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Abumelha HM, Sayqal A, Snari RM, Alkhamis KM, Alharbi A, Al-Ahmed ZA, El-Metwaly NM. Novel Deliberately Sensitive and Selective Tetrahydrozoline Voltammetric Sensors Integrated with a Copper Oxide Nanoparticle/Zeolite Platform. ACS OMEGA 2024; 9:13458-13468. [PMID: 38524465 PMCID: PMC10955712 DOI: 10.1021/acsomega.4c00370] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/11/2024] [Revised: 02/28/2024] [Accepted: 03/01/2024] [Indexed: 03/26/2024]
Abstract
The present study introduced a novel disposable screen-printed carbon electrodes (SPCEs) modified with copper oxide/zeolite nanostructures for eco-friendly selective differential pulse voltammetric quantification of tetrahydrozoline (THZ) in eyedrop samples and biological fluids. Modification of the electrode matrix with copper oxide nanoparticles/zeolite nanostructures (CuONPs/ZY) with their effective and synergistic electrocatalytic activity enhanced the electrode performance against electrooxidation of THZ at 0.960 V in BR at pH 9.0 with a diffusion-controlled reaction mechanism. The tentative oxidation mechanism based on molecular orbital calculations postulates the oxidation of THZ molecules through oxidation of a nitrogen atom five-membered ring and the participation of two electrons/protons in the electrode reaction. Linear calibration curves were illustrated within a wide THZ concentration range from 0.24 to 57.2 μg mL-1 recording a limit of detection (LOD) value of 0.0799 μg mL-1. The CuONPs/ZY/SPEs exhibited improved performance compared with the sole reported THZ sensor-based gold film-plated carbon paste electrodes, in addition to their high reproducibility of fabrication and measurement and prolonged shelf lifetime. Tetrahydrozoline was successfully assayed in the presence of excipients, degradation products, and chloramphenicol. The presented voltammetric sensor can be considered as an eco-friendly and reliable analytical approach for monitoring THZ residues in eye drop samples and biological fluids with high recovery compared with the official pharmacopeial analytical protocol. The presented sensors were assessed according to an EcoScale tool and also compared with the reported THZ sensor.
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Affiliation(s)
- Hana M. Abumelha
- Department
of Chemistry, College of Science, Princess
Nourah bint Abdulrahman University, P.O. Box 84428, Riyadh 11671, Saudi Arabia
| | - Ali Sayqal
- Department
of Chemistry, College of Sciences, Umm Al-Qura
University, Makkah 24230, Saudi Arabia
| | - Razan M. Snari
- Department
of Chemistry, College of Sciences, Umm Al-Qura
University, Makkah 24230, Saudi Arabia
| | - Kholood M. Alkhamis
- Department
of Chemistry, Faculty of Science, University
of Tabouk, Tabouk 71421, Saudi Arabia
| | - Arwa Alharbi
- Department
of Chemistry, College of Sciences, Umm Al-Qura
University, Makkah 24230, Saudi Arabia
| | - Zehbah A. Al-Ahmed
- Applied
College Dhahran Aljanoub, King Khalid University, Abha 61421, Saudi Arabia
| | - Nashwa M. El-Metwaly
- Department
of Chemistry, College of Sciences, Umm Al-Qura
University, Makkah 24230, Saudi Arabia
- Department
of Chemistry, Faculty of Science, Mansoura
University, Mansoura 002050, Egypt
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Mouhamed AA, Eltanany BM, Mostafa NM, Elwaie TA, Nadim AH. Design of screen-printed potentiometric platform for sensitive determination of mirabegron in spiked human plasma; molecular docking and transducer optimization. RSC Adv 2023; 13:23138-23146. [PMID: 37533779 PMCID: PMC10391324 DOI: 10.1039/d3ra02343e] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/10/2023] [Accepted: 07/27/2023] [Indexed: 08/04/2023] Open
Abstract
The integration of molecular modelling simulation and electrochemical sensors is of high interest. Herein, for the first time, a portable solid-contact potentiometric electrode was designed for the sensitive determination of mirabegron (MIR) in human plasma and pharmaceutical formulation. A two-step optimization protocol was investigated for the fabrication of an ion on sensing polymeric membrane. First, molecular docking was used for optimum ionophore selection. Calix[6]arene showed the highest affinity towards MIR with a better docking score (-4.35) and potential energy (-65.23) compared to other calixarene derivatives. Second, carbon nanotubes and gold nanoparticles were investigated as ion-electron transducers using a drop-casting procedure. Gold nanoparticle-based sensors showed better slope, potential stability, and rapid response compared to carbon nanotubes. The proposed solid contact sensors (V-VII) showed comparable sensitivity and ease of handling compared to liquid contact sensors (I-IV). The optimized gold nanoparticles sensor VII produced a Nernstian response over the range of 9.77 × 10-7 to 1 × 10-3 M with LOD of 2.4 × 10-7 M. It has also been used to determine MIR in its pharmaceutical formulation in the presence of a co-formulated antioxidant butylated hydroxytoluene and spiked human plasma. This would offer a feasible and economic platform for monitoring MIR in pharmaceutical preparation and biological fluids.
