Spectrofluorimetric determination of brexpiprazole via quenching of erythrosine B fluorescence: optimization using Box–Behnken design

Razaz Abdulaziz Felemban, Maram H. Abduljabbar, Reem M. Alnemari, Rami M. Alzhrani, Yusuf S. Althobaiti, Mohammed F. Aldawsari, Ahmed Serag and Atiah H. Almalki

Anal. Methods, 2025, 17, 4334
DOI: 10.1039/D5AY00457H

Integrated resonance Rayleigh scattering approach utilizing Box–Behnken experimental design for the facile quantification of prucalopride in pharmaceutical tablets and human urine with sustainability assessment

Khalid M. Badr El-Din, Sayed M. Derayea, Fatma F. Mohammed and Ahmed Abdulhafez Hamad

RSC Adv., 2024, 14, 7797
DOI: 10.1039/D3RA07980E

Facile utility of felumin, a biological dye for the first fluorimetric determination of l-tetramisole drug through an “on–off fluorescence” strategy

Ahmed Abdulhafez Hamad

RSC Adv., 2023, 13, 9361
DOI: 10.1039/D2RA08183K

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

Ahmed Abdulhafez Hamad, Ramadan Ali and Sayed M. Derayea

RSC Adv., 2022, 12, 7413
DOI: 10.1039/D2RA00120A

A green fluorescence turn-off system for meclofenoxate determination by Cilefa Pink B dye

Ahmed Abdulhafez Hamad

RSC Adv., 2022, 12, 26566
DOI: 10.1039/D2RA05128A

Amide–imine conjugate involving gallic acid and naphthalene for nano-molar detection, enrichment and cancer cell imaging of La3+: studies on the catalytic activity of the La3+complex

Ahad Shaikh, Milan Ghosh, Pallabi Mukherjee, Avijit Ghosh, Rostam Ali Molla, Sabyasachi Ta and Debasis Das

New J. Chem., 2020, 44, 13501
DOI: 10.1039/D0NJ02415E

Utility of a xanthene‐based dye for determination of nilotinib using two spectroscopic approaches. Applications to bulk powder, capsules, and spiked human plasma

Diaa Dagher, Heba Elmansi, Jenny Jeehan Nasr and Nahed El‐Enany

Luminescence, 2023, 38, 291
DOI: 10.1002/bio.4448

Green spectrophotometric and spectrofluorimetric determination of biperiden hydrochloride using erythrosine B sensing probe

Shrouk M. Abo Elkheir, Jenny Jeehan M. Nasr, Mohamed I. Walash and Abdallah M. Zeid

Luminescence, 2024, 39
DOI: 10.1002/bio.4725

Integration of a facile sustainable resonance Rayleigh scattering switchable-based system for feasible determination of centrophenoxine, a nootropic and antioxidant agent; application to crude materials and dosage forms

Ahmed Abdulhafez Hamad, Wael A. Mahdi, Sultan Alshehri, Osama M. Soltan, Kamal S. Abdelrahman, Mohamed A.A. Abdel-Aal, Badriah Saad Al-Farhan, Nujud Maslamani, Safaa F. Saleh and Mohamed A. El Hamd

Spectrochimica Acta Part A: Molecular and Biomolecular Spectroscopy, 2024, 313, 124107
DOI: 10.1016/j.saa.2024.124107

Utility of a fluorescent probing strategy for designing a distinctive chemically mutagenized reaction for the determination of an antiepileptic agent; topiramate

Ahmed Abdulhafez Hamad

Talanta Open, 2023, 7, 100179
DOI: 10.1016/j.talo.2022.100179

Facile and Sustainable Electrostatic Integration of Eosin Y Dye for the Assay of the Atomoxetine Drug Through the Enhancement of the RRS Phenomenon

Badriah Saad Al-Farhan, Angum M. M. Ibrahim, Dalin A. Hassan, Safaa F. Saleh and Ahmed Abdulhafez Hamad

