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Ouimet JA, Xu J, Flores‐Hansen C, Phillip WA, Boudouris BW. Design Considerations for Next‐Generation Polymer Sorbents: From Polymer Chemistry to Device Configurations. MACROMOL CHEM PHYS 2022. [DOI: 10.1002/macp.202200032] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Jonathan Aubuchon Ouimet
- Department of Chemical and Biomolecular Engineering University of Notre Dame Notre Dame Indiana 46566 United States
| | - Jialing Xu
- Department of Chemical and Biomolecular Engineering University of Notre Dame Notre Dame Indiana 46566 United States
| | - Carsten Flores‐Hansen
- Department of Chemistry Purdue University West Lafayette Indiana 47907 United States
| | - William A. Phillip
- Department of Chemical and Biomolecular Engineering University of Notre Dame Notre Dame Indiana 46566 United States
| | - Bryan W. Boudouris
- Department of Chemistry Purdue University West Lafayette Indiana 47907 United States
- Charles D. Davidson School of Chemical Engineering Purdue University West Lafayette Indiana 47907 United States
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2
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Tan S, Saito K, Hearn MTW. Isothermal modelling of protein adsorption to thermo-responsive polymer grafted Sepharose Fast Flow sorbents. J Sep Sci 2021; 44:1884-1892. [PMID: 33650274 DOI: 10.1002/jssc.202001188] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2020] [Revised: 01/31/2021] [Accepted: 02/24/2021] [Indexed: 12/20/2022]
Abstract
In this study, five adsorption isotherm models, that is, the Langmuir, Freundlich, Langmuir-Freundlich, Temkin and Brunauer-Emmett-Teller isotherms, were utilized for the analysis of the experimental adsorption data for six classes of poly(N-isopropylacrylamide)-based thermo-responsive copolymer-grafted Sepharose Fast Flow sorbents of different copolymer compositions with two structurally related proteins, namely bovine holo-lactoferrin and bovine holo-transferrin at 20 and 50°C. The experimental data for bovine holo-lactoferrin could be mathematically fitted to the Freundlich and Temkin isotherms when the protein feed concentrations were in the range of 1-40 mg/mL at both 20 and 50°C. Similar analysis of the binding of the homologous protein, bovine holo-transferrin, to the same thermo-responsive copolymer-grafted sorbents revealed that the experimental data could be fitted to the Langmuir, Freundlich and Temkin isotherms with coefficients of determination value over 0.90.
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Affiliation(s)
- Sinuo Tan
- School of Chemistry, Faculty of Science, Monash University, Victoria, Australia
| | - Kei Saito
- School of Chemistry, Faculty of Science, Monash University, Victoria, Australia
| | - Milton T W Hearn
- School of Chemistry, Faculty of Science, Monash University, Victoria, Australia
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3
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Tan S, Boysen RI, Saito K, Hearn MT. Dynamic adsorption/desorption of proteins with thermo-responsive polymer grafted sepharose fast flow sorbents. Sep Purif Technol 2021. [DOI: 10.1016/j.seppur.2020.118173] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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4
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Tan S, Saito K, Hearn MTW. Adsorption of a Humanized Monoclonal Antibody onto Thermoresponsive Copolymer-Grafted Sepharose Fast Flow Sorbents. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2021; 37:1054-1061. [PMID: 33448225 DOI: 10.1021/acs.langmuir.0c02675] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
The batch adsorption behavior of a humanized monoclonal antibody (hIgG2 mAb) with thermoresponsive polymer (TRP)-modified Sepharose Fast Flow sorbents with different compositions of grafted copolymers is described. At high protein loadings, the adsorption with negatively charged copolymer-modified sorbents exhibited S-shaped isotherms in most cases, indicative of unrestricted multilayer adsorption. The adsorption capacity of the negatively charged copolymer-modified sorbents increased with an increase in the applied environmental temperature due to increased protein-sorbent surface hydrophobic and electrostatic interactions. The affinity of the hIgG2 mAb for a positively charged copolymer-grafted sorbent was much lower than that found for the negatively charged copolymer-grafted sorbents at both 20 and 50 °C due to electrostatic repulsive effects. This study has documented that the molecular functionalities of the grafted copolymer can significantly affect the adsorption behavior of this humanized mAb at both 20 and 50 °C with the isothermal dependencies revealing subtle effects due to copolymer composition.
