All Stories

  1. Enzymatic superoxide generation coupled with dual-signal transduction for gallic acid determination in gallnuts

    Article • Spectrochimica Acta Part A Molecular and Biomolecular Spectroscopy, September 2026, Elsevier

    Ramadan Ali

  2. Dual-mode fluorometric and colorimetric detection of catalase activity in fatty liver tissue using Fenton reaction-mediated signal reversal

    Article • Microchemical Journal, May 2026, Elsevier

    Ramadan Ali

  3. Multimodal glutathione sensing using Cu-doped porous carbon nanozyme

    Article • Microchemical Journal, May 2026, Elsevier

    Ramadan Ali

  4. Dual-mode chlorogenic acid detection via competitive Boronate displacement: Smartphone-assisted monitoring during coffee roasting

    Article • Microchemical Journal, May 2026, Elsevier

    Ramadan Ali

  5. Peroxidase-mimetic carbon dots enable dual-mode resveratrol detection via competitive hydroxyl radical scavenging

    Article • Microchemical Journal, May 2026, Elsevier

    Ramadan Ali

  6. Colorimetric detection of kasugamycin via silver oxide nanoparticles with intrinsic laccase activity

    Article • Food Chemistry, April 2026, Elsevier

    Ramadan Ali

  7. Colorimetric “off–on” sensing of penicillamine via copper-mediated modulation of laccase-mimetic activity of trimanganese tetroxide nanoflowers

    Article • Spectrochimica Acta Part A Molecular and Biomolecular Spectroscopy, March 2026, Elsevier

    Ramadan Ali

  8. Ratiometric detection of dopamine using NIR carbon dots and Alizarin red S-boronic acid complex: A competitive displacement approach

    Article • Spectrochimica Acta Part A Molecular and Biomolecular Spectroscopy, March 2026, Elsevier

    Ramadan Ali

  9. 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 bioanalysis

    Article • Spectrochimica Acta Part A Molecular and Biomolecular Spectroscopy, February 2026, Elsevier

    Ramadan Ali

  10. Selective detection of Selegiline in Parkinson's patient urine via CuAAC-mediated fluorescence quenching of Azide-modified carbon dots

    Article • Spectrochimica Acta Part A Molecular and Biomolecular Spectroscopy, February 2026, Elsevier

    Ramadan Ali

  11. Integrating catalytic and fluorescence quenching strategies: A nanozyme-based platform for rutin sensing in complex matrices

    Article • Talanta, January 2026, Elsevier

    Ramadan Ali

  12. Engineering a novel palladium@copper metal organic frameworks-functionalized nitrogen-doped MWCNTs for molecular-imprinted electrochemical sensing of fludarabine

    Article • Microchemical Journal, January 2026, Elsevier

    Ramadan Ali

  13. Catechol-selective recognition using phenylboronic acid carbon dots: application to methyldopa detection and pharmacokinetic analysis in human volunteers

    Article • Microchemical Journal, January 2026, Elsevier

    Ramadan Ali

  14. 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 injections

    Article • Microchemical Journal, January 2026, Elsevier

    Ramadan Ali

  15. Novel green-emissive carbon dots as a dual-purpose fluorometric tool for sensitive vismodegib detection and pharmacokinetic analysis

    Article • Analytical Methods, January 2026, Royal Society of Chemistry

    Ramadan Ali

  16. A novel NIR fluorescent probe based on p -mercaptophenylboronic acid-functionalized copper nanoclusters for capmatinib quantification

    Article • Analytical Methods, January 2026, Royal Society of Chemistry

    Ramadan Ali

  17. Dual-Modal Colorimetric and Fluorescent Sensing of Antineoplastic Drug Fludarabine Via Bimetallic-Doped Nitrogen Carbon Dots Nanozyme

    Article • Journal of Cluster Science, December 2025, Springer Science + Business Media

