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Zhang L, Xiao J, Xu X, Li K, Li D, Li J. Functionalized Chiral Materials for Use in Chiral Sensors. Crit Rev Anal Chem 2024:1-20. [PMID: 39012839 DOI: 10.1080/10408347.2024.2376233] [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: 07/18/2024]
Abstract
Chirality represents a fundamental attribute within living systems and is a pervasive phenomenon in the natural world. The identification and analysis of chiral materials within natural environments and biological systems hold paramount importance in clinical, chemical, and biological sciences. Within chiral analysis, there is a burgeoning focus on developing chiral sensors exhibiting exceptional selectivity, sensitivity, and stability, marking it as a forefront area of research. In the past decade (2013-2023), approximately 1990 papers concerning the application of various chiral materials in chiral sensors have been published. Biological materials and nanomaterials have important applications in the development of chiral sensors, which accounting for 26.67% and 45.24% of the material-related applications in these sensors, respectively; moreover, the development of chiral nanomaterials is closely related to the development of portable and stable chiral sensors. Natural chiral materials, utilized as selective recognition units, are combined with carriers characterized by good physical and chemical properties through functionalization to form various functional chiral materials, which improve the recognition efficiency of chiral sensors. In this article, from the perspective of biological materials, polymer materials, nanomaterials, and other functional chiral materials, the applications of chiral sensors are summarized and the research prospects of chiral sensors are discussed.
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Affiliation(s)
- Lianming Zhang
- Guangxi Key Laboratory of Electrochemical and Magnetochemical Functional Materials, College of Chemistry and Bioengineering, Guilin University of Technology, Guilin, China
| | - Jiaxi Xiao
- Guangxi Key Laboratory of Electrochemical and Magnetochemical Functional Materials, College of Chemistry and Bioengineering, Guilin University of Technology, Guilin, China
| | - Xuemei Xu
- Guangxi Key Laboratory of Electrochemical and Magnetochemical Functional Materials, College of Chemistry and Bioengineering, Guilin University of Technology, Guilin, China
| | - Kaiting Li
- Guangxi Key Laboratory of Electrochemical and Magnetochemical Functional Materials, College of Chemistry and Bioengineering, Guilin University of Technology, Guilin, China
| | - Dan Li
- Guangxi Key Laboratory of Electrochemical and Magnetochemical Functional Materials, College of Chemistry and Bioengineering, Guilin University of Technology, Guilin, China
| | - Jianping Li
- Guangxi Key Laboratory of Electrochemical and Magnetochemical Functional Materials, College of Chemistry and Bioengineering, Guilin University of Technology, Guilin, China
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2
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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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3
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Singh SK, Gogoi P, Deb A, Gooh Pattader PS. Chiral resolution of racemic amines in µ-reactor-crystallizer. Chem Eng Sci 2022. [DOI: 10.1016/j.ces.2022.117686] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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4
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Hancu G, Papp LA, Tóth G, Kelemen H. The Use of Dual Cyclodextrin Chiral Selector Systems in the Enantioseparation of Pharmaceuticals by Capillary Electrophoresis: An Overview. Molecules 2021; 26:2261. [PMID: 33919692 PMCID: PMC8069766 DOI: 10.3390/molecules26082261] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2021] [Revised: 04/12/2021] [Accepted: 04/12/2021] [Indexed: 11/17/2022] Open
Abstract
Cyclodextrin (CD) derivatives are the most efficient and frequently used chiral selectors (CSs) in capillary electrophoresis (CE). There are situations when the use of a single CD as CS is not enough to obtain efficient chiral discrimination of the enantiomers; in these cases, sometimes this problem can be resolved using a dual CD system. The use of dual CD systems can often dramatically enhance enantioseparation selectivity and can be applied for the separation of many analytes of pharmaceutical interest for which enantioseparation by CE with another CS systems can be problematic. Usually in a dual CD system an anionic CD is used together with a neutral one, but there are situations when the use of a cationic CD with a neutral one or the use of two neutral CDs or even two ionized CDs can be an efficient solution. In the current review we present general aspects of the use of dual CD systems in the analysis of pharmaceutical substances. Several examples of applications of the use of dual CD systems in the analysis of pharmaceuticals are selected and discussed. Theoretical aspects regarding the separation of enantiomers through simultaneous interaction with the two CSs are also explained. Finally, advantages, disadvantages, potential and new direction in this chiral analysis field are highlighted.
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Affiliation(s)
- Gabriel Hancu
- Department of Pharmaceutical and Therapeutic Chemistry, Faculty of Pharmacy, University of Medicine, Pharmacy, Science and Technology “George Emil Palade” of Târgu Mureș, 540142 Târgu Mureș, Romania; (G.H.); (H.K.)
| | - Lajos Attila Papp
- Department of Pharmaceutical and Therapeutic Chemistry, Faculty of Pharmacy, University of Medicine, Pharmacy, Science and Technology “George Emil Palade” of Târgu Mureș, 540142 Târgu Mureș, Romania; (G.H.); (H.K.)
| | - Gergő Tóth
- Department of Pharmaceutical Chemistry, Semmelweis University, H-1092 Budapest, Hungary;
| | - Hajnal Kelemen
- Department of Pharmaceutical and Therapeutic Chemistry, Faculty of Pharmacy, University of Medicine, Pharmacy, Science and Technology “George Emil Palade” of Târgu Mureș, 540142 Târgu Mureș, Romania; (G.H.); (H.K.)