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Affiliation(s)
- Sinuo Tan
- School of Chemistry, Monash University, Clayton, Victoria 3800, Australia
| | - Kei Saito
- School of Chemistry, Monash University, Clayton, Victoria 3800, Australia
| | - Milton T W Hearn
- School of Chemistry, Monash University, Clayton, Victoria 3800, Australia
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5
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Tan S, Campi EM, Boysen RI, Saito K, Hearn MTW. Batch binding studies with thermo-responsive polymer grafted sepharose 6 fast flow sorbents under different temperature and protein loading conditions. J Chromatogr A 2020; 1625:461298. [DOI: 10.1016/j.chroma.2020.461298] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2020] [Revised: 05/29/2020] [Accepted: 05/31/2020] [Indexed: 11/28/2022]
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6
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Tan S, Saito K, Hearn MTW. Stimuli-responsive polymeric materials for separation of biomolecules. Curr Opin Biotechnol 2018; 53:209-223. [DOI: 10.1016/j.copbio.2018.02.011] [Citation(s) in RCA: 30] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/31/2017] [Revised: 02/12/2018] [Accepted: 02/12/2018] [Indexed: 10/17/2022]
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7
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Zhang H, Zhao L, Huang Y, Zhu K, Wang Q, Yang R, Su Z, Ma G. Uniform polysaccharide composite microspheres with controllable network by microporous membrane emulsification technique. Anal Bioanal Chem 2018; 410:4331-4341. [DOI: 10.1007/s00216-018-1084-9] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2018] [Revised: 04/10/2018] [Accepted: 04/13/2018] [Indexed: 10/16/2022]
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8
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Liu L, Zhao X, Zeng L, Zhu T. Determination of Sulfamerazine in River Water Using Thermoresponsive Modified Silica for Solid-Phase Extraction with High-Performance Liquid Chromatography Detection. ANAL LETT 2018. [DOI: 10.1080/00032719.2018.1447951] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
Affiliation(s)
- Lingling Liu
- Tianjin Key Laboratory of Organic Solar Cells and Photochemical Conversion, School of Chemistry and Chemical Engineering, Tianjin University of Technology, Tianjin, China
| | - Xiaowei Zhao
- Tianjin Key Laboratory of Organic Solar Cells and Photochemical Conversion, School of Chemistry and Chemical Engineering, Tianjin University of Technology, Tianjin, China
| | - Lintao Zeng
- Tianjin Key Laboratory of Organic Solar Cells and Photochemical Conversion, School of Chemistry and Chemical Engineering, Tianjin University of Technology, Tianjin, China
| | - Tao Zhu
- Tianjin Key Laboratory of Organic Solar Cells and Photochemical Conversion, School of Chemistry and Chemical Engineering, Tianjin University of Technology, Tianjin, China
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10
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Hernández-Vargas G, Ponce-Ponce de León CA, González-Valdez J, Iqbal HMN. “Smart” Polymers: Physicochemical Characteristics and Applications in Bio-Separation Strategies. SEPARATION AND PURIFICATION REVIEWS 2017. [DOI: 10.1080/15422119.2017.1356332] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Affiliation(s)
- Gustavo Hernández-Vargas
- Tecnologico de Monterrey, School of Engineering and Science, Tecnologico de Monterrey, Campus Monterrey, Monterrey, N.L., Mexico
| | | | - José González-Valdez
- Tecnologico de Monterrey, School of Engineering and Science, Tecnologico de Monterrey, Campus Monterrey, Monterrey, N.L., Mexico
| | - Hafiz M. N. Iqbal
- Tecnologico de Monterrey, School of Engineering and Science, Tecnologico de Monterrey, Campus Monterrey, Monterrey, N.L., Mexico
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11
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Sepehrifar R, Boysen RI, Danylec B, Yang Y, Saito K, Hearn MT. Design, synthesis and application of a new class of stimuli-responsive separation materials. Anal Chim Acta 2017; 963:153-163. [DOI: 10.1016/j.aca.2017.01.061] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/18/2016] [Revised: 01/25/2017] [Accepted: 01/29/2017] [Indexed: 11/29/2022]
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12
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Antos D, Piątkowski W. Band deformation in non-isocratic liquid chromatography. Trends Analyt Chem 2016. [DOI: 10.1016/j.trac.2016.01.005] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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13
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Akimaru M, Okubo K, Hiruta Y, Kanazawa H. Temperature-responsive Solid-phase Extraction Column for Biological Sample Pretreatment. ANAL SCI 2016; 31:881-6. [PMID: 26353953 DOI: 10.2116/analsci.31.881] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
We have developed a novel solid-phase extraction (SPE) system utilizing a temperature-responsive polymer hydrogel-modified stationary phase. Aminopropyl silica beads (average diameter, 40 - 64 μm) were coated with poly(N-isopropylacrylamide) (PNIPAAm)-based thermo-responsive hydrogels. Butyl methacrylate (BMA) and N,N-dimethylaminopropyl acrylamide (DMAPAAm) were used as the hydrophobic and cationic monomers, respectively, and copolymerized with NIPAAm. To evaluate the use of this SPE cartridge for the analysis of drugs and proteins in biological fluids, we studied the separation of phenytoin and theophylline from human serum albumin (HSA) as a model system. The retention of the analytes in an exclusively aqueous eluent could be modulated by changing the temperature and salt content. These results indicated that this temperature-responsive SPE system can be applied to the pretreatment of biological samples for the measurement of serum drug levels.
