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Masaoka M, Ishida H, Watanabe T, Ono T. Engineering Interconnected Open-Porous Particles via Microfluidics Using Bijel Droplets as Structural Templates. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2024; 40:8074-8082. [PMID: 38578046 DOI: 10.1021/acs.langmuir.3c04017] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/06/2024]
Abstract
Designing porous structures is key in materials science, particularly for separation, catalysis, and cell culture systems. Bicontinuous interfacially jammed emulsion gels represent a unique class of soft matter formed by kinetically arresting the separation of the spinodal decomposition phase, which is stabilized by colloidal particles with neutral wetting. This study introduces a microfluidic technique to create highly interconnected open-porous particles using bijel droplets stabilized with hexadecyltrimethylammonium bromide (CTAB)-modified silica particles. Monodisperse droplets comprising a hydrophobic monomer, water, ethanol, silica particles, and CTAB were initially formed in the microfluidic device. The diffusion of ethanol from these droplets into the continuous cyclohexane phase triggered spinodal decomposition within the droplets. The phase-separated structure within the droplets was stabilized by the CTAB-modified silica particles, and subsequent photopolymerization yielded microparticles with highly interconnected, open pores. Moreover, the influence of the ratio of the CTAB and silica particles, fluid composition, and microchannel direction on the final structure of the microparticles was explored. Our findings indicated that the phase-separated structure of the particles transitioned from oil-in-water to water-in-oil as the CTAB/silica ratio was increased. At intermediate CTAB/silica ratios, microparticles with bicontinuous structures were formed. Regardless of the fluid composition, the pore size of the particles increased with time after phase separation. However, this coarsening was arrested 15 s after droplet formation in the CTAB-modified silica particles, accompanied by a change in the particle shape from spherical to ellipsoidal. In situ observations of the bijel droplet formation revealed that the particle shape deformation is caused by the rolling of elastic bijel droplets at the bottom of the microchannel. As such, the channel setup was altered from horizontal to vertical to prevent the deformation of bijel droplets, resulting in spherical particles with open pores.
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Affiliation(s)
- Mina Masaoka
- Department of Applied Chemistry, Graduate School of Natural Science and Technology, Okayama University, 3-1-1, Tsushima-naka, Kita-ku, Okayama 700-8530, Japan
| | - Hiroaki Ishida
- Department of Applied Chemistry, Graduate School of Natural Science and Technology, Okayama University, 3-1-1, Tsushima-naka, Kita-ku, Okayama 700-8530, Japan
| | - Takaichi Watanabe
- Department of Applied Chemistry, Graduate School of Natural Science and Technology, Okayama University, 3-1-1, Tsushima-naka, Kita-ku, Okayama 700-8530, Japan
| | - Tsutomu Ono
- Department of Applied Chemistry, Graduate School of Natural Science and Technology, Okayama University, 3-1-1, Tsushima-naka, Kita-ku, Okayama 700-8530, Japan
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2
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Fabrication and Characterization of a Cellulose Monolith-like Particle for Virus Purification. Biochem Eng J 2023. [DOI: 10.1016/j.bej.2023.108849] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
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3
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Bimodal gigaporous polystyrene microspheres with glycopolymer surfaces for high-speed protein chromatography. Microchem J 2022. [DOI: 10.1016/j.microc.2022.107273] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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4
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Sánchez-Trasviña C, Flores-Gatica M, Enriquez-Ochoa D, Rito-Palomares M, Mayolo-Deloisa K. Purification of Modified Therapeutic Proteins Available on the Market: An Analysis of Chromatography-Based Strategies. Front Bioeng Biotechnol 2021; 9:717326. [PMID: 34490225 PMCID: PMC8417561 DOI: 10.3389/fbioe.2021.717326] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2021] [Accepted: 08/09/2021] [Indexed: 02/02/2023] Open
Abstract
Proteins, which have inherent biorecognition properties, have long been used as therapeutic agents for the treatment of a wide variety of clinical indications. Protein modification through covalent attachment to different moieties improves the therapeutic's pharmacokinetic properties, affinity, stability, confers protection against proteolytic degradation, and increases circulation half-life. Nowadays, several modified therapeutic proteins, including PEGylated, Fc-fused, lipidated, albumin-fused, and glycosylated proteins have obtained regulatory approval for commercialization. During its manufacturing, the purification steps of the therapeutic agent are decisive to ensure the quality, effectiveness, potency, and safety of the final product. Due to the robustness, selectivity, and high resolution of chromatographic methods, these are recognized as the gold standard in the downstream processing of therapeutic proteins. Moreover, depending on the modification strategy, the protein will suffer different physicochemical changes, which must be considered to define a purification approach. This review aims to deeply analyze the purification methods employed for modified therapeutic proteins that are currently available on the market, to understand why the selected strategies were successful. Emphasis is placed on chromatographic methods since they govern the purification processes within the pharmaceutical industry. Furthermore, to discuss how the modification type strongly influences the purification strategy, the purification processes of three different modified versions of coagulation factor IX are contrasted.