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5
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Lin FJ, Liao JJ, Ai BQ. Separation and alignment of chiral active particles in a rotational magnetic field. J Chem Phys 2020; 152:224903. [DOI: 10.1063/5.0007372] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Affiliation(s)
- Fu-jun Lin
- Guangdong Provincial Key Laboratory of Quantum Engineering and Quantum Materials, School of Physics and Telecommunication Engineering, South China Normal University, Guangzhou 510006, China
- School of Science, Jiangxi University of Science and Technology, Ganzhou 341000, China
| | - Jing-jing Liao
- Guangdong Provincial Key Laboratory of Quantum Engineering and Quantum Materials, School of Physics and Telecommunication Engineering, South China Normal University, Guangzhou 510006, China
- College of Applied Science, Jiangxi University of Science and Technology, Ganzhou 341000, China
| | - Bao-quan Ai
- Guangdong Provincial Key Laboratory of Quantum Engineering and Quantum Materials, School of Physics and Telecommunication Engineering, South China Normal University, Guangzhou 510006, China
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6
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Gensh KV, Gensh TS, Bazarnova NG. Chiral Supercritical Fluid Chromatography of 1,2-Aminoalcohols (Review). RUSSIAN JOURNAL OF PHYSICAL CHEMISTRY B 2020. [DOI: 10.1134/s1990793119070066] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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7
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Liu X, Li J, Zhang Q, Dirbeba MG. Separation of chiral enantiomers by optical force and torque induced by tightly focused vector polarized hollow beams. Phys Chem Chem Phys 2019; 21:15339-15345. [PMID: 31259980 DOI: 10.1039/c9cp02101a] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Enantioseparation is important for biology, chemistry and even pharmaceutical industries. We propose an approach for discriminating and separating chiral enantiomers by tightly focused vector polarized hollow beams, which possess a transverse spin angular momentum that can rotate the chiral particles along the transverse direction. We demonstrate the different optomechanical behaviours of the particles upon illumination with different vector polarized (azimuthally and radially) hollow beams by numerically calculating the optical force and spin torque. It is believed that this interesting approach may have potential applications in enantioseparation due to its simplicity and accessibility.
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Affiliation(s)
- Xingguang Liu
- Department of Physics, Harbin Institute of Technology, Harbin 150001, China.
| | - Junqing Li
- Department of Physics, Harbin Institute of Technology, Harbin 150001, China.
| | - Qiang Zhang
- Department of Physics, Harbin Institute of Technology, Harbin 150001, China.
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8
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Gu L, Chen Q, Li X, Meng C, Liu H. Amino acid modified carbon nanotubes with optimal pore size for chiral separation. MOLECULAR SIMULATION 2019. [DOI: 10.1080/08927022.2019.1630737] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Affiliation(s)
- Liangning Gu
- State Key Laboratory of Chemical Engineering and School of Chemistry & Molecular Engineering, East China University of Science and Technology, Shanghai, People’s Republic of China
| | - Qibin Chen
- State Key Laboratory of Chemical Engineering and School of Chemistry & Molecular Engineering, East China University of Science and Technology, Shanghai, People’s Republic of China
| | - Xiaoxiao Li
- State Key Laboratory of Chemical Engineering and School of Chemistry & Molecular Engineering, East China University of Science and Technology, Shanghai, People’s Republic of China
| | - Chenchen Meng
- State Key Laboratory of Chemical Engineering and School of Chemistry & Molecular Engineering, East China University of Science and Technology, Shanghai, People’s Republic of China
| | - Honglai Liu
- State Key Laboratory of Chemical Engineering and School of Chemistry & Molecular Engineering, East China University of Science and Technology, Shanghai, People’s Republic of China
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9
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Guselnikova O, Postnikov P, Trelin A, Švorčík V, Lyutakov O. Dual Mode Chip Enantioselective Express Discrimination of Chiral Amines via Wettability-Based Mobile Application and Portable Surface-Enhanced Raman Spectroscopy Measurements. ACS Sens 2019; 4:1032-1039. [PMID: 30945845 DOI: 10.1021/acssensors.9b00225] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Abstract
A dual-mode functional chip for chiral sensing based on mobile phone wettability measurements and portable surface-enhanced Raman spectroscopy (SERS) is reported. The plasmon-active regular gold grating surface was covalently grafted with chiral recognition moieties, l- or d-enantiomers of tartaric acid, making stereoselective discrimination of chiral amines possible. Chiral sensing of amines includes two modes of analysis, performed subsequently on the one chip surface with portable instruments (mobile phone equipped with a camera and developed application (app) Dropangle and a portable Raman spectrometer). First, the wettability changes, caused by enantioselective entrapping of chiral amines, are monitored and analyzed via our mobile phone app, allowing detection of the optical configuration and concentration of enantiomers with 1 order of magnitude accuracy. Second, SERS measurement on the same chip provides information about the chemical structure of entrapped amines and allows calculation of the enantiomeric excess with great accuracy. The applicability of the developed chip is demonstrated on a variety of chiral amines, including tyrosine, cysteine, dopamine (DOPA), and dextromethorphan in analytical solutions and in commercially available DOPA-containing drug. Moreover, we demonstrate that the chips could be regenerated and used repeatedly for at least five cycles.
