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Alatawi RAS. Construction of Amino‐Functionalized Molecularly Imprinted Silica Particles for (±)‐Ofloxacin Chiral Separation. ChemistrySelect 2023. [DOI: 10.1002/slct.202204455] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
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Li Y, Zhou J, Gu J, Shao Q, Chen Y. Enhanced antibacterial activity of levofloxacin/hydroxypropyl-β-cyclodextrin inclusion complex: In vitro and in vivo evaluation. Colloids Surf B Biointerfaces 2022; 215:112514. [PMID: 35490541 DOI: 10.1016/j.colsurfb.2022.112514] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2022] [Revised: 04/05/2022] [Accepted: 04/20/2022] [Indexed: 10/18/2022]
Abstract
Levofloxacin is the levo-enantiomer of ofloxacin (a fluoroquinolone class of antibacterial drug). Cyclodextrins (CDs) including hydroxypropyl-β-cyclodextrin (HPβCD) are generally used as a chiral selector for the enantioseparation of some drugs including levofloxacin or as a drug/food nanocarrier for the efficacy improvement of many pharmaceuticals. We hypothesized that the cyclodextrin inclusion is potentially able to further improve the antibacterial activity of levofloxacin. To test this hypothesis, the levofloxacin/HPβCD inclusion complex was prepared by the freeze-drying method and characterized by phase solubility diagram, differential scanning calorimetry (DSC), X-ray diffractometry (XRD), UV-Vis spectrophotometer, and 1H NMR spectroscopy, confirming the successful HPβCD inclusion of levofloxacin. The in vitro antibacterial effects of HPβCD, levofloxacin, and the levofloxacin/HPβCD inclusion complex against four different bacterial strains in liquid media and on agar plates were determined/compared (an MIC90 of 0.5-1.0 μg/mL for the inclusion complex compared with that of 1.0-2.0 μg/mL for free levofloxacin in liquid). Moreover, the in vivo antibacterial effects of levofloxacin and levofloxacin/HPβCD inclusion complex were tested by using a skin scald model in mice infected with Staphylococcus aureus, and decreased amounts of both bacteria and leukocytes were detected in scalded skin after the inclusion complex treatment. The data revealed that the levofloxacin/HPβCD inclusion complex had an enhanced antibacterial activity compared with free levofloxacin. It implies that cyclodextrins (e.g. HPβCD) may have a beneficial role when using as a chiral selector or as a drug nanocarrier for levofloxacin and that the levofloxacin/HPβCD inclusion complex has the potential of being developed into a pharmaceutical for antibacterial therapies.
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Affiliation(s)
- Yuanfang Li
- Jiangxi Key Laboratory for Microscale interdisciplinary Study, Institute for Advanced Study, Nanchang University, Nanchang, Jiangxi 330031, PR China
| | - Jinhua Zhou
- Jiangxi Key Laboratory for Microscale interdisciplinary Study, Institute for Advanced Study, Nanchang University, Nanchang, Jiangxi 330031, PR China
| | - Jiaxuan Gu
- Jiangxi Key Laboratory for Microscale interdisciplinary Study, Institute for Advanced Study, Nanchang University, Nanchang, Jiangxi 330031, PR China
| | - Qingqing Shao
- Jiangxi Key Laboratory for Microscale interdisciplinary Study, Institute for Advanced Study, Nanchang University, Nanchang, Jiangxi 330031, PR China
| | - Yong Chen
- Jiangxi Key Laboratory for Microscale interdisciplinary Study, Institute for Advanced Study, Nanchang University, Nanchang, Jiangxi 330031, PR China.
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Recent Advances on Chiral Mobile Phase Additives: A Critical Review. JOURNAL OF ANALYSIS AND TESTING 2022. [DOI: 10.1007/s41664-022-00222-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Cao S, Ma Q, Liu Y, Zhang J, Wang Z. Cellulose tris-(3,5-dimethyl phenyl carbamate) as a chiral stationary phase for enantiomeric determination of ofloxacin enantiomers and molecular docking study on the chiral separation mechanism. NEW J CHEM 2022. [DOI: 10.1039/d1nj06126g] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The higher the BE value, the harder the enantiomer was to elute, which was in agreement with the enantiomer elution order.