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Affiliation(s)
- Calef Sánchez-Trasviña
- Tecnologico de Monterrey, Escuela de Ingeniería y Ciencias, Centro de Biotecnología-FEMSA, Monterrey, Mexico
| | - Miguel Flores-Gatica
- Tecnologico de Monterrey, Escuela de Ingeniería y Ciencias, Centro de Biotecnología-FEMSA, Monterrey, Mexico
| | - Daniela Enriquez-Ochoa
- Tecnologico de Monterrey, Escuela de Ingeniería y Ciencias, Centro de Biotecnología-FEMSA, Monterrey, Mexico
| | - Marco Rito-Palomares
- Tecnologico de Monterrey, Escuela de Medicina y Ciencias de la Salud, Monterrey, Mexico
| | - Karla Mayolo-Deloisa
- Tecnologico de Monterrey, Escuela de Ingeniería y Ciencias, Centro de Biotecnología-FEMSA, Monterrey, Mexico
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Qiao L, Li S, Du K. Fabrication and characterization of porous cellulose beads with high strength and specific surface area via preliminary chemical cross-linking reaction for protein separation. Biochem Eng J 2020. [DOI: 10.1016/j.bej.2019.107412] [Citation(s) in RCA: 23] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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6
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Good modeling practice for industrial chromatography: Mechanistic modeling of ion exchange chromatography of a bispecific antibody. Comput Chem Eng 2019. [DOI: 10.1016/j.compchemeng.2019.106532] [Citation(s) in RCA: 27] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
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7
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Zhao X, Huang L, Wu J, Huang YD, Zhao L, Wu N, Zhou WQ, Hao DX, Ma GH, Su ZG. Fabrication of rigid and macroporous agarose microspheres by pre-cross-linking and surfactant micelles swelling method. Colloids Surf B Biointerfaces 2019; 182:110377. [PMID: 31351275 DOI: 10.1016/j.colsurfb.2019.110377] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2019] [Revised: 06/11/2019] [Accepted: 07/17/2019] [Indexed: 01/02/2023]
Abstract
A novel combined method of pre-cross-linking and surfactant micelles swelling was proposed in this study to fabricate highly cross-linked and macroporous agarose (HMA) microspheres. Agarose was chemically modified by allylglycidyl ether (AGE) as heterobifunctional cross-linker via its active glycidyl moieties before gel formation and pre-cross-linking was achieved. By this means, the effective concentration of cross-linker presented in agarose gel increased significantly, and thus cross-linking with a high-efficiency was achieved. Further to enhance the intraparticle mass transfer of agarose microspheres, the surfactant micelles swelling method was utilized to create interconnected macropores. Under the optimal condition, HMA microspheres with homogeneous reticular structure and pore size of hundreds nanometers were successfully prepared. They exhibited a low backpressure with a flow velocity as high as 1987 cm/h, which was much higher than that of commercial Sepharose 4 F F. HMA microspheres were then derivatized with carboxymethyl (CM) groups and applied in ion-exchange chromatography. As expected, CM-HMA column separated model proteins effectively even at a flow velocity three times higher than that of commercial CM-4 F F. Visualization of dynamic protein adsorption by confocal laser scanning microscope (CLSM) revealed that the intraparticle mass transfer of CM-HMA microspheres was intensified due to its macroporous structure. All of the results indicated the newly developed agarose microspheres were a promising medium for high-speed chromatography.
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Affiliation(s)
- Xi Zhao
- State Key Laboratory of Biochemical Engineering, Institute of Process Engineering, Chinese Academy of Sciences, Beijing, 100190, China; University of Chinese Academy of Sciences, Beijing, 100190, China
| | - Lan Huang
- State Key Laboratory of Biochemical Engineering, Institute of Process Engineering, Chinese Academy of Sciences, Beijing, 100190, China; School of Chemical & Environmental Engineering, China University of Mining & Technology, Beijing 100083, China
| | - Jie Wu
- State Key Laboratory of Biochemical Engineering, Institute of Process Engineering, Chinese Academy of Sciences, Beijing, 100190, China.
| | - Yong-Dong Huang
- State Key Laboratory of Biochemical Engineering, Institute of Process Engineering, Chinese Academy of Sciences, Beijing, 100190, China
| | - Lan Zhao
- State Key Laboratory of Biochemical Engineering, Institute of Process Engineering, Chinese Academy of Sciences, Beijing, 100190, China
| | - Nan Wu
- State Key Laboratory of Biochemical Engineering, Institute of Process Engineering, Chinese Academy of Sciences, Beijing, 100190, China
| | - Wei-Qing Zhou
- State Key Laboratory of Biochemical Engineering, Institute of Process Engineering, Chinese Academy of Sciences, Beijing, 100190, China
| | - Dong-Xia Hao
- State Key Laboratory of Biochemical Engineering, Institute of Process Engineering, Chinese Academy of Sciences, Beijing, 100190, China
| | - Guang-Hui Ma
- State Key Laboratory of Biochemical Engineering, Institute of Process Engineering, Chinese Academy of Sciences, Beijing, 100190, China; University of Chinese Academy of Sciences, Beijing, 100190, China.
| | - Zhi-Guo Su
- State Key Laboratory of Biochemical Engineering, Institute of Process Engineering, Chinese Academy of Sciences, Beijing, 100190, China
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8
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Li Q, Ma L, Xu L. Fast reversed‐phase liquid chromatographic separation of proteins by flow‐through poly(styrene‐
co
‐divinylbenzene) microspheres. J Sep Sci 2019; 42:2788-2795. [DOI: 10.1002/jssc.201900292] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/19/2019] [Revised: 06/11/2019] [Accepted: 06/18/2019] [Indexed: 01/28/2023]
Affiliation(s)
- Qin‐ying Li
- Tongji School of PharmacyHuazhong University of Science and Technology Wuhan P. R. China
| | - Li‐yun Ma
- Department of PharmacyUnion Hospital of Huazhong University of Science and Technology Wuhan P. R. China
| | - Li Xu
- Tongji School of PharmacyHuazhong University of Science and Technology Wuhan P. R. China
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Sun X, Li J, Xu L. Synthesis of penetrable poly(methacrylic acid-co-ethylene glycol dimethacrylate) microsphere and its HPLC application in protein separation. Talanta 2018; 185:182-190. [DOI: 10.1016/j.talanta.2018.03.080] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/27/2017] [Revised: 03/20/2018] [Accepted: 03/24/2018] [Indexed: 12/24/2022]
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10
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Chew KW, Ling TC, Show PL. Recent Developments and Applications of Three-Phase Partitioning for the Recovery of Proteins. SEPARATION AND PURIFICATION REVIEWS 2018. [DOI: 10.1080/15422119.2018.1427596] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Affiliation(s)
- Kit Wayne Chew
- Department of Chemical and Environmental Engineering and Bioseparation Research Group, Faculty of Engineering, University of Nottingham Malaysia Campus, Semenyih, Selangor Darul Ehsan 43500, Malaysia
| | - Tau Chuan Ling
- Institute of Biological Sciences, Faculty of Science, University of Malaya, Kuala Lumpur 50603, Malaysia
| | - Pau Loke Show
- Department of Chemical and Environmental Engineering and Bioseparation Research Group, Faculty of Engineering, University of Nottingham Malaysia Campus, Semenyih, Selangor Darul Ehsan 43500, Malaysia
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11
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Schure MR, Moran RE. Size exclusion chromatography with superficially porous particles. J Chromatogr A 2017; 1480:11-19. [PMID: 28007299 PMCID: PMC5266604 DOI: 10.1016/j.chroma.2016.12.016] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/24/2016] [Revised: 11/07/2016] [Accepted: 12/09/2016] [Indexed: 10/20/2022]
Abstract
A comparison is made using size-exclusion chromatography (SEC) of synthetic polymers between fully porous particles (FPPs) and superficially porous particles (SPPs) with similar particle diameters, pore sizes and equal flow rates. Polystyrene molecular weight standards with a mobile phase of tetrahydrofuran are utilized for all measurements conducted with standard HPLC equipment. Although it is traditionally thought that larger pore volume is thermodynamically advantageous in SEC for better separations, SPPs have kinetic advantages and these will be shown to compensate for the loss in pore volume compared to FPPs. The comparison metrics include the elution range (smaller with SPPs), the plate count (larger for SPPs), the rate production of theoretical plates (larger for SPPs) and the specific resolution (larger with FPPs). Advantages to using SPPs for SEC are discussed such that similar separations can be conducted faster using SPPs. SEC using SPPs offers similar peak capacities to that using FPPs but with faster operation. This also suggests that SEC conducted in the second dimension of a two-dimensional liquid chromatograph may benefit with reduced run time and with equivalently reduced peak width making SPPs advantageous for sampling the first dimension by the second dimension separator. Additional advantages are discussed for biomolecules along with a discussion of optimization criteria for size-based separations.