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Affiliation(s)
- Olga Guselnikova
- Department of Solid State Engineering, University of Chemistry and Technology, 16628 Prague, Czech Republic
- Research School of Chemistry and Applied Biomedical Sciences, Tomsk Polytechnic University, Tomsk 634050, Russian Federation
| | - Pavel Postnikov
- Department of Solid State Engineering, University of Chemistry and Technology, 16628 Prague, Czech Republic
- Research School of Chemistry and Applied Biomedical Sciences, Tomsk Polytechnic University, Tomsk 634050, Russian Federation
| | - Andrii Trelin
- Department of Solid State Engineering, University of Chemistry and Technology, 16628 Prague, Czech Republic
| | - Vaclav Švorčík
- Department of Solid State Engineering, University of Chemistry and Technology, 16628 Prague, Czech Republic
| | - Oleksiy Lyutakov
- Department of Solid State Engineering, University of Chemistry and Technology, 16628 Prague, Czech Republic
- Research School of Chemistry and Applied Biomedical Sciences, Tomsk Polytechnic University, Tomsk 634050, Russian Federation
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10
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Zhou C, Ren Y, Han J, Xu Q, Guo R. Chiral Polyaniline Hollow Nanotwists toward Efficient Enantioselective Separation of Amino Acids. ACS NANO 2019; 13:3534-3544. [PMID: 30758941 DOI: 10.1021/acsnano.8b09784] [Citation(s) in RCA: 44] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
Controllable fabrication of complex chiral nanostructures of functional materials from achiral systems remains a great challenge. Herein, polyaniline (PANI) hollow nanotwists as complex chiral nanostructures have been prepared by chemical oxidation of aniline in an achiral HCl/isopropyl alcohol/water mixed solvent. The chiral oligoaniline twisted nanoribbons generated at the early reaction stage have been established to act as reactive sacrificial templates for inducing the growth of PANI hollow nanotwists. Single-handed PANI hollow nanotwists achieved by tuning the alcohol content in the solvent have been applied to separate several chiral amino acids from their racemic mixtures with high performance, indicating their high potential for enantioselective separation applications.
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11
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Fruehwirth SM, Meyer R, Hauser AW. Chiral Separation via Molecular Sieving: A Computational Screening of Suitable Functionalizations for Nanoporous Graphene. Chemphyschem 2018; 19:2331-2339. [PMID: 29863766 PMCID: PMC6175349 DOI: 10.1002/cphc.201800413] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/03/2018] [Indexed: 11/08/2022]
Abstract
In a recent study [Angew. Chem. Int. Ed., 2014, 53, 9957–9960] a new concept of chiral separation has been suggested, which is based on functionalized, nanoporous sheets of graphene. In this follow‐up article we discuss the underlying principle in greater detail and make suggestions for suitable pore functionalizations with respect to a selection of chiral prototype molecules. Considering drug molecules as future targets for a chiral separation via membranes, the necessary pore sizes represent a big challenge for standard methods of computational chemistry. Therefore, we test two common force fields (GAFF, CGenFF) as well as a semiempirical tight‐binding approach recently developed by the Grimme group (GFN‐xTB) against the computationally much more expensive density functional theory. We identify the GFN‐xTB method as the most suitable approach for future simulations of functionalized pores for the given purpose, as it is able to produce reaction pathways in very good agreement with density functional theory, even in cases where force fields tend to an extreme overestimation of barrier heights.
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Affiliation(s)
- Samuel M Fruehwirth
- Institute of Experimental Physics, Graz University of Technology, Petersgasse 16, A-8010, Graz, Austria
| | - Ralf Meyer
- Institute of Experimental Physics, Graz University of Technology, Petersgasse 16, A-8010, Graz, Austria
| | - Andreas W Hauser
- Institute of Experimental Physics, Graz University of Technology, Petersgasse 16, A-8010, Graz, Austria
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12
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Shen H, Du G, Liu K, Ye L, Xie S, Jiang L. Synthesis and evaluation of pseudopeptide chiral stationary phases for enantioselective resolution. J Chromatogr A 2017; 1521:53-62. [PMID: 28951050 DOI: 10.1016/j.chroma.2017.08.082] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2017] [Revised: 08/27/2017] [Accepted: 08/30/2017] [Indexed: 10/18/2022]
Abstract
Poly(2-oxazoline)s are regarded as bioinspired polymers due to their structural relation to polypeptides. In this work, a new kind of poly(2-oxazoline)s containing dipeptide segments in the side chains was synthesized through a bottom-up protocol, which involves ring-opening copolymerization of 2-(N-Boc-l-2-pyrrolidinyl)-2-oxazoline (PyOXBoc) with 2-(3-butenyl)-2-oxazoline (BuOX) followed by deprotection and amide coupling with N-protected L-proline. The resulting vinyl-functionalized polymers were subsequently immobilized onto mercaptopropylated silica bead matrices by means of thio-click chemistry and their potential as the chiral stationary phase (CSP) for high-performance liquid chromatography was preliminarily evaluated with a series of structurally different racemates. The results showed that this class of pseudopeptide CSPs is particularly adapted to the enantiomeric separation of 1,1'-bi-2-naphthol and acyloin compounds (such as benzoin) under normal-phase conditions. Moreover, an increase in the length of polymer main chains is beneficial to the enhancement of both enantioselectivity and resolution ability. The chiral discrimination of analytes by the polymeric selectors stems primarily from hydrogen bonding and π-π interactions as well as steric hindrance.
