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Ribeiro J, Luís MÂ, Rodrigues B, Santos FM, Mesquita J, Boto R, Tomaz CT. Cryogels and Monoliths: Promising Tools for Chromatographic Purification of Nucleic Acids. Gels 2024; 10:198. [PMID: 38534616 DOI: 10.3390/gels10030198] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/17/2024] [Revised: 03/09/2024] [Accepted: 03/11/2024] [Indexed: 03/28/2024] Open
Abstract
The increasing demand for highly pure biopharmaceuticals has put significant pressure on the biotechnological industry to innovate in production and purification processes. Nucleic acid purification, crucial for gene therapy and vaccine production, presents challenges due to the unique physical and chemical properties of these molecules. Meeting regulatory standards necessitates large quantities of biotherapeutic agents of high purity. While conventional chromatography offers versatility and efficiency, it suffers from drawbacks like low flow rates and binding capacity, as well as high mass transfer resistance. Recent advancements in continuous beds, including monoliths and cryogel-based systems, have emerged as promising solutions to overcome these limitations. This review explores and evaluates the latest progress in chromatography utilizing monolithic and cryogenic supports for nucleic acid purification.
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Affiliation(s)
- João Ribeiro
- CICS-UBI-Health Sciences Research Centre, University of Beira Interior, 6201-506 Covilhã, Portugal
- Department of Chemistry, University of Beira Interior, Rua Marquês de Ávila e Bolama, 6201-001 Covilhã, Portugal
| | - Marco  Luís
- CICS-UBI-Health Sciences Research Centre, University of Beira Interior, 6201-506 Covilhã, Portugal
- Department of Chemistry, University of Beira Interior, Rua Marquês de Ávila e Bolama, 6201-001 Covilhã, Portugal
| | - Bruno Rodrigues
- CICS-UBI-Health Sciences Research Centre, University of Beira Interior, 6201-506 Covilhã, Portugal
- Department of Chemistry, University of Beira Interior, Rua Marquês de Ávila e Bolama, 6201-001 Covilhã, Portugal
| | - Fátima Milhano Santos
- Functional Proteomics Laboratory, Centro Nacional de Biotecnología, Consejo Superior de Investigaciones Científicas (CSIC), Calle Darwin 3, Campus de Cantoblanco, 28049 Madrid, Spain
| | - Joana Mesquita
- CICS-UBI-Health Sciences Research Centre, University of Beira Interior, 6201-506 Covilhã, Portugal
| | - Renato Boto
- CICS-UBI-Health Sciences Research Centre, University of Beira Interior, 6201-506 Covilhã, Portugal
- Department of Chemistry, University of Beira Interior, Rua Marquês de Ávila e Bolama, 6201-001 Covilhã, Portugal
| | - Cândida Teixeira Tomaz
- CICS-UBI-Health Sciences Research Centre, University of Beira Interior, 6201-506 Covilhã, Portugal
- Department of Chemistry, University of Beira Interior, Rua Marquês de Ávila e Bolama, 6201-001 Covilhã, Portugal
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Ma Y, Xiang Y, Li X, Zhang D, Chen Q. Recombinant streptococcal protein G-modified metal-organic framework ZIF-8 for the highly selective purification of immunoglobulin G from human serum. Anal Chim Acta 2024; 1288:342175. [PMID: 38220305 DOI: 10.1016/j.aca.2023.342175] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/07/2023] [Revised: 11/28/2023] [Accepted: 12/21/2023] [Indexed: 01/16/2024]
Abstract
A novel solid phase extractant His-rSPG@ZIF-8 was prepared by covalently coupling recombinant streptococcal protein G (His-rSPG) with ZIF-8. The His-rSPG@ZIF-8 composite was characterized by Fourier transform infrared spectroscopy (FT-IR), Raman spectroscopy (Raman), X-ray photoelectron spectroscopy (XPS), scanning electron microscopy (SEM) and transmission electron microscopy (TEM). Due to the specific binding between the immunoglobulin binding region of His-rSPG and the Fc region of immunoglobulin G (IgG), the His-rSPG@ZIF-8 composite demonstrated exceptional selectivity in adsorbing IgG. In Britton-Robinson buffer (BR buffer) with a salt concentration of 500 mmol L-1 (0.04 mol L-1, pH 8.0), the His-rSPG@ZIF-8 composite exhibited a remarkable adsorption efficiency of 99.8 % for 0.05 mg of the composite on 200 μL of IgG solution (100 μg mL-1). The adsorption behavior of the His-rSPG@ZIF-8 composite aligns with the Langmuir adsorption model, and the theoretical maximum adsorption capacity is 1428.6 mg g-1. The adsorbed IgG molecules were successfully eluted using a SDS solution (0.5 %, m/m), resulting in a recovery rate of 91.2 %. Indeed, the His-rSPG@ZIF-8 composite was successfully utilized for the isolation and purification of IgG from human serum samples. The obtained IgG exhibited high purity, as confirmed by SDS-PAGE analysis. Additionally, LC-MS/MS analysis was employed to identify the human serum proteins following the adsorption and elution process using the His-rSPG@ZIF-8 composite material. The results revealed that the recovered solution contained an impressive content of immunoglobulin, accounting for 62.4 % of the total protein content. Furthermore, this process also led to the significant enrichment of low abundance proteins such as Serpin B4 and Cofilin-1. Consequently, the His-rSPG@ZIF-8 composite holds great promise for applications such as IgG purification and immunoassays. At the same time, it expands the application of metal-organic frameworks in the field of proteomics.