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Kulsing C, Yang Y, Sepehrifar R, Lim M, Toppete J, Matyska MT, Pesek JJ, Boysen RI, Hearn MTW. Investigations into the separation behaviour of perfluorinated C8 and undecanoic acid modified silica hydride stationary phases. Anal Chim Acta 2016; 916:102-11. [PMID: 27016444 DOI: 10.1016/j.aca.2016.02.013] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/26/2015] [Revised: 02/12/2016] [Accepted: 02/14/2016] [Indexed: 11/25/2022]
Abstract
In this study, the surface charge properties of perfluorinated C8 (PerfluoroC8) and undecanoic acid (UDA) modified silica hydride stationary phases have been investigated. The zeta potential values of these stationary phases were measured in aqueous/acetonitrile mobile phases of different pH, buffer concentrations and acetonitrile contents. The retention behaviour of several basic, acidic and neutral compounds were then examined with these two stationary phases, with U-shaped retention dependencies evident with regard to the organic solvent content of the mobile phase. Plots of the logarithmic retention factor versus buffer concentration revealed slopes ≥ -0.41 for both stationary phases, indicating the involvement of mixed mode retention mechanisms with contributions from both ionic and non-ionic interactions. Using a linear solvation energy relationship approach, the origins of these interactions under different mobile phase conditions were differentiated and quantified. The PerfluoroC8 stationary phase exhibited stronger retention for basic compounds under high acetonitrile content mobile phase conditions, whilst stronger retention was observed for all compounds with the UDA stationary phase under high aqueous content mobile phase conditions. The more negative zeta potentials of the UDA stationary phase correlated with higher total charge density, surface charge density and charge density at the beta plane (the outer plane of the double layer) compared to the PerfluoroC8 stationary phase. With mobile phases of low buffer concentrations, more negative zeta potential values were unexpectedly observed for the PerfluoroC8 stationary phase with slight increases in the C descriptor value, reflecting also the greater accessibility of the analytes to the stationary phase surface. Comparison of the retention behaviours on these phases with other types of silica hydride stationary phases has revealed different patterns of selectivity.
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Affiliation(s)
- Chadin Kulsing
- Australian Centre for Research on Separation Science (ACROSS), School of Chemistry, Monash University, Melbourne, Victoria 3800, Australia
| | - Yuanzhong Yang
- Australian Centre for Research on Separation Science (ACROSS), School of Chemistry, Monash University, Melbourne, Victoria 3800, Australia
| | - Roshanak Sepehrifar
- Australian Centre for Research on Separation Science (ACROSS), School of Chemistry, Monash University, Melbourne, Victoria 3800, Australia
| | - Michael Lim
- Department of Chemistry, San Jose State University, San Jose, CA 95192, USA
| | - Joshua Toppete
- Department of Chemistry, San Jose State University, San Jose, CA 95192, USA
| | - Maria T Matyska
- Department of Chemistry, San Jose State University, San Jose, CA 95192, USA
| | - Joseph J Pesek
- Department of Chemistry, San Jose State University, San Jose, CA 95192, USA
| | - Reinhard I Boysen
- Australian Centre for Research on Separation Science (ACROSS), School of Chemistry, Monash University, Melbourne, Victoria 3800, Australia
| | - Milton T W Hearn
- Australian Centre for Research on Separation Science (ACROSS), School of Chemistry, Monash University, Melbourne, Victoria 3800, Australia.