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Affiliation(s)
- Aya A Mouhamed
- Department of Analytical Chemistry, Faculty of Pharmacy, Cairo University Kasr El-Aini St. Cairo 11562 Egypt
| | - Basma M Eltanany
- Department of Analytical Chemistry, Faculty of Pharmacy, Cairo University Kasr El-Aini St. Cairo 11562 Egypt
| | - Nadia M Mostafa
- Department of Analytical Chemistry, Faculty of Pharmacy, Cairo University Kasr El-Aini St. Cairo 11562 Egypt
| | - Tamer A Elwaie
- Department of Pharmaceutical Chemistry, Faculty of Pharmacy, Cairo University Kasr El-Aini St. Cairo 11562 Egypt
- Department of Pharmaceutical Sciences, Irma Lerma Rangel College of Pharmacy, Texas A&M Health Science Centre School of Pharmacy Texas 78363 USA
| | - Ahmed H Nadim
- Department of Analytical Chemistry, Faculty of Pharmacy, Cairo University Kasr El-Aini St. Cairo 11562 Egypt
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Mohamed EH, Mahmoud AM, Nashat NW, El-Mosallamy SS. Fabrication of novel electropolymerized conductive polymer of hydrophobic perfluorinated aniline as transducer layer on glassy carbon electrode: application to midazolam as a model drug of benzodiazepines. BMC Chem 2023; 17:30. [PMID: 37016406 PMCID: PMC10074816 DOI: 10.1186/s13065-023-00945-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/09/2023] [Accepted: 03/27/2023] [Indexed: 04/06/2023] Open
Abstract
The objective of this study is to fabricate solid-contact ion selective electrodes (SC-ISEs) that have long term stable potential. Various conducting polymers such as polyaniline and its derivatives have been successfully employed to improve the potential stability in SC-ISEs. Recently, the role of hydrophobicity at the interface between the conducting polymer solid contact and the ion sensing membrane has been investigated and figured out that the hydrophobic interfaces preclude water layer formation that deteriorate the SC-ISEs potential stability and reproducibility. In this work, a hydrophobic polyaniline derivative was fabricated on the surface of a glassy carbon electrode by electropolymerization of perfluorinated aniline monomers in acidic solution. The electropolymerized hydrophobic polymer was characterized by electrochemical impedance spectroscopy and X-ray photoelectron spectroscopy. The fabricated electrode was employed for determination of midazolam-a model drug-in pharmaceutical formulation without prior extraction. The SC-ISEs performance was optimized, and the potential drift was compared to control SC-ISEs, the SC-ISE linear range was 1 × 10-6-1 × 10-2 M, LOD was estimated to be 9.0 × 10-7 M, and potential drift was reduced to 100 μV/h.
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Affiliation(s)
- Ekram H Mohamed
- Pharmaceutical Analytical Chemistry Department, Faculty of Pharmacy, The British University in Egypt, El-Shorouk City, 11837, Egypt
| | - Amr M Mahmoud
- Analytical Chemistry Department, Faculty of Pharmacy, Cairo University, Kasr El Aini, Cairo, 11562, Egypt
| | - Nancy W Nashat
- Analytical Chemistry Department, Faculty of Pharmacy, Cairo University, Kasr El Aini, Cairo, 11562, Egypt.
| | - Sally S El-Mosallamy
- Analytical Chemistry Department, Faculty of Pharmacy, Cairo University, Kasr El Aini, Cairo, 11562, Egypt
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Soliman RM, Rostom Y, Mahmoud AM, Fayez YM, Mostafa NM, Monir HH. Novel Fabricated Potentiometric Sensors for Selective Determination of Carbinoxamine with Different Greenness Evaluation Perspectives. Microchem J 2023. [DOI: 10.1016/j.microc.2022.108381] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
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Elbalkiny HT, Samir A. Green potentiometric electrode for determination of salbutamol in biological samples. Anal Biochem 2022; 659:114949. [PMID: 36209896 DOI: 10.1016/j.ab.2022.114949] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/18/2022] [Revised: 09/29/2022] [Accepted: 10/03/2022] [Indexed: 12/14/2022]
Abstract
Clinical drug analyses and identification of pharmaceuticals in biological samples are highly crucial for therapeutic drug monitoring, pharmacokinetic studies, and screening of illicit drugs. Various analytical tools, such as potentiometric electrodes, are used to conduct these investigations. These potentiometric electrodes are superior to other techniques in terms of greenness and cost efficacy, and thus present a good alternative for researchers. In this study, we develop an advanced electrode for the in-situ monitoring of salbutamol in plasma, this electrode was synthesized using multiwalled carbon nanotubes (MWCNT) as hydrophobic conductive substance and copper oxide nanoparticle (CuO NP) as a surface modifier, the developed electrode was compared to traditional liquid contact electrode as well as solid contact electrode and proved its superiority. The use of MWCNT improved the stability of the electrode via preventing the formation of this water layer and the CuO NP improved the sensitivity due to its high surface area and rich electronic properties. CuO NP modified electrode was used for the determination of salbutamol with a Nernstian slope of 57.4 over a linearity range of range 1.0 × 10-7- 1.0 × 10-2 M, and a detection limit of 4.0 × 10-7 M. The proposed electrode was effectively applied for the determination of the cited drug in rat plasma without interference and compared with chromatographic reported method. The proposed method is economic as it has a low sample analysis cost, time saving and needs fewer manipulation steps and a simple convenient device. It also proved to be a greener method when compared with chromatographic methods using an eco-scale metric system.
