1
|
Salman BI, Hassan AI, Saraya RE, Ibrahim AE, Mohammed BS, Batakoushy HA, Deeb SE, Hassan YF. Correction to: Development of cysteine‑doped MnO2 quantum dots for spectrofluorimetric estimation of copper: applications in different matrices. Anal Bioanal Chem 2024:10.1007/s00216-024-05291-z. [PMID: 38649518 DOI: 10.1007/s00216-024-05291-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/25/2024]
Affiliation(s)
- Baher I Salman
- Pharmaceutical Analytical Chemistry Department, Faculty of Pharmacy, Al-Azhar University, Assiut Branch, Assiut, 71524, Egypt
| | - Ahmed I Hassan
- Pharmaceutical Analytical Chemistry Department, Faculty of Pharmacy, Al-Azhar University, Assiut Branch, Assiut, 71524, Egypt
| | - Roshdy E Saraya
- Pharmaceutical Analytical Chemistry Department, Faculty of Pharmacy, Port Said University, Port Said, 42511, Egypt
| | - Adel Ehab Ibrahim
- Pharmaceutical Analytical Chemistry Department, Faculty of Pharmacy, Port Said University, Port Said, 42511, Egypt
- Natural and Medical Sciences Research Center, University of Nizwa, Birkat Al Mauz, P.O. Box 33, Nizwa, 616, Sultanate of Oman
| | - Bassam Shaaban Mohammed
- Department of Pharmaceutical Analytical Chemistry, Faculty of Pharmacy, Menoufia University, Shibin‑Elkom, 32511, Egypt
| | - Hany A Batakoushy
- Department of Pharmaceutical Analytical Chemistry, Faculty of Pharmacy, Menoufia University, Shibin‑Elkom, 32511, Egypt
| | - Sami El Deeb
- Natural and Medical Sciences Research Center, University of Nizwa, Birkat Al Mauz, P.O. Box 33, Nizwa, 616, Sultanate of Oman.
- Institute of Medicinal and Pharmaceutical Chemistry, Technische Universitaet Braunschweig, 38106, Braunschweig, Germany.
| | - Yasser F Hassan
- Pharmaceutical Analytical Chemistry Department, Faculty of Pharmacy, Al-Azhar University, Assiut Branch, Assiut, 71524, Egypt
| |
Collapse
|
2
|
Sivadasan D, Venkatesan K, Mohamed JMM, Alqahtani S, Asiri YI, Faisal MM, Ibrahim AE, Alrashdi YBA, Menaa F, Deeb SE. Application of 3 2 factorial design for loratadine-loaded nanosponge in topical gel formulation: comprehensive in-vitro and ex vivo evaluations. Sci Rep 2024; 14:6361. [PMID: 38493177 PMCID: PMC10944529 DOI: 10.1038/s41598-024-55953-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2024] [Accepted: 02/29/2024] [Indexed: 03/18/2024] Open
Abstract
Loratadine (LoR) is a highly lipophilic and practically insoluble in water, hence having a low oral bioavailability. As it is formulated as topical gel, it competitively binds with the receptors, thus reducing the side-effects. The objective of this study was to prepare LoR loaded nanosponge (LoR-NS) in gel for topical delivery. Nine different formulations of emulsion were prepared by solvent evaporation method with polyvinyl alcohol (PVA), ethyl cellulose (EC), and dichloromethane (DCM). Based on 32 Full Factorial Design (FFD), optimization was carried out by varying the concentration of LOR:EC ratio and stirring rate. The preparations were subjected for the evaluation of particle size (PS), in vitro release, zeta potential (ZP) and entrapment efficiency (EE). The results revealed that the NS dispersion was nanosized with sustained release profiles and significant PS. The optimised formulation was formulated and incorporated into carbopol 934P hydrogel. The formulation was then examined to surface morphological characterizations using scanning electron microscopy (SEM) which depicted spherical NS. Stability studies, undertaken for 2 months at 40 ± 2 °C/75 ± 5% RH, concluded to the stability of the formulation. The formulation did not cause skin irritation. Therefore, the prepared NS hydrogel proved to be a promising applicant for LoR as a novel drug delivery system (NDDS) for safe, sustained and controlled topical application.
Collapse
Affiliation(s)
- Durgaramani Sivadasan
- Department of Pharmaceutics, College of Pharmacy, Jizan University, Jizan, Saudi Arabia
| | - Krishnaraju Venkatesan
- Department of Pharmacology, College of Pharmacy, King Khalid University, Abha, Asir, Saudi Arabia
| | - Jamal Moideen Muthu Mohamed
- Faculty of Pharmacy & BioMedical Sciences, MAHSA University, Bandar Saujana Putra, 42610, Jenjarom, Selangor, Malaysia
| | - Saud Alqahtani
- Department of Pharmacology, College of Pharmacy, King Khalid University, Abha, Asir, Saudi Arabia
| | - Yahya I Asiri
- Department of Pharmacology, College of Pharmacy, King Khalid University, Abha, Asir, Saudi Arabia
| | - Mennatullah M Faisal
- Department of Pharmaceutics, Faculty of Pharmacy, Zagazig University, Zagazig, 44519, Egypt
| | - Adel Ehab Ibrahim
- Natural and Medical Sciences Research Center, University of Nizwa, Birkat Al Mauz, Nizwa, 616, Oman
| | | | - Farid Menaa
- Departments of Medicine and Nanomedicine, Fluorotronics, Inc, and California Innovations Corporation, San Diego, CA, 92037, USA.
| | - Sami El Deeb
- Institute of Medicinal and Pharmaceutical Chemistry, Technische Universitaet Braunschweig, Braunschweig, Germany.
| |
Collapse
|
3
|
El Deeb S, Abdelsamad K, Parr MK. Greener and Whiter Analytical Chemistry Using Cyrene as a More Sustainable and Eco-Friendlier Mobile Phase Constituent in Chromatography. Pharmaceuticals (Basel) 2023; 16:1488. [PMID: 37895959 PMCID: PMC10609853 DOI: 10.3390/ph16101488] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/28/2023] [Revised: 10/11/2023] [Accepted: 10/17/2023] [Indexed: 10/29/2023] Open
Abstract
Cyrene (dihydrolevoglucosenone) was evaluated for the first time as a potential sustainable mobile phase solvent in reversed-phase chromatography. As a benign biodegradable solvent, Cyrene is an attractive replacement to classical non-green organic chromatographic solvents such as acetonitrile and a modifier, co-eluent to known green solvents such as ethanol. Compared to ethanol, Cyrene is less toxic, non-flammable, biobased, biodegradable, and a cheaper solvent. A fire safety spider chart was generated to compare the properties of Cyrene to ethanol and show its superiority as a greener solvent. Cyrene's behavior, advantages, and drawbacks in reversed-phase chromatography, including the cut-off value of 350 nm, elution power, selectivity, and effect on the column, were investigated using a model drug mixture of moxifloxacin and metronidazole. A monolithic C18 (100 × 4.6 mm) column was used as a stationary phase. Different ratios of Cyrene: ethanol with an aqueous portion of sodium acetate buffer mobile phases were tested. A mobile phase consisting of Cyrene: ethanol: 0.1 M sodium acetate buffer pH 4.25 (8:13:79, v/v/v) was selected as the most suitable mobile phase system for separating and simultaneously determining metronidazole and moxifloxacin. The greenness and whiteness of the method were evaluated using the qualitative green assessment tool AGREE and the white analytical chemistry assessment tool RGB12. Further potentials of Cyrene as a solvent or modifier in normal phase chromatography, liquid chromatography-mass spectrometry, and supercritical fluid chromatography are discussed.
Collapse
Affiliation(s)
- Sami El Deeb
- Institute of Pharmacy, Freie Universität Berlin, Königin-Luise-Str. 2+4, 14195 Berlin, Germany; (K.A.); (M.K.P.)
- Institute of Medicinal and Pharmaceutical Chemistry, Technische Universitaet Braunschweig, 38106 Braunschweig, Germany
| | - Khalid Abdelsamad
- Institute of Pharmacy, Freie Universität Berlin, Königin-Luise-Str. 2+4, 14195 Berlin, Germany; (K.A.); (M.K.P.)
| | - Maria Kristina Parr
- Institute of Pharmacy, Freie Universität Berlin, Königin-Luise-Str. 2+4, 14195 Berlin, Germany; (K.A.); (M.K.P.)
| |
Collapse
|
4
|
Ibrahim AE, El Gohary NA, Aboushady D, Samir L, Karim SEA, Herz M, Salman BI, Al-Harrasi A, Hanafi R, El Deeb S. Recent advances in chiral selectors immobilization and chiral mobile phase additives in liquid chromatographic enantio-separations: A review. J Chromatogr A 2023; 1706:464214. [PMID: 37506464 DOI: 10.1016/j.chroma.2023.464214] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2023] [Revised: 07/10/2023] [Accepted: 07/11/2023] [Indexed: 07/30/2023]
Abstract
For decades now, the separation of chiral enantiomers of drugs has been gaining the interest and attention of researchers. In 1991, the first guidelines for development of chiral drugs were firstly released by the US-FDA. Since then, the development in chromatographic enantioseparation tools has been fast and variable, aiming at creating a suitable environment where the physically and chemically identical enantiomers can be separated. Among those tools, the immobilization of chiral selectors (CS) on different stationary phases and the chiral mobile phase additives (CMPA) which have been progressed and studied extensively. This review article highlights the major advances in immobilization of CS together with their different recognition mechanisms as well as CMPA as a cheaper and successful alternative for chiral stationary phases. Moreover, the role of molecular modeling tool as a pre-step in the choice of CS for evaluating possible interactions with different ligands has been pointed up. Illustrations of reported methods and updates for immobilized CS and CMPA have been included.
Collapse
Affiliation(s)
- Adel Ehab Ibrahim
- Pharmaceutical Analytical Chemistry Department, Faculty of Pharmacy, Port-Said University, Port-Said 42511, Egypt; Natural and Medical Sciences Research Center, University of Nizwa, P.O. Box 33, Birkat Al Mauz, Nizwa 616, Sultanate of Oman
| | - Nesrine Abdelrehim El Gohary
- Pharmaceutical Chemistry Department, Faculty of Pharmacy and Biotechnology, German University in Cairo, Cairo 11835, Egypt
| | - Dina Aboushady
- Pharmaceutical Chemistry Department, Faculty of Pharmacy and Biotechnology, German University in Cairo, Cairo 11835, Egypt
| | - Liza Samir
- Pharmaceutical Chemistry Department, Faculty of Pharmacy and Biotechnology, German University in Cairo, Cairo 11835, Egypt
| | - Shereen Ekram Abdel Karim
- Pharmaceutical Chemistry Department, Faculty of Pharmacy and Biotechnology, German University in Cairo, Cairo 11835, Egypt
| | - Magy Herz
- Pharmaceutical Chemistry Department, Faculty of Pharmacy and Biotechnology, German University in Cairo, Cairo 11835, Egypt
| | - Baher I Salman
- Pharmaceutical Analytical Chemistry Department, Faculty of Pharmacy, Al-Azhar University, Assiut Branch, Assiut, 71524, Egypt
| | - Ahmed Al-Harrasi
- Natural and Medical Sciences Research Center, University of Nizwa, P.O. Box 33, Birkat Al Mauz, Nizwa 616, Sultanate of Oman
| | - Rasha Hanafi
- Pharmaceutical Chemistry Department, Faculty of Pharmacy and Biotechnology, German University in Cairo, Cairo 11835, Egypt
| | - Sami El Deeb
- Institute of Medicinal and Pharmaceutical Chemistry, Technische Universität Braunschweig, Braunschweig 38092, Germany; Institute of Pharmacy, Freie Universität Berlin, Königin-Luise-Str. 2+4, 14195 Berlin, Germany.
| |
Collapse
|
5
|
Salman BI, Hassan AI, Saraya RE, Ibrahim AE, Mohammed BS, Batakoushy HA, El Deeb S, Hassan YF. Development of cysteine-doped MnO 2 quantum dots for spectrofluorimetric estimation of copper: applications in different matrices. Anal Bioanal Chem 2023; 415:5529-5538. [PMID: 37432444 PMCID: PMC10444647 DOI: 10.1007/s00216-023-04827-z] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2023] [Revised: 06/01/2023] [Accepted: 06/19/2023] [Indexed: 07/12/2023]
Abstract
Copper (Cu) plays a role in maintaining healthy nerve cells and the immune system. Osteoporosis is a high-risk factor for Cu deficiency. In the proposed research, unique green, fluorescent cysteine-doped MnO2 quantum dots (Cys@MnO2 QDs) were synthesized and assessed for the determination of Cu in different food and hair samples. The developed quantum dots were synthesized with the help of cysteine using a straightforward ultrasonic approach to create 3D fluorescent Cys@MnO2 QDs. The resulting QDs' morphological and optical characteristics were carefully characterized. By adding Cu ions, the intensity of fluorescence for the produced Cys@MnO2 QDs was found to be dramatically reduced. Additionally, the applicability of Cys@MnO2 QDs as a new luminous nanoprobe was found to be strengthened by the quenching effect grounded on the Cu-S bonding. The concentrations of Cu2+ ions were estimated within the range of 0.06 to 7.00 µg mL-1, with limit of quantitation equal to 33.33 ng mL-1 and detection limit equal to 10.97 ng mL-1. The Cys@MnO2 QD technique was applied successfully for the quantification of Cu in a variety of foods, including chicken meat, turkey, and tinned fish, as well as in human hair samples. The chance that this novel technique could be a useful tool for figuring out the amount of cysteine in bio-samples is increased by the sensing system's remarkable advantages, which include being rapid, simple, and economical.