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15
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Qu JB, Xu YL, Liu JY, Zeng JB, Chen YL, Zhou WQ, Liu JG. Thermo- and pH-responsive polymer brushes-grafted gigaporous polystyrene microspheres as a high-speed protein chromatography matrix. J Chromatogr A 2016; 1441:60-7. [PMID: 26947166 DOI: 10.1016/j.chroma.2016.02.072] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/04/2015] [Revised: 02/23/2016] [Accepted: 02/24/2016] [Indexed: 10/22/2022]
Abstract
Dual thermo- and pH-responsive chromatography has been proposed using poly(N-isopropylacrylamide-co-butyl methacrylate-co-N,N-dimethylaminopropyl acrylamide) (P(NIPAM-co-BMA-co-DMAPAAM)) brushes grafted gigaporous polystyrene microspheres (GPM) as matrix. Atom transfer radical polymerization (ATRP) initiator was first coupled onto GPM through Friedel-Crafts acylation with 2-bromoisobutyryl bromide. The dual-responsive polymer brushes were then grafted onto GPM via surface-initiated ATRP. The surface composition, gigaporous structure, protein adsorption and dual-responsive chromatographic properties of the matrix (GPM-P(NIPAM-co-BMA-co-DMAPAAM) were characterized in detail. Results showed that GPM were successfully grafted with thermoresponsive cationic polymer brushes and that the gigaporous structure was well maintained. A column packed with GPM-P(NIPAM-co-BMA-co-DMAPAAM presented low backpressure, good permeability and appreciable thermo-responsibility. By changing pH of the mobile phase and temperature of the column in turn, the column can separate three model proteins at the mobile phase velocity up to 2528cmh(-1). A separation mechanism of this matrix was also proposed. All results indicate that the dual thermo- and pH-responsive chromatography matrix has great potentials in 'green' high-speed protein chromatography.
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Affiliation(s)
- Jian-Bo Qu
- State Key Laboratory of Heavy Oil Processing, Center for Bioengineering and Biotechnology, China University of Petroleum (East China), Qingdao 266580, PR China.
| | - Yu-Liang Xu
- State Key Laboratory of Heavy Oil Processing, Center for Bioengineering and Biotechnology, China University of Petroleum (East China), Qingdao 266580, PR China
| | - Jun-Yi Liu
- State Key Laboratory of Heavy Oil Processing, Center for Bioengineering and Biotechnology, China University of Petroleum (East China), Qingdao 266580, PR China
| | - Jing-Bin Zeng
- State Key Laboratory of Heavy Oil Processing, Center for Bioengineering and Biotechnology, China University of Petroleum (East China), Qingdao 266580, PR China
| | - Yan-Li Chen
- State Key Laboratory of Heavy Oil Processing, Center for Bioengineering and Biotechnology, China University of Petroleum (East China), Qingdao 266580, PR China
| | - Wei-Qing Zhou
- National Key Laboratory of Biochemical Engineering, Institute of Process Engineering, Chinese Academy of Sciences, Beijing 100190, PR China
| | - Jian-Guo Liu
- State Key Laboratory of Heavy Oil Processing, Center for Bioengineering and Biotechnology, China University of Petroleum (East China), Qingdao 266580, PR China
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16
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Studies on the application of temperature-responsive ion exchange polymers with whey proteins. J Chromatogr A 2016; 1438:113-22. [DOI: 10.1016/j.chroma.2016.02.020] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2015] [Revised: 02/04/2016] [Accepted: 02/04/2016] [Indexed: 11/23/2022]
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17
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Ooi HW, Ketterer B, Trouillet V, Franzreb M, Barner-Kowollik C. Thermoresponsive Agarose Based Microparticles for Antibody Separation. Biomacromolecules 2015; 17:280-90. [DOI: 10.1021/acs.biomac.5b01391] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Huey Wen Ooi
- Preparative
Macromolecular Chemistry, Institut für Technische Chemie und
Polymerchemie, Karlsruhe Institute of Technology (KIT), Engesserstr. 18, 76128 Karlsruhe, Germany
| | | | | | | | - Christopher Barner-Kowollik
- Preparative
Macromolecular Chemistry, Institut für Technische Chemie und
Polymerchemie, Karlsruhe Institute of Technology (KIT), Engesserstr. 18, 76128 Karlsruhe, Germany
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18