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Affiliation(s)
- Mark R Schure
- Theoretical Separation Science Laboratory, Kroungold Analytical, Inc., 1299 Butler Pike, Blue Bell, PA, 19422 USA.
| | - Robert E Moran
- Advanced Materials Technology, Inc., 3521 Silverside Road, Suite 1-K, Quillen Building, Wilmington, DE, 19810, USA
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12
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Jiménez-Lamana J, Szpunar J. Analytical approaches for the characterization of nickel proteome. Metallomics 2017; 9:1014-1027. [DOI: 10.1039/c7mt00054e] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Analytical strategies to study the nickel proteome and their advantages and limitations.
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Affiliation(s)
- Javier Jiménez-Lamana
- Laboratoire de Chimie Analytique Bio-inorganique et Environnement (LCABIE)
- UMR 5254-IPREM
- CNRS-UPPA
- Hélioparc
- France
| | - Joanna Szpunar
- Laboratoire de Chimie Analytique Bio-inorganique et Environnement (LCABIE)
- UMR 5254-IPREM
- CNRS-UPPA
- Hélioparc
- France
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13
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Wu Y, Abraham D, Carta G. Comparison of perfusion media and monoliths for protein and virus-like particle chromatography. J Chromatogr A 2016; 1447:72-81. [DOI: 10.1016/j.chroma.2016.03.077] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/26/2016] [Revised: 03/18/2016] [Accepted: 03/24/2016] [Indexed: 01/29/2023]
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14
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Brand B, Morbidelli M, Soos M. Shear-Induced Reactive Gelation. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2015; 31:12727-12735. [PMID: 26488233 DOI: 10.1021/acs.langmuir.5b02805] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
In this work, we describe a method for the production of porous polymer materials in the form of particles characterized by narrow pore size distribution using the principle of shear-induced reactive gelation. Poly(styrene-co-divinylbenzene) primary particles with diameter ranging from 80 to 200 nm are used as building blocks, which are assembled into fractal-like clusters when exposed to high shear rates generated in a microchannel. It was found that independent of the primary particle size, it is possible to modulate the internal structure of formed fractal-like aggregates having fractal dimension ranging from 2.4 to 2.7 by varying the residence time in the microchannel. Thermally induced postpolymerization was used to increase the mechanical resilience of such formed clusters. Primary particle interpenetration was observed by SEM and confirmed by light scattering resulting in an increase of fractal dimension. Nitrogen sorption measurements and mercury porosimetry confirmed formation of a porous material with surface area ranging from 20 to 40 m(2)/g characterized by porosity of 70% and narrow pore size distribution with an average diameter around 700 nm without the presence of any micropores. The strong perfusive character of the synthesized material was confirmed by the existence of a plateau of the height equivalent to a theoretical plate measured at high reduced velocities using a chromatographic column packed with the synthesized microclusters.
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Affiliation(s)
- Bastian Brand
- Institute for Chemical and Bioengineering, Department of Chemistry and Applied Biosciences, ETH Zurich , 8093 Zurich, Switzerland
| | - Massimo Morbidelli
- Institute for Chemical and Bioengineering, Department of Chemistry and Applied Biosciences, ETH Zurich , 8093 Zurich, Switzerland
| | - Miroslav Soos
- Institute for Chemical and Bioengineering, Department of Chemistry and Applied Biosciences, ETH Zurich , 8093 Zurich, Switzerland
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15
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Chromatographic Characterization and Process Performance of Column-Packed Anion Exchange Fibrous Adsorbents for High Throughput and High Capacity Bioseparations. Processes (Basel) 2015. [DOI: 10.3390/pr3010204] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023] Open
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16
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Singh NK, Dsouza RN, Sánchez ML, Verma S, Achilli E, Vennapusa RR, Grasselli M, Fernández-Lahore M. Preparation and characterization of grafted cellulosic fibers and their applications in protein purification. Sep Purif Technol 2015. [DOI: 10.1016/j.seppur.2015.01.042] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
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17
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de Neuville BC, Lamprou A, Morbidelli M, Soos M. Perfusive ion-exchange chromatographic materials with high capacity. J Chromatogr A 2014; 1374:180-188. [DOI: 10.1016/j.chroma.2014.11.066] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/03/2014] [Revised: 10/21/2014] [Accepted: 11/25/2014] [Indexed: 10/24/2022]
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18
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Wu Y, Simons J, Hooson S, Abraham D, Carta G. Protein and virus-like particle adsorption on perfusion chromatography media. J Chromatogr A 2013; 1297:96-105. [DOI: 10.1016/j.chroma.2013.04.062] [Citation(s) in RCA: 41] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2013] [Revised: 04/17/2013] [Accepted: 04/19/2013] [Indexed: 11/16/2022]
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19
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20
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Zhang R, Li Q, Li J, Zhou W, Ye P, Gao Y, Ma G, Su Z. Covalently coating dextran on macroporous polyglycidyl methacrylate microsphere enabled rapid protein chromatographic separation. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2012. [DOI: 10.1016/j.msec.2012.08.021] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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21
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Rodríguez-Nogales JM, Vila-Crespo J, Fernández-Fernández E. Analysis of Grape Proteins from Wines by Perfusion Reversed-Phase High-Performance Liquid Chromatography. FOOD ANAL METHOD 2012. [DOI: 10.1007/s12161-012-9532-1] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