Collapse
Affiliation(s)
- Baher I Salman
- Pharmaceutical Analytical Chemistry Department, Faculty of Pharmacy, Al-Azhar University, Assiut Branch, Assiut, 71524, Egypt
| | - Ahmed I Hassan
- Pharmaceutical Analytical Chemistry Department, Faculty of Pharmacy, Al-Azhar University, Assiut Branch, Assiut, 71524, Egypt
| | - Roshdy E Saraya
- Pharmaceutical Analytical Chemistry Department, Faculty of Pharmacy, Port Said University, Port Said, 42511, Egypt
| | - Adel Ehab Ibrahim
- Pharmaceutical Analytical Chemistry Department, Faculty of Pharmacy, Port Said University, Port Said, 42511, Egypt
- Natural and Medical Sciences Research Center, University of Nizwa, Birkat Al Mauz, P.O. Box 33, Nizwa, 616, Sultanate of Oman
| | - Bassam Shaaban Mohammed
- Department of Pharmaceutical Analytical Chemistry, Faculty of Pharmacy, Menoufia University, Shibin-Elkom, 32511, Egypt
| | - Hany A Batakoushy
- Department of Pharmaceutical Analytical Chemistry, Faculty of Pharmacy, Menoufia University, Shibin-Elkom, 32511, Egypt
| | - Sami El Deeb
- Natural and Medical Sciences Research Center, University of Nizwa, Birkat Al Mauz, P.O. Box 33, Nizwa, 616, Sultanate of Oman.
- Institute of Medicinal and Pharmaceutical Chemistry, Technische Universitaet Braunschweig, 38106, Braunschweig, Germany.
| | - Yasser F Hassan
- Pharmaceutical Analytical Chemistry Department, Faculty of Pharmacy, Al-Azhar University, Assiut Branch, Assiut, 71524, Egypt
| |
Collapse
|
6
|
Abdel-Megied AM, Kovalenko S, Elbarbry FA, Piponski M, Oleshchuk O, El Deeb S, Magdy G, Belal F, Grochovuy T, Logoyda L. LC-MS/MS bioanalytical method for the quantitative analysis of nifedipine, bisoprolol, and captopril in human plasma: Application to pharmacokinetic studies. Biomed Chromatogr 2023; 37:e5664. [PMID: 37114598 DOI: 10.1002/bmc.5664] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2022] [Revised: 04/10/2023] [Accepted: 04/23/2023] [Indexed: 04/29/2023]
Abstract
In this study, the development and validation of an accurate and highly sensitive LC-MS/MS method were performed for the estimation of nifedipine, bisoprolol and captopril in real human plasma. Liquid-liquid extraction using tert-butyl methyl ether was efficiently applied for extraction of the analytes from plasma samples. The chromatographic separation was carried out using an isocratic elution mode on the X-terra MS C18 column (4.6 × 50 mm, 3.5 μm). The mobile phase consisted of methanol-0.1% formic acid (95:5, v/v) for determination of nifedipine and bisoprolol and acetonitrile-0.1% formic acid (70:30, v/v) for determination of captopril with a flow rate of 0.5 ml/min. Acceptable results regarding the different validation characteristics of the analytes were obtained in accordance with US Food and Drug Administration recommendations for bioanalytical methods. The developed approach was linear over concentration ranges of 0.5-130.0, 50.0-4,500.0 and 0.3-30.0 ng/ml for nifedipine, captopril and bisoprolol, respectively. The method revealed a sufficient lower limit of quantification in the range of 0.3-50.0 ng/ml, as well as high recovery percentages, indicating high bioanalytical applicability. The proposed method was efficiently applied to a pharmacokinetic evaluation of a fixed-dose combination of the analytes in healthy male volunteers.
Collapse
Affiliation(s)
- Ahmed M Abdel-Megied
- Department of Pharmaceutical Sciences, Notre Dame of Maryland University, School of Pharmacy, Baltimore, Maryland, USA
- Pharmaceutical Analytical Chemistry Department, Faculty of Pharmacy, Kafrelsheikh University, Kafrelsheikh, Egypt
| | | | - Fawzy A Elbarbry
- School of Pharmacy, Pacific University Oregon, Hillsboro, Oregon, USA
| | - Marjan Piponski
- Quality Control Department, Replek Farm Ltd., Skopje, Republic of North Macedonia
| | - Oleksandra Oleshchuk
- Department of Pharmacology and Clinical Pharmacology, I. Horbachevsky Ternopil National Medical University, Ternopil, Ukraine
| | - Sami El Deeb
- Institute of Medicinal and Pharmaceutical Chemistry, Technische Universität Braunschweig, Braunschweig, Germany
| | - Galal Magdy
- Pharmaceutical Analytical Chemistry Department, Faculty of Pharmacy, Kafrelsheikh University, Kafrelsheikh, Egypt
| | - Fathalla Belal
- Pharmaceutical Analytical Chemistry Department, Faculty of Pharmacy, Mansoura University, Mansoura, Egypt
| | - Taras Grochovuy
- Department of Pharmacy Management, Economics and Technology, I. Horbachevsky Ternopil National Medical University, Ternopil, Ukraine
| | - Liliya Logoyda
- Department of Pharmaceutical Chemistry, I. Horbachevsky Ternopil National Medical University, Ternopil, Ukraine
| |
Collapse
|
7
|
Mahesh P, Haque MA, Salman BI, Belal TS, Ibrahim AE, El Deeb S. Fast and Sensitive Bioanalytical Method for the Determination of Deucravacitinib in Human Plasma Using HPLC-MS/MS: Application and Greenness Evaluation. Molecules 2023; 28:5471. [PMID: 37513344 PMCID: PMC10384560 DOI: 10.3390/molecules28145471] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/18/2023] [Revised: 07/12/2023] [Accepted: 07/13/2023] [Indexed: 07/30/2023] Open
Abstract
Plaque psoriasis is a common, long-lasting illness that affects the immune system and causes significant negative impacts on a patient's physical health, well-being, and ability to work effectively. Deucravacitinib (DEU) is the first oral medication used in the treatment of plaque psoriasis, a chronic skin condition that causes red, scaly patches on the skin. DEU is a type of medication called an oral Janus kinase (JAK) inhibitor, which works by blocking specific enzymes that play a role in the inflammation and immune response associated with psoriasis. Therefore, a quick, easy, novel, reliable, sensitive, and straightforward liquid chromatography-tandem mass spectrometry (LC-MS/MS) approach was used to analyze DEU in plasma samples. The LC-MS/MS method for the determination of DEU in human plasma was based on using trimethoprim as an internal standard (IS). The separation of DEU and IS was carried out via liquid-liquid extraction (LLE). The extract was then subjected to the chromatographic system separation using the ACE-C18 column (4.6 × 100 mm, 5 µm). The mobile phase employed consisted of methanol and a solution of 2 mM ammonium formate (80:20 v/v, respectively). The flow rate used was set at 0.9 mL min-1. The creative strategy was performed by running an ABSCIEX API 4000 mass spectrometer with an electron spray ionization source in multiple reaction monitoring (MRM) mode. The ion transitions m/z 426.3 → 358.2 were used for DEU quantitation, while the ion transitions m/z 291.1 → 261.1 were used for trimethoprim quantitation. The accuracy, precision, linearity, recovery, and selectivity of DEU were deemed acceptable when validated for a concentration range between 0.500 and 601.050 ng/mL, utilizing a weighting factor of 1/x2.
Collapse
Affiliation(s)
- Pottabattula Mahesh
- Department of Pharmaceutical Analysis, Anurag University, Venkatapur, Ghatkesar Rd., Hyderabad 500088, Telangana, India
| | - M Akiful Haque
- Department of Pharmaceutical Analysis, Anurag University, Venkatapur, Ghatkesar Rd., Hyderabad 500088, Telangana, India
| | - Baher I Salman
- Pharmaceutical Analytical Chemistry Department, Faculty of Pharmacy, Al-Azhar University, Assiut Branch, Assiut 71524, Egypt
| | - Tarek S Belal
- Pharmaceutical Analytical Chemistry Department, Faculty of Pharmacy, University of Alexandria, Alexandria 21521, Egypt
| | - Adel Ehab Ibrahim
- Pharmaceutical Analytical Chemistry Department, Faculty of Pharmacy, Port-Said University, Port-Said 42511, Egypt
- Natural and Medical Sciences Research Center, University of Nizwa, Birkat Al Mauz, Nizwa 616, Oman
| | - Sami El Deeb
- Institute of Medicinal and Pharmaceutical Chemistry, Technische Universitaet Braunschweig, Beethovenstr. 55, 38106 Braunschweig, Germany
- Institute of Pharmacy, Freie Universität Berlin, Queen-Luise-Strasse 2 and 4, 14195 Berlin, Germany
| |
Collapse
|
8
|
Asmari M, Michalcová L, Ibrahim AE, Glatz Z, Wätzig H, Deeb SE. Studying molecular interactions via capillary electrophoresis and microscale thermophoresis: A review. Electrophoresis 2023. [PMID: 37043774 DOI: 10.1002/elps.202200275] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2022] [Revised: 02/06/2023] [Accepted: 03/30/2023] [Indexed: 04/14/2023]
Abstract
The process of choosing the most proper technique for studying the molecular interactions is based on critical factors such as instrumentation complexity, automation, experimental procedures, analysis time, consumables, and cost-value. This review has tracked the use of affinity capillary electrophoresis (ACE) and microscale thermophoresis (MST) techniques in the evaluation of molecular binding between different molecules during the 5 years 2016-2021. ACE has proved to be an attractive technique for biomolecular characterization with high resolution efficiency where small variations in several controlling factors can much improve such efficiency compared to other analytical techniques. Meanwhile, MST has proved its higher sensitivity for smaller amounts of complex non-purified biosamples without affecting its robustness while providing high through output. However, the main motivation to review both techniques in the proposed review was their capability to carry out all experiments without the need for immobilizing one interacting partner, besides a great flexibility in the use of buffering systems The proposed review demonstrates the importance of both techniques in different areas of life sciences. Moreover, the recent advances in exploiting ACE and MST in other research interests have been discussed. This article is protected by copyright. All rights reserved.