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Affiliation(s)
- Huifang Shen
- MOE Key Laboratory of Macromolecular Synthesis and Functionalization; Department of Polymer Science and Engineering, Zhejiang University, Hangzhou, 310027, China
| | - Ganhong Du
- MOE Key Laboratory of Macromolecular Synthesis and Functionalization; Department of Polymer Science and Engineering, Zhejiang University, Hangzhou, 310027, China
| | - Keyuan Liu
- MOE Key Laboratory of Macromolecular Synthesis and Functionalization; Department of Polymer Science and Engineering, Zhejiang University, Hangzhou, 310027, China
| | - Long Ye
- MOE Key Laboratory of Macromolecular Synthesis and Functionalization; Department of Polymer Science and Engineering, Zhejiang University, Hangzhou, 310027, China
| | - Shoulei Xie
- MOE Key Laboratory of Macromolecular Synthesis and Functionalization; Department of Polymer Science and Engineering, Zhejiang University, Hangzhou, 310027, China
| | - Liming Jiang
- MOE Key Laboratory of Macromolecular Synthesis and Functionalization; Department of Polymer Science and Engineering, Zhejiang University, Hangzhou, 310027, China.
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13
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Vovk IA, Baimuratov AS, Zhu W, Shalkovskiy AG, Baranov AV, Fedorov AV, Rukhlenko ID. Chiral nanoparticles in singular light fields. Sci Rep 2017; 7:45925. [PMID: 28378842 PMCID: PMC5381112 DOI: 10.1038/srep45925] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2016] [Accepted: 03/06/2017] [Indexed: 11/09/2022] Open
Abstract
The studying of how twisted light interacts with chiral matter on the nanoscale is paramount for tackling the challenging task of optomechanical separation of nanoparticle enantiomers, whose solution can revolutionize the entire pharmaceutical industry. Here we calculate optical forces and torques exerted on chiral nanoparticles by Laguerre-Gaussian beams carrying a topological charge. We show that regardless of the beam polarization, the nanoparticles are exposed to both chiral and achiral forces with nonzero reactive and dissipative components. Longitudinally polarized beams are found to produce chirality densities that can be 109 times higher than those of transversely polarized beams and that are comparable to the chirality densities of beams polarized circularly. Our results and analytical expressions prove useful in designing new strategies for mechanical separation of chiral nanoobjects with the help of highly focussed beams.
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Affiliation(s)
- Ilia A. Vovk
- Center of Information Optical Technologies, ITMO University, Saint Petersburg 197101, Russia
| | - Anvar S. Baimuratov
- Center of Information Optical Technologies, ITMO University, Saint Petersburg 197101, Russia
| | - Weiren Zhu
- Department of Electronic Engineering, Shanghai Jiao Tong University, Shanghai 200240, China
- Monash University, Clayton Campus, Victoria 3800, Australia
| | - Alexey G. Shalkovskiy
- Saint Petersburg State University, 7–9 University Embankment, Saint Petersburg 199034, Russia
- Institute for Design Problems in Microelectronics of Russian Academy of Sciences, Moscow 124365, Russia
| | - Alexander V. Baranov
- Center of Information Optical Technologies, ITMO University, Saint Petersburg 197101, Russia
| | - Anatoly V. Fedorov
- Center of Information Optical Technologies, ITMO University, Saint Petersburg 197101, Russia
| | - Ivan D. Rukhlenko
- Center of Information Optical Technologies, ITMO University, Saint Petersburg 197101, Russia
- Monash University, Clayton Campus, Victoria 3800, Australia
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14
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Rukhlenko ID, Tepliakov NV, Baimuratov AS, Andronaki SA, Gun’ko YK, Baranov AV, Fedorov AV. Completely Chiral Optical Force for Enantioseparation. Sci Rep 2016; 6:36884. [PMID: 27827437 PMCID: PMC5101807 DOI: 10.1038/srep36884] [Citation(s) in RCA: 50] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2016] [Accepted: 10/24/2016] [Indexed: 11/25/2022] Open
Abstract
Fast and reliable separation of enantiomers of chiral nanoparticles requires elimination of all the forces that are independent of the nanoparticle handedness and creation of a sufficiently strong force that either pushes different enantiomers in opposite directions or delays the diffusion of one of them with respect to the other. Here we show how to construct such a completely chiral optical force using two counterpropagating circularly polarized plane waves of opposite helicities. We then explore capabilities of the related enantioseparation method by analytically solving the problem of the force-induced diffusion of chiral nanoparticles in a confined region, and reveal that it results in exponential spatial dependencies of the quantities measuring the purity of chiral substances. The proposed concept of a completely chiral optical force can potentially advance enantioseparation and enantiopurification techniques for all kinds of chiral nanoparticles that strongly interact with light.