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Affiliation(s)
- Yufei Ma
- School of Pharmacy, Shenyang Medical College, Shenyang, 110034, People's Republic of China
| | - Yuhan Xiang
- School of Pharmacy, Shenyang Medical College, Shenyang, 110034, People's Republic of China
| | - Xin Li
- Department of Science and Technology, Shenyang Medical College, Shenyang, 110034, People's Republic of China.
| | - Dandan Zhang
- School of Public Health, Shenyang Medical College, Shenyang, 110034, People's Republic of China.
| | - Qing Chen
- School of Pharmacy, Shenyang Medical College, Shenyang, 110034, People's Republic of China.
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Baydemir Peşint G, Eren Yüngeviş B, Perçin Demirçelik I. Enhanced invertase binding from baker's yeast via cryogels included boronic acids. World J Microbiol Biotechnol 2023; 39:267. [PMID: 37528302 DOI: 10.1007/s11274-023-03697-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2023] [Accepted: 07/08/2023] [Indexed: 08/03/2023]
Abstract
Invertase, an industrially significant glycoenzyme, was purified from baker's yeast using poly (2-Hydroxyethyl methacrylate) [PHema-Pba] cryogels functionalized with boronic acid. At subzero temperatures, PHema-Pba cryogels were synthesized and characterized using swelling tests, scanning electron microscopy, and Fourier-transform infrared spectroscopy. The surface area of the PHema-Pba cryogels was 14 m2/g with a swelling ratio of 88.3% and macroporosity of 72%. The interconnected macropores of PHema-Pba cryogels were shown via scanning electron microscopy. Invertase binding capacity of PHema-Pba cryogel was evaluated by binding studies in different pH, temperature, and interaction time conditions and the maximum Invertase binding of PHema-Pba cryogel was found as 15.2 mg/g. and 23.7 fold Invertase purification was achieved from baker's yeast using PHema-Pba cryogels. The results show that PHema-Pba cryogels have high Invertase binding capacity and may be used as an alternative method for enzyme purification via boronate affinity systems.
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Affiliation(s)
- Gözde Baydemir Peşint
- Department of Bioengineering, Adana Alparslan Türkeş Science and Technology University, Adana, Türkiye.
| | - Burcu Eren Yüngeviş
- Department of Bioengineering, Adana Alparslan Türkeş Science and Technology University, Adana, Türkiye
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Chi Z, Wu X, Zhang Q, Zhai F, Xu Z, Zhang D, Chen Q. Titanium-based metal-organic framework MIL-125(Ti) for the highly selective isolation and purification of immunoglobulin G from human serum. J Sep Sci 2022; 45:3754-3762. [PMID: 35933591 DOI: 10.1002/jssc.202200357] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/02/2022] [Revised: 07/27/2022] [Accepted: 07/29/2022] [Indexed: 11/10/2022]
Abstract
Titanium-based metal-organic framework MIL-125(Ti) was synthesized by the hydrothermal method of terephthalic acid and tetra butyl titanate in N-N dimethylformamide and methanol. MIL-125(Ti) was characterized by Fourier transform infrared spectroscopy, X-ray diffraction, thermogravimetric analysis, nitrogen adsorption-desorption, energy-dispersive X-ray spectroscopy, zeta potential, scanning electron microscope and transmission electron microscopy. The results showed MIL-125(Ti) could be used as a potential adsorbent for protein separation and purification due to the high specific surface area, high stability and strong hydrophobicity. As a result, MIL-125(Ti) had adsorption selectivity for immunoglobulin G, which was due to hydrogen bond between MIL-125(Ti) and protein. At pH 8.0, the maximum adsorption efficiency of 0.25 mg MIL-125(Ti) for 300 μL 100 μg mL-1 immunoglobulin G was 98.3%, and its maximum adsorption capacity was 232.56 mg g-1 . The elution efficiency of immunoglobulin G was 92.4% by 0.1% SDS. SDS-PAGE result demonstrated the successful isolation of highly purified immunoglobulin G from the human serum. Therefore, a new method of separation and purification of immunoglobulin G in human serum using titanium-based metal-organic framework MIL-125(Ti) as a solid-phase adsorbent was established, which broadened the application scope of metal-organic frameworks. This article is protected by copyright. All rights reserved.
