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Malinina Y, Yakimova N, Moskvin L, Tkach K, Kamentsev M, Kuchumova I. A Low-Cost, Simple Method for Isotopic Analysis of Enriched Boron Pharmaceutical Substances by Capillary Zone Electrophoresis with Indirect UV Detection. Chromatographia 2021. [DOI: 10.1007/s10337-020-03995-9] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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Guo N, Pottier F, Aupiais J, Alliot C, Montavon G, Champion J. Evidence for the Heaviest Expected Halide Species in Aqueous Solution, At–, by Electromobility Measurements. Inorg Chem 2018; 57:4926-4933. [DOI: 10.1021/acs.inorgchem.7b03003] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Ning Guo
- SUBATECH, UMR CNRS, 6457 IMT Atlantique/IN2P3/Université de Nantes, 4 rue Alfred Kastler, BP 20722, 44307 Nantes Cedex 3, France
| | - Fabien Pottier
- SUBATECH, UMR CNRS, 6457 IMT Atlantique/IN2P3/Université de Nantes, 4 rue Alfred Kastler, BP 20722, 44307 Nantes Cedex 3, France
| | | | - Cyrille Alliot
- GIP ARRONAX, 1 rue Aronnax, CS 10112, 44817 Saint-Herblain Cedex, France
- INSERM 892, CNRS 6299, CRCNA, 8 quai Moncousu, BP 70721, 44007 Nantes Cedex, France
| | - Gilles Montavon
- SUBATECH, UMR CNRS, 6457 IMT Atlantique/IN2P3/Université de Nantes, 4 rue Alfred Kastler, BP 20722, 44307 Nantes Cedex 3, France
| | - Julie Champion
- SUBATECH, UMR CNRS, 6457 IMT Atlantique/IN2P3/Université de Nantes, 4 rue Alfred Kastler, BP 20722, 44307 Nantes Cedex 3, France
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Lee CJ, Wu H, Hu Y, Young M, Wang H, Lynch D, Xu F, Cong H, Cheng G. Ionic Conductivity of Polyelectrolyte Hydrogels. ACS APPLIED MATERIALS & INTERFACES 2018; 10:5845-5852. [PMID: 29384644 DOI: 10.1021/acsami.7b15934] [Citation(s) in RCA: 49] [Impact Index Per Article: 8.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
Polyelectrolytes have many important functions in both living organisms and man-made applications. One key property of polyelectrolytes is the ionic conductivity due to their porous networks that allow the transport of water and small molecular solutes. Among polyelectrolytes, zwitterionic polymers have attracted huge attention for applications that involve ion transport in a polyelectrolyte matrix; however, it is still unclear how the functional groups of zwitterionic polymer side chains affect their ion transport and swelling properties. In this study, zwitterionic poly(carboxybetaine acrylamide), poly(2-methacryloyloxyethyl phosphorylcholine), and poly(sulfobetaine methacrylate) hydrogels were synthesized and their ionic conductivity was studied and compared to cationic, anionic, and nonionic hydrogels. The change of the ionic conductivity of zwitterionic and nonionic hydrogels in different saline solutions was investigated in detail. Zwitterionic hydrogels showed much higher ionic conductivity than that of the widely used nonionic poly(ethylene glycol) methyl ether methacrylate hydrogel in all tested solutions. For both cationic and anionic hydrogels, the presence of mobile counterions led to high ionic conductivity in low salt solutions; however, the ionic conductivity of zwitterionic hydrogels surpassed that of cationic and ionic hydrogels in high salt solutions. Cationic and anionic hydrogels showed much higher water content than that of zwitterionic hydrogels in deionized water; however, the cationic hydrogels shrank significantly with increasing saline concentration. This work provides insight into the effects of polyelectrolyte side chains on ion transport. This can guide us in choosing better polyelectrolytes for a broad spectrum of applications, including bioelectronics, neural implants, battery, and so on.