Collapse
Affiliation(s)
- Mufarreh Asmari
- College of Pharmacy, King Khalid University, Abha, Saudi Arabia
| | - Lenka Michalcová
- Department of Biochemistry, Masaryk University, Brno, Czech Republic
| | - Adel Ehab Ibrahim
- PharmaceuticalAnalytical chemistry department, Faculty of Pharmacy, Port-Said University, Port Said, Egypt
- Natural and Medical Sciences Research Center, University of Nizwa, Nizwa 616, Sultanate of Oman
| | - Zdeněk Glatz
- Department of Biochemistry, Masaryk University, Brno, Czech Republic
| | - Hermann Wätzig
- Institute of Medicinal and Pharmaceutical Chemistry, TU Braunschweig, Braunschweig, Germany
| | - Sami El Deeb
- Natural and Medical Sciences Research Center, University of Nizwa, Nizwa 616, Sultanate of Oman
- Institute of Medicinal and Pharmaceutical Chemistry, TU Braunschweig, Braunschweig, Germany
| |
Collapse
|
9
|
Salman BI, Hara MA, El Deeb S, Ibrahim AE, Saraya RE, Ali MFB. Zinc(II) complexation strategy for ultra-sensitive fluorimetric estimation of molnupiravir: Applications and greenness evaluation. Arch Pharm (Weinheim) 2023:e2300005. [PMID: 37010439 DOI: 10.1002/ardp.202300005] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/06/2023] [Revised: 02/16/2023] [Accepted: 02/17/2023] [Indexed: 04/04/2023]
Abstract
The endemicity of the pandemic coronavirus disease 2019 (COVID-19) infection proved to be transitional only. Spikes are forming again in 2023, and high expectations are returning for reinfections and viral mutations. Molnupiravir (MOL) has been approved as an oral antiviral drug for the treatment of the COVID-19 causative virion. Therefore, the development of an ultrasensitive, instantaneous, and cost-effective method for the quantification of MOL in real plasma samples and formulated dosage form are mandatory. The proposed approach is based on the synthesis of a MOL metal-chelation product. MOL as a ligand was chelated with 1.0 mM zinc(II) in an acetate buffer (pH 5.3). After illumination at 340 nm, the intensity of the MOL fluorescence measured at 386 nm was increased by about 10-fold. The linearity range was found to be from 60.0 to 800.0 ng mL-1 with limit of quantitation (LOQ) of 28.6 ng mL-1 . Two methods were utilized for measuring the greenness of the proposed method (Green Analytical Procedure Index [GAPI] and analytical greenness metric [AGREE] methods), with results equal to 0.8. The binding stoichiometry of MOL with the zinc(II) ion was found to be 2:1. All the experimental parameters were optimized and validated using International Conference on Harmonization (ICH) and United States Food and Drug Administration (US-FDA) recommendations. Furthermore, the fluorescent probes were successfully utilized in real human plasma with high percentages of recovery (95.6%-97.1%) without any matrix interferences. The mechanism of fluorescent complex formation was confirmed using 1 H NMR in the presence and absence of Zn(II). The method was further utilized for testing content uniformity of MOL in its marketed capsule dosage forms.
Collapse
Affiliation(s)
- Baher I Salman
- Pharmaceutical Analytical Chemistry Department, Faculty of Pharmacy, Al-Azhar University, Assiut branch, Assiut, Egypt
| | - Mohammed A Hara
- Pharmaceutical Organic Chemistry Department, Faculty of Pharmacy, Al-Azhar University, Assiut branch, Assiut, Egypt
| | - Sami El Deeb
- Institute of Medicinal and Pharmaceutical Chemistry, Technische Universitaet Braunschweig, Braunschweig, Germany
- Natural and Medical Sciences Research Center, University of Nizwa, Nizwa, Sultanate of Oman
| | - Adel E Ibrahim
- Natural and Medical Sciences Research Center, University of Nizwa, Nizwa, Sultanate of Oman
- Pharmaceutical Analytical Chemistry Department, Faculty of Pharmacy, Port-Said University, Port Said, Egypt
| | - Roshdy E Saraya
- Pharmaceutical Analytical Chemistry Department, Faculty of Pharmacy, Port-Said University, Port Said, Egypt
| | - Marwa F B Ali
- Department of Pharmaceutical Analytical Chemistry, Faculty of Pharmacy, Assiut University, Assiut, Egypt
| |
Collapse
|
10
|
Al-Thani G, Ibrahim AE, Alomairi M, Salman BI, Hegazy MM, Al-Harrasi A, El Deeb S. Toxic Elemental Impurities in Herbal Weight Loss Supplements; A Study Using ICP-OES Microwave-Assisted Digestion. Toxics 2023; 11:272. [PMID: 36977037 PMCID: PMC10053313 DOI: 10.3390/toxics11030272] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/15/2023] [Revised: 03/08/2023] [Accepted: 03/15/2023] [Indexed: 06/18/2023]
Abstract
The tendency of using weight loss herbal preparations is continuously increasing, especially for the widespread consumption of junk food that is characterized by high calories. Weight loss herbal preparations are considered a type of food supplement product, and, as such, the regulations governing their quality control might be minimal. These products could be locally formulated in any country or internationally imported. Being non-controlled products, the herbal weight-loss products may contain high levels of elemental impurities that might exceed the permissible ranges. Moreover, these products contribute to the total daily intake (TDI) of such elements, which might represent concerns about their potential toxicological danger. In this research, the elemental contents in such products were investigated. The inductively coupled plasma with optical emission spectrometer (ICP-OES) was used to determine the levels of 15 elemental contents, namely, Na, K, Ca, Mg, Al, Cu, Fe, Li, Mn, As, Co, Cr, Cd, Ni and Pb. The results showed that seven micro-elements, namely Cd, Co, Ni, Cr, Pb, Li and Cu, were either not detectable or at a concentration much lower than their tolerable limits. However, all studied macro-elements (Na, K, Ca and Mg), together with Fe, were found at considerable, yet safe levels. On the other hand, Mn, Al and As contents showed perturbing levels in some of the studied products. Finally, a conclusion was highlighted for the necessity for stricter surveillance of such herbal products.
Collapse
Affiliation(s)
- Ghanim Al-Thani
- Natural and Medical Sciences Research Center, University of Nizwa, PC 616, Birkat Al Mauz, Nizwa P.O. Box 33, Oman
| | - Adel Ehab Ibrahim
- Natural and Medical Sciences Research Center, University of Nizwa, PC 616, Birkat Al Mauz, Nizwa P.O. Box 33, Oman
- Pharmaceutical Analytical Chemistry Department, Faculty of Pharmacy, Port-Said University, Port Said 42526, Egypt
| | - Mohammed Alomairi
- Natural and Medical Sciences Research Center, University of Nizwa, PC 616, Birkat Al Mauz, Nizwa P.O. Box 33, Oman
| | - Baher I. Salman
- Pharmaceutical Analytical Chemistry Department, Faculty of Pharmacy, Al-Azhar University, Assiut Branch, Assiut 71524, Egypt
| | - Mostafa M. Hegazy
- Department of Pharmacognosy and Medicinal Plants, Faculty of Pharmacy, Al-Azhar University, Cairo 11884, Egypt
| | - Ahmed Al-Harrasi
- Natural and Medical Sciences Research Center, University of Nizwa, PC 616, Birkat Al Mauz, Nizwa P.O. Box 33, Oman
| | - Sami El Deeb
- Natural and Medical Sciences Research Center, University of Nizwa, PC 616, Birkat Al Mauz, Nizwa P.O. Box 33, Oman
- Institute of Medicinal and Pharmaceutical Chemistry, Technische Universitaet Braunschweig, 38106 Braunschweig, Germany
| |
Collapse
|
11
|
Sharaf YA, Ibrahim AE, El Deeb S, Sayed RA. Green Chemometric Determination of Cefotaxime Sodium in the Presence of Its Degradation Impurities Using Different Multivariate Data Processing Tools; GAPI and AGREE Greenness Evaluation. Molecules 2023; 28:molecules28052187. [PMID: 36903432 PMCID: PMC10005094 DOI: 10.3390/molecules28052187] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2023] [Revised: 02/21/2023] [Accepted: 02/24/2023] [Indexed: 03/02/2023] Open
Abstract
Four eco-friendly, cost-effective, and fast stability-indicating UV-VIS spectrophotometric methods were validated for cefotaxime sodium (CFX) determination either in the presence of its acidic or alkaline degradation products. The applied methods used multivariate chemometry, namely, classical least square (CLS), principal component regression (PCR), partial least square (PLS), and genetic algorithm-partial least square (GA-PLS), to resolve the analytes' spectral overlap. The spectral zone for the studied mixtures was within the range from 220 to 320 nm at a 1 nm interval. The selected region showed severe overlap in the UV spectra of cefotaxime sodium and its acidic or alkaline degradation products. Seventeen mixtures were used for the models' construction, and eight were used as an external validation set. For the PLS and GA-PLS models, a number of latent factors were determined as a pre-step before the models' construction and found to be three for the (CFX/acidic degradants) mixture and two for the (CFX/alkaline degradants) mixture. For GA-PLS, spectral points were minimized to around 45% of the PLS models. The root mean square errors of prediction were found to be (0.19, 0.29, 0.47, and 0.20) for the (CFX/acidic degradants) mixture and (0.21, 0.21, 0.21, and 0.22) for the (CFX/alkaline degradants) mixture for CLS, PCR, PLS, and GA-PLS, respectively, indicating the excellent accuracy and precision of the developed models. The linear concentration range was studied within 12-20 μg mL-1 for CFX in both mixtures. The validity of the developed models was also judged using other different calculated tools such as root mean square error of cross validation, percentage recoveries, standard deviations, and correlation coefficients, which indicated excellent results. The developed methods were also applied to the determination of cefotaxime sodium in marketed vials, with satisfactory results. The results were statistically compared to the reported method, revealing no significant differences. Furthermore, the greenness profiles of the proposed methods were assessed using the GAPI and AGREE metrics.
Collapse
Affiliation(s)
- Yasmine Ahmed Sharaf
- Pharmaceutical Analytical Chemistry Department, Faculty of Pharmacy, Zagazig University, Zagazig 44511, Egypt
| | - Adel Ehab Ibrahim
- Natural and Medical Sciences Research Center, University of Nizwa, P.O. Box 33, Birkat Al Mauz, Nizwa 616, Oman
- Pharmaceutical analytical chemistry Department, Faculty of Pharmacy, Port-Said University, Port-Said 42526, Egypt
| | - Sami El Deeb
- Natural and Medical Sciences Research Center, University of Nizwa, P.O. Box 33, Birkat Al Mauz, Nizwa 616, Oman
- Institute of Medicinal and Pharmaceutical Chemistry, Technische Universitaet Braunschweig, 38106 Braunschweig, Germany
- Correspondence: ; Tel.: +49-531-391-7301
| | - Rania Adel Sayed
- Pharmaceutical Analytical Chemistry Department, Faculty of Pharmacy, Zagazig University, Zagazig 44511, Egypt
| |
Collapse
|
12
|
Ali MFB, Saraya RE, El Deeb S, Ibrahim AE, Salman BI. An Innovative Polymer-Based Electrochemical Sensor Encrusted with Tb Nanoparticles for the Detection of Favipiravir: A Potential Antiviral Drug for the Treatment of COVID-19. Biosensors (Basel) 2023; 13:243. [PMID: 36832009 PMCID: PMC9954130 DOI: 10.3390/bios13020243] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 12/27/2022] [Revised: 01/26/2023] [Accepted: 02/07/2023] [Indexed: 06/18/2023]
Abstract
An innovative polymer-based electro-sensor decorated with Tb nanoparticles has been developed for the first time. The fabricated sensor was utilized for trace determination of favipiravir (FAV), a recently US FDA-approved antiviral drug for the treatment of COVID-19. Different techniques, including ultraviolet-visible spectrophotometry (UV-VIS), cyclic voltammetry (CV), scanning electron microscope (SEM), X-ray Diffraction (XRD) and electrochemical impedance spectroscopy (EIS), were applied for the characterization of the developed electrode TbNPs@ poly m-THB/PGE. Various experimental variables, including pH, potential range, polymer concentration, number of cycles, scan rate and deposition time, were optimized. Moreover, different voltammetric parameters were examined and optimized. The presented SWV method showed linearity over the range of 10-150 × 10-9 M with a good correlation coefficient (R = 0.9994), and the detection limit (LOD) reached 3.1 × 10-9 M. The proposed method was applied for the quantification of FAV in tablet dosage forms and in human plasma without any interference from complex matrices, obtaining good % recovery results (98.58-101.93%).