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Affiliation(s)
- Ivan D. Rukhlenko
- Center of Information Optical Technologies, ITMO University, Saint Petersburg 197101, Russia
- Monash University, Clayton Campus, Victoria 3800, Australia
| | - Nikita V. Tepliakov
- Center of Information Optical Technologies, ITMO University, Saint Petersburg 197101, Russia
| | - Anvar S. Baimuratov
- Center of Information Optical Technologies, ITMO University, Saint Petersburg 197101, Russia
| | - Semen A. Andronaki
- Center of Information Optical Technologies, ITMO University, Saint Petersburg 197101, Russia
| | - Yurii K. Gun’ko
- Center of Information Optical Technologies, ITMO University, Saint Petersburg 197101, Russia
- School of Chemistry and CRANN Institute, Trinity College, Dublin, Ireland
| | - Alexander V. Baranov
- Center of Information Optical Technologies, ITMO University, Saint Petersburg 197101, Russia
| | - Anatoly V. Fedorov
- Center of Information Optical Technologies, ITMO University, Saint Petersburg 197101, Russia
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15
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Bawazeer SS, Abdel-Megied AM, Bebawy LI. Enantiospecific HPLC and CE Methods for Separation and Determination of S-Darifenacin in Pharmaceutical Formulations. Chromatographia 2016. [DOI: 10.1007/s10337-016-3171-4] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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16
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Shcherbakova EG, Brega V, Minami T, Sheykhi S, James TD, Anzenbacher P. Toward Fluorescence‐Based High‐Throughput Screening for Enantiomeric Excess in Amines and Amino Acid Derivatives. Chemistry 2016; 22:10074-80. [DOI: 10.1002/chem.201601614] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/06/2016] [Indexed: 12/14/2022]
Affiliation(s)
| | - Valentina Brega
- Department of Chemistry Bowling Green State University Bowling Green OH 43403 USA
| | - Tsuyoshi Minami
- Institute of Industrial Science The University of Tokyo 4-6-1 Komaba, Meguro-ku Tokyo 153-8505 Japan
| | - Sara Sheykhi
- Department of Chemistry Bowling Green State University Bowling Green OH 43403 USA
| | - Tony D. James
- Department of Chemistry University of Bath Claverton Down Bath BA2 7AY UK
| | - Pavel Anzenbacher
- Department of Chemistry Bowling Green State University Bowling Green OH 43403 USA
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17
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Akdeniz A, Minami T, Watanabe S, Yokoyama M, Ema T, Anzenbacher P. Determination of enantiomeric excess of carboxylates by fluorescent macrocyclic sensors. Chem Sci 2016; 7:2016-2022. [PMID: 29899926 PMCID: PMC5968554 DOI: 10.1039/c5sc04235f] [Citation(s) in RCA: 58] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/06/2015] [Accepted: 12/09/2015] [Indexed: 12/15/2022] Open
Abstract
Chiral fluorescent chemosensors featuring macrocycles comprising BINOL auxiliary and an array of hydrogen bond donors were synthesized. To enhance fluorescence of the chemosensors, conjugated moieties were attached to the 3,3'-positions of the BINOL auxiliary. The resulting chemosensors recognize a number of carboxylates, namely, enantiomers of ibuprofen, ketoprofen, 2-phenylpropanoate, mandelate, and phenylalanine in a stereoselective fashion. Depending on the structure of the chemosensor, the presence of carboxylate yields fluorescence quenching or amplification. This information-rich signal can be used to determine the identity of the analyte including the sense of chirality. Quantitative experiments were performed aimed at analysis of enantiomeric excess of chiral carboxylates. The quantitative analysis of enantiomeric composition of ibuprofen, ketoprofen, and phenylalanine shows that the sensors correctly identify mixtures with varying enantiomeric excess and correctly predict the enantiomeric excess of unknown samples with error of prediction <1.6%.
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Affiliation(s)
- Ali Akdeniz
- Department of Chemistry and Center for Photochemical Sciences , Bowling Green State University , Bowling Green , Ohio 43403 , USA .
| | - Tsuyoshi Minami
- Department of Chemistry and Center for Photochemical Sciences , Bowling Green State University , Bowling Green , Ohio 43403 , USA .
| | - Sagiri Watanabe
- Division of Applied Chemistry , Graduate School of Natural Science and Technology , Okayama University , Tsushima , Okayama 700-8530 , Japan .
| | - Maki Yokoyama
- Division of Applied Chemistry , Graduate School of Natural Science and Technology , Okayama University , Tsushima , Okayama 700-8530 , Japan .
| | - Tadashi Ema
- Division of Applied Chemistry , Graduate School of Natural Science and Technology , Okayama University , Tsushima , Okayama 700-8530 , Japan .
| | - Pavel Anzenbacher
- Department of Chemistry and Center for Photochemical Sciences , Bowling Green State University , Bowling Green , Ohio 43403 , USA .
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18
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Cha E, Kim S, Lee KM, Kim HJ, Kim KH, Kwon OS, Park KD, Lee J. Relationship between chromatographic resolution and amide structure of chiral 2-hydroxy acids as O -(−)-menthoxycarbonylated diastereomeric derivatives for enantiomeric separation on achiral gas chromatography. J Chromatogr B Analyt Technol Biomed Life Sci 2016; 1012-1013:17-22. [DOI: 10.1016/j.jchromb.2016.01.010] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2015] [Revised: 01/04/2016] [Accepted: 01/06/2016] [Indexed: 11/26/2022]
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19
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Alremeithi RH, Meetani MA, Khalil SA. A validated gas chromatography mass spectrometry method for simultaneous determination of cathinone related drug enantiomers in urine and plasma. RSC Adv 2016. [DOI: 10.1039/c6ra10583a] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
A sensitive and selective method for detection and quantitation of 31 synthetic cathinones using GC-MS has been developed and validated. They were separated into their optical enantiomers after derivatization with L-TPC and nikethamide was used as IS.
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Affiliation(s)
- Rashed H. Alremeithi
- Department of Chemistry
- United Arab Emirates University
- Al-Ain
- United Arab Emirates
- General Department of Forensic Science and Criminology
| | - Mohammed A. Meetani
- Department of Chemistry
- United Arab Emirates University
- Al-Ain
- United Arab Emirates
| | - Saif. A. Khalil
- General Department of Forensic Science and Criminology
- Dubai Police
- Dubai
- United Arab Emirates
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Reiser S, Bolten D, Staudt R, Türk M. Adsorption of N2and CO2on Activated Carbon, AlO(OH) Nanoparticles, and AlO(OH) Hollow Spheres. Chem Eng Technol 2015. [DOI: 10.1002/ceat.201500387] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
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21
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22
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Shcherbakova EG, Minami T, Brega V, James TD, Anzenbacher P. Determination of enantiomeric excess in amine derivatives with molecular self-assemblies. Angew Chem Int Ed Engl 2015; 54:7130-3. [PMID: 25925816 DOI: 10.1002/anie.201501736] [Citation(s) in RCA: 86] [Impact Index Per Article: 9.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2015] [Indexed: 01/19/2023]
Abstract
We report the first fluorescence-based assay for the rapid determination of the ee value of amines, amino alcohols, and amino acid esters. The method uses the self-assembly of 2-formylphenylboronic acid with a chiral diol and a chiral amine or derivatives (of unknown chirality) to produce two diastereomeric iminoboronates that differ in their fluorescence intensity and polarization. The approach allows for the accurate determination of the ee value of chiral amines with errors of just 1-2%. We believe that this application of orthogonal dynamic covalent self-assembly in the determination of the enantioselectivity will lead to the development of high-throughput procedures for the determination of chirality.