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Affiliation(s)
- Zixin Chi
- Shenyang Medical College, Shenyang, 110034, People's Republic of China
| | - Xi Wu
- Liaoning University, Shenyang, 110036, People's Republic of China
| | - Qiqi Zhang
- Shenyang Medical College, Shenyang, 110034, People's Republic of China
| | - Fengyang Zhai
- Shenyang Medical College, Shenyang, 110034, People's Republic of China
| | - Zesheng Xu
- Shenyang Medical College, Shenyang, 110034, People's Republic of China
| | - Dandan Zhang
- Shenyang Medical College, Shenyang, 110034, People's Republic of China
| | - Qing Chen
- Shenyang Medical College, Shenyang, 110034, People's Republic of China
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Jiao F, Cao F, Gao Y, Shuang F, Dong D. A biosensor based on a thermal camera using infrared radiance as the signal probe. Talanta 2022; 246:123453. [DOI: 10.1016/j.talanta.2022.123453] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/25/2022] [Revised: 03/31/2022] [Accepted: 04/03/2022] [Indexed: 12/13/2022]
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Coupling of multivariate curve resolution-alternating least squares and mechanistic hard models to investigate antibody purification from human plasma using ion exchange chromatography. J Chromatogr A 2022; 1675:463168. [PMID: 35667219 DOI: 10.1016/j.chroma.2022.463168] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/05/2022] [Revised: 05/19/2022] [Accepted: 05/19/2022] [Indexed: 11/21/2022]
Abstract
A two steps proposal for the purification of immunoglobulin G from human blood plasma is investigated. The first step is precipitation using cold ethanol based on the Cohn method with some modification and the second step is a chromatographic separation by DEAE-Sepharose FF resin as a weak anion exchanger. The presence of interferent in the region3 of chromatographic fractions, which is co-eluted with IgG, restricts the application of the mechanistic chromatography model. Therefore, multivariate cure resolution-alternating least squares (MCR-ALS) as a soft method is employed on measured absorbance data matrix from eluted fractions to recover pure concentration and spectral profiles. Besides, possible solutions for resolved concentration and spectral profiles are investigated. The reaction-dispersive model as a mechanistic hard model for the column is utilized for the evaluation of the ion exchange chromatography. Using a genetic algorithm as a global optimization method, mobile phase modulator (MPM) adsorption model parameters such as β, kdes,0, and Keq,0, were fitted to the concentration profiles from MCR-ALS as 1.96, 2.87×10-4 m3 mol-1s-1, and 1883, respectively. Furthermore, a new resampling incorporated non-parametric statistics is conducted to assess parameters' uncertainty. Values of 2.00, 1.10×10-3 m3 mol-1s-1, and 549.80 are estimated median, and values of 0.05, 2.5×10-3, and 691.00 are calculated interquartile range (IQR) for β, kdes,0, and Keq,0, respectively. Finally, results show three and two outliers for β and kdes,0, respectively.
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Asena Özbek M, Çimen D, Bereli N, Denizli A. Metal-chelated polyamide hollow fiber membranes for ovalbumin purification from egg white. J Chromatogr B Analyt Technol Biomed Life Sci 2022; 1203:123293. [DOI: 10.1016/j.jchromb.2022.123293] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2021] [Revised: 03/17/2022] [Accepted: 05/08/2022] [Indexed: 12/17/2022]
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Bakhshpour M, Chiodi E, Celebi I, Saylan Y, Ünlü NL, Ünlü MS, Denizli A. Sensitive and real-time detection of IgG using interferometric reflecting imaging sensor system. Biosens Bioelectron 2022; 201:113961. [PMID: 35026547 DOI: 10.1016/j.bios.2021.113961] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/11/2021] [Revised: 12/20/2021] [Accepted: 12/31/2021] [Indexed: 11/16/2022]
Abstract
Considering the limitations of well-known traditional detection techniques, innovative research studies have focused on the development of new sensors to offer label-free, highly sensitive, real-time, low-cost, and rapid detection for biomolecular interactions. In this study, we demonstrate immunoglobulin G (IgG) detection in aqueous solutions by using real-time and label-free kinetic measurements of the Interferometric Reflectance Imaging Sensor (IRIS) system. By performing kinetic characterization experiments, the sensor's performance is comprehensively evaluated and a high correlation coefficient value (>0.94) is obtained in the IgG concentration range of 1-50 μg/mL with a low detection limit (0.25 μg/mL or 1.67 nM). Moreover, the highly sensitive imaging system ensures accurate quantification and reliable validation of recorded binding events, offering new perspectives in terms of direct biomarker detection for clinical applications.