Collapse
Affiliation(s)
- Marwa F. B. Ali
- Department of Pharmaceutical Analytical Chemistry, Faculty of Pharmacy, Assiut University, Assiut 71526, Egypt
| | - Roshdy E. Saraya
- Pharmaceutical Analytical Chemistry Department, Faculty of Pharmacy, Port-Said University, Port Said 42526, Egypt
| | - Sami El Deeb
- Institute of Medicinal and Pharmaceutical Chemistry, Teschnische Universität Braunschweig, 38106 Braunschweig, Germany
- Natural and Medical Sciences Research Center, University of Nizwa, Birkat Al Mauz, P.O. Box 33, Nizwa 616, Oman
| | - Adel Ehab Ibrahim
- Pharmaceutical Analytical Chemistry Department, Faculty of Pharmacy, Port-Said University, Port Said 42526, Egypt
- Natural and Medical Sciences Research Center, University of Nizwa, Birkat Al Mauz, P.O. Box 33, Nizwa 616, Oman
| | - Baher I. Salman
- Pharmaceutical Analytical Chemistry Department, Faculty of Pharmacy, Al-Azhar University, Assiut Branch, Assiut 71524, Egypt
| |
Collapse
|
13
|
Ibrahim AE, Abd Elmonem HM, Al-Harrasi A, El Deeb S. Comparative Evaluation of Reversed Stationary Phase Geometries and Greener Systems on HPLC and UHPLC Using Five Recent Hepatitis-C Antivirals. J AOAC Int 2023; 106:580-587. [PMID: 36715617 DOI: 10.1093/jaoacint/qsad008] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2022] [Revised: 12/25/2022] [Accepted: 12/29/2022] [Indexed: 01/31/2023]
Abstract
BACKGROUND Being the most widely used LC mode, reversed phase RP-HPLC accounts for the highest percentage of HPLC separations. The main aim of the green analytical chromatographers is to enhance efficiency of separations done in short analysis time, using the ecologically safest materials and lowest energy consumption. OBJECTIVE Being the heart of any chromatography where the actual separations take place, LC columns had diverse varieties in their developments which involve the change in stationary phase geometries as well as particles size. The rational about column's choice is quite complicated. Totally porous, core-shell particles, and monolithic rods are stationary phase types manufactured in RP-mode. The selection of HPLC or UHPLC instrumentation is another crucial choice. METHODS In this research article, three different column packing phases were evaluated and compared on both HPLC and UHPLC techniques. The purpose was to explore the best rational choice of column packing as well as LC instrumentation, when using greener chromatographic conditions. RESULTS AND CONCLUSION The study showed a superiority of core-shell particles in both HPLC and UHPLC techniques. Moreover, this RP-morphology enabled the utilization of greener mobile phase compositions. Monolithic columns showed better accommodation of greener mobile phases' flow rates, without considerable loss of performance. HIGHLIGHTS The use of greener organic solvents was assessed on different stationary phase geometries. The separation efficiency for five recent antiviral drugs was evaluated for better understanding of column choice versus experimental conditions. UHPLC and HPLC were compared comprehensively at the level of applicability and cost-effectiveness.
Collapse
Affiliation(s)
- Adel Ehab Ibrahim
- Pharmaceutical analytical chemistry department, Faculty of Pharmacy, Port-Said University, Egypt.,Natural and Medical Sciences Research Center, University of Nizwa, P.O. Box 33, Birkat Al Mauz, Nizwa 616, Sultanate of Oman
| | | | - Ahmed Al-Harrasi
- Natural and Medical Sciences Research Center, University of Nizwa, P.O. Box 33, Birkat Al Mauz, Nizwa 616, Sultanate of Oman
| | - Sami El Deeb
- Institute of Medicinal and Pharmaceutical Chemistry, Technische Universitaet Braunschweig, Germany.,Natural and Medical Sciences Research Center, University of Nizwa, P.O. Box 33, Birkat Al Mauz, Nizwa 616, Sultanate of Oman
| |
Collapse
|
14
|
Hegazy MM, Afifi WM, Metwaly AM, Radwan MM, Abd-Elraouf M, Mehany ABM, Ahmed E, Enany S, Ezzeldin S, Ibrahim AE, El Deeb S, Mostafa AE. Antitrypanosomal, Antitopoisomerase-I, and Cytotoxic Biological Evaluation of Some African Plants Belonging to Crassulaceae; Chemical Profiling of Extract Using UHPLC/QTOF-MS/MS. Molecules 2022; 27:molecules27248809. [PMID: 36557948 PMCID: PMC9785725 DOI: 10.3390/molecules27248809] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 09/23/2022] [Revised: 12/05/2022] [Accepted: 12/06/2022] [Indexed: 12/15/2022]
Abstract
In our continuous study for some African plants as a source for antitrypanosomally and cytotoxic active drugs, nine different plants belonging to the Crassulaceae family have been selected for the present study. Sedum sieboldii leaves extract showed an antitrypanosomal activity against Trypanosoma brucei with an IC50 value of 8.5 µg/mL. In addition, they have cytotoxic activities against (HCT-116), (HEPG-2) and (MCF-7), with IC50 values of 28.18 ± 0.24, 22.05 ± 0.66, and 26.47 ± 0.85 µg/mL, respectively. Furthermore, the extract displayed inhibition against Topoisomerase-1 with an IC50 value of 1.31 µg/mL. It showed the highest phenolics and flavonoids content among the other plants' extracts. In order to identify the secondary metabolites which may be responsible for such activities, profiling of the polar secondary metabolites of S. sieboldii extract via Ultra-Performance Liquid Chromatography coupled to High-Resolution QTOF-MS operated in negative and positive ionization modes, which revealed the presence of 46 metabolites, including flavonoids, phenolic acids, anthocyanidins, coumarin, and other metabolites.
Collapse
Affiliation(s)
- Mostafa M. Hegazy
- Department of Pharmacognosy and Medicinal Plants, Faculty of Pharmacy, Al-Azhar University, Cairo 11884, Egypt
| | - Wael M. Afifi
- Department of Pharmacognosy and Medicinal Plants, Faculty of Pharmacy, Al-Azhar University, Cairo 11884, Egypt
- Department of Pharmacognosy, Faculty of Pharmacy, Sinai University—Kantara Branch, Ismailia 41636, Egypt
| | - Ahmed M. Metwaly
- Department of Pharmacognosy and Medicinal Plants, Faculty of Pharmacy, Al-Azhar University, Cairo 11884, Egypt
| | - Mohamed M. Radwan
- National Center for Natural Products Research, University of Mississippi, University, MS 38677, USA
- Department of Pharmacognosy, Faculty of Pharmacy, University of Alexandria, Alexandria 21521, Egypt
| | - Muhamad Abd-Elraouf
- Department of Pharmacognosy and Medicinal Plants, Faculty of Pharmacy, Al-Azhar University, Cairo 11884, Egypt
| | - Ahmed B. M. Mehany
- Zoology Department, Faculty of Science, Al-Azhar University, Cairo 11884, Egypt
| | - Eman Ahmed
- Department of Pharmacology, Faculty of Veterinary Medicine, Suez Canal University, Ismailia 41522, Egypt
- Proteomics and Metabolomics Research Program, Department of Basic Research, Children’s Cancer Hospital 57357, Cairo 11441, Egypt
| | - Shymaa Enany
- Department of Microbiology and Immunology, Faculty of Pharmacy, Suez Canal University, Ismailia 41522, Egypt
| | - Shahd Ezzeldin
- Department of Pharmacology, Faculty of Veterinary Medicine, Suez Canal University, Ismailia 41522, Egypt
| | - Adel E. Ibrahim
- Natural and Medical Sciences Research Center, University of Nizwa, Birkat Al Mauz, P.O. Box 33, Nizwa 616, Oman
- Pharmaceutical Analytical Chemistry Department, Faculty of Pharmacy, Port-Said University, Port-Said 42511, Egypt
| | - Sami El Deeb
- Natural and Medical Sciences Research Center, University of Nizwa, Birkat Al Mauz, P.O. Box 33, Nizwa 616, Oman
- Institute of Medicinal and Pharmaceutical Chemistry, Technische Universitaet Braunschweig, 38106 Braunschweig, Germany
- Correspondence:
| | - Ahmad E. Mostafa
- Department of Pharmacognosy and Medicinal Plants, Faculty of Pharmacy, Al-Azhar University, Cairo 11884, Egypt
| |
Collapse
|
15
|
Hafez HM, El Deeb S, Mahmoud Swaif M, Ismail Ibrahim R, Ali Kamil R, Salman Abdelwahed A, Ehab Ibrahim A. Micellar Organic-solvent Free HPLC Design of Experiment for the Determination of Ertapenem and Meropenem; Assessment using GAPI, AGREE and Analytical Eco-scale models. Microchem J 2022. [DOI: 10.1016/j.microc.2022.108262] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/03/2022]
|
16
|
El-Hela AA, Hegazy MM, Abbass HS, Ahmed AH, Bakr MSA, Elkousy RH, Ibrahim AE, El Deeb S, Sayed OM, Gad ES. Dinebra retroflexa Herbal Phytotherapy: A Simulation Study Based on Bleomycin-Induced Pulmonary Fibrosis Retraction Potential in Swiss Albino Rats. Medicina (Kaunas) 2022; 58:1719. [PMID: 36556921 PMCID: PMC9782064 DOI: 10.3390/medicina58121719] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 10/23/2022] [Revised: 11/20/2022] [Accepted: 11/21/2022] [Indexed: 11/25/2022]
Abstract
Background and Objectives: Fibrotic lung disease is one of the main complications of many medical conditions. Therefore, the use of anti-fibrotic agents may provide a chance to prevent, or at least modify, such complication. The aim of this study was to evaluate the protective pulmonary anti-fibrotic and anti-inflammatory effects of Dinebra retroflexa. Materials and methods: Dinebra retroflexa methanolic extract and its synthesized silver nanoparticles were tested on bleomycin-induced pulmonary fibrosis. Pulmonary fibrosis was induced by intratracheal instillation of bleomycin (5 mg/5 mL/kg-Saline) as a supposed model for induced lung fibrosis. The weed evaluation was performed by intratracheal instillation of Dinebra retroflexa methanolic extract and its silver nanoparticles (35 mg/100 mL/kg-DMSO, single dose). Results: The results showed that both Dinebra retroflexa methanolic extract and its silver nanoparticles had a significant pulmonary fibrosis retraction potential, with Ashcroft scores of three and one, respectively, and degrees of collagen deposition reduction of 33.8 and 46.1%, respectively. High-resolution UHPLC/Q-TOF-MS/MS metabolic profiling and colorimetrically polyphenolic quantification were performed for further confirmation and explanation of the represented effects. Such activity was believed to be due to the tentative identification of twenty-seven flavonoids and one phenolic acid along with a phenolic content of 57.8 mg/gm (gallic acid equivalent) and flavonoid content of 22.5 mg/gm (quercetin equivalent). Conclusion: Dinebra retroflexa may be considered as a promising anti-fibrotic agent for people at high risk of complicated lung fibrosis. The results proved that further clinical trials would be recommended to confirm the proposed findings.