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22
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Wang F, Min Y, Geng X. Fast separations of intact proteins by liquid chromatography. J Sep Sci 2012; 35:3033-45. [DOI: 10.1002/jssc.201200339] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2012] [Revised: 07/02/2012] [Accepted: 07/03/2012] [Indexed: 11/07/2022]
Affiliation(s)
- Fei Wang
- Provincial Key Laboratory of Modern Separation Science of Shaanxi; Institute of Modern Separation Science; Northwest University; Xi'an P. R. China
| | - Yi Min
- Provincial Key Laboratory of Modern Separation Science of Shaanxi; Institute of Modern Separation Science; Northwest University; Xi'an P. R. China
| | - Xindu Geng
- Provincial Key Laboratory of Modern Separation Science of Shaanxi; Institute of Modern Separation Science; Northwest University; Xi'an P. R. China
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Preparation, characterization, and process performance of composite fibrous adsorbents as cation exchangers for high throughput and high capacity bioseparations. J Chromatogr B Analyt Technol Biomed Life Sci 2012; 903:14-22. [DOI: 10.1016/j.jchromb.2012.06.027] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2012] [Revised: 06/19/2012] [Accepted: 06/21/2012] [Indexed: 11/17/2022]
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24
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Randunu KM, Marcus RK. Microbore polypropylene capillary channeled polymer (C-CP) fiber columns for rapid reversed-phase HPLC of proteins. Anal Bioanal Chem 2012; 404:721-9. [PMID: 22736228 DOI: 10.1007/s00216-012-6163-8] [Citation(s) in RCA: 45] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2012] [Revised: 05/22/2012] [Accepted: 05/28/2012] [Indexed: 11/28/2022]
Abstract
The performance of microbore columns with polypropylene (PP) capillary-channeled polymer (C-CP) fibers as the support/stationary phase for separation of macromolecules has been investigated. Polypropylene C-CP fibers (40 μm diameter) were packed in fluorinated ethylene propylene (FEP) tubing of inner diameter 0.8 mm and lengths of 40, 60, 80, and 110 cm. The performance of PP fiber packed microbore columns (peak width, peak capacity, and resolution) was evaluated for separation of a three-protein mixture of ribonuclease A, cytochrome c, and transferrin under reversed-phase gradient conditions. The low backpressure characteristics of C-CP fiber columns enable operation at high linear velocities (up to 75 mm s(-1) at 1.5 mL min(-1)). In contrast with the performance of other phases, such velocities enable enhanced resolution of the three-protein mixture, because peak widths decrease with velocity. Increased column length resulted in increased resolution, because the peak widths remained essentially constant, although retention times increased. In addition, it was found that the peak capacity increased with column length and linear velocity. Radial compression of the microbore tubing enhanced the homogeneity of the packing and, thereby, separation efficiency and resolution. Radial compression of columns resulted in a decrease in the interstitial fraction (~5%), but increased resolution of ~14% between ribonuclease A and cytochrome c. Even so, a linear velocity of 75 mm s(-1) required a backpressure of 9.5 MPa only. It is clear that the fluid and solute-transport properties of the C-CP fiber microbore columns afford far better performance than is obtainable by use of standard format columns. The ability to achieve high separation efficiencies, rapidly and with low volume flow rates, holds promise for high-capacity protein separations in proteomics applications.
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Affiliation(s)
- K Manoj Randunu
- Department of Chemistry, Clemson University, Clemson, SC 29634, USA
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25
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Perfusion reversed-phase high-performance liquid chromatography for protein separation from detergent-containing solutions: An alternative to gel-based approaches. Anal Biochem 2012; 424:97-107. [DOI: 10.1016/j.ab.2012.02.021] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2011] [Revised: 02/15/2012] [Accepted: 02/16/2012] [Indexed: 11/19/2022]
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Bibi NS, Gavara PR, Espinosa SLS, Grasselli M, Fernández-Lahore M. Synthesis and performance of 3D-Megaporous structures for enzyme immobilization and protein capture. Biotechnol Prog 2011; 27:1329-38. [DOI: 10.1002/btpr.648] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/03/2010] [Revised: 04/06/2011] [Indexed: 11/08/2022]
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27
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Fæste CK, Rønning HT, Christians U, Granum PE. Liquid chromatography and mass spectrometry in food allergen detection. J Food Prot 2011; 74:316-45. [PMID: 21333155 DOI: 10.4315/0362-028x.jfp-10-336] [Citation(s) in RCA: 57] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Abstract
Food allergy is an important issue in the field of food safety because of the hazards for affected persons and the hygiene requirements and legal regulations imposed on the food industry. Consumer protection and law enforcement require suitable analytical techniques for the detection of allergens in foods. Immunological methods are currently preferred; however, confirmatory alternatives are needed. The determination of allergenic proteins by liquid chromatography and mass spectrometry has greatly advanced in recent years, and gel-free allergenomics is becoming a routinely used approach for the identification and quantitation of food allergens. The present review provides a brief overview of the principles of proteomic procedures, various chromatographic set ups, and mass spectrometry instrumentation used in allergenomics. A compendium of published liquid chromatography methods, proteomic analyses, typical marker peptides, and quantitative assays for 14 main allergy-causing foods is also included.
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Affiliation(s)
- Christiane Kruse Fæste
- Section of Chemistry, Department of Feed and Food Safety, National Veterinary Institute, P.O. Box 750 Sentrum, Oslo N-0106, Norway.