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Affiliation(s)
- Monireh Bakhshpour
- Hacettepe University, Department of Chemistry, Ankara, Turkey; Boston University, Department of Electrical and Computer Engineering, Boston, MA, United States
| | - Elisa Chiodi
- Boston University, Department of Electrical and Computer Engineering, Boston, MA, United States
| | - Iris Celebi
- Boston University, Department of Electrical and Computer Engineering, Boston, MA, United States
| | - Yeşeren Saylan
- Hacettepe University, Department of Chemistry, Ankara, Turkey
| | - Nese Lortlar Ünlü
- Boston University, Department of Biomedical Engineering, Boston, MA, United States
| | - M Selim Ünlü
- Boston University, Department of Electrical and Computer Engineering, Boston, MA, United States; Boston University, Department of Biomedical Engineering, Boston, MA, United States
| | - Adil Denizli
- Hacettepe University, Department of Chemistry, Ankara, Turkey.
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Wang Y, Wei Y, Xu Q, Shao S, Man H, Nie Y, Wang Z, Jiang Y. Fabrication of Yolk-Shell Fe 3O 4@NiSiO 3/Ni Microspheres for Efficient Purification of Histidine-Rich Proteins. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2021; 37:14167-14176. [PMID: 34839664 DOI: 10.1021/acs.langmuir.1c02433] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
Magnetic materials perform well in the purification of histidine-rich proteins (His-proteins). In this work, a facile fabrication of yolk-shell magnetic Fe3O4@NiSiO3/Ni microspheres for the efficient purification of His-proteins has been reported. Yolk-shell Fe3O4@NiSiO3 microspheres were prepared via hydrothermal reaction. Then Ni nanoparticles (NPs) were loaded on Fe3O4@NiSiO3 microspheres after the adsorption and in situ reduction of nickel acetylacetonate. The yolk-shell Fe3O4@NiSiO3/Ni microspheres had a hierarchical flower-like structure and large cavities. The size of the cavity depended on the reaction time. This indicated that the microspheres had a large specific surface area for loading of more Ni NPs, which was crucial to the high His-protein adsorption capacity of Fe3O4@NiSiO3/Ni microspheres. Fe3O4@NiSiO3/Ni microspheres had a high adsorption capacity for bovine hemoglobin (BHb, 2822 mg/g), which was better than the values of other His-protein adsorbents. Fe3O4@NiSiO3/Ni microspheres still had a high BHb separation efficiency after seven separation cycles, indicating its good reusability and stability. Therefore, the as-prepared bifunctional yolk-shell Fe3O4@NiSiO3/Ni microspheres exhibited great practical application value for His-protein purification.
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Affiliation(s)
- Yang Wang
- School of Chemistry and Chemical Engineering, Jiangsu Province Hi-Tech Key Laboratory for Biomedical Research, Southeast University, Nanjing 211189, P. R. China
| | - Yingying Wei
- School of Chemistry and Chemical Engineering, Jiangsu Province Hi-Tech Key Laboratory for Biomedical Research, Southeast University, Nanjing 211189, P. R. China
| | - Qianrui Xu
- School of Chemistry and Chemical Engineering, Jiangsu Province Hi-Tech Key Laboratory for Biomedical Research, Southeast University, Nanjing 211189, P. R. China
| | - Shimin Shao
- School of Chemistry and Chemical Engineering, Jiangsu Province Hi-Tech Key Laboratory for Biomedical Research, Southeast University, Nanjing 211189, P. R. China
| | - Hong Man
- School of Chemistry and Chemical Engineering, Jiangsu Province Hi-Tech Key Laboratory for Biomedical Research, Southeast University, Nanjing 211189, P. R. China
| | - Yingrui Nie
- School of Chemistry and Chemical Engineering, Jiangsu Province Hi-Tech Key Laboratory for Biomedical Research, Southeast University, Nanjing 211189, P. R. China
| | - Zhifei Wang
- School of Chemistry and Chemical Engineering, Jiangsu Province Hi-Tech Key Laboratory for Biomedical Research, Southeast University, Nanjing 211189, P. R. China
| | - Yong Jiang
- School of Chemistry and Chemical Engineering, Jiangsu Province Hi-Tech Key Laboratory for Biomedical Research, Southeast University, Nanjing 211189, P. R. China
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Poddar S, Sharmeen S, Hage DS. Affinity monolith chromatography: A review of general principles and recent developments. Electrophoresis 2021; 42:2577-2598. [PMID: 34293192 DOI: 10.1002/elps.202100163] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2021] [Revised: 07/07/2021] [Accepted: 07/18/2021] [Indexed: 12/28/2022]
Abstract
Affinity monolith chromatography (AMC) is a liquid chromatographic technique that utilizes a monolithic support with a biological ligand or related binding agent to isolate, enrich, or detect a target analyte in a complex matrix. The target-specific interaction exhibited by the binding agents makes AMC attractive for the separation or detection of a wide range of compounds. This article will review the basic principles of AMC and recent developments in this field. The supports used in AMC will be discussed, including organic, inorganic, hybrid, carbohydrate, and cryogel monoliths. Schemes for attaching binding agents to these monoliths will be examined as well, such as covalent immobilization, biospecific adsorption, entrapment, molecular imprinting, and coordination methods. An overview will then be given of binding agents that have recently been used in AMC, along with their applications. These applications will include bioaffinity chromatography, immunoaffinity chromatography, immobilized metal-ion affinity chromatography, and dye-ligand or biomimetic affinity chromatography. The use of AMC in chiral separations and biointeraction studies will also be discussed.