Collapse
Affiliation(s)
- Atef A. El-Hela
- Department of Pharmacognosy and Medicinal Plants, Faculty of Pharmacy, Al-Azhar University (Boys), Cairo 11884, Egypt
| | - Mostafa M. Hegazy
- Department of Pharmacognosy and Medicinal Plants, Faculty of Pharmacy, Al-Azhar University (Boys), Cairo 11884, Egypt
| | - Hatem S. Abbass
- Department of Pharmacognosy and Medicinal Plants, Faculty of Pharmacy, Al-Azhar University (Boys), Cairo 11884, Egypt
- Department of Pharmacognosy, Faculty of Pharmacy, Sinai University—Kantara Branch, Ismailia 41636, Egypt
| | - Amal H. Ahmed
- Department of Pharmacognosy and Medicinal Plants, Faculty of Pharmacy, Al-Azhar University (Girls), Cairo 11884, Egypt
| | - Marwa S. Abu Bakr
- Department of Pharmacognosy and Medicinal Plants, Faculty of Pharmacy, Al-Azhar University (Girls), Cairo 11884, Egypt
| | - Rawah H. Elkousy
- Department of Pharmacognosy and Medicinal Plants, Faculty of Pharmacy, Al-Azhar University (Girls), Cairo 11884, Egypt
| | - Adel Ehab Ibrahim
- Natural and Medical Sciences Research Center, University of Nizwa, Birkat Al Mauz, P.O. Box 33, Nizwa 616, Oman
- Department of Pharmaceutical Analytical Chemistry, Faculty of Pharmacy, Port-Said University, Port-Said 42511, Egypt
| | - Sami El Deeb
- Natural and Medical Sciences Research Center, University of Nizwa, Birkat Al Mauz, P.O. Box 33, Nizwa 616, Oman
- Institute of Medicinal and Pharmaceutical Chemistry, Technische Universitaet Braunschweig, 38092 Braunschweig, Germany
| | - Ossama M. Sayed
- Department of Pharmaceutics, Faculty of Pharmacy, Sinai University—Kantara Branch, Ismailia 41636, Egypt
| | - Enas S. Gad
- Department of Pharmaceutical Sciences, King Faisal University, Al-Hofuf 13890, Saudi Arabia
- Department of Pharmacology and Toxicology, Faculty of Pharmacy, Sinai University—Kantara Branch, Ismailia 41636, Egypt
| |
Collapse
|
17
|
Samir L, Hanafi R, El Deeb S, Spahn-Langguth H. UHPLC Enantiomer Resolution for the ɑ/β-Adrenoceptor Antagonist R/S-Carvedilol and Its Major Active Metabolites on Chiralpak IB N-5. Molecules 2022; 27:molecules27154998. [PMID: 35956942 PMCID: PMC9370150 DOI: 10.3390/molecules27154998] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/30/2022] [Revised: 07/22/2022] [Accepted: 07/26/2022] [Indexed: 11/16/2022]
Abstract
Carvedilol (CAR), a racemic lipophilic aryloxy propanolamine, acts as a selective α1-adrenoreceptor antagonist and a nonselective β-adrenoreceptor antagonist. CAR metabolism mainly produces three active metabolites: desmethyl carvedilol (DMC), 4'-hydroxy carvedilol (4'OHC) and 5'-hydroxy carvedilol (5'OHC). The oxidative S-(-)-metabolites contribute to the β-antagonistic effect, yet not to the α-antagonistic effect to be observed after drug dosage. Therefore, the three β-adrenoceptor blocking metabolites, which are structurally closely related to the parent CAR, are included into the development of a bioanalytical quantitative method for all major active species relevant with respect to adrenoceptor-blockade. Because of the given pharmacological profile, resolution of the enantiomers of carvedilol, of 4'- and 5'-hydroxy carvedilol as well as of DMC, is mandatory. The current study aims to determine the response surface for the enantiomer separation of the parent CAR as well as the major metabolites on a suitable chiral stationary phase. Design of experiment approach (DoE) was utilized in an initial screening phase followed by central-composite design for delimitation of the response surface for resolution of the four enantiomeric pairs in least run time. The impact of chromatographic variables (composition and percentage of organic modifier(s), buffer type, buffer pH, flow rate) on critical peaks resolution and adjusted retention time was evaluated, in order to select the most significant critical quality attributes. On this basis, a robust UHPLC-UV method was developed and optimized for the simultaneous, enantioselective determination of CAR along with its major active metabolites (4'OHC, 5'OHC, and DMC) on Chiralpak IBN-5. The optimized UHPLC-UV method (which includes metoprolol as the internal standard) was validated according to the ICH M10 guidelines for bioanalytical methods and proven to be linear, precise, accurate, and robust. The validated assay was applied to plasma samples from cardiovascular patients treated with rac-CAR (blood randomly drawn at different times after oral CAR intake). In order to provide more insight into the mechanism of the enantiomer separation of CAR and its metabolites on the CSP, docking experiments were performed. Molecular simulation studies suggest the chiral recognition to be mainly due to different binding poses of enantiomers of the same compound.
Collapse
Affiliation(s)
- Liza Samir
- Pharmaceutical Chemistry Department, Faculty of Pharmacy and Biotechnology, German University in Cairo, Cairo 11865, Egypt
| | - Rasha Hanafi
- Pharmaceutical Chemistry Department, Faculty of Pharmacy and Biotechnology, German University in Cairo, Cairo 11865, Egypt
- Correspondence: (R.H.); (S.E.D.)
| | - Sami El Deeb
- Institute of Medicinal and Pharmaceutical Chemistry, Technische Universität Braunschweig, 38106 Braunschweig, Germany
- Natural and Medical Sciences Research Center, University of Nizwa, P.O. Box 33, Birkat Al Mauz, Nizwa 616, Sultanate of Oman
- Correspondence: (R.H.); (S.E.D.)
| | - Hilde Spahn-Langguth
- Institute of Pharmacy and Biochemistry-Therapeutic Life Sciences, Johannes Gutenberg-University Mainz, 55128 Mainz, Germany
| |
Collapse
|
18
|
El Deeb S, Al-Harrasi A, Khan A, Al-Broumi M, Al-Thani G, Alomairi M, Elumalai P, Sayed RA, Ibrahim AE. Microscale thermophoresis as a powerful growing analytical technique for the investigation of biomolecular interaction and the determination of binding parameters. Methods Appl Fluoresc 2022; 10. [PMID: 35856854 DOI: 10.1088/2050-6120/ac82a6] [Citation(s) in RCA: 16] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2022] [Accepted: 07/20/2022] [Indexed: 11/12/2022]
Abstract
The in vitro panel of technologies to address biomolecular interactions are in play, however microscale thermophoresis is continuously increasing in use to represent a key player in this arena. This review highlights the usefulness of microscale thermophoresis in the determination of molecular and biomolecular affinity interactions. This work reviews the literature from January 2016 to January 2022 about microscale thermophoresis. It gives a summarized overview about both the state-of the art and the development in the field of microscale thermophoresis. The principle of microscale thermophoresis is also described supported with self-created illustrations. Moreover, some recent advances are mentioned that showing application of the technique in investigating biomolecular interactions in different fields. Finally, advantages as well as drawbacks of the technique in comparison with other competing techniques are summarized.
Collapse
Affiliation(s)
- Sami El Deeb
- Technische Universitat Braunschweig, Braunschweig, Braunschweig, Niedersachsen, 38106, GERMANY
| | | | - Ajmal Khan
- University of Nizwa, Nizwa, Nizwa, 616, OMAN
| | | | | | | | | | - Rania A Sayed
- Pharmaceutical analytical chemistry department, Zagazig University, Zagazig, Zagazig, 44519, EGYPT
| | - Adel Ehab Ibrahim
- Pharmaceutical Analytical Chemistry, Port Said University, Port Said, Port Said, 42526, EGYPT
| |
Collapse
|
19
|
Asmari M, Waqas M, Ibrahim AE, Halim SA, Khan A, Al-Harrasi A, Wätzig H, El Deeb S. Microscale Thermophoresis and Molecular Modelling to Explore the Chelating Drug Transportation in the Milk to Infant. Molecules 2022; 27:molecules27144604. [PMID: 35889479 PMCID: PMC9319837 DOI: 10.3390/molecules27144604] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/09/2022] [Revised: 06/30/2022] [Accepted: 07/09/2022] [Indexed: 02/01/2023] Open
Abstract
The microscale thermophoresis (MST) technique was utilized to investigate lactoferrin–drug interaction with the iron chelator, deferiprone, using label-free system. MST depends on the intrinsic fluorescence of one interacting partner. The results indicated a significant interaction between lactoferrin and deferiprone. The estimated binding constant for the lactoferrin–deferiprone interaction was 8.9 × 10−6 ± 1.6, SD, which is to be reported for the first time. Such significant binding between lactoferrin and deferiprone may indicate the potentiation of the drug secretion into a lactating mother’s milk. The technique showed a fast and simple approach to study protein–drug interaction while avoiding complicated labeling procedures. Moreover, the binding behavior of deferiprone within the binding sites of lactoferrin was investigated through molecular docking which reflected that deferiprone mediates strong hydrogen bonding with ARG121 and ASP297 in pocket 1 and forms H-bond and ionic interaction with ASN640 and ASP395, respectively, in pocket 2 of lactoferrin. Meanwhile, iron ions provide ionic interaction with deferiprone in both of the pockets. The molecular dynamic simulation further confirmed that the binding of deferiprone with lactoferrin brings conformational changes in lactoferrin that is more energetically stable. It also confirmed that deferiprone causes positive correlation motion in the interacting residues of both pockets, with strong negative correlation motion in the loop regions, and thus changes the dynamics of lactoferrin. The MM-GBSA based binding free energy calculation revealed that deferiprone exhibits ∆G TOTAL of −63,163 kcal/mol in pocket 1 and −63,073 kcal/mol in pocket 2 with complex receptor–ligand difference in pocket 1 and pocket 2 of −117.38 kcal/mol and −111.54 kcal/mol, respectively, which in turn suggests that deferiprone binds more strongly in the pocket 1. The free energy landscape of the lactoferrin–deferiprone complex also showed that this complex remains in a high energy state that confirms the strong binding of deferiprone with the lactoferrin. The current research concluded that iron-chelating drugs (deferiprone) can be transported from the mother to the infant in the milk because of the strong attachment with the lactoferrin active pockets.
Collapse
Affiliation(s)
- Mufarreh Asmari
- College of Pharmacy, King Khalid University, Abha 62529, Saudi Arabia;
| | - Muhammad Waqas
- Natural and Medical Sciences Research Center, University of Nizwa, P.O. Box 33, Birkat Al Mauz, Nizwa 616, Oman; (M.W.); (A.E.I.); (S.A.H.); (A.K.); (A.A.-H.)
| | - Adel Ehab Ibrahim
- Natural and Medical Sciences Research Center, University of Nizwa, P.O. Box 33, Birkat Al Mauz, Nizwa 616, Oman; (M.W.); (A.E.I.); (S.A.H.); (A.K.); (A.A.-H.)
- Analytical Chemistry Department, Faculty of Pharmacy, Port-Said University, Port Fouad 42526, Egypt
| | - Sobia Ahsan Halim
- Natural and Medical Sciences Research Center, University of Nizwa, P.O. Box 33, Birkat Al Mauz, Nizwa 616, Oman; (M.W.); (A.E.I.); (S.A.H.); (A.K.); (A.A.-H.)
| | - Ajmal Khan
- Natural and Medical Sciences Research Center, University of Nizwa, P.O. Box 33, Birkat Al Mauz, Nizwa 616, Oman; (M.W.); (A.E.I.); (S.A.H.); (A.K.); (A.A.-H.)
| | - Ahmed Al-Harrasi
- Natural and Medical Sciences Research Center, University of Nizwa, P.O. Box 33, Birkat Al Mauz, Nizwa 616, Oman; (M.W.); (A.E.I.); (S.A.H.); (A.K.); (A.A.-H.)
| | - Hermann Wätzig
- Institute of Medicinal and Pharmaceutical Chemistry, Technische Universität Braunschweig, 38106 Braunschweig, Germany;
| | - Sami El Deeb
- Natural and Medical Sciences Research Center, University of Nizwa, P.O. Box 33, Birkat Al Mauz, Nizwa 616, Oman; (M.W.); (A.E.I.); (S.A.H.); (A.K.); (A.A.-H.)
- Institute of Medicinal and Pharmaceutical Chemistry, Technische Universität Braunschweig, 38106 Braunschweig, Germany;
- Correspondence:
| |
Collapse
|
20
|
Salman BI, Ibrahim AE, El Deeb S, Saraya RE. Fabrication of novel quantum dots for the estimation of COVID-19 antiviral drug using green chemistry: application to real human plasma. RSC Adv 2022; 12:16624-16631. [PMID: 35754906 PMCID: PMC9169903 DOI: 10.1039/d2ra02241a] [Citation(s) in RCA: 12] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/06/2022] [Accepted: 05/27/2022] [Indexed: 11/21/2022] Open
Abstract
The COVID-19 pandemic has encouraged the search for novel antiviral medications. Recently, molnupiravir (MOL) has been approved as an oral antiviral to manage COVID-19. Thus, the development of sensitive and cost-effective methods for quantification of MOL in real plasma samples (pharmacokinetic) and pharmaceutical tablets is required. Herein, we present the fabrication of novel fluorescent polyamine quantum dots (PA@CQDs) fabricated from apricots using one step synthesis for analysis of MOL. The relative fluorescence intensity (RFI) of the synthesized quantum dots was influentially quenched by the addition of molnupiraivr. The linear range was found to be between 2-70 ng mL-1 with lower limit of quantitation (LOQ) equal to 1.61 ng mL-1. The fluorescent probe was successfully utilized in a pharmacokinetic study of MOL with maximum plasma concentration (C max) 920.2 ± 6.12 ng mL-1 without any matrix interference. The sensitivity and selectivity of the presented method allow its application in clinical laboratories.