    Ramadan Ali

  18. Strain-promoted azide-alkyne cycloaddition-based fluorometric detection of azvudine using DBCO-functionalized carbon dots

    Article • Microchimica Acta, December 2025, Springer Science + Business Media

    Ramadan Ali

  19. Photostable GSH@OsNCs platform for reversible fluorescence modulation and matrix-independent ascorbic acid sensing

    Article • Microchemical Journal, December 2025, Elsevier

    Ramadan Ali

  20. Ultrasensitive fluorescent detection of baloxavir marboxil using red-emissive 2-MBZ-capped silver nanoclusters: A rapid signal-off sensing platform

    Article • Microchemical Journal, November 2025, Elsevier

    Ramadan Ali

  21. Redox-driven fluorescent sensing platform for perphenazine detection using 4-aminothiophenol and polyvinylpyrrolidone-stabilized silver nanoclusters

    Article • Microchemical Journal, November 2025, Elsevier

    Ramadan Ali

  22. Azide-modified carbon dots as molecular probes for clinical monitoring of 3α-hydroxytibolone in hormone replacement therapy

    Article • Microchemical Journal, November 2025, Elsevier

    Ramadan Ali

  23. Electrochemical profiling of cardiovascular biomarker glutathione using a ratiometric-based molecularly imprinted rGO/Ag@ZIF-67 framework

    Article • Microchemical Journal, November 2025, Elsevier

    Ramadan Ali

  24. Integrated catalytic and fluorescence inhibition for nanozyme-based perphenazine detection

    Article • Microchemical Journal, October 2025, Elsevier

    Ramadan Ali

  25. Ultrasensitive detection of zineb using a CoMn-MOF/rGO molecularly imprinted electrochemical sensor

    Article • Microchimica Acta, July 2025, Springer Science + Business Media

    Ramadan Ali

  26. A novel red emissive glutathione-capped carbon dots embedded within molecularly-imprinted polymers for adsorption and fluorescent sensing of malachite green in food samples

    Article • Microchemical Journal, May 2025, Elsevier

    Ramadan Ali

  27. Developing a switch “OFF-ON” fluorescent probe for detection of melamine based on doubly-protected red emissive copper nanoclusters mediated by Hg2+ ions

    Article • Spectrochimica Acta Part A Molecular and Biomolecular Spectroscopy, February 2025, Elsevier

    Ramadan Ali

  28. Fluorometric detection of quinolones via AIE and FRET with terbium-doped carbon dots and copper nanoclusters

    Article • Food Chemistry, February 2025, Elsevier

    Ramadan Ali

  29. Polyvinylpyrrolidone and 4-mercaptobenzoic acid-functionalized nickel nanoclusters for selective and sensitive detection of glutathione assisted by Fe3+

    Article • Analytical Methods, January 2025, Royal Society of Chemistry

    Ramadan Ali

  30. Sensitive detection of amantadine in food matrices using DTT-functionalized gold nanoparticles

    Article • RSC Advances, January 2025, Royal Society of Chemistry

    Ramadan Ali

  31. Selective detection of terminal alkyne acaricide via click-reactive carbon dots: applications in food safety monitoring

    Article • Analytical Methods, January 2025, Royal Society of Chemistry

    Ramadan Ali

  32. Sustainable nitrogen-doped carbon dots from biomass for ultrasensitive and selective fluorescent detection of isoliquiritigenin

    Article • RSC Advances, January 2025, Royal Society of Chemistry

    Ramadan Ali

  33. Near-infrared carbon dots enable ultra-sensitive fluorometric detection of belzutifan: a novel approach for real-time therapeutic drug monitoring in cancer treatment

    Article • Analytical Methods, January 2025, Royal Society of Chemistry

    Ramadan Ali

  34. Near-infrared fluorescent probe for selective and sensitive detection of glutathione based on thioctic acid-functionalized Ag/Au NCs-assisted by ferric ion

