المشروع | وصف المشروع |
|---|---|
| لا يوجد | لا يوجد |
| Fluorescence-Based Detection of Perphenazine Using Biowaste-Derived Carbon Dots: A Pharmacokinetic Study | مسار تمويل أبحاث الطلبة / Student Research Funding Track |
| Sensing the invisible: Ultrasensitive and selective colorimetric detection of E coli O157:H7 based on masking the peroxidase-mimetic activity of aptamer-modified Au/Fe3O4 | Escherichia coli O157:H7 (E coli O157:H7) emerges as a significantly worrisome pathogen associated with foodborne illnesses, emphasizing the imperative for creating precise detection tools In this investigation, we developed a sensitive colorimetric biosensor for detecting E coli O157:H7 It was constructed using a nanozyme comprised of Au@Fe3O4 NPs, which was fabricated and subsequently modified with an aptamer (Apt) The nanozyme harnesses its inherent peroxidase-like activity to facilitate the transformation of reduced TMB into its oxidized form in the presence of H2O2, resulting in a noticeable shift to a blue color However, the presence of E coli O157:H7 effectively diminished the absorbance of oxidized TMB Consequently, the normalized absorbance at 652 nm demonstrates a linear decrease corresponding to concentrations of E coli O157:H7 within the range of 101 to 108 CFU mL−1 with a low limit of detection (LOD, S/N = 3) of 3 CFU mL−1 |
| Fluorometric detection of quinolones via AIE and FRET with terbium-doped carbon dots and copper nanoclusters | Terbium and nitrogen co-doped carbon dots (Tb@N-CDs), combined with α-lipoic acid-functionalized copper nanoclusters (LA@CuNCs), were proposed for the ratiometric detection of quinolone (QA) antibiotics In this system, Tb@N-CDs facilitate the aggregation of LA@CuNCs, enhancing its fluorescence emission at 670 nm via aggregation-induced emission enhancement (AIEE) Meanwhile, the fluorescence emission of Tb@N-CDs at 460 nm diminishes due to Förster resonance energy transfer (FRET) Upon the introduction of QA, the binding between Tb3+ ions and N-CDs weakens, disrupting both AIEE and FRET processes This disruption results in a reduction in fluorescence emission at 670 nm and a concurrent increase at 460 nm The fluorescence response ratio (F460/F670) increases with higher concentrations of ciprofloxacin (CFX), demonstrating a linear range from 0008 to 120 μmol L−1 and LOD of 16 nmol L−1 The method successfully detected CFX in milk and urine samples, achieving recoveries between 977 % and 1038 %, RSD of less than 379 % |
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