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Esteve C, Del Río C, Marina ML, García MC. First ultraperformance liquid chromatography based strategy for profiling intact proteins in complex matrices: application to the evaluation of the performance of olive ( Olea europaea L.) stone proteins for cultivar fingerprinting. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2010; 58:8176-8182. [PMID: 20575522 DOI: 10.1021/jf101305t] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/29/2023]
Abstract
There is a clear need for accelerating protein separations by HPLC. Different proposals have been developed including the use of perfusion and monolithic stationary phases. Nevertheless, these stationary phases, in some occasions, do not provide enough efficiency to resolve these large molecules when they are present in complex matrices. Although ultraperformance liquid chromatography (UPLC) columns have been successfully used for the efficient and rapid separation of small molecules, this is the first time these columns were proposed for the separation of intact proteins in a real complex matrix: the olive stone. Two different strategies were employed for the extraction of olive proteins: enzymatic assisted extraction and buffered extraction. Five different columns traditionally employed for the separation of proteins were used, and results were compared with those obtained when using different sub-2 microm particle columns. Separations obtained with sub-2 mum particle columns significantly improved the separations obtained with the other columns. This paper also demonstrates the applicability of protein profiles obtained from the olive stone for the discrimination among olive varieties.
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Affiliation(s)
- Clara Esteve
- Department of Analytical Chemistry, University of Alcala, Alcala de Henares, Madrid, Spain
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SUN G, SUN Y. PREPARATION OF A BIPOROUS POLYMERIC ADSORBENT FOR RAPID CHROMATOGRAPHIC PURIFICATION OF PLASMID DNA. ACTA POLYM SIN 2010. [DOI: 10.3724/sp.j.1105.2006.00994] [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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30
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Rapid characterisation of (glyphosate tolerant) transgenic and non-transgenic soybeans using chromatographic protein profiles. Food Chem 2009. [DOI: 10.1016/j.foodchem.2008.08.010] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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31
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Sinner FM, Gatschelhofer C, Mautner A, Magnes C, Buchmeiser MR, Pieber TR. Ring-opening metathesis polymerization-derived monolithic capillary columns for high-performance liquid chromatography. J Chromatogr A 2008; 1191:274-81. [DOI: 10.1016/j.chroma.2008.01.005] [Citation(s) in RCA: 35] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2007] [Revised: 12/28/2007] [Accepted: 01/04/2008] [Indexed: 11/26/2022]
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32
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Kanai Y, Oshima T, Baba Y. Synthesis of Highly Porous Chitosan Microspheres Anchored with 1,2-Ethylenedisulfide Moiety for the Recovery of Precious Metal Ions. Ind Eng Chem Res 2008. [DOI: 10.1021/ie070235k] [Citation(s) in RCA: 41] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Yuki Kanai
- Department of Applied Chemistry, Faculty of Engineering, University of Miyazaki, 1-1 Gakuen-Kibanadai Nishi, Miyazaki 889-2192, Japan
| | - Tatsuya Oshima
- Department of Applied Chemistry, Faculty of Engineering, University of Miyazaki, 1-1 Gakuen-Kibanadai Nishi, Miyazaki 889-2192, Japan
| | - Yoshinari Baba
- Department of Applied Chemistry, Faculty of Engineering, University of Miyazaki, 1-1 Gakuen-Kibanadai Nishi, Miyazaki 889-2192, Japan
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33
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Liquid chromatography of recombinant proteins and protein drugs. J Chromatogr B Analyt Technol Biomed Life Sci 2008; 866:133-53. [DOI: 10.1016/j.jchromb.2008.01.041] [Citation(s) in RCA: 43] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/18/2007] [Revised: 12/17/2007] [Accepted: 01/18/2008] [Indexed: 01/12/2023]
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34
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Everley RA, Croley TR. Ultra-performance liquid chromatography/mass spectrometry of intact proteins. J Chromatogr A 2008; 1192:239-47. [PMID: 18417140 DOI: 10.1016/j.chroma.2008.03.058] [Citation(s) in RCA: 46] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2008] [Revised: 03/18/2008] [Accepted: 03/19/2008] [Indexed: 10/22/2022]
Abstract
Given that numerous small molecule applications of ultra-performance liquid chromatography (UPLC) have been published, efforts were made to examine the potential of UPLC to enhance the separation of intact proteins. Beginning with typically employed conditions, column temperature and organic solvent were optimized followed by an HPLC vs. UPLC comparison. When applied to a mixture of 10 protein standards, the optimized method yielded improved chromatographic resolution, enhanced sensitivity, and a threefold increase in throughput. Subsequent cell lysate analysis demonstrated no compromise in chromatographic or mass spectral data quality at 1/3 of the original run time.
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Affiliation(s)
- Robert A Everley
- Commonwealth of Virginia, Division of Consolidated Laboratory Services, 600 N. 5th Street, Richmond, VA 23219, USA
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35
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Xia HF, Lin DQ, Yao SJ. Preparation and characterization of macroporous cellulose–tungsten carbide composite beads for expanded bed applications. J Chromatogr A 2007; 1175:55-62. [DOI: 10.1016/j.chroma.2007.10.004] [Citation(s) in RCA: 53] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2007] [Revised: 09/28/2007] [Accepted: 10/04/2007] [Indexed: 11/25/2022]
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36
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Heras JM, Marina ML, García MC. Development of a perfusion ion-exchange chromatography method for the separation of soybean proteins and its application to cultivar characterization. J Chromatogr A 2007; 1153:97-103. [PMID: 17222854 DOI: 10.1016/j.chroma.2006.12.052] [Citation(s) in RCA: 15] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/24/2006] [Revised: 12/01/2006] [Accepted: 12/15/2006] [Indexed: 11/22/2022]
Abstract
A perfusion ion-exchange chromatography method has been designed, for the first time, for the separation of soybean proteins and its application to the characterization of soybean cultivars. For that purpose, the gradient, the mobile phase composition (buffer concentration, buffer pH, and elution salt), and the temperature were optimized. The method consisted of a two-step gradient (0% B for 2 min and from 0 to 50% B in 10 min) being mobile phase A a 2 0mM borate buffer (pH 9) and mobile phase B a 20 mM borate buffer (pH 9) containing 1M sodium chloride. The procedure used for the preparation of sample solutions was significantly simpler than that proposed by other authors and basically consisted of dissolving in water. This method enabled the separation of soybean proteins from a soybean protein isolate in 11 peaks in about 9 min. The method was used to separate soybean proteins in different commercial soybeans. In general, the 11 peaks yielded by the soybean protein isolate were also observed in the chromatograms of all soybeans. However, the area percentages of every peak in every soybean enabled the differentiation between soybeans. Moreover, the method was also used to separate soybean proteins in the proteic fractions obtained from every soybean. Multivariate methods were used for patterns recognition and the classification of samples.