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Affiliation(s)
- Elena G Shcherbakova
- Department of Chemistry, Bowling Green State University, Bowling Green, OH 43403 (USA)
| | - Tsuyoshi Minami
- Department of Chemistry, Bowling Green State University, Bowling Green, OH 43403 (USA)
| | - Valentina Brega
- Department of Chemistry, Bowling Green State University, Bowling Green, OH 43403 (USA)
| | - Tony D James
- Department of Chemistry, University of Bath, Claverton Down, Bath BA2 7AY (UK)
| | - Pavel Anzenbacher
- Department of Chemistry, Bowling Green State University, Bowling Green, OH 43403 (USA).
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23
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Shcherbakova EG, Minami T, Brega V, James TD, Anzenbacher P. Determination of Enantiomeric Excess in Amine Derivatives with Molecular Self-Assemblies. Angew Chem Int Ed Engl 2015. [DOI: 10.1002/ange.201501736] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
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24
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Marriott AS, António C, Thomas-Oates J. Application of Carbonaceous Materials in Separation Science. POROUS CARBON MATERIALS FROM SUSTAINABLE PRECURSORS 2015. [DOI: 10.1039/9781782622277-00103] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
Abstract
Porous carbons in the separation sciences occupy an important niche owing to their unique retention characteristics, chemical stability and the ability to control pore structure through template strategies. However, these same synthetic processes utilise oil-based carbonising resins and high temperature, energy-intensive pyrolysis steps to ensure the carbon product has pore-size regularity, minimal micropore content and homogeneous surface chemistry. This chapter will primarily focus on the development of porous carbons for application as chromatographic stationary phases. Discussion will cover the unique characteristics of the porous carbon retention mechanism and its application in separating a broad range of analyte classes. The chapter then moves on to describe the current disadvantages in the manufacture of commercially available carbon phase and then highlight recent efforts aimed at the development of alternative porous carbon stationary phases derived from sustainable carbon precursors.
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Affiliation(s)
| | - Carla António
- Plant Metabolomics Laboratory, Instituto de Tecnologia Química e Biológica António Xavier-Universidade Nova de Lisboa (ITQB-UNL) Av. República 2780-157 Oeiras Portugal
| | - Jane Thomas-Oates
- Department of Chemistry, University of York York YO10 5DD UK
- Centre of Excellence in Mass Spectrometry, University of York York YO10 5DD UK
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25
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Chen J, Du Y, Zhu F, Chen B, Zhang Q, Du S, Li P. Study of the enantioseparation capability of chiral dual system based on chondroitin sulfate C in CE. Electrophoresis 2015; 36:607-14. [DOI: 10.1002/elps.201300057] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2013] [Revised: 11/09/2014] [Accepted: 11/14/2014] [Indexed: 11/08/2022]
Affiliation(s)
- Jiaquan Chen
- Department of Analytical Chemistry; China Pharmaceutical University; Nanjing P. R. China
| | - Yingxiang Du
- Department of Analytical Chemistry; China Pharmaceutical University; Nanjing P. R. China
- Key Laboratory of Drug Quality Control and Pharmacovigilance (Ministry of Education); China Pharmaceutical University; Nanjing P. R. China
- State Key Laboratory of Natural Medicines; China Pharmaceutical University; Nanjing P. R. China
| | - Fenxia Zhu
- Department of Analytical Chemistry; China Pharmaceutical University; Nanjing P. R. China
- Key Laboratory of New Drug Delivery System of Chinese Meteria Medica; Jiangsu Provincial Academy of Chinese Medicine; Nanjing P. R. China
| | - Bin Chen
- Department of Pharmacy; Zhejiang Pharmaceutical College; Ningbo P. R. China
| | - Qi Zhang
- Department of Analytical Chemistry; China Pharmaceutical University; Nanjing P. R. China
| | - Shuaijing Du
- College of Chemistry and Molecular Engineering; Peking University; Beijing P. R. China
| | - Ping Li
- State Key Laboratory of Natural Medicines; China Pharmaceutical University; Nanjing P. R. China
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26
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Li W, Ding GS, Tang AN. Enantiomer separation of propranolol and tryptophan using bovine serum albumin functionalized silica nanoparticles as adsorbents. RSC Adv 2015. [DOI: 10.1039/c5ra17535f] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
The immobilization of popular chiral selectors on the surface of nanomaterials to prepare new chiral adsorbents for preparative chiral separation is a research hotspot in separation science nowadays.