    Article • Microchemical Journal, June 2024, Elsevier

    Ramadan Ali

  35. 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

    Article • Food Chemistry, June 2024, Elsevier

    Ramadan Ali

  36. Methylene blue-assisted molecularly-imprinted film modified nitrogen and sulfur co-doped molybdenum carbide for simultaneous electrochemical determination of two hepatotoxic drugs

    Article • Microchimica Acta, February 2024, Springer Science + Business Media

    Ramadan Ali

  37. A ratiometric fluorescence nanosensor for glutathione detection based on spatially confined dual-emission of α-lipoic acid-modified gold nanoclusters and silicon nanoparticles

    Article • Analytical Methods, January 2024, Royal Society of Chemistry

    Ramadan Ali

  38. Molecular imprinting technology for electrochemical sensing of kasugamycin in food products based on Cu2+/Cu+ stripping current

    Article • Analytical Methods, January 2024, Royal Society of Chemistry

    Ramadan Ali

  39. Sonochemical synthesis of lanthanum ferrite nanoparticle–decorated carbon nanotubes for simultaneous electrochemical determination of acetaminophen and dopamine

    Article • Microchimica Acta, December 2023, Springer Science + Business Media

    Ramadan Ali

  40. Construction of MIP/Bi2S3 nanoparticles/rGO nanoprobe for simultaneous electrochemical determination of amoxicillin and clavulanic acid

    Article • Journal of Alloys and Compounds, November 2023, Elsevier

    Ramadan Ali

  41. 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

    Article • BMC Chemistry, September 2023, Springer Science + Business Media

    Ramadan Ali

  42. A dual-recognition-controlled electrochemical biosensor for selective and ultrasensitive detection of acrylamide in heat-treated carbohydrate-rich food

    Article • Food Chemistry, July 2023, Elsevier

    Ramadan Ali

  43. Colorimetric and fluorometric dual-mode determination of hypochlorite based on redox-mediated quenching

    Article • RSC Advances, January 2023, Royal Society of Chemistry

    Ramadan Ali

  44. Facile fabrication of boron and nitrogen co-doped carbon dots for “ON–OFF–ON” fluorescence sensing of Al3+ and F− ions in water samples

    Article • RSC Advances, January 2023, Royal Society of Chemistry

    Ramadan Ali

  45. An innovative dual recognition aptasensor for specific detection of Staphylococcus aureus based on Au/Fe3O4 binary hybrid

    Article • Scientific Reports, July 2022, Springer Science + Business Media

    Ramadan Ali

  46. Fluorometric and electrochemical dual-mode detection of toxic flavonoid rutin based on new nitrogen and sulfur co-doped carbon dots: Enhanced selectivity based on masking the interfering flavonoids with BSA complexation

    Article • Journal of Food Composition and Analysis, May 2022, Elsevier

    Ramadan Ali

  47. Double-signal quantification of amoxicillin based on interaction with 4-aminoantipyrine at copper and nitrogen co-doped carbon quantum dots as an artificial nanozyme

    Article • Microchimica Acta, April 2022, Springer Science + Business Media

    Ramadan Ali

  48. A simple single jar “on–off fluorescence” designed system for the determination of mitoxantrone using an eosin Y dye in raw powder, vial, and human biofluids

    Article • RSC Advances, January 2022, Royal Society of Chemistry

    Ramadan Ali

  49. Two facile approaches based on association complex with erythrosine-B for nano-level analysis of duloxetine: application to content uniformity

    Article • Royal Society Open Science, September 2021, Royal Society Publishing

    Ramadan Ali

  50. Investigation of the association complex formed between dapoxetine and erythrosine‐B for facile dapoxetine assay in pharmaceutical formulation using resonance Rayleigh scattering and spectrofluorimetric techniques

    Article • Luminescence, August 2021, Wiley

    Ramadan Ali

  51. Facile fabrication of a novel 3D rose like lanthanum doped zirconia decorated reduced graphene oxide nanosheets: An efficient electro-catalyst for electrochemical reduction of futuristic anti-cancer drug salinomycin during pharmacokinetic study [Biosen...