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Application of polymeric macroporous supports for temperature-responsive chromatography of pharmaceuticals. J Chromatogr A 2015; 1407:90-9. [DOI: 10.1016/j.chroma.2015.06.028] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2015] [Revised: 06/01/2015] [Accepted: 06/10/2015] [Indexed: 01/29/2023]
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19
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Cao P, Müller TK, Ketterer B, Ewert S, Theodosiou E, Thomas OR, Franzreb M. Integrated system for temperature-controlled fast protein liquid chromatography. II. Optimized adsorbents and ‘single column continuous operation’. J Chromatogr A 2015; 1403:118-31. [DOI: 10.1016/j.chroma.2015.05.039] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2015] [Revised: 05/13/2015] [Accepted: 05/15/2015] [Indexed: 10/23/2022]
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20
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Lee MFX, Chan ES, Tam KC, Tey BT. Thermo-responsive adsorbent for size-selective protein adsorption. J Chromatogr A 2015; 1394:71-80. [DOI: 10.1016/j.chroma.2015.03.034] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/16/2014] [Revised: 02/25/2015] [Accepted: 03/16/2015] [Indexed: 12/18/2022]
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21
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Lorenzo RA, Carro AM, Concheiro A, Alvarez-Lorenzo C. Stimuli-responsive materials in analytical separation. Anal Bioanal Chem 2015; 407:4927-48. [DOI: 10.1007/s00216-015-8679-1] [Citation(s) in RCA: 42] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/21/2015] [Revised: 03/30/2015] [Accepted: 04/07/2015] [Indexed: 02/07/2023]
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22
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Qu JB, Chen YL, Huan GS, Zhou WQ, Liu JG, Zhu H, Zhang XY. Preparation and characterization of a thermoresponsive gigaporous medium for high-speed protein chromatography. Anal Chim Acta 2015; 853:617-624. [DOI: 10.1016/j.aca.2014.09.034] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2014] [Revised: 09/19/2014] [Accepted: 09/22/2014] [Indexed: 11/26/2022]
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23
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Conformational transitions and dynamics of thermal responsive poly(N-isopropylacrylamide) polymers as revealed by molecular simulation. Eur Polym J 2014. [DOI: 10.1016/j.eurpolymj.2014.03.019] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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24
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Terefe NS, Glagovskaia O, De Silva K, Stockmann R. Application of stimuli responsive polymers for sustainable ion exchange chromatography. FOOD AND BIOPRODUCTS PROCESSING 2014. [DOI: 10.1016/j.fbp.2014.02.003] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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25
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Adsorption behavior of proteins on temperature-responsive resins. J Chromatogr A 2014; 1324:181-9. [DOI: 10.1016/j.chroma.2013.11.040] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/11/2013] [Revised: 09/29/2013] [Accepted: 11/20/2013] [Indexed: 01/15/2023]
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26
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Integrated system for temperature-controlled fast protein liquid chromatography comprising improved copolymer modified beaded agarose adsorbents and a travelling cooling zone reactor arrangement. J Chromatogr A 2013; 1285:97-109. [DOI: 10.1016/j.chroma.2013.02.025] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/05/2012] [Revised: 02/05/2013] [Accepted: 02/07/2013] [Indexed: 11/22/2022]
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27
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Temperature-triggered Protein Adsorption and Desorption on Temperature-responsive PNIPAAm-grafted-silica: Molecular Dynamics Simulation and Experimental Validation. Chin J Chem Eng 2012. [DOI: 10.1016/s1004-9541(12)60390-5] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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28
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29
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Application of a pH responsive multimodal hydrophobic interaction chromatography medium for the analysis of glycosylated proteins. J Chromatogr A 2011; 1218:678-83. [DOI: 10.1016/j.chroma.2010.11.080] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2010] [Revised: 11/22/2010] [Accepted: 11/29/2010] [Indexed: 12/20/2022]
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