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Affiliation(s)
- J M Heras
- Departamento de Química Analítica, Facultad de Química, Universidad de Alcalá, Ctra. Madrid-Barcelona Km. 33.600, 28871 Alcalá de Henares, Madrid, Spain
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37
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Saz JM, Marina ML. High performance liquid chromatography and capillary electrophoresis in the analysis of soybean proteins and peptides in foodstuffs. J Sep Sci 2007; 30:431-51. [PMID: 17444213 DOI: 10.1002/jssc.200600247] [Citation(s) in RCA: 34] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
The increasing interest in functional and healthy food products has promoted the use of soybean in the manufacture of foods for human consumption. Soybean basic products (soybeans, textured soybean, soybean flour, soybean protein concentrate and soybean protein isolate) as well as soybean derivatives (soybean dairy-like products, soybean drinks with fruits, meat analogues, etc.) are commercially available. In addition, due to the interesting nutritional and functional properties of soybean proteins, they are usually employed as ingredient in the elaboration of a large number of food products such as bakery or meat products among others. In spite of the good characteristics of soybean proteins, their addition to some products is forbidden or allowed up to a certain limit. Therefore, analytical methodologies to achieve the determination of soybean proteins in foods are necessary in order to make possible adequate quality control and to prove that legal regulations controlling their addition are accomplished. However, this is not an easy task due to the diversity and complexity of the food matrices and the technological treatments to which some of these foods are submitted during their elaboration. This article presents for the first time a comprehensive review on the analytical methodologies developed using HPLC and CE to characterize soybeans and to analyse soybean proteins in meals. Moreover, the use of HPLC and CE in the characterization of soybean protein fractions and their hydrolyzates, and a study of their relationships to nutritional, functional and biomedical properties are included. Finally, the application of proteomic methodologies in soybean food technology is also reviewed.
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Affiliation(s)
- José María Saz
- Departamento de Química Analítica, Facultad de Química, Universidad de Alcalá, Madrid, Spain
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38
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Concepción García M, Heras JM, Marina ML. Simple and rapid characterization of soybean cultivars by perfusion reversed-phase HPLC: application to the estimation of the 11S and 7S globulin contents. J Sep Sci 2007; 30:475-82. [PMID: 17444216 DOI: 10.1002/jssc.200600276] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Abstract
A perfusion RP HPLC method enabling the separation of soybean proteins in an analysis time lower than 3 min has been used to obtain the chromatographic profiles of different soybean cultivars. The chromatograms obtained for each soybean variety presented clear differences that justified the potential use of this method for cultivar characterization. The area percentages obtained were employed as variables for cluster and principal components analysis of these soybeans. The application of these multivariate methods enabled the grouping of the soybeans in different categories. The protein fractions obtained from these soybeans by the application of a fractionation method were also analyzed. The chromatographic profiles obtained enabled the assignment of peaks to the main soybean proteins (7S and 11S globulins). These data were used for the estimation, for the first time, of the 7S and 11S globulin contents in soybean cultivars.
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Affiliation(s)
- María Concepción García
- Departamento de Química Analítica, Facultad de Química, Universidad de Alcalá, Alcalá de Henares, Madrid, Spain
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39
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Wang DM, Hao G, Shi QH, Sun Y. Fabrication and characterization of superporous cellulose bead for high-speed protein chromatography. J Chromatogr A 2007; 1146:32-40. [PMID: 17300793 DOI: 10.1016/j.chroma.2007.01.089] [Citation(s) in RCA: 62] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2006] [Revised: 01/24/2007] [Accepted: 01/24/2007] [Indexed: 11/17/2022]
Abstract
Novel superporous cellulose (SC) matrix has been fabricated by water-in-oil emulsification-thermal regeneration using granules of calcium carbonate as porogenic agents. As a control, microporous cellulose (MC) bead was fabricated in the absence of calcium carbonate. Simultaneously, double cross-linking was applied to enhance the mechanical strength of the particles. The photographs by scanning electron microscopy of the SC bead illustrated that there were more "craters" of several microns scattering on the surface of the beads. It led to a higher water content and effective porosity of the SC medium. The two beads were then modified with diethylaminoethyl (DEAE) group to prepare anion exchangers. The dynamic uptake results of bovine serum albumin (BSA) exhibited that the pore diffusivity of BSA in the DEAE-SC bead was two to three times larger than that in the DEAE-MC bead. In addition, the column packed with the DEAE-SC showed lower backpressure, higher column efficiency and dynamic binding capacity than the column packed with the DEAE-MC at a flow rate range of 150-900cm/h. Moreover, the column efficiency of the DEAE-SC column was independent of flow velocity up to a flow rate of 1200cm/h. All the results exhibited the superior characteristics of the SC bead as a potential medium for high-speed protein chromatography.
