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Susanti, Riswoko A, Laksmono JA, Widiyarti G, Hermawan D. Surface modified nanoparticles and their applications for enantioselective detection, analysis, and separation of various chiral compounds. RSC Adv 2023; 13:18070-18089. [PMID: 37323439 PMCID: PMC10267673 DOI: 10.1039/d3ra02399k] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/11/2023] [Accepted: 05/30/2023] [Indexed: 06/17/2023] Open
Abstract
The development of efficient enantioselective detection, analysis, and separation relies significantly on molecular interaction. In the scale of molecular interaction, nanomaterials have a significant influence on the performance of enantioselective recognitions. The use of nanomaterials for enantioselective recognition involved synthesizing new materials and immobilization techniques to produce various surface-modified nanoparticles that are either encapsulated or attached to surfaces, as well as layers and coatings. The combination of surface-modified nanomaterials and chiral selectors can improve enantioselective recognition. This review aims to offer engagement insights into the production and application of surface-modified nanomaterials to achieve sensitive and selective detection, better chiral analysis, and separation of numerous chiral compounds.
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Affiliation(s)
- Susanti
- Research Center for Polymer Technology - National Research and Innovation Agency (BRIN) KST BJ. Habibie, Kawasan Puspiptek Building 460 Tangerang Selatan 15314 Indonesia
| | - Asep Riswoko
- Research Center for Polymer Technology - National Research and Innovation Agency (BRIN) KST BJ. Habibie, Kawasan Puspiptek Building 460 Tangerang Selatan 15314 Indonesia
| | - Joddy Arya Laksmono
- Research Center for Polymer Technology - National Research and Innovation Agency (BRIN) KST BJ. Habibie, Kawasan Puspiptek Building 460 Tangerang Selatan 15314 Indonesia
| | - Galuh Widiyarti
- Research Center for Pharmaceutical Ingredients and Traditional Medicine - National Research and Innovation Agency (BRIN) KST BJ Habibie, Kawasan Puspiptek Building 452 Tangerang Selatan 15314 Indonesia
| | - Dadan Hermawan
- Department of Chemistry, Faculty of Mathematics and Natural Science, Jenderal Soedirman University (UNSOED) Indonesia
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Daneshvar Tarigh G. Enantioseparation/Recognition based on nano techniques/materials. J Sep Sci 2023:e2201065. [PMID: 37043692 DOI: 10.1002/jssc.202201065] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/31/2022] [Revised: 03/15/2023] [Accepted: 03/18/2023] [Indexed: 04/14/2023]
Abstract
Enantiomers show different behaviors in interaction with the chiral environment. Due to their identical chemical structure and their wide application in various industries, such as agriculture, medicine, pesticide, food, and so forth, their separation is of great importance. Today, the term "nano" is frequently encountered in all fields. Technology and measuring devices are moving towards miniaturization, and the usage of nanomaterials in all sectors is expanding substantially. Given that scientists have recently attempted to apply miniaturized techniques known as nano-liquid chromatography/capillary-liquid chromatography, which were originally accomplished in 1988, as well as the widespread usage of nanomaterials for chiral resolution (back in 1989), this comprehensive study was developed. Searching the terms "nano" and "enantiomer separation" on scientific websites such as Scopus, Google Scholar, and Web of Science yields articles that either use miniaturized instruments or apply nanomaterials as chiral selectors with a variety of chemical and electrochemical detection techniques, which are discussed in this article.
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Affiliation(s)
- Ghazale Daneshvar Tarigh
- Department of Analytical Chemistry, University College of Science, University of Tehran, Tehran, Iran
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3
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Zhang L, Tan QG, Fan JQ, Sun C, Luo YT, Liang RP, Qiu JD. Microfluidics for chiral separation of biomolecules. Trends Analyt Chem 2022. [DOI: 10.1016/j.trac.2022.116842] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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4
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Haginaka J. Progress in Chiral Stationary Phases Based on Proteins and Glycoproteins. Chem Pharm Bull (Tokyo) 2022; 70:458-468. [PMID: 35786565 DOI: 10.1248/cpb.c22-00269] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
A lot of chiral stationary phases (CSPs) have been introduced for the purpose of analytical and preparative separations of enantiomers. CSPs based on proteins and glycoproteins have unique properties among those CSPs. This review article deals with the preparation of CSPs based on proteins and glycoproteins, their chiral recognition properties and mechanisms, focusing on the CSPs investigated in our group. The dealt proteins and glycoproteins are including bovine serum albumin, human serum albumin, lysozyme, pepsin, human α1-acid glycoprotein (AGP), chicken ovomucoid and chicken ovoglycoprotein (named chicken AGP).
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Affiliation(s)
- Jun Haginaka
- Institute for Biosciences, Mukogawa Women's University
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Abstract
Background::
Nano level chiral separation is necessary and demanding in the development
of the drug, genomic, proteomic, and other chemical and the environmental sciences. Few drugs exist
in human body cells for some days at nano level concentrations, that are out of the jurisdiction of the
detection by standard separation techniques. Likewise, the separation and identification of xenobiotics
and other environmental contaminants (at nano or low levels) are necessary for our healthiness.
Discussion:
Conclusion:
This article will be beneficial for chiral chromatographers, academicians, pharmaceutical
industries, environmental researchers and Government regulation authorities.