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Affiliation(s)
- Wei Li
- Research Center for Analytical Sciences
- College of Chemistry
- Collaborative Innovation Center of Chemical Science and Engineering
- Nankai University
- Tianjin 300071
| | - Guo-Sheng Ding
- Tianjin Key Laboratory for Modern Drug Delivery & High-Efficiency
- School of Pharmaceutical Science and Technology
- Tianjin University
- Tianjin 300072
- P. R. China
| | - An-Na Tang
- Research Center for Analytical Sciences
- College of Chemistry
- Collaborative Innovation Center of Chemical Science and Engineering
- Nankai University
- Tianjin 300071
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27
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Whitcombe MJ, Kirsch N, Nicholls IA. Molecular imprinting science and technology: a survey of the literature for the years 2004-2011. J Mol Recognit 2014; 27:297-401. [PMID: 24700625 DOI: 10.1002/jmr.2347] [Citation(s) in RCA: 275] [Impact Index Per Article: 27.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/13/2013] [Revised: 10/28/2013] [Accepted: 12/01/2013] [Indexed: 12/11/2022]
Abstract
Herein, we present a survey of the literature covering the development of molecular imprinting science and technology over the years 2004-2011. In total, 3779 references to the original papers, reviews, edited volumes and monographs from this period are included, along with recently identified uncited materials from prior to 2004, which were omitted in the first instalment of this series covering the years 1930-2003. In the presentation of the assembled references, a section presenting reviews and monographs covering the area is followed by sections describing fundamental aspects of molecular imprinting including the development of novel polymer formats. Thereafter, literature describing efforts to apply these polymeric materials to a range of application areas is presented. Current trends and areas of rapid development are discussed.
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28
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Weiß JA, Mohr S, Schmid MG. Indirect Chiral Separation of New Recreational Drugs by Gas Chromatography-Mass Spectrometry Using Trifluoroacetyl-L-Prolyl Chloride as Chiral Derivatization Reagent. Chirality 2014; 27:211-5. [DOI: 10.1002/chir.22414] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/08/2014] [Accepted: 10/10/2014] [Indexed: 01/21/2023]
Affiliation(s)
- Jennifer A. Weiß
- Department of Pharmaceutical Chemistry, Institute of Pharmaceutical Sciences; Karl-Franzens University Graz; Graz Austria
| | - Stefan Mohr
- Research Center Pharmaceutical Engineering; Graz Austria
| | - Martin G. Schmid
- Department of Pharmaceutical Chemistry, Institute of Pharmaceutical Sciences; Karl-Franzens University Graz; Graz Austria
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29
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Zhang X, Luo F, Lou Z, Lu M, Chen Z. Simultaneous and enantioselective determination of cis-epoxiconazole and indoxacarb residues in various teas, tea infusion and soil samples by chiral high performance liquid chromatography coupled with tandem quadrupole-time-of-flight mass spectrometry. J Chromatogr A 2014; 1359:212-23. [DOI: 10.1016/j.chroma.2014.07.058] [Citation(s) in RCA: 40] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/02/2013] [Revised: 03/19/2014] [Accepted: 07/16/2014] [Indexed: 10/25/2022]
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30
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Hauser AW, Mardirossian N, Panetier JA, Head-Gordon M, Bell AT, Schwerdtfeger P. Funktionalisiertes Graphen als Türsteher für chirale Moleküle: ein alternatives Konzept zur Racematspaltung. Angew Chem Int Ed Engl 2014. [DOI: 10.1002/ange.201403145] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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31
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Hauser AW, Mardirossian N, Panetier JA, Head-Gordon M, Bell AT, Schwerdtfeger P. Functionalized Graphene as a Gatekeeper for Chiral Molecules: An Alternative Concept for Chiral Separation. Angew Chem Int Ed Engl 2014; 53:9957-60. [DOI: 10.1002/anie.201403145] [Citation(s) in RCA: 37] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2014] [Indexed: 11/09/2022]
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32
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Optofluidic sorting of material chirality by chiral light. Nat Commun 2014; 5:3577. [DOI: 10.1038/ncomms4577] [Citation(s) in RCA: 149] [Impact Index Per Article: 14.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/05/2014] [Accepted: 03/05/2014] [Indexed: 01/29/2023] Open
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33
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Supercritical fluid chromatography as a tool for enantioselective separation; A review. Anal Chim Acta 2014; 821:1-33. [DOI: 10.1016/j.aca.2014.02.036] [Citation(s) in RCA: 126] [Impact Index Per Article: 12.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2013] [Revised: 01/31/2014] [Accepted: 02/22/2014] [Indexed: 12/14/2022]
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34
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Bolten D, Staudt R, Türk M. Adsorption von CO 2und racemischen Wirkstoffen an nanoskaligen Trägern. CHEM-ING-TECH 2014. [DOI: 10.1002/cite.201300117] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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35
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Dubbeldam D, Calero S, Vlugt TJ. Exploring new methods and materials for enantioselective separations and catalysis. MOLECULAR SIMULATION 2014. [DOI: 10.1080/08927022.2013.829225] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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36
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Zhou J, Ai F, Zhou B, Tang J, Ng SC, Tang W. Hydroxyethylammonium monosubstituted cyclodextrin as chiral selector for capillary electrophoresis. Anal Chim Acta 2013; 800:95-102. [DOI: 10.1016/j.aca.2013.09.021] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2013] [Revised: 09/06/2013] [Accepted: 09/08/2013] [Indexed: 10/26/2022]
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37
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Yashima E, Iida H, Okamoto Y. Enantiomeric Differentiation by Synthetic Helical Polymers. Top Curr Chem (Cham) 2013; 340:41-72. [DOI: 10.1007/128_2013_439] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
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38
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Bucar F, Wube A, Schmid M. Natural product isolation – how to get from biological material to pure compounds. Nat Prod Rep 2013; 30:525-45. [DOI: 10.1039/c3np20106f] [Citation(s) in RCA: 229] [Impact Index Per Article: 20.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
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Meinhardt S, Smiatek J, Eichhorn R, Schmid F. Separation of chiral particles in micro- or nanofluidic channels. PHYSICAL REVIEW LETTERS 2012; 108:214504. [PMID: 23003268 DOI: 10.1103/physrevlett.108.214504] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/23/2011] [Indexed: 06/01/2023]
Abstract
We propose a method to separate enantiomers in microfluidic or nanofluidic channels. It requires flow profiles that break chiral symmetry and have regions with high local shear. Such profiles can be generated in channels confined by walls with different hydrodynamic boundary conditions (e.g., slip lengths). Because of a nonlinear hydrodynamic effect, particles with different chirality migrate at different speeds and can be separated. The mechanism is demonstrated by computer simulations. We investigate the influence of thermal fluctuations (i.e., the Péclet number) and show that the effect disappears in the linear response regime. The details of the microscopic flow are important and determine which volume forces are necessary to achieve separation.