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Affiliation(s)
- Shirong Cao
- School of Pharmacy, Binzhou Medical University, 346 Guanhai Road Laishan District, 264003, Yantai, Shandong Province, P. R. China
| | - Qianyun Ma
- School of Pharmacy, Binzhou Medical University, 346 Guanhai Road Laishan District, 264003, Yantai, Shandong Province, P. R. China
| | - Ye Liu
- School of Pharmacy, Binzhou Medical University, 346 Guanhai Road Laishan District, 264003, Yantai, Shandong Province, P. R. China
| | - Jiayu Zhang
- School of Pharmacy, Binzhou Medical University, 346 Guanhai Road Laishan District, 264003, Yantai, Shandong Province, P. R. China
| | - Zhaokun Wang
- School of Pharmacy, Binzhou Medical University, 346 Guanhai Road Laishan District, 264003, Yantai, Shandong Province, P. R. China
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Raikar P, Bannimath G. Recent Trends in Chiral Separation-A Collective Paradigm of Selected Chiral Impurities. CURR PHARM ANAL 2020. [DOI: 10.2174/1573412915666181219144507] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
Chiral separation plays a very important role in the modern pharmaceutical analysis and will
continue in upcoming years. Separation and identification of chiral impurities are indispensable. According
to ICH guidelines, only the active enantiomer of the drug has to be marketed, so there is a focus
on separation of the inactive enantiomer which acts as a chiral impurity. The impurities present in the
enantiomers also pose various toxic adverse effects on bioavailability and efficacy, hence the need to
separate these impurities will forever be trending. This review primarily focuses on the separation techniques
like Capillary Electrophoresis (CE), High-Performance Liquid Chromatography (HPLC), Gas
Chromatography (GC), and Supercritical Fluid Chromatography (SFC) followed by the year-wise trend
in the separation of selected chiral impurities. In the coming years, researchers should work on using
ultra-fast, selective, and sensitive methods for the effective separation of chiral impurities.
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Affiliation(s)
- Prachi Raikar
- Department of Pharmaceutical Chemistry, JSS College of Pharmacy, JSS Academy of Higher Education and Research, SS Nagar, Mysuru 570015, India
| | - Gurupadayya Bannimath
- Department of Pharmaceutical Chemistry, JSS College of Pharmacy, JSS Academy of Higher Education and Research, SS Nagar, Mysuru 570015, India
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Hassan RM, Yehia AM, Saleh OA, El-Azzouny AA, Aboul-Enein HY. Structure-retention relationship for enantioseparation of selected fluoroquinolones. Chirality 2018; 30:828-836. [DOI: 10.1002/chir.22861] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/18/2018] [Revised: 03/08/2018] [Accepted: 03/09/2018] [Indexed: 11/10/2022]
Affiliation(s)
- Rasha M. Hassan
- Medicinal and Pharmaceutical Chemistry Department, Pharmaceutical and Drug Industries Research Division; National Research Centre (ID: 60014618); Giza Egypt
| | - Ali M. Yehia
- Analytical Chemistry Department, Faculty of Pharmacy; Cairo University; Cairo Egypt
| | - Ola A. Saleh
- Medicinal and Pharmaceutical Chemistry Department, Pharmaceutical and Drug Industries Research Division; National Research Centre (ID: 60014618); Giza Egypt
| | - Aida A. El-Azzouny
- Medicinal and Pharmaceutical Chemistry Department, Pharmaceutical and Drug Industries Research Division; National Research Centre (ID: 60014618); Giza Egypt
| | - Hassan Y. Aboul-Enein
- Medicinal and Pharmaceutical Chemistry Department, Pharmaceutical and Drug Industries Research Division; National Research Centre (ID: 60014618); Giza Egypt
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Wang J, Jiang XX, Zhao W, Hu J, Guan QY, Xu JJ, Chen HY. On-line Identification of chiral ofloxacin in milk with an extraction/ionization device coupled to Electrospray Mass Spectrometry. Talanta 2017; 171:190-196. [DOI: 10.1016/j.talanta.2017.04.071] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2017] [Revised: 04/26/2017] [Accepted: 04/30/2017] [Indexed: 01/18/2023]