    Article • Biosensors and Bioelectronics, July 2021, Elsevier

    Ramadan Ali

  52. A new convenient methodology based on dihydropyridine derivative for selective fluorimetric analysis of baclofen: Application to spiked urine and content uniformity evaluation

    Article • Spectrochimica Acta Part A Molecular and Biomolecular Spectroscopy, March 2021, Elsevier

    Ramadan Ali

  53. Innovative Thin-Layer Chromatography/Fluorescence Detection Approach for Sensitive and Specific Determination of Ledipasvir in Rats’ Feces and Pharmaceutical Dosage Form

    Article • Journal of Chromatographic Science, February 2021, Oxford University Press (OUP)

    Ramadan Ali

  54. A new feasible approach based on utility of ninhydrin for selective fluorimetric analysis of baclofen. Application to content uniformity evaluation

    Article • Luminescence, November 2020, Wiley

    Ramadan Ali

  55. Investigating the interaction of mitoxantrone with anionic surfactants by spectrofluorimetry and its application for the feasible analysis of pharmaceutical preparation and biological fluids

    Article • Luminescence, November 2020, Wiley

    Ramadan Ali

  56. Facile one-pot green solvent synergized fluorescence reaction for determination of doxorubicin in presence of paclitaxel; co-administered drug, application to stability study and analysis in bulk, vial and biological fluids

    Article • Arabian Journal of Chemistry, November 2020, Elsevier

    Ramadan Ali

  57. One-pot micellar augmented native fluorescence for facile fluorimetric assay of dapoxetine hydrochloride in biological plasma and tablets

    Article • Spectrochimica Acta Part A Molecular and Biomolecular Spectroscopy, October 2020, Elsevier

    Ramadan Ali

  58. Enzyme-free and label-free strategy for electrochemical oxaliplatin aptasensing by using rGO/MWCNTs loaded with AuPd nanoparticles as signal probes and electro-catalytic enhancers

    Article • Talanta, September 2020, Elsevier

    Ramadan Ali

  59. Thin‐layer chromatography/fluorescence detection approach for sensitive and selective determination of hepatitis C virus antiviral (velpatasvir): application to human plasma

    Article • Luminescence, April 2020, Wiley

    Ramadan Ali

  60. A novel imidazole derived colorimetric and fluorometric chemosensor for bifunctional detection of copper (II) and sulphide ions in environmental water samples

    Article • Spectrochimica Acta Part A Molecular and Biomolecular Spectroscopy, March 2020, Elsevier

    Ramadan Ali

  61. Facile fabrication of a novel 3D rose like lanthanum doped zirconia decorated reduced graphene oxide nanosheets: An efficient electro-catalyst for electrochemical reduction of futuristic anti-cancer drug salinomycin during pharmacokinetic study

    Article • Biosensors and Bioelectronics, February 2020, Elsevier

    Ramadan Ali

  62. A new approach based on isoindole formation reaction for sensitive fluorimetric assay of milnacipran in tablets and biological fluids (plasma/urine)

    Article • RSC Advances, January 2020, Royal Society of Chemistry

    Ramadan Ali

  63. Micellar‐based spectrofluorimetric method for the selective determination of ledipasvir in the presence of sofosbuvir: application to dosage forms and human plasma

    Article • Luminescence, December 2019, Wiley

    Ramadan Ali

  64. Facile fabrication of a novel disposable pencil graphite electrode for simultaneous determination of promising immunosuppressant drugs mycophenolate mofetil and tacrolimus in human biological fluids

    Article • Analytical and Bioanalytical Chemistry, November 2019, Springer Science + Business Media

    Ramadan Ali

  65. Investigating erythrosine B as a fluorimetric probe for the determination of benzimidazole drugs via facile complexation reaction