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Affiliation(s)
- Saumen Poddar
- Department of Chemistry, University of Nebraska-Lincoln, Lincoln, Nebraska, 68588, USA
| | - Sadia Sharmeen
- Department of Chemistry, University of Nebraska-Lincoln, Lincoln, Nebraska, 68588, USA
| | - David S Hage
- Department of Chemistry, University of Nebraska-Lincoln, Lincoln, Nebraska, 68588, USA
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Zhang Y, Qi X, Yao S, Gao S, Xu S, Wang H, Liu X, An Y. Construction of novel curdlan-based and Ca 2+-chelated magnetic microspheres (CCMM) for efficient protein purification and oriented immobilization. Enzyme Microb Technol 2021; 148:109802. [PMID: 34116763 DOI: 10.1016/j.enzmictec.2021.109802] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/09/2021] [Revised: 03/12/2021] [Accepted: 04/09/2021] [Indexed: 11/30/2022]
Abstract
In this study, curdlan-based and calcium ion (Ca2+)-chelated magnetic microspheres (CCMM) were prepared for protein purification and oriented immobilization. Additional purification steps before immobilization were not required. CCMM samples were produced by reverse embedding of Fe3O4 nanoparticles with curdlan and chelated with Ca2+ in the presence of iminodiacetic acid. The β-xylanase XynII from Trichoderma reesei QM6a was used to investigate the efficiency of CCMM preparation. The resulting CCMM-XynII was found to be very stable, showing 82 % and 60 % of initial activities after storage for 35 days and after being assayed ten times, respectively. In addition, the CCMM-XynII showed higher stabilities in the presence of organic solvents and multiple chemicals than the free XynII, suggesting that the CCMM-XynII could be efficient for applications requiring the presence of organic solvents. In addition, CCMM may be more suitable than commercially available Ni-NTA for purification of proteins intolerant of Ni2+.
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Affiliation(s)
- Yifeng Zhang
- College of Food Science, Shenyang Agricultural University, No.120 Dongling Road, Shenyang, 110161, China; College of Biosciences and Biotechnology, Shenyang Agricultural University, Shenyang, China.
| | - Xianghui Qi
- School of Food and Biological Engineering, Jiangsu University, Zhenjiang, China.
| | - Shuo Yao
- College of Biosciences and Biotechnology, Shenyang Agricultural University, Shenyang, China.
| | - Song Gao
- College of Biosciences and Biotechnology, Shenyang Agricultural University, Shenyang, China.
| | - Shumin Xu
- College of Food Science, Shenyang Agricultural University, No.120 Dongling Road, Shenyang, 110161, China; College of Biosciences and Biotechnology, Shenyang Agricultural University, Shenyang, China.
| | - Hongling Wang
- College of Food Science, Shenyang Agricultural University, No.120 Dongling Road, Shenyang, 110161, China; College of Biosciences and Biotechnology, Shenyang Agricultural University, Shenyang, China.
| | - Xia Liu
- College of Biosciences and Biotechnology, Shenyang Agricultural University, Shenyang, China.
| | - Yingfeng An
- College of Food Science, Shenyang Agricultural University, No.120 Dongling Road, Shenyang, 110161, China; College of Biosciences and Biotechnology, Shenyang Agricultural University, Shenyang, China.