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40
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Leung D, Kang SO, Anslyn EV. Rapid determination of enantiomeric excess: a focus on optical approaches. Chem Soc Rev 2012; 41:448-79. [DOI: 10.1039/c1cs15135e] [Citation(s) in RCA: 258] [Impact Index Per Article: 21.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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41
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Wu J, Liu P, Wang L, Tian H, Wang Q, Zhang S. Synthesis and application of clindamycin succinate as a novel chiral selector for capillary electrophoresis. J Sep Sci 2011; 34:2455-62. [DOI: 10.1002/jssc.201100228] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/12/2011] [Revised: 06/14/2011] [Accepted: 06/15/2011] [Indexed: 11/12/2022]
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42
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Tamura K, Sam NSM, Ikai T, Okamoto Y, Yashima E. Synthesis and Chiral Recognition Ability of a Poly(phenylenevinylene)-Encapsulated Amylose Derivative. BULLETIN OF THE CHEMICAL SOCIETY OF JAPAN 2011. [DOI: 10.1246/bcsj.20110074] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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43
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Tamura K, Miyabe T, Iida H, Yashima E. Separation of enantiomers on diastereomeric right- and left-handed helical poly(phenyl isocyanide)s bearing l-alanine pendants immobilized on silica gel by HPLC. Polym Chem 2011. [DOI: 10.1039/c0py00164c] [Citation(s) in RCA: 64] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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44
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45
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Hashim NH, Shafie S, Khan SJ. Enantiomeric fraction as an indicator of pharmaceutical biotransformation during wastewater treatment and in the environment--a review. ENVIRONMENTAL TECHNOLOGY 2010; 31:1349-1370. [PMID: 21121459 DOI: 10.1080/09593331003728022] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/30/2023]
Abstract
Enantioselective analysis of some pharmaceuticals during wastewater treatment has the potential to reveal significant insights regarding the effectiveness of biotransformation processes. Furthermore, enantioselective analysis of chiral pharmaceuticals in the aquatic environment may provide a useful historical record revealing the dominant source of (treated or untreated) wastewater contamination. This review of the recent scientific literature has identified only a handful of studies that have directly investigated these promising applications. However, a range of enantioselective analytical techniques are likely to be adaptable from those which have been developed within the pharmaceutical industry. These include direct enantioseparations of enantiomers on chiral stationary phases as well as indirect separations by achiral stationary phases after chiral derivatization to form pairs of physically distinguishable diastereomers. Further investigations of the patterns of enantiomeric fractionation of pharmaceuticals in wastewater and environmental samples will provide an increasingly solid understanding of the relationship between biotransformation processes and the often overlooked parameter of enantiomeric fraction.
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Affiliation(s)
- N H Hashim
- School of Civil and Environmental Engineering, University of New South Wales, Sydney, Australia
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46
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47
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Abstract
This review article addresses the developments and applications of capillary electromigration methods coupled on-line with MS for chiral analysis. The multiple enantiomeric applications of this hyphenated technology are covered including chiral analysis of drugs, food compounds, pesticides, natural metabolites, etc. in different matrices such as plasma, urine, medicines, foods, etc. This work intends to provide an updated overview (including works published till September 2009) on the principal chiral applications carried out by CZE-MS, CEC-MS and MEKC-MS, discussing their main advantages and drawbacks in all their different areas of application as well as their foreseeable development in the not too distant future.
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Affiliation(s)
- Carolina Simó
- Department of Food Analysis, Institute of Industrial Fermentations (CSIC), Madrid, Spain
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48
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Eichhorn R. Microfluidic sorting of stereoisomers. PHYSICAL REVIEW LETTERS 2010; 105:034502. [PMID: 20867767 DOI: 10.1103/physrevlett.105.034502] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/28/2010] [Indexed: 05/29/2023]
Abstract
Isomeric molecules that only differ in the spatial orientation of their constituents are called stereoisomers. We demonstrate that different stereoisomers are transported typically at different velocities in a fluid streaming through a straight microchannel. As the underlying mechanism, we identify a translation-rotation coupling in the motion of the molecules which is specific for the molecule structure. This effect can be exploited for the separation of stereoisomers, a task of immense importance in biotechnology and pharmaceutics.
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Affiliation(s)
- Ralf Eichhorn
- NORDITA, Roslagstullsbacken 23, 106 91 Stockholm, Sweden.
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49
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Pormsila W, Gong XY, Hauser PC. Determination of the enantiomers of α-hydroxy- and α-amino acids in capillary electrophoresis with contactless conductivity detection. Electrophoresis 2010; 31:2044-8. [DOI: 10.1002/elps.201000127] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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50
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