    Article • Microchemical Journal, September 2019, Elsevier

    Ramadan Ali

  66. A clinical study for the evaluation of pharmacokinetic interaction between daclatasvir and fluoxetine

    Article • Journal of Pharmaceutical and Biomedical Analysis, July 2019, Elsevier

    Ramadan Ali

  67. Facile synthesis of novel nanocomposite prepared from spinel copper ferrite and reduced graphene oxide in the presence of anti-fouling agent diethyl ammonium acid sulphate for ultrasensitive detection of rosuvastatin in human plasma

    Article • Microchemical Journal, June 2019, Elsevier

    Ramadan Ali

  68. Employ fourier transform infrared spectroscopy spectroscopy for determination of second-generation anti-HCV (sofosbuvir, daclatasvir) drugs: Application to uniformity of dosage units

    Article • Vibrational Spectroscopy, May 2019, Elsevier

    Ramadan Ali

  69. A reductant colorimetric method for the rapid detection of certain cephalosporins via the production of gold and silver nanoparticles

    Article • Microchemical Journal, May 2019, Elsevier

    Ramadan Ali

  70. Xanthene based spectroscopic probe for the analysis of HCV antiviral, daclatasvir dihydrochloride, through feasible complexation reaction

    Article • Microchemical Journal, March 2019, Elsevier

    Ramadan Ali

  71. Specific, highly sensitive and simple spectrofluorimetric method for quantification of daclatasvir in HCV human plasma patients and in tablets dosage form

    Article • Open Chemistry, February 2019, De Gruyter

    Ramadan Ali

  72. Micellar spectrofluorimetric protocol for the innovative determination of HCV antiviral (daclatasvir) with enhanced sensitivity: Application to human plasma and stability study

    Article • Spectrochimica Acta Part A Molecular and Biomolecular Spectroscopy, January 2019, Elsevier

    Ramadan Ali

  73. Novel spectrofluorimetric approach for determination of ledipasvir through UV-irradiation: application to biological fluids, pharmacokinetic study and content uniformity test

    Article • RSC Advances, January 2019, Royal Society of Chemistry

    Ramadan Ali

  74. A novel molecularly imprinted sensing platform based on MWCNTs/AuNPs decorated 3D starfish like hollow nickel skeleton as a highly conductive nanocomposite for selective and ultrasensitive analysis of a novel pan-genotypic inhibitor velpatasvir in body...

    Article • Journal of Molecular Liquids, December 2018, Elsevier

    Ramadan Ali

  75. Improved spectrofluorimetric determination of mebendazole, a benzimidazole anthelmintic drug, through complex formation with lanthanum (III); Application to pharmaceutical preparations and human plasma

    Article • Journal of Molecular Liquids, December 2018, Elsevier

    Ramadan Ali

  76. Specific stability indicating spectrofluorimetric method for determination of ledipasvir in the presence of its confirmed degradation products; application in human plasma

    Article • Spectrochimica Acta Part A Molecular and Biomolecular Spectroscopy, September 2018, Elsevier

    Ramadan Ali

  77. Study on fluorescence properties of HCV antiviral (velpatasvir) and its fluorimetric determination in presence of sofosbuvir; application to stability study and human plasma

    Article • Luminescence, August 2018, Wiley

    Ramadan Ali

  78. A facile synthesis of 3D NiFe2O4 nanospheres anchored on a novel ionic liquid modified reduced graphene oxide for electrochemical sensing of ledipasvir: Application to human pharmacokinetic study

    Article • Biosensors and Bioelectronics, June 2018, Elsevier

    Ramadan Ali

  79. Synthesis of Fe3O4 nanobead-functionalized 8-hydroxyquinoline sulfonic acid supported by an ion-imprinted biopolymer as a recognition site for Al3+ ions: estimation in human serum and water samples