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Performance of phospho-L-tyrosine immobilized onto alginate/polyacrylamide-based cryogels: Effect of ligand coupling on human IgG adsorption and Fab fragments separation. J Chromatogr B Analyt Technol Biomed Life Sci 2021; 1165:122530. [PMID: 33486219 DOI: 10.1016/j.jchromb.2021.122530] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/11/2020] [Revised: 12/23/2020] [Accepted: 01/04/2021] [Indexed: 11/24/2022]
Abstract
The ortho-phospho-tyrosine (P-Tyr) pseudoaffinity ligand was immobilized via ether linkage onto polyacrylamide-alginate (PAAm-Alg)-epoxy cryogels prepared according to two different approaches in order to explore their performance in the immunoglobulin G (IgG) purification from human serum. In the first approach, the P-Tyr was attached to cryogel prepared by cryocopolymerization of acrylamide and alginate with allyl glycidyl ether (AGE) as functional comonomer, and methylenebisacrylamide and Ca(II) as crosslinkers, obtaining the PAAm-Alg-AGE-P-Tyr. In the second approach, the PAAm-Alg was synthesized under the same conditions, but without AGE, and the P-Tyr was coupled to epichlorohydrin (ECH)-activated cryogel, obtaining the PAAm-Alg-ECH-P-Tyr. Both pseudoaffinity cryogels were characterized by scanning electron microscopy, swelling tests, porosity, ligand density, and flow dynamics. The human IgG differently interacted with the PAAm-Alg-ECH-P-Tyr and PAAm-Alg-AGE-P-Tyr cryogels, depending on the pH and adsorption buffer system used. The selectivity analyzed by electrophoretic profiles was similar for both cryogels, but PAAm-Alg-ECH-P-Tyr achieved higher IgG adsorption capacity (dynamic capacity of 12.62 mg of IgG/mL of cryogel). The IgG purity assayed by ELISA was 95%. The maximum IgG adsorption capacity and dissociation constant of the PAAm-Alg-ECH-P-Tyr, determined by Langmuir isotherm, were found to be 91.75 mg IgG/g of dry cryogel and 4.60 × 10-6 mol/L at pH 6.0 from aqueous solutions. The PAAm-Alg-AGE-P-Tyr showed potential to purify the Fab fragments from papain-digested human IgG solution at pH 7.0. Fab fragments were separated from Fc fragments (but with uncleaved IgG) in eluted fractions (analyzed by the Western blot technique), with yield of 82% and purity of 95% (determined by radial immunodiffusion).
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Ghorbani J, Kompany-Zareh M, Tahmasebi E. Antibodies purification from human plasma using fractionation, chromatography and gel electrophoresis assisted by multivariate analysis of complimentary absorption and fluorescence spectra. J Chromatogr B Analyt Technol Biomed Life Sci 2021; 1167:122526. [PMID: 33636588 DOI: 10.1016/j.jchromb.2021.122526] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2020] [Revised: 12/22/2020] [Accepted: 01/02/2021] [Indexed: 10/22/2022]
Abstract
Employing simple precipitation (fractionation) using Cohn method and weak anion exchange chromatography with DEAE resin, antibodies such as Immunoglobulin G are purified from human plasma. Fractions are eluted from column in four different regions depending on washing NaCl concentrations. Absorbance and excitation-emission fluorescence spectral data are measured for separated chromatographic fractions and analyzed using Multivariate Curve Resolution- Alternating Least Squares (MCR-ALS) and Parallel Factor Analysis (PARAFAC) techniques. Resolved concentration and spectral profiles provided information about existing components in each fraction. Protein and non-protein components are distinguished considering their resolved pure spectra and information from the two applied spectroscopic techniques is complementary. A number of components displayed both fluorescence and absorbance signals. When concentration of component (protein or non-protein) in sample is low and no significant absorbance signal is observed, sensitive fluorescence is useful to recognize the component and for non-fluorescent components absorbance spectra are utilized. Electrophoresis is utilized for separation of proteins in each fraction and showed that one distinguished protein from fluorescence and/or absorbance data can be a group of proteins with similar pure spectra and retention volume. Results showed presence of two protein in the first region (IgM and IgA), a group of proteins in second region (IgM, α-globulin, and IgG), a pure protein in third region (IgG), and a group of β-globulin proteins in fifth region. It is well and clearly shown that multivariate analysis of different data sets with complementary information is necessary for better interpretation of such technically simple and biochemically complicated systems.
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Affiliation(s)
- Javad Ghorbani
- Chemistry Department, Institute for Advanced Studies in Basic Sciences (IASBS), Zanjan 45137-66731, Iran
| | - Mohsen Kompany-Zareh
- Chemistry Department, Institute for Advanced Studies in Basic Sciences (IASBS), Zanjan 45137-66731, Iran; Trace Analysis Research Centre, Department of Chemistry, Dalhousie University, PO Box 15000, Halifax, NS B3H 4R2, Canada.
| | - Elham Tahmasebi
- Chemistry Department, Institute for Advanced Studies in Basic Sciences (IASBS), Zanjan 45137-66731, Iran
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García Schejtman SD, Marzini Irranca S, Alvarez Igarzabal CI, Martinelli M. Redefining the chemistry of super-macroporous materials: when dendritic molecules meet polymer cryogels. Polym Chem 2020. [DOI: 10.1039/d0py00542h] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Dendritic cryogels modify the functionality and properties against conventional cryogels and improve the Immunoglobulin G (IgG) adsorption.
