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Zhang Y, Huang M, Wang Q, Zhang X, Peng J, Zhang Y, Wu Q, Duan J, Mao X, Tang Z, Li B, Zhu H. Insights into the penetration of PhACs in TCM during ultrafiltration: Effects of fouling mechanisms and intermolecular interactions. Sep Purif Technol 2022. [DOI: 10.1016/j.seppur.2022.121205] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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2
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Guo P, Xu X, Chen G, Bashir K, Shu H, Ge Y, Jing W, Luo Z, Chang C, Fu Q. On-Line two dimensional liquid chromatography based on skeleton type molecularly imprinted column for selective determination of sulfonylurea additive in Chinese patent medicines or functional foods. J Pharm Biomed Anal 2017; 146:292-301. [PMID: 28903088 DOI: 10.1016/j.jpba.2017.09.008] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2017] [Revised: 09/01/2017] [Accepted: 09/02/2017] [Indexed: 11/25/2022]
Abstract
Substandard and counterfeit anti-diabetic medicines directly influence the health and impose a great danger to individual patients and to public health. Counterfeiting has become a serious and underreported problem in the pharmaceutical industry. There are a large number of counterfeit medicines flooded in anti-diabetic markets which effect human health directly and indirectly. Therefore, some novel analytical techniques are necessary to be established for detecting these counterfeit drugs. In this study, a novel skeleton type molecularly imprinted column was successfully prepared. Based on the column, a simple, fast and reliable two-dimensional chromatography analytical system was established for selective determination of the illegal sulfonylurea additive in traditional Chinese patent medicines and functional foods. The developed method was validated. The linearitiesof the method were tested with calibration curves using ten calibration points in the concentration range of 0.25-12.5μg/g. The LODs were 0.0125μg/g and 0.01μg/g for tolbutamide and glibenclamide respectively. The five batches of Chinese patent medicines and dietary supplements obtained from different markets and online websites were tested by the validated method. With good retention time and spectral confirmation, chemical anti-diabetic substances were identified and quantified in traditional Chinese medicine and in dietary supplements.
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Affiliation(s)
- Pengqi Guo
- School of Pharmacy, Xi'an Jiaotong University, Xi'an 710061, PR China
| | - Xinya Xu
- School of Pharmacy, Xi'an Jiaotong University, Xi'an 710061, PR China
| | - Guoning Chen
- School of Pharmacy, Xi'an Jiaotong University, Xi'an 710061, PR China
| | - Kamran Bashir
- School of Pharmacy, Xi'an Jiaotong University, Xi'an 710061, PR China
| | - Hua Shu
- School of Pharmacy, Xi'an Jiaotong University, Xi'an 710061, PR China
| | - Yanhui Ge
- School of Pharmacy, Xi'an Jiaotong University, Xi'an 710061, PR China
| | - Wanghui Jing
- School of Pharmacy, Xi'an Jiaotong University, Xi'an 710061, PR China
| | - Zhimin Luo
- School of Pharmacy, Xi'an Jiaotong University, Xi'an 710061, PR China
| | - Chun Chang
- School of Pharmacy, Xi'an Jiaotong University, Xi'an 710061, PR China
| | - Qiang Fu
- School of Pharmacy, Xi'an Jiaotong University, Xi'an 710061, PR China.
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Development of molecular imprinted column-on line-two dimensional liquid chromatography for selective determination of clenbuterol residues in biological samples. Food Chem 2017; 217:628-636. [DOI: 10.1016/j.foodchem.2016.09.021] [Citation(s) in RCA: 40] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2015] [Revised: 05/20/2016] [Accepted: 09/05/2016] [Indexed: 11/21/2022]
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4
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Development of molecularly imprinted column-on line-two dimensional liquid chromatography for rapidly and selectively monitoring estradiol in cosmetics. Talanta 2016; 161:830-837. [DOI: 10.1016/j.talanta.2016.09.041] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/23/2016] [Revised: 09/08/2016] [Accepted: 09/16/2016] [Indexed: 11/22/2022]
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Marszalek M, Konarska A, Szajdzinska-Pietek E, Wolszczak M. Interaction of Cationic Protoberberine Alkaloids with Human Serum Albumin. No Spectroscopic Evidence on Binding to Sudlow’s Site 1. J Phys Chem B 2013; 117:15987-93. [DOI: 10.1021/jp408827b] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
Affiliation(s)
- Milena Marszalek
- Institute of Applied Radiation
Chemistry, Lodz University of Technology, Wroblewskiego 15, 93-590 Lodz, Poland
| | - Anna Konarska
- Institute of Applied Radiation
Chemistry, Lodz University of Technology, Wroblewskiego 15, 93-590 Lodz, Poland
| | - Ewa Szajdzinska-Pietek
- Institute of Applied Radiation
Chemistry, Lodz University of Technology, Wroblewskiego 15, 93-590 Lodz, Poland
| | - Marian Wolszczak
- Institute of Applied Radiation
Chemistry, Lodz University of Technology, Wroblewskiego 15, 93-590 Lodz, Poland
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Zhang W, Bai X, Wang Y, Zhao B, Zhao D, Zhao Y. SERS spectroscopy of kaempferol and galangin under the interaction of human serum albumin with adsorbed silver nanoparticles. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2012; 92:234-237. [PMID: 22446772 DOI: 10.1016/j.saa.2012.02.039] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/29/2011] [Revised: 02/06/2012] [Accepted: 02/10/2012] [Indexed: 05/31/2023]
Abstract
Raman and surface-enhanced Raman scattering (SERS) spectroscopy were employed to probe the interaction of the flavonol drugs, kaempferol and galangin, with human serum albumin (HSA). SERS spectra of both flavonol derivatives were obtained from a colloidal silver surface in physiological condition, based on the high performance of the enhanced substrate, the most enhanced modes of kaempferol and galangin were those with certain motions perpendicular to the metal surface. The SERS spectra were allowed to predict similar orientation geometry for both of the drugs on the colloidal surface with minor difference. In addition, both flavonols-HSA complexes were prepared in different concentration ratios and the orientated differences between kaempferol and galangin were investigated by SERS.