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Affiliation(s)
- Al Arsh Basheer
- State University of New York, Flint Entrance, Amherst, NY 14260, Buffalo, United States
| | - Iqbal Hussain
- Department of General Studies, Jubail Industrial College, Jubail Industrial City, Jubail, Saudi Arabia
| | - Marcus T. Scotti
- Cheminformatics Laboratory - Postgraduate Program in Natural Products and Synthetic Bioactive, Federal University of Paraiba-Campus I, 58051-970, Joao Pessoa, PB, Brazil
| | - Luciana Scotti
- Teaching and Research Management - University Hospital, Cheminformatics Laboratory - Postgraduate Program in Natural Products and Synthetic Bioactive, Federal University of Paraiba-Campus I, 58051-970, Joao Pessoa, PB, Brazil
| | - Imran Ali
- Department of Chemistry, College of Sciences, Taibah University, Al-Medina Al-Munawara - 41477, Saudi Arabia
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Bai Q, Zhang C, Zhao Y, Wang C, Maihemuti M, Sun C, Qi Y, Peng J, Guo X, Zhang Z, Fang L. Evaluation of chiral separation based on bovine serum albumin–conjugated carbon nanotubes as stationary phase in capillary electrochromatography. Electrophoresis 2020; 41:1253-1260. [PMID: 32350876 DOI: 10.1002/elps.202000003] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/05/2020] [Revised: 04/02/2020] [Accepted: 04/17/2020] [Indexed: 11/08/2022]
Affiliation(s)
- Qiufang Bai
- Department of Pharmacy Affiliated Zhongshan Hospital of Dalian University Dalian P. R. China
| | - Chenning Zhang
- Institute of Wudang Traditional Chinese Medicine, Taihe Hospital Hubei University of Medicine Shiyan P. R. China
| | - Yanyan Zhao
- College of Pharmacy Dalian Medical University Dalian P. R. China
| | - Chao Wang
- College of Pharmacy Dalian Medical University Dalian P. R. China
| | - Mairewaniguli Maihemuti
- School of Pharmaceutical Engineering Shenyang Pharmaceutical University Shenyang P. R. China
| | - Chengpeng Sun
- College of Pharmacy Dalian Medical University Dalian P. R. China
| | - Yan Qi
- College of Pharmacy Dalian Medical University Dalian P. R. China
| | - Jinyong Peng
- College of Pharmacy Dalian Medical University Dalian P. R. China
| | - Xingjie Guo
- School of Pharmaceutical Engineering Shenyang Pharmaceutical University Shenyang P. R. China
| | - Zhen Zhang
- Department of Cardiology Ⅳ (Cardiac Failure) Affiliated Hospital 2 of Dalian Medical University Dalian P. R. China
| | - Linlin Fang
- College of Pharmacy Dalian Medical University Dalian P. R. China
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Molecular dynamics simulation study of the effect of single-walled carbon nanotube on the enantioseparation ability of a chiral ionic liquid. J Mol Liq 2020. [DOI: 10.1016/j.molliq.2020.112769] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
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Gogoi A, Mazumder N, Konwer S, Ranawat H, Chen NT, Zhuo GY. Enantiomeric Recognition and Separation by Chiral Nanoparticles. Molecules 2019; 24:E1007. [PMID: 30871182 PMCID: PMC6470864 DOI: 10.3390/molecules24061007] [Citation(s) in RCA: 48] [Impact Index Per Article: 9.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2019] [Revised: 03/05/2019] [Accepted: 03/10/2019] [Indexed: 12/12/2022] Open
Abstract
Chiral molecules are stereoselective with regard to specific biological functions. Enantiomers differ considerably in their physiological reactions with the human body. Safeguarding the quality and safety of drugs requires an efficient analytical platform by which to selectively probe chiral compounds to ensure the extraction of single enantiomers. Asymmetric synthesis is a mature approach to the production of single enantiomers; however, it is poorly suited to mass production and allows for only specific enantioselective reactions. Furthermore, it is too expensive and time-consuming for the evaluation of therapeutic drugs in the early stages of development. These limitations have prompted the development of surface-modified nanoparticles using amino acids, chiral organic ligands, or functional groups as chiral selectors applicable to a racemic mixture of chiral molecules. The fact that these combinations can be optimized in terms of sensitivity, specificity, and enantioselectivity makes them ideal for enantiomeric recognition and separation. In chiral resolution, molecules bond selectively to particle surfaces according to homochiral interactions, whereupon an enantiopure compound is extracted from the solution through a simple filtration process. In this review article, we discuss the fabrication of chiral nanoparticles and look at the ways their distinctive surface properties have been adopted in enantiomeric recognition and separation.
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Affiliation(s)
- Ankur Gogoi
- Department of Physics, Jagannath Barooah College, Jorhat, Assam 785001, India.
| | - Nirmal Mazumder
- Department of Biophysics, School of Life Sciences, Manipal Academy of Higher Education, Manipal, Karnataka 576104, India.
| | - Surajit Konwer
- Department of Chemistry, Dibrugarh University, Dibrugarh, Assam 786004, India.
| | - Harsh Ranawat
- Department of Biophysics, School of Life Sciences, Manipal Academy of Higher Education, Manipal, Karnataka 576104, India.
| | - Nai-Tzu Chen
- Institute of New Drug Development, China Medical University, No. 91, Hsueh-Shih Rd., Taichung 40402, Taiwan.
| | - Guan-Yu Zhuo
- Institute of New Drug Development, China Medical University, No. 91, Hsueh-Shih Rd., Taichung 40402, Taiwan.
- Integrative Stem Cell Center, China Medical University Hospital, No. 2, Yude Rd., Taichung 40447, Taiwan.