Collapse
Affiliation(s)
- Baher I Salman
- Pharmaceutical Analytical Chemistry Department, Faculty of Pharmacy, Al-Azhar University Assiut Branch Assiut 71524 Egypt +201099031345
| | - Adel Ehab Ibrahim
- Natural and Medical Sciences Research Center, University of Nizwa Birket Almawz P. O. box 33 Oman
- Department of Pharmaceutical Analytical Chemistry, Faculty of Pharmacy, Port Said University Port Said 42511 Egypt
| | - Sami El Deeb
- Natural and Medical Sciences Research Center, University of Nizwa Birket Almawz P. O. box 33 Oman
- Institute of Medicinal and Pharmaceutical Chemistry, Technische Universitaet Braunschweig 38106 12 Braunschweig Germany
| | - Roshdy E Saraya
- Department of Pharmaceutical Analytical Chemistry, Faculty of Pharmacy, Port Said University Port Said 42511 Egypt
| |
Collapse
|
21
|
Saraya RE, Deeb SE, Salman BI, Ibrahim AE. Highly sensitive high-performance thin-layer chromatography method for the simultaneous determination of Molnupiravir, Favipiravir, and Ritonavir in pure forms and pharmaceutical formulations. J Sep Sci 2022; 45:2582-2590. [PMID: 35583051 DOI: 10.1002/jssc.202200178] [Citation(s) in RCA: 21] [Impact Index Per Article: 10.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2022] [Revised: 05/08/2022] [Accepted: 05/15/2022] [Indexed: 11/06/2022]
Abstract
Favipiravir, molnupiravir, and ritonavir have been recently approved as the first oral antivirals for treatment of SARS-CoV-2 viral infections. Their combination was reported in several clinical studies, alternatively, to enhance the viral eradication and improve patient's recovery times and rates. Being all orally administered, therefore, developing new sensitive and validated methodologies for their simultaneous determination is a necessitate. In the proposed research, a sensitive, selective and simple high-performance thin layer chromatography method was developed and validated for determination of favipiravir, molnupiravir, and ritonavir. Silica gel 60F254 thin layer chromatography plates were used as stationary phase for this separation using mobile phase composed of methylene chloride: ethyl acetate: methanol: 25% ammonia (6:3:4:1, v/v/v/v). Densitometric detection was performed at wavelength 289nm. Peaks of favipiravir, molnupiravir, and ritonavir were resolved at retention factors 0.22, 0.42 and 0.63, respectively. The proposed method was found linear within the specified ranges of 3.75-100.00 μg/mL for molnupiravir and favipiravir, and 2.75-100.00 μg/mL for ritonavir. Limits of detection were found to be 1.12, 1.21, and 0.89 μg/mL for favipiravir, molnupiravir, and ritonavir, respectively. This is the first method to be reported for the simultaneous determination of the cited three antiviral drugs. The method was assessed on novel greenness metrics. This article is protected by copyright. All rights reserved.
Collapse
Affiliation(s)
- Roshdy E Saraya
- Pharmaceutical analytical chemistry department, Faculty of Pharmacy, Port-Said University, Port-Said, Egypt
| | - Sami El Deeb
- Institute of Medicinal and Pharmaceutical Chemistry, Technische Universitaet Braunschweig, 38106, Braunschweig, Germany.,Natural and Medical Sciences Research Center, University of Nizwa, P.O. Box 33, Birkat Al Mauz, Nizwa, 616, Sultanate of Oman
| | - Baher I Salman
- Pharmaceutical Analytical Chemistry Department, Faculty of Pharmacy, Al-Azhar University, Assiut branch, Assiut, 71524, Egypt
| | - Adel Ehab Ibrahim
- Pharmaceutical analytical chemistry department, Faculty of Pharmacy, Port-Said University, Port-Said, Egypt.,Natural and Medical Sciences Research Center, University of Nizwa, P.O. Box 33, Birkat Al Mauz, Nizwa, 616, Sultanate of Oman
| |
Collapse
|
22
|
Sharaf YA, El Deeb S, Ibrahim AE, Al-Harrasi A, Sayed RA. Two Green Micellar HPLC and Mathematically Assisted UV Spectroscopic Methods for the Simultaneous Determination of Molnupiravir and Favipiravir as a Novel Combined COVID-19 Antiviral Regimen. Molecules 2022; 27:2330. [PMID: 35408729 PMCID: PMC9000667 DOI: 10.3390/molecules27072330] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/08/2022] [Revised: 04/01/2022] [Accepted: 04/01/2022] [Indexed: 12/17/2022] Open
Abstract
Following the spread of the COVID-19 pandemic crisis, a race was initiated to find a successful regimen for postinfections. Among those trials, a recent study declared the efficacy of an antiviral combination of favipiravir (FAV) and molnupiravir (MLP). The combined regimen helped in a successful 60% eradication of the SARS-CoV-2 virus from the lungs of studied hamster models. Moreover, it prevented viral transmission to cohosted sentinels. Because both medications are orally bioavailable, the coformulation of FAV and MLP can be predicted. The developed study is aimed at developing new green and simple methods for the simultaneous determination of FAV and MLP and then at their application in the study of their dissolution behavior if coformulated together. A green micellar HPLC method was validated using an RP-C18 core-shell column (5 μm, 150 × 4.6 mm) and an isocratic mixed micellar mobile phase composed of 0.1 M SDS, 0.01 M Brij-35, and 0.02 M monobasic potassium phosphate mixture and adjusted to pH 3.1 at 1.0 mL min-1 flow rate. The analytes were detected at 230 nm. The run time was less than five minutes under the optimized chromatographic conditions. Four other multivariate chemometric model methods were developed and validated, namely, classical least square (CLS), principal component regression (PCR), partial least squares (PLS-1), and genetic algorithm-partial least squares (GA-PLS-1). The developed models succeeded in resolving the great similarity and overlapping in the FAV and MLP UV spectra unlike the traditional univariate methods. All methods were organic solvent-free, did not require extraction or derivatization steps, and were applied for the construction of the simultaneous dissolution profile for FAV tablets and MLP capsules. The methods revealed that the amount of the simultaneously released cited drugs increases up until reaching a plateau after 15 and 20 min for FAV and MLP, respectively. The greenness was assessed on GAPI and found to be in harmony with green analytical chemistry concepts.
Collapse
Affiliation(s)
- Yasmine Ahmed Sharaf
- Analytical Chemistry Department, Faculty of Pharmacy, Zagazig University, Zagazig 44511, Egypt; (Y.A.S.); (R.A.S.)
| | - Sami El Deeb
- Institute of Medicinal and Pharmaceutical Chemistry, Technische Universitaet Braunschweig, 38106 Braunschweig, Germany
- Natural and Medical Sciences Research Center, University of Nizwa, P.O. Box 33, Birkat Al Mauz, Nizwa 616, Oman; (A.E.I.); (A.A.-H.)
| | - Adel Ehab Ibrahim
- Natural and Medical Sciences Research Center, University of Nizwa, P.O. Box 33, Birkat Al Mauz, Nizwa 616, Oman; (A.E.I.); (A.A.-H.)
- Analytical Chemistry Department, Faculty of Pharmacy, Port-Said University, Port Said 42526, Egypt
| | - Ahmed Al-Harrasi
- Natural and Medical Sciences Research Center, University of Nizwa, P.O. Box 33, Birkat Al Mauz, Nizwa 616, Oman; (A.E.I.); (A.A.-H.)
| | - Rania Adel Sayed
- Analytical Chemistry Department, Faculty of Pharmacy, Zagazig University, Zagazig 44511, Egypt; (Y.A.S.); (R.A.S.)
| |
Collapse
|
23
|
Ratih R, Asmari M, Abdel-Megied AM, Elbarbry F, El Deeb S. Biosimilars: Review of regulatory, manufacturing, analytical aspects and beyond. Microchem J 2021. [DOI: 10.1016/j.microc.2021.106143] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
|
24
|
El Deeb S, Silva CF, Junior CSN, Hanafi RS, Borges KB. Chiral Capillary Electrokinetic Chromatography: Principle and Applications, Detection and Identification, Design of Experiment, and Exploration of Chiral Recognition Using Molecular Modeling. Molecules 2021; 26:2841. [PMID: 34064769 PMCID: PMC8151978 DOI: 10.3390/molecules26102841] [Citation(s) in RCA: 20] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/06/2021] [Revised: 05/04/2021] [Accepted: 05/07/2021] [Indexed: 12/19/2022] Open
Abstract
This work reviews the literature of chiral capillary electrokinetic chromatography from January 2016 to March 2021. This is done to explore the state-of-the-art approach and recent developments carried out in this field. The separation principle of the technique is described and supported with simple graphical illustrations, showing migration under normal and reversed polarity modes of the separation voltage. The most relevant applications of the technique for enantioseparation of drugs and other enantiomeric molecules in different fields using chiral selectors in single, dual, or multiple systems are highlighted. Measures to improve the detection sensitivity of chiral capillary electrokinetic chromatography with UV detector are discussed, and the alternative aspects are explored, besides special emphases to hyphenation compatibility to mass spectrometry. Partial filling and counter migration techniques are described. Indirect identification of the separated enantiomers and the determination of enantiomeric migration order are mentioned. The application of Quality by Design principles to facilitate method development, optimization, and validation is presented. The elucidation and explanation of chiral recognition in molecular bases are discussed with special focus on the role of molecular modeling.
Collapse
Affiliation(s)
- Sami El Deeb
- Institute of Medicinal and Pharmaceutical Chemistry, Technische Universität Braunschweig, 38106 Braunschweig, Germany
| | - Camilla Fonseca Silva
- Departamento de Ciências Naturais, Campus Dom Bosco, Universidade Federal de São João del-Rei (UFSJ), Praça Dom Helvécio 74, Fábricas, São João del-Rei 36301-160, Minas Gerais, Brazil; (C.F.S.); (C.S.N.J.); (K.B.B.)
| | - Clebio Soares Nascimento Junior
- Departamento de Ciências Naturais, Campus Dom Bosco, Universidade Federal de São João del-Rei (UFSJ), Praça Dom Helvécio 74, Fábricas, São João del-Rei 36301-160, Minas Gerais, Brazil; (C.F.S.); (C.S.N.J.); (K.B.B.)
| | - Rasha Sayed Hanafi
- Department of Pharmaceutical Chemistry, Faculty of Pharmacy and Biotechnology, German University in Cairo, Cairo 11835, Egypt;
| | - Keyller Bastos Borges
- Departamento de Ciências Naturais, Campus Dom Bosco, Universidade Federal de São João del-Rei (UFSJ), Praça Dom Helvécio 74, Fábricas, São João del-Rei 36301-160, Minas Gerais, Brazil; (C.F.S.); (C.S.N.J.); (K.B.B.)
| |
Collapse
|
25
|
Ratih R, Wätzig H, Stein M, El Deeb S. Investigation of the enantioselective interaction between selected drug enantiomers and human serum albumin by mobility shift-affinity capillary electrophoresis. J Sep Sci 2020; 43:3960-3968. [PMID: 32823373 DOI: 10.1002/jssc.202000372] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2020] [Revised: 08/14/2020] [Accepted: 08/15/2020] [Indexed: 12/26/2022]
Abstract
Mobility shift-affinity capillary electrophoresis was employed for enantioseparation and simultaneous binding constant determination. Human serum albumin was used as a chiral selector in the background electrolyte composed of 20 mM phosphate buffer, pH 7.4. The applied setup supports a high mobility shift since albumin and the drug-albumin complex hold negative net charges, while model compounds of amlodipine and verapamil are positively charged. In order to have an accurate effective mobility determination, the Haarhoff-van der Linde function was utilized. Subsequently, the association constant was determined by nonlinear regression analysis of the dependence of effective mobilities on the total protein concentration. Differences in the apparent binding status between the enantiomers lead to mobility shifts of different extends (α). This resulted in enantioresolutions of Rs = 1.05-3.63 for both drug models. R-(+)-Verapamil (KA 1844 M-1 ) proved to bind stronger to human serum albumin compared to S-(-)-verapamil (KA 6.6 M-1 ). The association constant of S-(-)-amlodipine (KA 25 073 M-1 ) was found to be slightly higher compared to its antipode (KA 22 620 M-1 ) when applying the racemic mixture. The low measurement uncertainty of this approach was demonstrated by the close agreement of the association constant of the enantiopure S-(-)-form (KA 25 101 M-1 ).