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Affiliation(s)
- Dong-Mei Wang
- Department of Biochemical Engineering, School of Chemical Engineering and Technology, Tianjin University, Tianjin 300072, China
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40
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Jiang YY, Liu C, Hong MH, Zhu SJ, Pei YY. Tumor cell targeting of transferrin-PEG-TNF-alpha conjugate via a receptor-mediated delivery system: design, synthesis, and biological evaluation. Bioconjug Chem 2007; 18:41-9. [PMID: 17226956 DOI: 10.1021/bc060135f] [Citation(s) in RCA: 46] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
Abstract
PEGylation is a procedure of growing interest for enhancing the therapeutic and biotechnological potential of peptides and proteins. Transferrin (Tf) has been proposed to be useful for targeting cancer cells. The aim of this study was to modify PEGylated recombinant human tumor necrosis factor alpha (PEG-TNF-alpha) with Tf to form Tf-PEG-TNF-alpha conjugates, which would maintain the advantages of PEGylation and also achieve the function of active targeting to tumor cells. In PEGylation reactions with 5-, 20-, 40-, and 60-fold molar excess of 3.4 kDa N-hydroxysuccinimide-PEG-maleimide (PT1, PT2, PT3, and PT4, respectively), PEG-TNF-alpha conjugates with different PEG chains were synthesized. A perfusion chromatography technique using a cation-exchange column was introduced to purify PEG-TNF-alpha conjugates. PT4 with about five PEG chains was selected as a lead candidate due to highest extent of PEGylation and maximum reaction yield. Thiolated Tf was conjugated to the maleimide group at the distal end of the PEG chains on the PEG-TNF-alpha conjugates, with the resulting Tf-PEG-TNF-alpha conjugates after purification containing approximately one Tf ligand on one TNF-alpha molecule. The conjugate of Tf and PT4 (TPT4) was selected to assess the specificity and affinity to transferrin receptor (TfR) on two kinds of tumor cells, K562 and KB. Both the receptor binding assays and the competition experiments were performed using radioligand binding analysis. The results demonstrated that TPT4 as well as Tf bound specifically to the TfR on the tumor cell surface and the affinity of the conjugate to TfR was similar to that of native Tf. In contrast, PEG-TNF-alpha demonstrated no specificity. The biodistribution and antitumor effects were investigated in S-180 tumor-bearing mice. It was found that TPT4 could markedly alter in vivo behavioral characteristics of TNF-alpha. Compared with TNF-alpha and PT4, extravasated TPT4 in tumor tissues exhibited a significantly delayed blood clearance and the highest intratumoral TNF-alpha levels. Furthermore, the inhibitory rate of tumor of TPT4 enhanced 5.3- and 1.8-fold over that of TNF-alpha and PT4, indicating that TPT4 exhibited the highest antitumor activity. These results suggested that Tf-PEG-TNF-alpha was a useful long circulating conjugate with the capabilities of specific receptor binding resulting in enhanced antitumor activity of TNF-alpha.
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Affiliation(s)
- Yan-Yan Jiang
- Department of Pharmaceutics, School of Pharmacy, Fudan University, Shanghai, China, 200032
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41
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Issaq HJ, Fox SD, Mahadevan M, Conrads TP, Veenstra TD. Effect of Experimental Parameters on the HPLC Separation of Peptides and Proteins. J LIQ CHROMATOGR R T 2007. [DOI: 10.1081/jlc-120023246] [Citation(s) in RCA: 15] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Affiliation(s)
- Haleem J. Issaq
- a Analytical Chemistry Laboratory , SAIC‐Frederick, Inc. , NCI‐Frederick, P.O. Box B, Frederick , Maryland , 21702‐1201 , USA
| | - Stephen D. Fox
- a Analytical Chemistry Laboratory , SAIC‐Frederick, Inc. , NCI‐Frederick, P.O. Box B, Frederick , Maryland , 21702‐1201 , USA
| | - Megha Mahadevan
- a Analytical Chemistry Laboratory , SAIC‐Frederick, Inc. , NCI‐Frederick, P.O. Box B, Frederick , Maryland , 21702‐1201 , USA
| | - Thomas P. Conrads
- a Analytical Chemistry Laboratory , SAIC‐Frederick, Inc. , NCI‐Frederick, P.O. Box B, Frederick , Maryland , 21702‐1201 , USA
| | - Timothy D. Veenstra
- a Analytical Chemistry Laboratory , SAIC‐Frederick, Inc. , NCI‐Frederick, P.O. Box B, Frederick , Maryland , 21702‐1201 , USA
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42
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Rodríguez-Nogales JM, Garcia MC, Marina ML. Analysis of European and north american maize inbred and hybrid lines by monolithic and perfusion reversed-phase high-performance chromatography and multivariate analysis. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2006; 54:8702-9. [PMID: 17090110 DOI: 10.1021/jf061755d] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/12/2023]
Abstract
Monolithic and perfusion RP-HPLC methods have been employed for the separation of maize proteins from several European and North American inbred and hybrid lines in analysis times close to 4 min for the perfusion column and close to 8 min for the monolithic column. A study of the repeatability of the protein extraction conditions and of the perfusion and monolithic RP-HPLC methods was performed, indicating low values of variance for the relative peak areas and for the retention times. On the other hand, a low inter-kernel variability of these chromatographic parameters was also found, confirming the possibility of a variety identification and classification of maize inbred and hybrid lines by using a RP-HPLC analysis of the maize proteins. A multivariate analysis of the chromatographic data was carried out in order to characterize and identify the inbred and hybrid maize lines. Cluster analysis of the data showed how far or closely related were the maize lines. Principal component analysis showed that protein chromatographic data had enough information to distinguish between the different groups of maize lines. Finally, a linear discriminant analysis enabled the correct classification of the inbred and hybrid lines according to their geographical origin showing the best percentage of cases correctly classified for monolithic RP-HPLC.
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Affiliation(s)
- José Manuel Rodríguez-Nogales
- Departamento de Química Analítica e Ingeniería Química, Facultad de Química, Universidad de Alcala, 28871 Alcala de Henares, Madrid, Spain
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43
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SUN G, SHI Q, SUN Y. PREPARATION OF A BIPOROUS POLYMERIC ADSORBENT BY DOUBLE EMULSIFICATION FOR FLOWTHROUGH CHROMATOGRAPHY OF PROTEINS. ACTA POLYM SIN 2006. [DOI: 10.3724/sp.j.1105.2006.00279] [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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44
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Rodriguez-Nogales JM, Garcia MC, Marina ML. Development of a perfusion reversed-phase high performance liquid chromatography method for the characterisation of maize products using multivariate analysis. J Chromatogr A 2006; 1104:91-9. [PMID: 16337950 DOI: 10.1016/j.chroma.2005.11.066] [Citation(s) in RCA: 16] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/20/2005] [Revised: 11/17/2005] [Accepted: 11/18/2005] [Indexed: 10/25/2022]
Abstract
A perfusion reversed-phase high performance liquid chromatography (RP-HPLC) method has been designed to allow rapid (3.4 min) separations of maize proteins with high resolution. Several factors, such as extraction conditions, temperature, detection wavelength and type and concentration of ion-pairing agent were optimised. A fine optimisation of the gradient elution was also performed by applying experimental design. Commercial maize products for human consumption (flours, precocked flours, fried snacks and extruded snacks) were characterised for the first time by perfusion RP-HPLC and their chromatographic profiles allowed a differentiation among products relating the different technological process used for their preparation. Furthermore, applying discriminant analysis makes it possible to group the samples according with the technological process suffered by maize products, obtaining a good prediction in 92% of the samples.