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Liu Y, Wang X. Enantioseparation of ofloxacin and its four related substances with ligand exchange-micellar electrokinetic chromatography using copper(II)-L-isoleucine complex as chiral selector. Chirality 2017; 29:422-429. [PMID: 28560736 DOI: 10.1002/chir.22705] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2017] [Revised: 03/06/2017] [Accepted: 03/19/2017] [Indexed: 01/25/2023]
Abstract
A ligand-exchange micellar electrokinetic capillary electrophoresis system with copper(II)-L-isoleucine complexes as the chiral selector incorporated in micelles of sodium dodecyl sulfate (SDS) was developed for the enantioseparation of ofloxacin and its four related substances (impurities A, C, E, and F). The effects of important parameters affecting separation such as buffer pH, SDS concentration, chiral selector concentration, and organic additive were investigated in detail. Under optimum experimental conditions, enantioseparation of ofloxacin, impurities A, C, E, and F enantiomers was accomplished with resolutions of 4.28, 2.83, 3.40, 3.58, and 2.46, respectively. Further, simultaneous separation of impurities A, C, E, and F enantiomers was achieved using 10 mmol/L NH4 OAc as the running buffer containing 4 mmol/L copper sulfate,20 mmol/L L-isoleucine, 20 mmol/L SDS, and 5% methanol at pH 8.5. To the best of our knowledge, the simultaneous enantioseparation of four impurities of ofloxacin has not been reported previously.
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Affiliation(s)
- Yongjing Liu
- School of Pharmacy, Fujian University of Traditional Chinese Medicine, Fuzhou, Fujian Province, P.R. China
| | - Xiaoying Wang
- School of Pharmacy, Fujian University of Traditional Chinese Medicine, Fuzhou, Fujian Province, P.R. China
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Zhu B, Xu S, Guo X, Wei L, Yu J, Wang T. Use of various β-cyclodextrin derivatives as chiral selectors for the enantiomeric separation of ofloxacin and its five related substances by capillary electrophoresis. J Sep Sci 2017; 40:1784-1795. [PMID: 28168817 DOI: 10.1002/jssc.201601403] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2016] [Revised: 01/26/2017] [Accepted: 01/27/2017] [Indexed: 12/15/2022]
Abstract
A capillary electrophoretic method for the enantioseparation of ofloxacin and its five related substances (potential impurities, indicated as impurities B-F) was developed using β-cyclodextrin derivatives as chiral selectors. To our knowledge, there are no previous studies about using capillary electrophoresis for the separation of impurities B-D. Six β-cyclodextrin derivatives including cationic (piperidine- and cyclohexylamine-), neutral (dimethyl- and hydroxypropyl-), and anionic (carboxymethyl- and sulfated-) β-cyclodextrin derivatives were tested and operational parameters such as buffer pH and concentration of β-cyclodextrin derivatives were investigated. The best resolutions were all obtained with anionic β-cyclodextrin derivatives: ofloxacin, impurities C-F could be best resolved with carboxymethyl-β-cyclodextrin at satisfactory resolutions of 8.27, 9.98, 5.92, 8.49 and 6.78, respectively, while for impurity B, a particularly impressive resolution value, up to 21.38, was observed using sulfated-β-cyclodextrin. The enhancement of enantioseparation observed for the tested analytes using anionic β-cyclodextrin derivatives might be due to some favorable interaction between selectors and analytes. Given the fact that the selection of chiral selector depends on the structures of analytes, with the help of structural similarities and differences of the analytes, the structure-separation relationship was further discussed.
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Affiliation(s)
- Bolin Zhu
- Shenyang Pharmaceutical University, Shenyang, Liaoning Province, P.R. China
| | - Shuying Xu
- Shenyang Pharmaceutical University, Shenyang, Liaoning Province, P.R. China
| | - Xingjie Guo
- Shenyang Pharmaceutical University, Shenyang, Liaoning Province, P.R. China
| | - Lan Wei
- Shenyang Pharmaceutical University, Shenyang, Liaoning Province, P.R. China
| | - Jia Yu
- Shenyang Pharmaceutical University, Shenyang, Liaoning Province, P.R. China
| | - Tiejie Wang
- Shenyang Pharmaceutical University, Shenyang, Liaoning Province, P.R. China
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