Collapse
Affiliation(s)
- Ratih Ratih
- Institute of Medicinal and Pharmaceutical Chemistry, Technische Universität Braunschweig, Braunschweig, Germany.,Department of Pharmaceutical Chemistry, Faculty of Pharmacy, University of Surabaya, Surabaya, Indonesia
| | - Hermann Wätzig
- Institute of Medicinal and Pharmaceutical Chemistry, Technische Universität Braunschweig, Braunschweig, Germany
| | - Matthias Stein
- Institute of Medicinal and Pharmaceutical Chemistry, Technische Universität Braunschweig, Braunschweig, Germany
| | - Sami El Deeb
- Institute of Medicinal and Pharmaceutical Chemistry, Technische Universität Braunschweig, Braunschweig, Germany
| |
Collapse
|
26
|
Asmari M, Abdel-Megied AM, Michalcová L, Glatz Z, El Deeb S. Analytical approaches for the determination of deferiprone and its iron (III) complex: Investigation of binding affinity based on liquid chromatography-mass spectrometry (LC-ESI/MS) and capillary electrophoresis-frontal analysis (CE/FA). Microchem J 2020. [DOI: 10.1016/j.microc.2019.104556] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
|
27
|
El Deeb S, Ma BN, Baecker D, Gust R. Studies on the stability of the anticancer-active [N,N′-bis(salicylidene)-1,2-phenylenediamine]chloridoiron(III) complex under pharmacological-like conditions. Inorganica Chim Acta 2019. [DOI: 10.1016/j.ica.2018.12.002] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
|
28
|
Alhazmi HA, Javed SA, Ahsan W, Rehman Z, Al Bratty M, El Deeb S, Saleh SF. Investigation of binding behavior of important metal ions to thioredoxin reductase using mobility-shift affinity capillary electrophoresis: A preliminary insight into the development of new metal-based anticancer drugs. Microchem J 2019. [DOI: 10.1016/j.microc.2018.10.035] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
|
29
|
Asmari M, Michalcová L, Alhazmi HA, Glatz Z, El Deeb S. Investigation of deferiprone binding to different essential metal ions using microscale thermophoresis and electrospray ionization mass spectrometry. Microchem J 2018. [DOI: 10.1016/j.microc.2017.10.004] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
|
30
|
Asmari M, Ratih R, Alhazmi HA, El Deeb S. Thermophoresis for characterizing biomolecular interaction. Methods 2018; 146:107-119. [PMID: 29438829 DOI: 10.1016/j.ymeth.2018.02.003] [Citation(s) in RCA: 68] [Impact Index Per Article: 11.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2017] [Revised: 02/06/2018] [Accepted: 02/09/2018] [Indexed: 12/20/2022] Open
Abstract
The study of biomolecular interactions is crucial to get more insight into the biological system. The interactions of protein-protein, protein-nucleic acids, protein-sugars, nucleic acid-nucleic acids and protein-small molecules are supporting therapeutics and technological developments. Recently, the development in a large number of analytical techniques for characterizing biomolecular interactions reflect the promising research investments in this field. In this review, microscale thermophoresis technology (MST) is presented as an analytical technique for characterizing biomolecular interactions. Recent years have seen much progress and several applications established. MST is a powerful technique in quantitation of binding events based on the movement of molecules in microscopic temperature gradient. Simplicity, free solutions analysis, low sample volume, short analysis time, and immobilization free are the MST advantages over other competitive techniques. A wide range of studies in biomolecular interactions have been successfully carried out using MST, which tend to the versatility of the technique to use in screening binding events in order to save time, cost and obtained high data quality.
Collapse
Affiliation(s)
- Mufarreh Asmari
- Institute of Medicinal and Pharmaceutical Chemistry, TU Braunschweig, Beethovenstrasse 55, 38106 Braunschweig, Germany
| | - Ratih Ratih
- Institute of Medicinal and Pharmaceutical Chemistry, TU Braunschweig, Beethovenstrasse 55, 38106 Braunschweig, Germany
| | - Hassan A Alhazmi
- College of Pharmacy, Jazan University, P.O. Box 114, 45142 Jazan, Saudi Arabia
| | - Sami El Deeb
- Institute of Medicinal and Pharmaceutical Chemistry, TU Braunschweig, Beethovenstrasse 55, 38106 Braunschweig, Germany.
| |
Collapse
|
31
|
Mozafari M, El Deeb S, Krull F, Wildgruber R, Weber G, Reiter CG, Wätzig H. Interaction of albumins and heparinoids investigated by affinity capillary electrophoresis and free flow electrophoresis. Electrophoresis 2017; 39:569-580. [PMID: 29131355 DOI: 10.1002/elps.201700202] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2017] [Revised: 10/20/2017] [Accepted: 11/06/2017] [Indexed: 01/04/2023]
Abstract
A fast and precise affinity capillary electrophoresis (ACE) method has been applied to investigate the interactions between two serum albumins (HSA and BSA) and heparinoids. Furthermore, different free flow electrophoresis methods were developed to separate the species which appears owing to interaction of albumins with pentosan polysulfate sodium (PPS) under different experimental conditions. For ACE experiments, the normalized mobility ratios (∆R/Rf ), which provided information about the binding strength and the overall charge of the protein-ligand complex, were used to evaluate the binding affinities. ACE experiments were performed at two different temperatures (23 and 37°C). Both BSA and HSA interact more strongly with PPS than with unfractionated and low molecular weight heparins. For PPS, the interactions can already be observed at low mg/L concentrations (3 mg/L), and saturation is already obtained at approximately 20 mg/L. Unfractionated heparin showed almost no interactions with BSA at 23°C, but weak interactions at 37°C at higher heparin concentrations. The additional signals also appeared at higher concentrations at 37°C. Nevertheless, in most cases the binding data were similar at both temperatures. Furthermore, HSA showed a characteristic splitting in two peaks especially after interacting with PPS, which is probably attributable to the formation of two species or conformational change of HSA after interacting with PPS. The free flow electrophoresis methods have confirmed and completed the ACE experiments.
Collapse
Affiliation(s)
- Mona Mozafari
- Institute of Medicinal and Pharmaceutical Chemistry, TU Braunschweig, Brunswick, Germany
| | - Sami El Deeb
- Institute of Medicinal and Pharmaceutical Chemistry, TU Braunschweig, Brunswick, Germany
| | - Friederike Krull
- Institute of Medicinal and Pharmaceutical Chemistry, TU Braunschweig, Brunswick, Germany
| | | | | | | | - Hermann Wätzig
- Institute of Medicinal and Pharmaceutical Chemistry, TU Braunschweig, Brunswick, Germany
| |
Collapse
|
32
|
Kurdi SE, Muaileq DA, Alhazmi HA, Bratty MA, Deeb SE. Comparing monolithic and fused core HPLC columns for fast chromatographic analysis of fat-soluble vitamins. Acta Pharm 2017; 67:203-213. [PMID: 28590909 DOI: 10.1515/acph-2017-0013] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Accepted: 12/22/2016] [Indexed: 12/27/2022]
Abstract
HPLC stationary phases of monolithic and fused core type can be used to achieve fast chromatographic separation as an alternative to UPLC. In this study, monolithic and fused core stationary phases are compared for fast separation of four fat-soluble vitamins. Three new methods on the first and second generation monolithic silica RP-18e columns and a fused core pentafluoro-phenyl propyl column were developed. Application of three fused core columns offered comparable separations of retinyl palmitate, DL-α-tocopheryl acetate, cholecalciferol and menadione in terms of elution speed and separation efficiency. Separation was achieved in approx. 5 min with good resolution (Rs > 5) and precision (RSD ≤ 0.6 %). Monolithic columns showed, however, a higher number of theoretical plates, better precision and lower column backpressure than the fused core column. The three developed methods were successfully applied to separate and quantitate fat-soluble vitamins in commercial products.
Collapse
Affiliation(s)
- Said El Kurdi
- Chemistry Department Faculty of Science, Islamic University Gaza, Gaza , Palestine, State of
| | - Dina Abu Muaileq
- Pharmaceutical Chemistry Department, Faculty of Pharmacy Al-Azhar University-Gaza, Gaza , Palestine, State of
| | - Hassan A. Alhazmi
- Pharmaceutical Chemistry Department, Faculty of Pharmacy Jazan University, Jazan , Saudi Arabia
| | - Mohammed Al Bratty
- Pharmaceutical Chemistry Department, Faculty of Pharmacy Jazan University, Jazan , Saudi Arabia
| | - Sami El Deeb
- Institute of Medicinal and Pharmaceutical Chemistry TU Braunschweig, D-38106 Braunschweig , Germany
| |
Collapse
|
33
|
Mozafari M, Balasupramaniam S, Preu L, El Deeb S, Reiter CG, Wätzig H. Using affinity capillary electrophoresis and computational models for binding studies of heparinoids with p-selectin and other proteins. Electrophoresis 2017; 38:1560-1571. [DOI: 10.1002/elps.201600480] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2016] [Revised: 02/28/2017] [Accepted: 03/01/2017] [Indexed: 02/01/2023]
Affiliation(s)
- Mona Mozafari
- Institute of Medicinal and Pharmaceutical Chemistry; TU Braunschweig; Braunschweig Germany
| | | | - Lutz Preu
- Institute of Medicinal and Pharmaceutical Chemistry; TU Braunschweig; Braunschweig Germany
| | - Sami El Deeb
- Institute of Medicinal and Pharmaceutical Chemistry; TU Braunschweig; Braunschweig Germany
| | | | - Hermann Wätzig
- Institute of Medicinal and Pharmaceutical Chemistry; TU Braunschweig; Braunschweig Germany
| |
Collapse
|
34
|
Nachbar M, El Deeb S, Mozafari M, Alhazmi HA, Preu L, Redweik S, Lehmann WD, Wätzig H. Ca2+-complex stability of GAPAGPLIVPY peptide in gas and aqueous phase, investigated by affinity capillary electrophoresis and molecular dynamics simulations and compared to mass spectrometric results. Electrophoresis 2016; 37:744-51. [DOI: 10.1002/elps.201500403] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/28/2015] [Revised: 11/06/2015] [Accepted: 11/26/2015] [Indexed: 11/09/2022]
Affiliation(s)
- Markus Nachbar
- Institute of Medicinal and Pharmaceutical Chemistry; TU Braunschweig; Braunschweig Germany
| | - Sami El Deeb
- Institute of Medicinal and Pharmaceutical Chemistry; TU Braunschweig; Braunschweig Germany
| | - Mona Mozafari
- Institute of Medicinal and Pharmaceutical Chemistry; TU Braunschweig; Braunschweig Germany
| | - Hassan A. Alhazmi
- Institute of Medicinal and Pharmaceutical Chemistry; TU Braunschweig; Braunschweig Germany
| | - Lutz Preu
- Institute of Medicinal and Pharmaceutical Chemistry; TU Braunschweig; Braunschweig Germany
| | - Sabine Redweik
- Institute of Medicinal and Pharmaceutical Chemistry; TU Braunschweig; Braunschweig Germany
| | - Wolf Dieter Lehmann
- Core Facility Molecular Structure Analysis; German Cancer Research Center (DKFZ); Heidelberg Germany
| | - Hermann Wätzig
- Institute of Medicinal and Pharmaceutical Chemistry; TU Braunschweig; Braunschweig Germany
| |
Collapse
|
35
|
Mozafari M, Nachbar M, El Deeb S. Precise small volume sample handling for capillary electrophoresis. Electrophoresis 2015; 36:2665-2669. [PMID: 26335350 DOI: 10.1002/elps.201500309] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2015] [Revised: 08/27/2015] [Accepted: 08/27/2015] [Indexed: 01/06/2023]
Abstract
CE is one of the most important analytical techniques. Although the injected sample volume in CE is only in the nanoliter range, most commercial CE instruments need approximately 50 μL of the sample in the injection vial to perform the analysis. Hence, in order to fully profit from the low injection volumes, smaller vial volumes are required. Thus experiments were performed using silicone oil, which has higher density than water (1.09 g/mL) to replace sample dead volume in the vial. The results were compared to those performed without using the silicone oil in the sample vial. As an example five standard proteins namely beta-lactoglobulin, BSA, HSA, myoglobin, and ovalbumin, and one of the coagulation cascade involved proteins called vitonectin were investigated using CE. Mobility ratios and peak areas were compared. However, no significant changes were observed (RSDs% for mobility ratios and peak areas were better than 0.9 and 5.8%, respectively). Afterwards, an affinity CE method was used to investigate the interactions of two proteins, namely HSA and vitronectin, with three ligands namely enoxaparin sodium, unfractionated heparin, and pentosan polysulfate sodium. Mobility shift precision results showed that the employment of the filling has no noticeable effect on any of the protein-ligand interactions. Using a commercial PrinCE instrument and an autosampler the required sample volume is reduced down to 10 μL, and almost this complete volume can be subsequently injected during repeated experiments.