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Affiliation(s)
- J M Rodriguez-Nogales
- Departamento de Química Analítica, Facultad de Química, Universidad de Alcalá, 28871 Alcalá de Henares, Madrid, Spain.
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45
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Sun GY, Yang Z, Dong XY, Sun Y. Biporous polymeric beads fabricated by double emulsification for high-speed protein chromatography. J Appl Polym Sci 2006. [DOI: 10.1002/app.23872] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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46
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Gu T, Zhou W, Ma G, Su Z. Rigid gigaporous chromatographic media and their potential impact on downstream processing. ACTA ACUST UNITED AC 2005. [DOI: 10.1016/s1672-2515(07)60214-0] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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47
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Li Y, Shi QH, Sun Y. Rapid Chiral Separation by Flow-Through Chromatography with a Biporous Stationary Phase. Chromatographia 2005. [DOI: 10.1365/s10337-005-0508-9] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
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48
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Castro-Rubio F, García MC, Rodríguez R, Marina ML. Simple and inexpensive method for the reliable determination of additions of soybean proteins in heat-processed meat products: an alternative to the AOAC official method. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2005; 53:220-226. [PMID: 15656653 DOI: 10.1021/jf049557e] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/24/2023]
Abstract
Despite the existence of an AOAC official method based on an enzyme-linked immunosorbent assay (ELISA) for the determination of additions of soybean proteins in meat products, its use for quantitative assessment is limited. Accordingly, a simple and inexpensive method has been developed and validated in this work. The method involves defatting the meat samples with acetone, solubilization of soybean proteins in a 30 mM Tris-HCl buffer (pH 8) containing 0.5% (v/v) 2-mercaptoethanol, and the identification of two peaks from soybean proteins in the chromatogram obtained by perfusion reversed-phase chromatography and UV detection. Determination of soybean proteins by the proposed method did not suffer from matrix interferences, with a good linear correlation up to a concentration of 12.50 mg/mL soybean proteins being observed. The proposed method was proven to be specific, precise, accurate, robust, and sensitive, making possible the detection and the quantitation of additions of 0.07% (w/w) and 0.25% (w/w), respectively, of soybean proteins in meat products (related to 1 g of initial product). The method has been applied to the determination of the soybean protein content in commercial heat-processed meat products, obtaining results that were statistically similar to those obtained by the official ELISA method but with a higher reliability and simplicity and a lower cost and analysis time.
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Affiliation(s)
- Florentina Castro-Rubio
- Departamento de Química Analítica, Facultad de Química, Universidad de Alcalá, 28871 Alcalá de Henares, Madrid, Spain
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49
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Sun GY, Shi QH, Sun Y. Novel biporous polymeric stationary phase for high-speed protein chromatography. J Chromatogr A 2004; 1061:159-65. [PMID: 15641358 DOI: 10.1016/j.chroma.2004.10.101] [Citation(s) in RCA: 36] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
Abstract
A novel rigid biporous bead (BiPB) had been fabricated by double emulsification to prepare a (w/o)/w emulsion and a subsequent polymerization. The polymerization of monomers, glycidyl methacrylate and ethylene glycol dimethacrylate, was initiated with benzoin ethyl ether by ultraviolet irradiation. The BiPB with an average diameter of 42.8 microm was characterized to possess two types of pores, i.e., micropores (20-100nm) and superpores (300-4000nm). Its specific surface area was determined to be 41.9m2/g, about 20% smaller than that of a microporous bead (MiPB) (52.1 m2/g). Flow hydrodynamic experiments showed that the BiPB column had smaller backpressure and plate height than those of the MiPB column at a given flow rate. Derivatized with diethylamine (DEA), the static adsorption capacity of the DEA-BiPB was about 7% smaller than that of the DEA-MiPB for BSA (bovine serum albumin). However, frontal analysis demonstrated that the dynamic binding capacity of the DEA-BiPB column was 1.6-2.4 times higher than that of the DEA-MiPB at high flow rate range of 1200-2400cm/h. Moreover, separation of a model protein mixture (myoglobin and BSA) was conducted at mobile phase velocities up to 3000cm/h to compare the performance of the two stationary phases. All the results indicate that the BiPB contains interconnected flowthrough pores and the BiPB column is promising for high-speed protein chromatography.
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Affiliation(s)
- Guo-Yong Sun
- Department of Biochemical Engineering, School of Chemical Engineering and Technology, Tianjin University, Tianjin 300072, China
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50
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Losso JN, Bansode RR, Bawadi HA. Perfusion chromatography purification of a 15 kDa rice prolamin. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2003; 51:7122-7126. [PMID: 14611182 DOI: 10.1021/jf020428c] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/24/2023]
Abstract
Prolamin extracted from rice flour using 55% n-propanol contained protein impurities. Reverse phase high-performance liquid chromatography (HPLC) on a perfusion column R2/H was used to separate rice prolamin from other proteins in less than 5 min. Prolamin eluted as the major peak. The isolated prolamin migrated as a single band on sodium dodecyl sulfate polyacrylamide gel electrophoresis using a 4-12% Bis-Tris gel. Matrix-assisted laser desorption ionization mass spectrometry identified the rice prolamin as a 15 013 Da protein. The surface hydrophobicity (S(o)) of the HPLC-separated protein fractions was measured using the hydrophobic fluorescent probe PRODAN. A comparison was made with the surface hydrophobicity (S(o)) of corn prolamin and bovine serum albumin. Surface hydrophobicity values and solubility in 90% ethanol assisted in rice prolamin identification from other chromatographic peaks. The advantage of perfusion chromatography in purifying rice prolamin from other rice proteins included the reduced separation time, the speed at which the separation was carried, and the ability to regenerate the column in a short period of time and allow for more samples to be purified and separated.
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Affiliation(s)
- Jack N Losso
- Food Protein Biotechnology Laboratory, Department of Food Science, Louisiana State University Agricultural Center, 111 Food Science Building, Baton Rouge, Louisiana 70803-4200, USA.
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