J Fluoresc, 2024, 35, 5939
DOI: 10.1007/s10895-024-03952-x

A novel and unusual utility of the cardiosintol drug as a fluoro-prober in the amendment of a highly fluorescent module for determining the non-fluorescent N-acetylcysteine drug

Ahmed A. Hamad and Sayed M. Derayea

Spectrochimica Acta Part A: Molecular and Biomolecular Spectroscopy, 2023, 293, 122460
DOI: 10.1016/j.saa.2023.122460

Factorial design-assisted spectroscopic determination of oxybutynin hydrochloride

Eman Yosrey, Heba Elmansi, Zeinab A. Sheribah and Mohamed El-Sayed Metwally

R. Soc. open sci., 2021, 8
DOI: 10.1098/rsos.211027

Determination of doxepin hydrochloride in spiked human plasma and capsule after derivatization with eosin Y using resonance Rayleigh scattering, second‐order scattering and frequency doubling scattering methods

Jeeva Geogin, Madhuri Patel, Nishith Teraiya, Ashlesha Chauhan, Priti Trivedi, Binit Patel, Samir Patel and Archita Patel

Luminescence, 2023, 38, 753
DOI: 10.1002/bio.4503

One-pot reaction for determination of Asenapine maleate through facile complex formation with xanthine based dye: Application to content uniformity test

Ahmed A. Abu-hassan, Ramadan Ali and Sayed M. Derayea

Spectrochimica Acta Part A: Molecular and Biomolecular Spectroscopy, 2020, 239, 118474
DOI: 10.1016/j.saa.2020.118474

Absorption and Resonance Rayleigh Scattering Spectra of Ag(I) and Erythrosin System and Their Analytical Application in Food Safety

Jian Wang, Shaopu Liu and Wei Shen

Front. Nutr., 2022, 9
DOI: 10.3389/fnut.2022.900215

EFFICACY OF SILVER NANOPARTICLES SYNTHESIZED ON Commiphora gileadensis (BALSAM) EXTRACT AGAINST INFECTIOUS BACTERIA

Bassam Oudh Al johny

JEBAS, 2019, 7, 301
DOI: 10.18006/2019.7(3).301.307

Simultaneous quantitative determination of residues of abamectin, ivermectin, albendazole and its three metabolites in beef and chicken by HPLC-PDA

Zhaoyuan He, Xinrui Shi, Yawen Guo, Fanxun Guan, Pengfei Gao, Yayun Tang, Shuyu Liu, Yali Zhu, Kaizhou Xie and Hailan Chen

Food Chemistry, 2023, 421, 136168
DOI: 10.1016/j.foodchem.2023.136168

Tailoring photocatalysts to modulate oxidative potential of anilides enhances para-selective electrochemical hydroxylation

Jianye Zhang, Zhaoliang Yang, Chunlei Liu, Hao Wan, Zizhao Hao, Xinrui Ji, Pengjie Wang, Hong Yi and Aiwen Lei

Nat Commun, 2024, 15
DOI: 10.1038/s41467-024-51327-4

Development of a sustainable fluorescence-based approach using erythrosine B dye for nanolevel quantification of bepotastine in eye drops and aqueous humor

Badriah Saad Al-Farhan, Safaa F. Saleh, Angum M.M. Ibrahim, Manal A. Alossaimi, Dalin A. Hassan, Sahar Sallam, Ibrahim A. Naguib, Reem H. Obaydo and Ahmed Abdulhafez Hamad

Spectrochimica Acta Part A: Molecular and Biomolecular Spectroscopy, 2025, 343, 126457
DOI: 10.1016/j.saa.2025.126457

An eco‐friendly matrix‐augmented fluorescence spectroscopic approach for the analysis of mitoxantrone, an oncogenic therapy; application to the dosage form and biological matrices

Ahmed A. Hamad, Yasser F. Hassan, Walid E. Eltoukhi, Sayed M. Derayea, Mohammed A. S. Abourehab and Bassam S. Mohammed