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Mallakpour S, Behranvand V. Sono-assisted preparation of bio-nanocomposite for removal of Pb 2+ ions: Study of morphology, thermal and wettability properties. ULTRASONICS SONOCHEMISTRY 2017; 39:872-882. [PMID: 28733018 DOI: 10.1016/j.ultsonch.2017.06.015] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/21/2017] [Revised: 06/18/2017] [Accepted: 06/19/2017] [Indexed: 06/07/2023]
Abstract
Multi-walled carbon nanotubes (MWCNT) loaded poly(ethylene terephthalate) (PET) composites, with different CNT contents, were fabricated through an ultrasound assisted method as a fast and green way. Then, the obtained composites were fully characterized via FT-IR, UV-Vis, XRD, TGA, FE-SEM and TEM, etc. For this purpose, PET bottle was recycled and applied as matrix of nanocomposites (NC)s. Then, we dispersed the covalent functionalization of MWCNTs with a protein dispersant and obtained a powder of protein-functionalized CNTs. Bio-functionalized MWCNTs showed higher Pb2+ removal efficiency compared to MWCNT-COOH as ascertained via batch equilibrium adsorption experiments. Also, the results indicated the novel NCs presents a high affinity for Pb2+ heavy metal owing to the presence of several good sites. The contact angle results indicated that the addition of MWCNT-BSA increased significantly the contact angle compared to the pure PET. It was concluded that inflame retarding feature of NC was higher than pure polymer.
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Affiliation(s)
- Shadpour Mallakpour
- Organic Polymer Chemistry Research Laboratory, Department of Chemistry, Isfahan University of Technology, Isfahan 84156-83111, Islamic Republic of Iran; Nanotechnology and Advanced Materials Institute, Isfahan University of Technology, Isfahan 84156-83111, Islamic Republic of Iran.
| | - Vajiheh Behranvand
- Organic Polymer Chemistry Research Laboratory, Department of Chemistry, Isfahan University of Technology, Isfahan 84156-83111, Islamic Republic of Iran
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Hemasa AL, Naumovski N, Maher WA, Ghanem A. Application of Carbon Nanotubes in Chiral and Achiral Separations of Pharmaceuticals, Biologics and Chemicals. NANOMATERIALS 2017; 7:nano7070186. [PMID: 28718832 PMCID: PMC5535252 DOI: 10.3390/nano7070186] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/13/2017] [Revised: 07/04/2017] [Accepted: 07/06/2017] [Indexed: 12/23/2022]
Abstract
Carbon nanotubes (CNTs) possess unique mechanical, physical, electrical and absorbability properties coupled with their nanometer dimensional scale that renders them extremely valuable for applications in many fields including nanotechnology and chromatographic separation. The aim of this review is to provide an updated overview about the applications of CNTs in chiral and achiral separations of pharmaceuticals, biologics and chemicals. Chiral single-walled carbon nanotubes (SWCNTs) and multi-walled carbon nanotubes (MWCNTs) have been directly applied for the enantioseparation of pharmaceuticals and biologicals by using them as stationary or pseudostationary phases in chromatographic separation techniques such as high-performance liquid chromatography (HPLC), capillary electrophoresis (CE) and gas chromatography (GC). Achiral MWCNTs have been used for achiral separations as efficient sorbent objects in solid-phase extraction techniques of biochemicals and drugs. Achiral SWCNTs have been applied in achiral separation of biological samples. Achiral SWCNTs and MWCNTs have been also successfully used to separate achiral mixtures of pharmaceuticals and chemicals. Collectively, functionalized CNTs have been indirectly applied in separation science by enhancing the enantioseparation of different chiral selectors whereas non-functionalized CNTs have shown efficient capabilities for chiral separations by using techniques such as encapsulation or immobilization in polymer monolithic columns.
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Affiliation(s)
- Ayman L Hemasa
- Chirality Program, Biomedical Science, University of Canberra, Bruce, Australian Capital Territory (ACT) 2617, Australia.
| | - Nenad Naumovski
- Collaborative Research in Bioactives and Biomarkers Group (CRIBB), University of Canberra, Bruce, Australian Capital Territory (ACT) 2617, Australia.
| | - William A Maher
- Ecochemistry Laboratory, Institute for Applied Ecology, University of Canberra, Bruce, Australian Capital Territory (ACT) 2617, Australia.
| | - Ashraf Ghanem
- Chirality Program, Biomedical Science, University of Canberra, Bruce, Australian Capital Territory (ACT) 2617, Australia.
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12
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Chen J, Liang RP, Wu LL, Qiu JD. One-step preparation and application of mussel-inspired poly(norepinephrine)-coated polydimethylsiloxane microchip for separation of chiral compounds. Electrophoresis 2016; 37:1676-84. [PMID: 26970233 DOI: 10.1002/elps.201600054] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2016] [Revised: 03/01/2016] [Accepted: 03/02/2016] [Indexed: 01/11/2023]
Abstract
In this paper, using the self-polymerization of norepinephrine (NE) and its favorable film-forming property, a simple and green preparation approach was developed to modify a PDMS channel for enantioseparation of chiral compounds. After the PDMS microchip was filled with NE solution, poly(norepinephrine) (PNE) film was gradually formed and deposited on the inner wall of microchannel as permanent coating via the oxidation of NE by the oxygen dissolved in the solution. Due to possessing plentiful catechol and amine functional groups, the PNE-coated PDMS microchip exhibited much better wettability, more stable and suppressed EOF, and less nonspecific adsorption. The water contact angle and EOF of PNE-coated PDMS substrate were measured to be 13° and 1.68 × 10(-4) cm(2) V(-1) s(-1) , compared to those of 108° and 2.24 × 10(-4) cm(2) V(-1) s(-1) from the untreated one, respectively. Different kinds of chiral compounds, such as amino acid enantiomer, drug enantiomer, and peptide enantiomer were efficiently separated utilizing a separation length of 37 mm coupled with in-column amperometric detection on the PNE-coated PDMS microchips. This facile mussel-inspired PNE-based microchip system exhibited strong recognition ability, high-performance, admirable reproducibility, and stability, which may have potential use in the complex biological analysis.