Collapse
Affiliation(s)
- Mona Mozafari
- Institute of Medicinal and Pharmaceutical Chemistry, Braunschweig, Germany
| | - Markus Nachbar
- Institute of Medicinal and Pharmaceutical Chemistry, Braunschweig, Germany
| | - Sami El Deeb
- Institute of Medicinal and Pharmaceutical Chemistry, Braunschweig, Germany
| |
Collapse
|
36
|
El-Hady DA, Albishri HM, Rengarajan R, Deeb SE, Wätzig H. Stabilizing proteins for affinity capillary electrophoresis using ionic liquid aqueous two phase systems: Pharmaceuticals and human serum albumin. Electrophoresis 2015; 36:3080-7. [DOI: 10.1002/elps.201500199] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2015] [Revised: 08/31/2015] [Accepted: 09/16/2015] [Indexed: 11/08/2022]
Affiliation(s)
- Deia Abd El-Hady
- Chemistry Department, Faculty of Science; University of Jeddah; Jeddah Saudi Arabia
- Chemistry Department, Faculty of Science; Assiut University; Assiut Egypt
| | - Hassan M. Albishri
- Chemistry Department, Faculty of Science; King Abdulaziz University; Jeddah Saudi Arabia
| | - Rajesh Rengarajan
- Chemistry Department, Faculty of Science; King Abdulaziz University; Jeddah Saudi Arabia
| | - Sami El Deeb
- Institute of Medicinal and Pharmaceutical Chemistry; TU Braunschweig; Braunschweig Germany
| | - Hermann Wätzig
- Institute of Medicinal and Pharmaceutical Chemistry; TU Braunschweig; Braunschweig Germany
| |
Collapse
|
37
|
Alhazmi HA, Deeb SE, Nachbar M, Redweik S, Albishri HM, El-Hady DA, Wätzig H. Optimization of affinity capillary electrophoresis for routine investigations of protein-metal ion interactions. J Sep Sci 2015; 38:3629-37. [DOI: 10.1002/jssc.201500182] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/11/2015] [Revised: 07/25/2015] [Accepted: 07/25/2015] [Indexed: 12/31/2022]
Affiliation(s)
- Hassan A. Alhazmi
- Institute of Medicinal and Pharmaceutical Chemistry; TU Braunschweig; Braunschweig Germany
- Department of Pharmaceutical Chemistry, College of pharmacy; Jazan University; Jazan Saudi Arabia
| | - Sami El Deeb
- Institute of Medicinal and Pharmaceutical Chemistry; TU Braunschweig; Braunschweig Germany
| | - Markus Nachbar
- Institute of Medicinal and Pharmaceutical Chemistry; TU Braunschweig; Braunschweig Germany
| | - Sabine Redweik
- Institute of Medicinal and Pharmaceutical Chemistry; TU Braunschweig; Braunschweig Germany
| | - Hassan M. Albishri
- Chemistry Department, Faculty of Science; King Abdulaziz University; Jeddah Saudi Arabia
| | - Deia Abd El-Hady
- Chemistry Department, Faculty of Science; University of Jeddah; Jeddah Saudi Arabia
- Chemistry Department, Faculty of Science; Assiut University; Assiut Egypt
| | - Hermann Wätzig
- Institute of Medicinal and Pharmaceutical Chemistry; TU Braunschweig; Braunschweig Germany
| |
Collapse
|
38
|
Wätzig H, Oltmann-Norden I, Steinicke F, Alhazmi HA, Nachbar M, El-Hady DA, Albishri HM, Baumann K, Exner T, Böckler FM, El Deeb S. Data quality in drug discovery: the role of analytical performance in ligand binding assays. J Comput Aided Mol Des 2015; 29:847-65. [DOI: 10.1007/s10822-015-9851-6] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2015] [Accepted: 06/02/2015] [Indexed: 01/24/2023]
|
39
|
Alhazmi HA, Nachbar M, Albishri HM, El-Hady DA, Redweik S, El Deeb S, Wätzig H. A comprehensive platform to investigate protein–metal ion interactions by affinity capillary electrophoresis. J Pharm Biomed Anal 2015; 107:311-7. [DOI: 10.1016/j.jpba.2015.01.017] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/05/2014] [Revised: 01/02/2015] [Accepted: 01/07/2015] [Indexed: 12/16/2022]
|
40
|
Deeb SE, Wätzig H, El-Hady DA, Albishri HM, de Griend CSV, Scriba GKE. Recent advances in capillary electrophoretic migration techniques for pharmaceutical analysis. Electrophoresis 2014; 35:170-89. [PMID: 24395663 DOI: 10.1002/elps.201300411] [Citation(s) in RCA: 66] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/21/2013] [Revised: 10/04/2013] [Accepted: 10/04/2013] [Indexed: 12/31/2022]
Abstract
Since the introduction about 30 years ago, CE techniques have gained a significant impact in pharmaceutical analysis. The present review covers recent advances and applications of CE for the analysis of pharmaceuticals. Both small molecules and biomolecules such as proteins are considered. The applications range from the determination of drug-related substances to the analysis of counterions and the determination of physicochemical parameters. Furthermore, general considerations of CE methods in pharmaceutical analysis are described.
Collapse
Affiliation(s)
- Sami El Deeb
- Drug Analysis and Research Center, Department of Pharmaceutical Chemistry, Al-Azhar University - Gaza, Gaza, Palestine; Institute of Medicinal and Pharmaceutical Chemistry, TU Braunschweig, Braunschweig, Germany
| | | | | | | | | | | |
Collapse
|
41
|
Deeb SE, Wätzig H, El-Hady DA. Capillary electrophoresis to investigate biopharmaceuticals and pharmaceutically-relevant binding properties. Trends Analyt Chem 2013. [DOI: 10.1016/j.trac.2013.04.005] [Citation(s) in RCA: 47] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
|
42
|
El Deeb S, Ma BN, Gust R. Development and validation of a LC method for the separation and determination of the anticancer-active Fe(III) (4-methoxy-salophene) using the new second-generation monolith. J Sep Sci 2013; 35:3434-8. [PMID: 23225710 DOI: 10.1002/jssc.201200734] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2012] [Revised: 09/03/2012] [Accepted: 09/03/2012] [Indexed: 01/29/2023]
Abstract
LC method with the newly introduced second-generation monolithic silica RP-18e column has been developed for the separation of Fe(III) (salophene) and four methoxy-substituted Fe(III) (salophene) complexes. The method has been validated for the quantitation of Fe(III) (4-OMe-salophene), a highly active anticancer substance in vitro, bound to serum albumin. Our routinely used high-resolution continuum-source atomic absorption spectroscopy method based on the determination of the central iron atom was unsuitable in this case because serum originally contains significant amounts of iron as revealed by a blank sample of serum albumin. The developed LC method depends on detecting the whole complex rather than the bound iron. Two morphologically different first- and second-generation HPLC monolithic columns have been compared for this purpose. The newly introduced second-generation monolithic silica column Chromolith(®) HighResolution RP-18e column (100 × 4.6 mm, Merck) separated the mixture successful within 13 min. A mobile phase consisting of 25 mM phosphate buffer pH 3/methanol (60:40, v/v) was used at a flow rate of 1 mL/min. The dynamic linear working range of the calibration curve for Fe(III) (4-OMe-salophene) was found to be between 1 and 200 μg/mL. Detection and quantitation limits were 0.3 and 1 μg/mL, respectively.
Collapse
Affiliation(s)
- Sami El Deeb
- Institute of Pharmacy, Freie Universität Berlin, Germany
| | | | | |
Collapse
|
43
|
El Deeb S, Dawwas HA, Gust R. Recent methodological and instrumental development in MEKC. Electrophoresis 2013; 34:1295-303. [PMID: 23417897 DOI: 10.1002/elps.201200574] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2012] [Revised: 01/04/2013] [Accepted: 01/05/2013] [Indexed: 11/08/2022]
Abstract
The review gives an update about the methodological and instrumental developments in micellar electrokinetic capillary chromatography as a type of CE analytical technique. Here, the last two years development of the technique are particularly presented. Recent approaches to improve sensitivity are discussed. Newly introduced concentration techniques and experimental methods for verification of the different mechanisms and processes of micellar electrokinetic chromatography analysis are highlighted. A theoretical model to explain changes in separation and electrophoretic mobility order of fully charged analytes are demonstrated. Modern approaches for improving compatibility of micellar electrokinetic capillary chromatography to mass spectrometry are also reported.
Collapse
Affiliation(s)
- Sami El Deeb
- Department of Pharmaceutical Chemistry, Institute of Pharmacy, Center for Molecular Biosciences Innsbruck, University of Innsbruck, Innsbruck, Austria
| | | | | |
Collapse
|
44
|
Grotefend S, Kaminski L, Wroblewitz S, Deeb SE, Kühn N, Reichl S, Limberger M, Watt S, Wätzig H. Protein quantitation using various modes of high performance liquid chromatography. J Pharm Biomed Anal 2012; 71:127-38. [DOI: 10.1016/j.jpba.2012.08.024] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/12/2012] [Accepted: 08/20/2012] [Indexed: 11/25/2022]
|
45
|
El Deeb S, Ma BN, Gust R. Determination of NiII(3-OMe-salophene) in MCF7 and HT29 cancer cell lines using HR-CS-AAS and in serum albumin using LC with monolithic silica. Microchem J 2012. [DOI: 10.1016/j.microc.2011.09.013] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
|
46
|
|
47
|
El Deeb S, Iriban MA, Gust R. MEKC as a powerful growing analytical technique. Electrophoresis 2010; 32:166-83. [PMID: 21171121 DOI: 10.1002/elps.201000398] [Citation(s) in RCA: 83] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2010] [Revised: 09/30/2010] [Accepted: 09/30/2010] [Indexed: 11/11/2022]
Abstract
This review summarizes the principle and the developments in MEKC in terms of separation power, sensitivity, and detection approaches more than 25 years after its appearance. Newly used surfactants are mentioned. Classical and new sample concentration techniques in MEKC are described. The different detection approaches in MEKC with advantages, limitations, and future prospects are also discussed. This review highlights the wider application of MEKC in different analytical fields. Various recent selected applications of this technique in different analytical fields are reported.
Collapse
Affiliation(s)
- Sami El Deeb
- Institute of Pharmacy, Freie Universität Berlin, Berlin, Germany
| | | | | |
Collapse
|
48
|
El Deeb S. Evaluation of a Vancomycin-Based LC Column in Enantiomeric Separation of Atenolol: Method Development, Repeatability Study and Enantiomeric Impurity Determination. Chromatographia 2010. [DOI: 10.1365/s10337-010-1548-3] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
|
49
|
Abstract
The growing number of chiral new drug substances requires increasing efforts in developing enantioselective methods. According to International conference on Harmonization guidelines, one should quantify the enantiomeric impurity of 0.1% relative to the major constituent. Capillary electrophoresis has evolved into an important tool for the separation of chiral drugs. The common strategies consist of two steps: firstly, initial separation conditions are evaluated. This screening usually focuses on the selection of the appropriate chiral selector. In our study 22 neutral, anionic or cationic cyclodextrins were dissolved in phosphate buffer (pH 2.5, 50 mM, CD conc.: 2.0%). Then they were investigated for the separation of 14 chiral compounds. Secondly, the obtained initial conditions for the enantiomeric separation were optimized in terms of resolution and analysis time. In our approach, important optimized factors including the concentration of the chiral selector (1-10%), the pH of the buffer (2.0-9.0), and the percentage of organic modifier (0-15%) were studied. This common strategy was completed by elaborating final requirements for the quantification of the enantiomeric impurity. A resolution between 3 and 4 was found to be necessary for the racemic mixture during the screening and optimization steps, in order to later allow for peak overloading and thus to sufficiently increase the signal-to-noise ratio. The complete strategy was conducted for atenolol, isoprenaline, verapamil and mandelic acid.
Collapse
Affiliation(s)
- Sami El Deeb
- Department of Pharmaceutical Chemistry, Al-Azhar University-Gaza, Gaza, Palestinian Territory
| | | | | |
Collapse
|
50
|
Abstract
Fast HPLC methods are becoming more and more important. Using monolithic HPLC columns for fast separations, a flow program can be applied for further decrease in the total run time. An interesting issue was whether the flow program affects repeatability. The investigated method was a generic assay for the oral antidiabetic drugs glibenclamide and glimepiride in the presence of two of their degradation products. A flow program ranging from 5.0 to 9.9 mL/min had been set up to decrease the run time to approximately 1.7 min. Within-day RSD% (n = 40) for both retention times and peak areas were less than 1%. At flow rates higher than 7 mL/min, repeatability was impaired to some extent. It became mainly noticeable through the day-to-day precision (n = 60) which showed RSD% up to 2%. However, further investigations indicated that this was rather related to pump inefficiency at high flow rates than to the flow program as such. Presuming the use of appropriate equipment, qualified for high flow rates, the application of a flow program for shortening the run time is absolutely reasonable and does not affect repeatability.
Collapse
Affiliation(s)
- Lukas Kaminski
- Institute of Pharmaceutical Chemistry, Technical University of Braunschweig, Braunschweig, Germany
| | | | | |
Collapse
|