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Affiliation(s)
- Heba T Elbalkiny
- Analytical Chemistry Department, Faculty of Pharmacy, October University for Modern Sciences and Arts (MSA), 11787, 6th October, Egypt.
| | - Ahmed Samir
- Analytical Chemistry Department, Faculty of Pharmacy, October University for Modern Sciences and Arts (MSA), 11787, 6th October, Egypt
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Hassan SA, Nashat NW, Elghobashy MR, Abbas SS, Moustafa AA, Mahmoud AM. Novel microfabricated solid-contact potentiometric sensors doped with multiwall carbon-nanotubes for simultaneous determination of bisoprolol and perindopril in spiked human plasma. Microchem J 2022. [DOI: 10.1016/j.microc.2022.107323] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Alavi SE, Ebrahimi Shahmabadi H. Anthelmintics for drug repurposing: Opportunities and challenges. Saudi Pharm J 2021; 29:434-445. [PMID: 34135669 PMCID: PMC8180459 DOI: 10.1016/j.jsps.2021.04.004] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/19/2021] [Accepted: 04/03/2021] [Indexed: 12/14/2022] Open
Abstract
Drug repositioning is defined as a process to identify a new application for drugs. This approach is critical as it takes advantage of well-known pharmacokinetics, pharmacodynamics, and toxicity profiles of the drugs; thus, the chance of their future failure decreases, and the cost of their development and the required time for their approval are reduced. Anthelmintics, which are antiparasitic drugs, have recently demonstrated promising anticancer effects in vitro and in vivo. This literature review focuses on the potential of anthelmintics for repositioning in the treatment of cancers. It also discusses their pharmacokinetics and pharmacodynamics as antiparasitic drugs, proposed anticancer mechanisms, present development conditions, challenges in cancer therapy, and strategies to overcome these challenges.
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Affiliation(s)
- Seyed Ebrahim Alavi
- Department of Microbiology, School of Medicine, Rafsanjan University of Medical Sciences, Rafsanjan, Iran
| | - Hasan Ebrahimi Shahmabadi
- Department of Microbiology, School of Medicine, Rafsanjan University of Medical Sciences, Rafsanjan, Iran
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A microfabricated potentiometric sensor for metoclopramide determination utilizing a graphene nanocomposite transducer layer. Anal Bioanal Chem 2020; 412:7505-7514. [PMID: 32839859 DOI: 10.1007/s00216-020-02884-2] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2020] [Revised: 07/28/2020] [Accepted: 08/13/2020] [Indexed: 12/23/2022]
Abstract
In the recent drug analysis arena, optimizing a green, eco-friendly, and cost-effective technique is the main target. In order to cope with green analytical chemistry principles and the trending development of miniaturized portable and handheld devices, an innovative microfabricated ion-selective electrode for the analysis of metoclopramide (MTP) was developed. The fabricated electrode adopted a two-step optimization process. The first step of optimization depended on screening different ionophores in order to enhance the sensor selectivity. Calix-4-arene showed the maximal selectivity towards MTP. The second step was utilizing a graphene nanocomposite as an ion-to-electron transducer layer between the calix-4-arene polymeric membrane and the microfabricated copper solid-contact ion-selective electrode. The graphene nanocomposite layer added more stability to electrode potential drift and short response times (10 s), probably due to the hydrophobic behavior of the graphene nanocomposite, which precludes the formation of a water layer at the Cu electrode/polymeric membrane interface. The proposed MTP sensor has been characterized according to IUPAC recommendations and the linear dynamic range estimated to be 1 × 10-6 to 1 × 10-2 M with LOD of 3 × 10-7 M. The proposed sensor has been successfully employed in the selective determination of MTP in bulk powder, pharmaceutical formulation, and biological fluid. No statistical significant difference was observed upon comparing the results with those of the official method. The Eco-score of the method was assessed using the Eco-Scale tool and was compared with that of the official method. Graphical abstract.
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