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Affiliation(s)
- Juan Chen
- Department of Chemistry, Nanchang University, Nanchang, P. R. China
| | - Ru-Ping Liang
- Department of Chemistry, Nanchang University, Nanchang, P. R. China
| | - Lu-Lu Wu
- Department of Chemistry, Nanchang University, Nanchang, P. R. China
| | - Jian-Ding Qiu
- Department of Chemistry, Nanchang University, Nanchang, P. R. China
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14
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A norepinephrine coated magnetic molecularly imprinted polymer for simultaneous multiple chiral recognition. J Chromatogr A 2015. [DOI: 10.1016/j.chroma.2015.07.052] [Citation(s) in RCA: 50] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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Wang XN, Liang RP, Meng XY, Qiu JD. One-step synthesis of mussel-inspired molecularly imprinted magnetic polymer as stationary phase for chip-based open tubular capillary electrochromatography enantioseparation. J Chromatogr A 2014; 1362:301-8. [DOI: 10.1016/j.chroma.2014.08.044] [Citation(s) in RCA: 49] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/22/2014] [Revised: 08/08/2014] [Accepted: 08/13/2014] [Indexed: 11/26/2022]
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16
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Liang RP, Wang XN, Wang L, Qiu JD. Enantiomeric separation by microchip electrophoresis using bovine serum albumin conjugated magnetic core-shell Fe3 O4 @Au nanocomposites as stationary phase. Electrophoresis 2014; 35:2824-32. [PMID: 25042461 DOI: 10.1002/elps.201400264] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/27/2014] [Revised: 07/06/2014] [Accepted: 07/10/2014] [Indexed: 11/07/2022]
Abstract
In this work, a novel enantioselective MCE was developed employing BSA-conjugated Fe3 O4 @Au nanoparticles (Fe3 O4 @Au NPs) as stationary phase. Fe3 O4 @Au NPs with high magnetic responsively, excellent solubility, and high dispersibility in water were prepared through a sonochemical synthesis strategy. BSA was then immobilized onto the Fe3 O4 @Au NPs surfaces through the well-developed interaction between Au NPs and amine groups of BSA to form Fe3 O4 @Au NPs-BSA conjugates, which were then locally packed into PDMS microchannels with the help of magnets. The resultant Fe3 O4 @Au NPs-BSA conjugates not only have the magnetism of Fe3 O4 NPs that make them easily manipulated by an external magnetic field, but also have the larger surface and excellent biocompatibility of Au shell, which can incorporate much more biomolecules and well maintain their biological activity. In addition, the successful BSA decorations endowed Fe3 O4 @Au NPs-BSA conjugates with pH-tunable water solubility related to the pI of BSA (pI 4.7) and led to enhanced stability against high ionic strength. Compared with the native PDMS microchannel, the modified surfaces exhibited more stable and suppressed electroosmotic mobility, and less nonspecific adsorption toward analytes. Successful separation of chiral amino acids (tryptophan and threonine) and ofloxacin enantiomers demonstrate that the constructed MCE columns own ideal enantioselectivity. The results are expected to open up a new possibility for high-throughput screening of enantiomers with protein targets as well as a new application of magnetic NPs.
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Affiliation(s)
- Ru-Ping Liang
- Department of Chemistry, Nanchang University, Nanchang, P.R. China
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Farhadian N, Sharifi A, Lashgari E. Selective adsorption of metoprolol enantiomers using 2-hydroxypropyl-β-cyclodextrin cross-linked multiwalled carbon nanotube. Biomed Chromatogr 2014; 29:366-72. [DOI: 10.1002/bmc.3285] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2013] [Revised: 05/25/2014] [Accepted: 06/03/2014] [Indexed: 11/11/2022]
Affiliation(s)
- Nafiseh Farhadian
- Chemical Engineering Department, Faculty of Engineering; Ferdowsi University of Mashhad; Mashhad Iran
| | - Arezoo Sharifi
- Chemical Engineering Department, Faculty of Engineering; Ferdowsi University of Mashhad; Mashhad Iran
| | - Elmira Lashgari
- Chemical Engineering Department, Faculty of Engineering; Ferdowsi University of Mashhad; Mashhad Iran
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Alhassen H, Antony V, Ghanem A, Yajadda MMA, Han ZJ, Ostrikov KK. Organic/Hybrid Nanoparticles and Single-Walled Carbon Nanotubes: Preparation Methods and Chiral Applications. Chirality 2014; 26:683-91. [DOI: 10.1002/chir.22321] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/10/2013] [Accepted: 02/03/2014] [Indexed: 11/06/2022]
Affiliation(s)
- Haysem Alhassen
- Chirality Program, Biomedical Science Discipline, Faculty of ESTEM; University of Canberra; Australian Capital Territory (ACT) Australia
| | - Vijy Antony
- Chirality Program, Biomedical Science Discipline, Faculty of ESTEM; University of Canberra; Australian Capital Territory (ACT) Australia
| | - Ashraf Ghanem
- Chirality Program, Biomedical Science Discipline, Faculty of ESTEM; University of Canberra; Australian Capital Territory (ACT) Australia
| | - Mir Massoud Aghili Yajadda
- Plasma Nanoscience Centre Australia (PNCA); CSIRO Materials Science and Engineering; Lindfield New South Wales Australia
| | - Zhao Jun Han
- Plasma Nanoscience Centre Australia (PNCA); CSIRO Materials Science and Engineering; Lindfield New South Wales Australia
| | - Kostya Ken Ostrikov
- Plasma Nanoscience Centre Australia (PNCA); CSIRO Materials Science and Engineering; Lindfield New South Wales Australia
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19
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Pan Y, Karns K, Herr AE. Microfluidic electrophoretic mobility shift assays for quantitative biochemical analysis. Electrophoresis 2014; 35:2078-90. [PMID: 24591076 DOI: 10.1002/elps.201300500] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/13/2013] [Revised: 01/31/2014] [Accepted: 02/09/2014] [Indexed: 02/02/2023]
Abstract
Electrophoretic mobility shift assays (EMSAs) play an important role in analytical chemistry, quantitative bioscience, and point-of-care diagnostics. Emerging microfluidic lab-on-a-chip technologies bring high throughput and multiplexed analysis to affinity-based electrophoretic separations, greatly advancing the performance of traditional EMSAs. This review elaborates on the relevant theoretical basis for EMSAs, surveys microfluidic-based EMSA applications in molecular conformation analyses, immunoassays, affinity assays and genomics, and outlines challenges and potential future improvements needed from this powerful assay.