    Article • New Journal of Chemistry, January 2018, Royal Society of Chemistry

    Ramadan Ali

  80. Enhanced dispersive solid phase extraction assisted by cloud point strategy prior to fluorometric determination of anti-hepatitis C drug velpatasvir in pharmaceutical tablets and body fluids

    Article • RSC Advances, January 2018, Royal Society of Chemistry

    Ramadan Ali

  81. Facile complexation reactions for the selective spectrofluorimetric determination of albendazole in oral dosage forms and spiked human plasma

    Article • RSC Advances, January 2018, Royal Society of Chemistry

    Ramadan Ali

  82. Spectroscopic Analysis and Antibacterial Evaluation of Certain Third Generation Cephalosporins Through Metal Complexation

    Article • Analytical Chemistry Letters, July 2017, Taylor & Francis

    Ramadan Ali

  83. Solid-State FTIR Spectroscopic Study of Two Binary Mixtures: Cefepime-Metronidazole and Cefoperazone-Sulbactam

    Article • Journal of Spectroscopy, January 2017, Hindawi Publishing Corporation

    Prof Sayed Derayea, Ramadan Ali

  84. Application of silver nanoparticles for the spectrophotometric determination of three benzimidazole anthelmintic drugs in their pharmaceutical preparations

    Article • Journal of Applied Biology & Biotechnology, January 2017, Journal of Applied Pharmaceutical Science

    Ramadan Ali

  85. Validated Ultraviolet-Spectrometric Method for Determination of Sofosbuvir in Tablets Formulation

    Article • Journal of Applied Biology & Biotechnology, January 2017, Journal of Applied Pharmaceutical Science

    Ramadan Ali

  86. FORMULATION AND EVALUATION OF ORAL SUSTAINED RELEASE ETHYL CELLULOSE MICROPARTICLES INCORPORATED WITH FLURBIPROFEN

    Article • Bulletin of Pharmaceutical Sciences Assiut, December 2016, Egypts Presidential Specialized Council for Education and Scientific Research

    Ramadan Ali

  87. Sensitive Spectrofluorimetric Protocol for the Determination of Fluoxetine and Paroxetine Through Binary Complex Formation with Eosin Y

    Article • Analytical Chemistry Letters, September 2016, Taylor & Francis

    Prof Sayed Derayea, Ramadan Ali

  88. Retinoid resistance and multifaceted impairment of retinoic acid synthesis in glioblastoma

    Article • Glia, May 2015, Wiley

    Ramadan Ali

  89. Liposomal Sphingomyelin Influences the Cellular Lipid Profile of Human Lymphoblastic Leukemia Cells without Effect on P-Glycoprotein Activity

    Article • Molecular Pharmaceutics, February 2013, American Chemical Society (ACS)

    Ramadan Ali

  90. Quantification of retinoid concentrations in human serum and brain tumor tissues

    Article • Analytica Chimica Acta, May 2012, Elsevier

    Ramadan Ali

  91. Aberrant Expression of Retinoic Acid Signaling Molecules Influences Patient Survival in Astrocytic Gliomas

    Article • American Journal Of Pathology, May 2011, Elsevier

    Ramadan Ali

  92. Stability-Indicating Thin-Layer Chromatographic Method for Quantitative Determination of Ribavirin

    Article • Journal of Chromatographic Science, January 2008, Oxford University Press (OUP)

    Ramadan Ali

  93. Simple and sensitive spectrophotometric methods for determination of amantadine hydrochloride

    Article • Journal of Applied Spectroscopy, November 2006, Springer Science + Business Media

    Ramadan Ali

  94. Application of Inorganic Oxidants to the Spectrophotometric Determination of Ribavirin in Bulk and Capsules

    Article • Journal of AOAC International, March 2006, Oxford University Press (OUP)

    Ramadan Ali

  95. Simple fluorimetric method for determination of certain antiviral drugs via their oxidation with cerium (IV)

    Article • Il Farmaco, June 2005, Elsevier

    Ramadan Ali