Luminescence, 2023, 38, 166
DOI: 10.1002/bio.4437

Designing a unique molecular size-dependent approach for determining levamisole via synergizing Rayleigh Scattering response of Cilefa Pink B dye; application to bulk, dosage forms, and biofluids; method greenness evaluation

Ahmed Abdulhafez Hamad and Ahmed M. Haredy

Talanta Open, 2023, 7, 100196
DOI: 10.1016/j.talo.2023.100196

Novel nano-leveled green switch-off fluorimetric technique for the determination of fexofenadine drug using Cilefa Pink B, a biological dye; raw material, dosage forms, and in vitro application; system kinetic study

Ahmed A. Hamad

Talanta Open, 2022, 6, 100156
DOI: 10.1016/j.talo.2022.100156

Utility of Cilefa Pink B, a food dye in a facile decoration of the first green molecular-size-based fluorescence probe (MSBFP) for determining trimebutine; application to bulk, dosage forms, and real plasma

Ahmed Abdulhafez Hamad

Spectrochimica Acta Part A: Molecular and Biomolecular Spectroscopy, 2023, 288, 122187
DOI: 10.1016/j.saa.2022.122187

Innovative analytical approach using ’on-on++ RRS’ signal enhancement response of erythrosine B, a food dye, for nano-level quantification of sertraline drug in different matrices with sustainability evaluation

Badriah Saad Al-Farhan, Safaa F. Saleh, Reem H. Obaydo, Angum M.M. Ibrahim, Manal A. Alossaimi, Dalin A. Hassan, Ibrahim A. Naguib and Ahmed Abdulhafez Hamad

Microchemical Journal, 2025, 213, 113585
DOI: 10.1016/j.microc.2025.113585

Utility of green chemistry for spectrofluorometric and spectrophotometric analysis of vericiguat via reaction with erythrocin B

Hesham Salem, Amany Abdelaziz, Omar Saied, Micheal Amir, Maemona M. Sadik, Noha Khalid, Nadin Mohsen and Dina Z. Mazen

BMC Chemistry, 2025, 19
DOI: 10.1186/s13065-025-01485-3

In vitro antibacterial activity and in vivo pharmacokinetics of intravenously administered Amikacin-loaded Liposomes for the management of bacterial septicaemia

Amala Maxwell, Bhim Bahadur Chaudhari, Pinal Chaudhari, Koteshwara Ananthamurthy, Jesil Aranjani, Sudheer Moorkoth, Vivek Ghate and Shaila Lewis

Colloids and Surfaces B: Biointerfaces, 2022, 220, 112892
DOI: 10.1016/j.colsurfb.2022.112892

A novel high throughput 96‐well‐based fluorimetric method to measure amikacin in pharmaceutical formulations: development using response surface methodology

Amala Maxwell, Elizabeth Mary, Vivek Ghate, Jesil Aranjani and Shaila Lewis

Luminescence, 2022, 37, 930
DOI: 10.1002/bio.4238

Use of eosin for green spectroscopic determination of mebendazole

Aya Roshdy, Heba Elmansi, Shereen Shalan and Amina Elbrashy

Luminescence, 2020, 35, 788
DOI: 10.1002/bio.3785

Spectrophotometric determination of Zr(IV), Hg(II) and U(VI) in solution with their analytical applications: Structural characterization and molecular docking of the solid complexes

Walaa H. El-Shwiniy, Sameh I. El-Desoky, Ali Alrabie and Badr Abd El-wahaab

Spectrochimica Acta Part A: Molecular and Biomolecular Spectroscopy, 2022, 279, 121400
DOI: 10.1016/j.saa.2022.121400

Facile electrostatic incorporation of the food dye, Dianthine B, for an ultrasensitive tracking and quantification of fexofenadine drug employing an ''on-on++ fluorescence'' strategy

Ahmed Abdulhafez Hamad and Afnan S. Batubara

Talanta Open, 2023, 7, 100217
DOI: 10.1016/j.talo.2023.100217