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Affiliation(s)
- Yuchen Pan
- Graduate Program in Bioengineering, University of California San Francisco and University of California Berkeley, CA, USA
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Wang Y, Ouyang J, Baeyens WRG, Delanghe JR. Use of nanomaterials in capillary and microchip electrophoresis. Expert Rev Proteomics 2014; 4:287-98. [PMID: 17425463 DOI: 10.1586/14789450.4.2.287] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
Abstract
This review gives an overview of different separation strategies with nanomaterials and their use in capillary electrophoresis (CE) and capillary electrochromatography, as well as in microchip electrophoresis, including metal and metal oxide nanoparticles, carbon nanotubes, fullerene and polymer nanoparticles, as well as silica nanoparticles. The paper highlights the new developments and innovative applications of nanoparticles as pseudostationary phases or immobilized on the capillary surface for CE separation. The separation and characterization of target nanoparticles with different sizes by CE are reviewed likewise.
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Affiliation(s)
- Yanqing Wang
- Beijing Normal University, College of Chemistry, Beijing Normal University, Beijing, P. R. China.
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Liang RP, Wang XN, Liu CM, Meng XY, Qiu JD. Facile preparation of protein stationary phase based on polydopamine/graphene oxide platform for chip-based open tubular capillary electrochromatography enantioseparation. J Chromatogr A 2014; 1323:135-42. [DOI: 10.1016/j.chroma.2013.11.048] [Citation(s) in RCA: 77] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/10/2013] [Revised: 11/14/2013] [Accepted: 11/26/2013] [Indexed: 11/30/2022]
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22
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Bhattacharyya T, Roy S, Dasgupta AK. Chirality sensitive binding of tryptophan enantiomers with pristine single wall carbon nanotubes. Phys Chem Chem Phys 2014; 16:14651-5. [DOI: 10.1039/c4cp00271g] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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23
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Hua X, Du Y, Chen J, Xu G, Yu T, Zhang Q. Evaluation of the enantioselectivity of carbon nanoparticles-modified chiral separation systems using dextrin as chiral selector by capillary electrokinetic chromatography. Electrophoresis 2013; 34:1901-7. [DOI: 10.1002/elps.201200627] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/21/2012] [Revised: 03/29/2013] [Accepted: 03/29/2013] [Indexed: 11/07/2022]
Affiliation(s)
- Xiaoyi Hua
- Department of Analytical Chemistry; China Pharmaceutical University; Nanjing; P. R. China
| | | | - Jiaquan Chen
- Department of Analytical Chemistry; China Pharmaceutical University; Nanjing; P. R. China
| | - Guangfu Xu
- Department of Analytical Chemistry; China Pharmaceutical University; Nanjing; P. R. China
| | - Tao Yu
- Department of Analytical Chemistry; China Pharmaceutical University; Nanjing; P. R. China
| | - Qi Zhang
- Department of Analytical Chemistry; China Pharmaceutical University; Nanjing; P. R. China
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Speltini A, Merli D, Profumo A. Analytical application of carbon nanotubes, fullerenes and nanodiamonds in nanomaterials-based chromatographic stationary phases: A review. Anal Chim Acta 2013; 783:1-16. [DOI: 10.1016/j.aca.2013.03.041] [Citation(s) in RCA: 73] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2012] [Revised: 03/08/2013] [Accepted: 03/17/2013] [Indexed: 01/22/2023]
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26
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A versatile polydopamine platform for facile preparation of protein stationary phase for chip-based open tubular capillary electrochromatography enantioseparation. J Chromatogr A 2013; 1294:145-51. [PMID: 23643186 DOI: 10.1016/j.chroma.2013.04.022] [Citation(s) in RCA: 46] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2013] [Revised: 04/08/2013] [Accepted: 04/11/2013] [Indexed: 11/20/2022]
Abstract
A novel, simple, and economical method for the preparation of chiral stationary phases for chip-based enantioselective open tubular capillary electrochromatography (OT-CEC) using polydopamine (PDA) coating as an adhesive layer was reported for the first time. After the poly(dimethylsiloxane) (PDMS) microfluidic chip was filled with dopamine (DA) solution, PDA film was gradually formed and deposited on the inner wall of microchannel as permanent coating via the oxidation of DA by the oxygen dissolved in the solution. Due to possessing plentiful catechol and amine functional groups, PDA coating can serve as a versatile multifunctional platform for further secondary reactions, leading to tailoring of the coatings for protein bioconjugation by the thiols and amines via Michael addition or Schiff base reactions. Bovine serum albumin (BSA), acting as a target protein, was then stably and homogeneously immobilized in the PDA-coated PDMS microchannel to fabricate a novel protein stationary phase. Compared with the native PDMS microchannels, the modified surfaces exhibited much better wettability, more stable and enhanced electroosmotic mobility, and less nonspecific adsorption. The water contact angle and electroosmotic flow of PDA/BSA-coated PDMS substrate were measured to be 44° and 2.83×10(-4)cm(2)V(-1)s(-1), compared to those of 112° and 2.10×10(-4)cm(2)V(-1)s(-1) from the untreated one, respectively. Under a mild condition, d- and l-tryptophan were efficiently separated with a resolution of 1.68 within 130s utilizing a separation length of 37mm coupled with in-column amperometric detection on the PDA/BSA-coated PDMS microchips. This present versatile platform, facile conjugation of biomolecules onto microchip surfaces via mussel adhesive protein inspired coatings, may offer new processing strategies to prepare a biomimetic surface design on microfluidic chips, which is promising in high-throughput and complex biological analysis.