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Affiliation(s)
- Wei Zhang
- Changchun University of Chinese Medicine, Changchun, PR China
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Hage DS, Anguizola JA, Jackson AJ, Matsuda R, Papastavros E, Pfaunmiller E, Tong Z, Vargas-Badilla J, Yoo MJ, Zheng X. CHROMATOGRAPHIC ANALYSIS OF DRUG INTERACTIONS IN THE SERUM PROTEOME. ANALYTICAL METHODS : ADVANCING METHODS AND APPLICATIONS 2011; 3:10.1039/C1AY05068K. [PMID: 24223625 PMCID: PMC3820373 DOI: 10.1039/c1ay05068k] [Citation(s) in RCA: 33] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/04/2023]
Abstract
The binding of drugs with serum proteins and binding agents such as human serum albumin, α1-acid glycoprotein, and lipoproteins is an important process in determining the activity and fate of many pharmaceuticals in the body. A variety of techniques have been used to study drug interactions with serum proteins, but there is still a need for faster or better methods for such work. High-performance liquid chromatography (HPLC) is one tool that has been utilized in many formats for these types of measurements. Advantages of using HPLC for this application include its speed and precision, its ability to be automated, its good limits of detection, and its compatibility with a wide range of assay formats and detectors. This review will discuss various approaches in which HPLC can be employed for the study of drug-protein interactions. These techniques include the use of soluble proteins in zonal elution and frontal analysis methods or vacancy techniques such as the Hummel-Dreyer method. Zonal elution and frontal analysis methods that make use of immobilized proteins and high-performance affinity chromatography will also be presented. A variety of applications will be examined, ranging from the determination of free drug fractions to the measurement of the strength or rate of a drug-protein interaction. Newer developments that will be discussed include recent work in the creation of novel mathematical approaches for HPLC studies of drug-protein binding, the use of HPLC methods for the high-throughput screening of drug-protein binding, and the creation and use of affinity monoliths or affinity microcolumns for examining drug-protein systems.
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Affiliation(s)
- David S. Hage
- Chemistry Department, University of Nebraska, Lincoln, NE USA
| | | | - Abby J. Jackson
- Chemistry Department, University of Nebraska, Lincoln, NE USA
| | - Ryan Matsuda
- Chemistry Department, University of Nebraska, Lincoln, NE USA
| | | | | | - Zenghan Tong
- Chemistry Department, University of Nebraska, Lincoln, NE USA
| | | | - Michelle J. Yoo
- Chemistry Department, University of Nebraska, Lincoln, NE USA
| | - Xiwei Zheng
- Chemistry Department, University of Nebraska, Lincoln, NE USA
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[Determination of binding domains of paeonol on immobilized human serum albumin by high-performance affinity chromatography]. Se Pu 2010; 28:688-92. [PMID: 21046789 DOI: 10.3724/sp.j.1123.2010.00688] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022] Open
Abstract
High-performance affinity chromatography was used to investigate the binding of paeonol (PAE) to immobilized human serum albumin (HSA) under the condition of pH 7.4 and temperature of 37 degrees C. Self-competition zonal elution indicated that there was only one major binding site on HSA for PAE. The association constant of PAE with HSA was 4.84 x 10(3) L/mol. Competition studies based on zonal elution were carried out between PAE and various probes which have been known to interact with several major and minor sites on HSA. PAE was found to have direct competition with L-tryptophan. The results indicated that PAE interacted with Sudlow site II on HSA. The thermodynamic analysis indicated that the main force between the paeonol and HSA was hydrogen bond or van der Waals force.
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