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Affiliation(s)
- Sergio D. García Schejtman
- Universidad Nacional de Córdoba
- Facultad de Ciencias Químicas
- Laboratorio de Materiales Poliméricos (LaMaP)
- Córdoba
- Argentina
| | - Santiago Marzini Irranca
- Universidad Nacional de Córdoba
- Facultad de Ciencias Químicas
- Laboratorio de Materiales Poliméricos (LaMaP)
- Córdoba
- Argentina
| | - Cecilia I. Alvarez Igarzabal
- Universidad Nacional de Córdoba
- Facultad de Ciencias Químicas
- Laboratorio de Materiales Poliméricos (LaMaP)
- Córdoba
- Argentina
| | - Marisa Martinelli
- Universidad Nacional de Córdoba
- Facultad de Ciencias Químicas
- Laboratorio de Materiales Poliméricos (LaMaP)
- Córdoba
- Argentina
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18
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Current trends in affinity-based monoliths in microextraction approaches: A review. Anal Chim Acta 2019; 1084:1-20. [DOI: 10.1016/j.aca.2019.07.020] [Citation(s) in RCA: 28] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/13/2019] [Revised: 07/08/2019] [Accepted: 07/09/2019] [Indexed: 12/15/2022]
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19
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Wan B, Li J, Ma F, Yu N, Zhang W, Jiang L, Wei H. Preparation and Properties of Cryogel Based on Poly(2-hydroxyethyl methacrylate- co-glycidyl methacrylate). LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2019; 35:3284-3294. [PMID: 30739457 DOI: 10.1021/acs.langmuir.8b04021] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
The immobilized metal affinity cryogels based on poly(2-hydroxyethyl methacrylate- co-glycidyl methacrylate) (p(HEMA-GMA)) containing hydroxy and epoxy groups were prepared by free-radical copolymerization under cryogenic condition and then functionalized with iminodiacetic acid and chelated Cu2+, Ca2+, and Fe3+ ions to the p(HEMA-GMA) cryogel. The structures of p(HEMA-GMA) and immobilized metal-affinity cryogels were analyzed by Fourier transform infrared spectroscopy and scanning electron microscopy (SEM)-energy dispersive X-ray spectroscopy. SEM results showed that the prepared cryogels had interconnected pores with the size of 30-100 μm. The performance of water swelling into the cryogels was fitted in Fickian diffusion. The adsorption property of cryogels was influenced by the immobilized ionic type, temperature, and adsorbate. The adsorption capacity of immobilized Cu2+ cryogel (p(HEMA)-Cu2+ (0.5 M) cryogel) was the highest in comparison with that of Ca2+ and Fe3+ affinity cryogels under the same condition. The maximum adsorption capacity of p(HEMA)-Cu2+ (0.5 M) cryogel for porcine pancreatic lipase was 150.14 mg/g at a higher temperature of 35 °C, whereas for bovine serum albumin, the maximum adsorption capacity was 154.11 mg/g at a lower temperature of 25 °C. The research of thermodynamics and kinetics indicated that the mechanism of the protein adsorption process corresponded to the Langmuir model and pseudo-second-order model.
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Affiliation(s)
- Binbin Wan
- School of Chemistry and Pharmaceutical Engineering , Qilu University of Technology (Shandong Academy of Sciences) , Jinan 250353 , P. R. China
| | - Junying Li
- School of Chemistry and Pharmaceutical Engineering , Qilu University of Technology (Shandong Academy of Sciences) , Jinan 250353 , P. R. China
- Shandong Provincial Key Laboratory for Special Silicone-Containing Materials , Jinan 250014 , P. R. China
| | - Feng Ma
- School of Chemistry and Pharmaceutical Engineering , Qilu University of Technology (Shandong Academy of Sciences) , Jinan 250353 , P. R. China
| | - Ning Yu
- School of Chemistry and Pharmaceutical Engineering , Qilu University of Technology (Shandong Academy of Sciences) , Jinan 250353 , P. R. China
| | - Wenjing Zhang
- School of Chemistry and Pharmaceutical Engineering , Qilu University of Technology (Shandong Academy of Sciences) , Jinan 250353 , P. R. China
| | - Lujie Jiang
- School of Chemistry and Pharmaceutical Engineering , Qilu University of Technology (Shandong Academy of Sciences) , Jinan 250353 , P. R. China
| | - Hengshan Wei
- School of Chemistry and Pharmaceutical Engineering , Qilu University of Technology (Shandong Academy of Sciences) , Jinan 250353 , P. R. China
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Abstract
The application of interconnected supermacroporous cryogels as support matrices for the purification, separation and immobilization of whole cells and different biological macromolecules has been well reported in literature. Cryogels have advantages over traditional gel carriers in the field of biochromatography and related biomedical applications. These matrices nearly mimic the three-dimensional structure of native tissue extracellular matrix. In addition, mechanical, osmotic and chemical stability of cryogels make them attractive polymeric materials for the construction of scaffolds in tissue engineering applications and in vitro cell culture, separation materials for many different processes such as immobilization of biomolecules, capturing of target molecules, and controlled drug delivery. The low mass transfer resistance of cryogel matrices makes them useful in chromatographic applications with the immobilization of different affinity ligands to these materials. Cryogels have been introduced as gel matrices prepared using partially frozen monomer or polymer solutions at temperature below zero. These materials can be produced with different shapes and are of interest in the therapeutic area. This review highlights the recent advances in cryogelation technologies by emphasizing their biomedical applications to supply an overview of their rising stars day to day.