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27
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Rocco A, Maruška A, Fanali S. Enantiomeric separations by means of nano-LC. J Sep Sci 2013; 36:421-44. [DOI: 10.1002/jssc.201200886] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/19/2012] [Revised: 10/24/2012] [Accepted: 10/26/2012] [Indexed: 11/05/2022]
Affiliation(s)
- Anna Rocco
- Department of Biochemistry and Biotechnologies; Vytautas Magnus University; Kaunas Lithuania
- Institute of Chemical Methodologies; Consiglio Nazionale delle Ricerche; Rome Italy
| | - Audrius Maruška
- Department of Biochemistry and Biotechnologies; Vytautas Magnus University; Kaunas Lithuania
| | - Salvatore Fanali
- Institute of Chemical Methodologies; Consiglio Nazionale delle Ricerche; Rome Italy
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28
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Liang RP, Liu CM, Meng XY, Wang JW, Qiu JD. A novel open-tubular capillary electrochromatography using β-cyclodextrin functionalized graphene oxide-magnetic nanocomposites as tunable stationary phase. J Chromatogr A 2012; 1266:95-102. [DOI: 10.1016/j.chroma.2012.09.101] [Citation(s) in RCA: 94] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/12/2012] [Revised: 09/25/2012] [Accepted: 09/28/2012] [Indexed: 01/27/2023]
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29
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Chang C, Wang X, Bai Y, Liu H. Applications of nanomaterials in enantioseparation and related techniques. Trends Analyt Chem 2012. [DOI: 10.1016/j.trac.2012.07.002] [Citation(s) in RCA: 63] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
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30
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Krenkova J, Foret F, Svec F. Less common applications of monoliths: V. Monolithic scaffolds modified with nanostructures for chromatographic separations and tissue engineering. J Sep Sci 2012; 35:1266-83. [DOI: 10.1002/jssc.201100956] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Affiliation(s)
- Jana Krenkova
- Institute of Analytical Chemistry of the ASCR; Brno; Czech Republic
| | - Frantisek Foret
- Institute of Analytical Chemistry of the ASCR; Brno; Czech Republic
| | - Frantisek Svec
- The Molecular Foundry; E. O. Lawrence Berkeley National Laboratory; Berkeley; California; USA
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31
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Carbon nanotubes in capillary electrophoresis, capillary electrochromatography and microchip electrophoresis. OPEN CHEM 2012. [DOI: 10.2478/s11532-012-0014-5] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023] Open
Abstract
AbstractCarbon nanotubes are among the plethora of novel nanostructures developed since the 1980s. Nanotubes have attracted considerable interest by the scientific community thanks to their extraordinary physical and chemical properties. Research areas have flourished in recent years and now include the nano-electronic, (bio)sensor and analytical field along with many others. This review covers applications of carbon nanotubes in capillary electrophoresis, capillary electrochromatography and microchip electrophoresis. First, carbon nanotubes and a range of electrophoretic techniques are briefly introduced and key references are mentioned. Next, a comprehensive survey of achievements in the field is presented and critically assessed. The merits and downsides of carbon nanotube addition to the various capillary electrophoretic modes are addressed. The different schemes for fabricating electrochromatographic stationary phases based on carbon nanotubes are discussed. Finally, some future perspectives are offered.
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32
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Mogensen KB, Kutter JP. Carbon nanotube based stationary phases for microchip chromatography. LAB ON A CHIP 2012; 12:1951-1958. [PMID: 22566131 DOI: 10.1039/c2lc40102a] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/31/2023]
Abstract
The objective of this article is to provide an overview and critical evaluation of the use of carbon nanotubes and related carbon-based nanomaterials for microchip chromatography. The unique properties of carbon nanotubes, such as a very high surface area and intriguing adsorptive behaviour, have already been demonstrated in more classical formats, for improved separation performance in gas and liquid chromatography, and for unique applications in solid phase extraction. Carbon nanotubes are now also entering the field of microfluidics, where there is a large potential to be able to provide integrated, tailor-made nanotube columns by means of catalytic growth of the nanotubes inside the fluidic channels. An evaluation of the different implementations of carbon nanotubes and related carbon-based nanomaterials for microfluidic chromatography devices is given in terms of separation performance and ease of fabrication.
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Affiliation(s)
- Klaus B Mogensen
- Department of Micro- and Nanotechnology, Technical University of Denmark, DK-2800 Kgs. Lyngby, Denmark.