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Affiliation(s)
- Chen-Jung Lee
- Department of Chemical and Biomolecular Engineering, University of Akron , Akron, Ohio 44325, United States
| | - Haiyan Wu
- Department of Chemical and Biomolecular Engineering, University of Akron , Akron, Ohio 44325, United States
| | - Yang Hu
- Department of Chemical Engineering, University of Illinois at Chicago , Chicago, Illinois 60607, United States
| | - Megan Young
- Department of Chemical Engineering, University of Illinois at Chicago , Chicago, Illinois 60607, United States
| | - Huifeng Wang
- Department of Chemical Engineering, University of Illinois at Chicago , Chicago, Illinois 60607, United States
| | - Dylan Lynch
- Department of Chemical Engineering, University of Illinois at Chicago , Chicago, Illinois 60607, United States
| | - Fujian Xu
- Key Laboratory of Carbon Fiber and Functional Polymers, Ministry of Education and Beijing Laboratory of Biomedical Materials, Beijing University of Chemical Technology , Beijing 100029 China
| | - Hongbo Cong
- Department of Chemical and Biomolecular Engineering, University of Akron , Akron, Ohio 44325, United States
| | - Gang Cheng
- Department of Chemical Engineering, University of Illinois at Chicago , Chicago, Illinois 60607, United States
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Kist TBL. Number of theoretical plates achievable by a toroidal capillary electrophoresis system. J Sep Sci 2017; 40:4619-4627. [PMID: 28988461 DOI: 10.1002/jssc.201700712] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2017] [Revised: 09/14/2017] [Accepted: 09/15/2017] [Indexed: 12/27/2022]
Abstract
The ability of a method and instrument to separate very similar compounds is related to the "plate number," a number indicating performance. The resolution between two neighboring peaks is proportional to the square root of the plate number. Currently available commercial capillary electrophoresis instruments easily reach plate numbers of a few million. In the present work, a capillary electrophoresis system with a toroidal platform is proposed and theoretically studied with the goal of extending the achievable plate number. In this new system, electrophoresis occurs in a nonstop continuous circulating mode within a closed loop capillary (toroid). Plate numbers upwards of one billion are theoretically predicted. This could resolve hundreds of unseparated mixtures of stereoisomers and other analytes that remain without a method for their analysis.
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Affiliation(s)
- Tarso B Ledur Kist
- Laboratory of Methods, Department of Biophysics, Institute of Biosciences, Federal University of Rio Grande do Sul, Porto Alegre, Rio Grande do Sul, Brazil
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Kamencev M, Yakimova N, Moskvin L, Kuchumova I, Tkach K, Malinina Y. Fast isotopic separation of10B and11B boric acid by capillary zone electrophoresis. Electrophoresis 2016; 37:3017-3019. [DOI: 10.1002/elps.201600265] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2016] [Revised: 07/06/2016] [Accepted: 07/24/2016] [Indexed: 11/10/2022]
Affiliation(s)
- Mikhail Kamencev
- Institute of Chemistry; St. Petersburg State University; Saint-Petersburg Russia
| | - Nina Yakimova
- Institute of Chemistry; St. Petersburg State University; Saint-Petersburg Russia
| | - Leonid Moskvin
- Institute of Chemistry; St. Petersburg State University; Saint-Petersburg Russia
| | - Irina Kuchumova
- Institute of Chemistry; St. Petersburg State University; Saint-Petersburg Russia
| | - Kirill Tkach
- Institute of Chemistry; St. Petersburg State University; Saint-Petersburg Russia
| | - Yulia Malinina
- Institute of Chemistry; St. Petersburg State University; Saint-Petersburg Russia
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Kamencev M, Yakimova N, Moskvin L, Kuchumova I, Tkach K, Malinina Y, Tungusov O. Isotopic separation of lithium ions by capillary zone electrophoresis. Electrophoresis 2015; 36:3014-7. [DOI: 10.1002/elps.201500399] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/26/2015] [Revised: 09/14/2015] [Accepted: 09/14/2015] [Indexed: 11/06/2022]
Affiliation(s)
- Mikhail Kamencev
- Institute of Chemistry; St. Petersburg State University; Saint-Petersburg Russian Federation
| | - Nina Yakimova
- Institute of Chemistry; St. Petersburg State University; Saint-Petersburg Russian Federation
| | - Leonid Moskvin
- Institute of Chemistry; St. Petersburg State University; Saint-Petersburg Russian Federation
| | - Irina Kuchumova
- Institute of Chemistry; St. Petersburg State University; Saint-Petersburg Russian Federation
| | - Kirill Tkach
- Institute of Chemistry; St. Petersburg State University; Saint-Petersburg Russian Federation
| | - Yulia Malinina
- Institute of Chemistry; St. Petersburg State University; Saint-Petersburg Russian Federation
| | - Oleg Tungusov
- The Mayak Production Association; Ozersk Russian Federation
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