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33
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Li Y, Xu L, Chen T, Liu X, Xu Z, Zhang H. Carbon nanoparticles from corn stalk soot and its novel application as stationary phase of hydrophilic interaction chromatography and per aqueous liquid chromatography. Anal Chim Acta 2012; 726:102-8. [PMID: 22541020 DOI: 10.1016/j.aca.2012.03.032] [Citation(s) in RCA: 41] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/28/2011] [Revised: 02/17/2012] [Accepted: 03/11/2012] [Indexed: 11/28/2022]
Abstract
Carbon nanoparticles (CNPs) (6-18 nm in size) were prepared by refluxing corn stalk soot in nitric acid. The obtained acid-oxidized CNPs are soluble in water due to the existence of carboxylic and hydroxyl groups. (13)C NMR measurement shows the CNPs are mainly of sp(2) and sp(3) carbon structure different from CNPs obtained from candle soot and natural gas soot. Furthermore, these CNPs exhibit unique photoluminescence properties. Interestingly, the CNPs might be exploited to immobilize on the surface of porous silica particles as chromatographic stationary phase. The resultant packing material was evaluated by high-performance liquid chromatography, indicating that the new stationary phase could be used in hydrophilic interaction liquid chromatography (HILIC) and per aqueous liquid chromatography (PALC) modes. The separation of five nucleosides, four sulfa compounds and safflower injection was achieved by using the new column in the HILIC and PALC modes, respectively.
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Affiliation(s)
- Yuanyuan Li
- Key Laboratory of Nonferrous Metal Chemistry and Resources Utilization of Gansu Province, Lanzhou University, China
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34
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Aqel A, Yusuf K, Al-Othman ZA, Badjah-Hadj-Ahmed AY, Alwarthan AA. Effect of multi-walled carbon nanotubes incorporation into benzyl methacrylate monolithic columns in capillary liquid chromatography. Analyst 2012; 137:4309-17. [DOI: 10.1039/c2an35518c] [Citation(s) in RCA: 44] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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35
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Huang Y, Shi M, Zhao S, Liang H. Trace analysis of d-tyrosine in biological samples by microchip electrophoresis with laser induced fluorescence detection. J Chromatogr B Analyt Technol Biomed Life Sci 2011; 879:3203-7. [DOI: 10.1016/j.jchromb.2011.01.033] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2010] [Revised: 01/23/2011] [Accepted: 01/27/2011] [Indexed: 01/09/2023]
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36
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Huang B, Huang C, Liu P, Wang F, Na N, Ouyang J. Fast haptoglobin phenotyping based on microchip electrophoresis. Talanta 2011; 85:333-8. [DOI: 10.1016/j.talanta.2011.03.066] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/25/2010] [Revised: 03/23/2011] [Accepted: 03/25/2011] [Indexed: 01/21/2023]
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37
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Li M, Liu X, Jiang F, Guo L, Yang L. Enantioselective open-tubular capillary electrochromatography using cyclodextrin-modified gold nanoparticles as stationary phase. J Chromatogr A 2011; 1218:3725-9. [DOI: 10.1016/j.chroma.2011.04.045] [Citation(s) in RCA: 71] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2011] [Revised: 04/12/2011] [Accepted: 04/17/2011] [Indexed: 10/18/2022]
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38
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Yu J, Huang D, Huang K, Hong Y. Preparation of Hydroxypropyl-β-cyclodextrin Cross-linked Multi-walled Carbon Nanotubes and Their Application in Enantioseparation of Clenbuterol. CHINESE J CHEM 2011. [DOI: 10.1002/cjoc.201190185] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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39
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Lu J, Ye F, Zhang A, Wei Z, Peng Y, Zhao S. Preparation and characterization of silica monolith modified with bovine serum albumin-gold nanoparticles conjugates and its use as chiral stationary phases for capillary electrochromatography. J Sep Sci 2011; 34:2329-36. [DOI: 10.1002/jssc.201100102] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2011] [Revised: 03/18/2011] [Accepted: 03/18/2011] [Indexed: 11/08/2022]
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40
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Nagl S, Schulze P, Ohla S, Beyreiss R, Gitlin L, Belder D. Microfluidic chips for chirality exploration. Anal Chem 2011; 83:3232-8. [DOI: 10.1021/ac200150w] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
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41
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Duan AH, Xie SM, Yuan LM. Nanoparticles as stationary and pseudo-station+ary phases in chromatographic and electrochromatographic separations. Trends Analyt Chem 2011. [DOI: 10.1016/j.trac.2011.01.007] [Citation(s) in RCA: 57] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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42
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Chen JL, Lu TL, Lin YC. Multi-walled carbon nanotube composites with polyacrylate prepared for open-tubular capillary electrochromatography. Electrophoresis 2010; 31:3217-26. [DOI: 10.1002/elps.201000226] [Citation(s) in RCA: 66] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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43
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Kitagawa F, Kubota K, Sueyoshi K, Otsuka K. One-step preparation of amino-PEG modified poly(methyl methacrylate) microchips for electrophoretic separation of biomolecules. J Pharm Biomed Anal 2010; 53:1272-7. [PMID: 20678876 DOI: 10.1016/j.jpba.2010.07.008] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/29/2010] [Revised: 06/29/2010] [Accepted: 07/03/2010] [Indexed: 12/26/2022]
Abstract
A simple method for a chemical surface modification of poly(methyl methacrylate) (PMMA) microchips with amino-poly(ethyleneglycol) (PEG-NH(2)) by nucleophilic addition-elimination reaction was developed to improve the separation efficiency and analytical reproducibility in a microchip electrophoresis (MCE) analysis of biomolecules such as proteins and enantiomers. In our procedure, the PEG chains were robustly immobilized only by introducing an aqueous solution of PEG-NH(2) into the PMMA microchannel. The electroosmotic mobilities on the modified chips remained almost constant during 35 days with 37 runs without any recoating. The PEG-NH(2) modified chip provided a fast, reproducible, efficient MCE separation of proteins with a wide variety of isoelectric points within 15s. Furthermore, the application of the modified chip to affinity electrophoresis using bovine serum albumin gave a good chiral separation of amino acids.
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Affiliation(s)
- Fumihiko Kitagawa
- Department of Material Chemistry, Graduate School of Engineering, Kyoto University, Katsura, Nishikyo-ku, Kyoto 615-8510, Japan.
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44
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Wang J, Huang W, Li L, Cheng J. [Microchip electrochromatography: the latest developments and applications]. Se Pu 2010; 28:264-72. [PMID: 20549978 DOI: 10.3724/sp.j.1123.2010.00264] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022] Open
Abstract
This review summarizes recent developments and applications of microchip electrochromatography (microCEC) mainly in the past five years between 2005 and 2009 with a focus on column technologies. In addition, some new improvements in the chip design and fabrication, sample preconcentration, electroosmotic flow control as well as mechanisms that govern electrochromatographic separation are described and reviewed. The features and limitations of several practical aspects of their applications are highlighted.
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Affiliation(s)
- Junhu Wang
- School of Pharmacy and Department of Chemistry, University of Wisconsin-Madison, Madison, WI 53705, USA.
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45
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Jiménez-Soto JM, Moliner-Martínez Y, Cárdenas S, Valcárcel M. Evaluation of the performance of single-walled carbon nanohorns in capillary electrophoresis. Electrophoresis 2010; 31:1681-8. [DOI: 10.1002/elps.200900628] [Citation(s) in RCA: 88] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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46
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Mikus P, Maráková K. Advanced CE for chiral analysis of drugs, metabolites, and biomarkers in biological samples. Electrophoresis 2010; 30:2773-802. [PMID: 19653234 DOI: 10.1002/elps.200900173] [Citation(s) in RCA: 74] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Abstract
An analysis of recent trends indicates that CE can show real advantages over chromatographic methods in ultratrace enantioselective determination of biologically active compounds in complex biological matrices. It is due to high separation efficiency and many applicable in-capillary electromigration effects in CE (countercurrent migration, stacking effects) enhancing significantly (enantio)separability and enabling effective sample preparation (preconcentration, purification, analyte derivatization). Other possible on-line combinations of CE, such as column coupled CE-CE techniques and implementation of nonelectrophoretic techniques (extraction, membrane filtration, flow injection) into CE, offer additional approaches for highly effective sample preparation and separation. CE matured to a highly flexible and compatible technique enabling its hyphenation with powerful detection systems allowing extremely sensitive detection (e.g. LIF) and/or structural characterization of analytes (e.g. MS). Within the last decade, more as well as less conventional analytical on-line approaches have been effectively utilized in this field and their practical potentialities are demonstrated on many new application examples in this article. Here, three basic areas of (enantioselective) drug bioanalysis are highlighted and supported by a brief theoretical description of each individual approach in a compact review structure (to create integrated view on the topic), including (i) progressive enantioseparation approaches and new enantioselective agents, (ii) in-capillary sample preparation (preconcentration, purification, derivatization), and (iii) detection possibilities related to enhanced sensitivity and structural characterization.
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Affiliation(s)
- Peter Mikus
- Department of Pharmaceutical Analysis and Nuclear Pharmacy, Faculty of Pharmacy, Comenius University, Bratislava, Slovak Republic.
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47
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Chen JL. Multi-wall carbon nanotubes bonding on silica-hydride surfaces for open-tubular capillary electrochromatography. J Chromatogr A 2010; 1217:715-21. [DOI: 10.1016/j.chroma.2009.12.018] [Citation(s) in RCA: 43] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/12/2009] [Revised: 12/01/2009] [Accepted: 12/02/2009] [Indexed: 10/20/2022]
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48
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Rapid analysis and sensitive detection of dl-tryptophan by using shorter capillary column coupled with deep-UV fluorescence detector. J Chromatogr B Analyt Technol Biomed Life Sci 2009; 877:3753-6. [DOI: 10.1016/j.jchromb.2009.09.010] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2009] [Revised: 09/11/2009] [Accepted: 09/12/2009] [Indexed: 11/23/2022]
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49
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Nagl S, Schulze P, Ludwig M, Belder D. Progress in microchip enantioseparations. Electrophoresis 2009; 30:2765-72. [DOI: 10.1002/elps.200900153] [Citation(s) in RCA: 37] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
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50
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Ikai T, Okamoto Y. Structure Control of Polysaccharide Derivatives for Efficient Separation of Enantiomers by Chromatography. Chem Rev 2009; 109:6077-101. [DOI: 10.1021/cr8005558] [Citation(s) in RCA: 347] [Impact Index Per Article: 23.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Affiliation(s)
- Tomoyuki Ikai
- EcoTopia Science Institute, Nagoya University, Furo-cho, Chikusa-ku, Nagoya 464-8603, Japan, and College of Material Science and Chemical Engineering, Harbin Engineering University, 145 Nantong St. Harbin 150001, P. R. China
| | - Yoshio Okamoto
- EcoTopia Science Institute, Nagoya University, Furo-cho, Chikusa-ku, Nagoya 464-8603, Japan, and College of Material Science and Chemical Engineering, Harbin Engineering University, 145 Nantong St. Harbin 150001, P. R. China
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