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21
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Lai WJ, Lin SC. Hydroxyethyl cellulose-grafted loofa sponge-based metal affinity adsorbents for protein purification and enzyme immobilization. Process Biochem 2018. [DOI: 10.1016/j.procbio.2018.08.024] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
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22
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Zhai M, Ma F, Li J, Wan B, Yu N. Preparation and properties of cryogel based on poly(hydroxypropyl methacrylate). JOURNAL OF BIOMATERIALS SCIENCE-POLYMER EDITION 2018; 29:1401-1425. [PMID: 29667520 DOI: 10.1080/09205063.2018.1464263] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
A novel supermacroporous poly(hydroxypropyl methacrylate) (p(HPMA)) cryogel was synthesized by cryogelation method at -16 °C. In this synthesis process, HPMA was used as a monomer, and N,N'-methylenebisacrylamide (MBAAm) was used as cross-linker; the reaction was carried out in the presence of redox initiator pair N,N,N',N'-tetramethylene diamine (TEMED) and ammonium persulfate (APS). The effect of monomer concentration, cross-linker content, cooling rate, and dioxane co-solvent were determined with respect to the pore structure, mechanical behavior, swelling degree, and porosity of cryogel. The ESEM images indicate that the pore wall structure of cryogels was rough; moreover, small holes were present in the pore walls of cryogels. The result of compression test indicates that cryogels can be compressed by at least 80% without any breakdown. The result of swelling kinetics indicates that cryogels attain swelling equilibrium in 10 s. Furthermore, p(HPMA)-Cu2+ cryogel was prepared by loading Cu2+ ions on functionalized poly(hydroxypropyl methacrylate)-iminodiacetic acid (p(HPMA)-IDA) cryogel. We investigated the adsorption of bovine serum albumin (BSA) on cryogels. The results indicate that compared to Freundlich isotherm, Langmuir isotherm could more suitably describe the adsorption process of BSA on cryogels. Meanwhile, the adsorption capacity of p(HPMA)-Cu2+ cryogel was significantly greater than that of p(HPMA) cryogel. The maximum adsorption capacity of BSA on p(HPMA)-Cu2+ cryogel, which was treated with 1 M Cu2+ ions, was as high as 196.87 mg/g cryogel (equivalent to 20.48 mg/mL cryogel) at 25 °C and pH = 7.8; therefore, the maximum adsorption capacity of BSA on p(HPMA)-Cu2+ cryogel was 4.35 times higher than that of p(HPMA) cryogel. Thus, the adsorption capacity of cryogels was strongly influenced by Cu2+ concentration, moreover, temperature changes clearly affected the adsorption capacity of p(HPMA)-Cu2+cryogel. The adsorption capacity at 25 °C was twice as that at 15 °C. By calculating Gibbs free energy change (∆G) of adsorption, we found that the adsorption process was spontaneous; moreover, adsorption process occurred better at higher temperature.
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Affiliation(s)
- Mengfan Zhai
- a School of Chemistry and Pharmaceutical Engineering , Qilu University of Technology (Shandong Academy of Sciences) , Jinan , China
| | - Feng Ma
- a School of Chemistry and Pharmaceutical Engineering , Qilu University of Technology (Shandong Academy of Sciences) , Jinan , China
| | - Junying Li
- a School of Chemistry and Pharmaceutical Engineering , Qilu University of Technology (Shandong Academy of Sciences) , Jinan , China
| | - Binbin Wan
- a School of Chemistry and Pharmaceutical Engineering , Qilu University of Technology (Shandong Academy of Sciences) , Jinan , China
| | - Ning Yu
- a School of Chemistry and Pharmaceutical Engineering , Qilu University of Technology (Shandong Academy of Sciences) , Jinan , China
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23
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Acet Ö, Baran T, Erdönmez D, Aksoy NH, Alacabey İ, Menteş A, Odabaşi M. O-carboxymethyl chitosan Schiff base complexes as affinity ligands for immobilized metal-ion affinity chromatography of lysozyme. J Chromatogr A 2018; 1550:21-27. [PMID: 29609862 DOI: 10.1016/j.chroma.2018.03.022] [Citation(s) in RCA: 43] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/20/2017] [Revised: 02/26/2018] [Accepted: 03/13/2018] [Indexed: 01/26/2023]
Abstract
We synthesized Ni2+-attached O-Carboxymethyl chitosan Schiff base complexes embedded composite cryogels (Ni2+-O-CMCS-CCs) by means of polymerization of gel-forming precursors at subzero temperatures. Prepared affinity cryogel showed excellent adsorption performance for lysozyme selected as model protein to test adsorption parameters, demonstrating an adsorption capacity of 244.6 mg/g (15.3 mg/g for Ni2+ minus O-CMCS-CCs), with fast adsorption equilibrium within 30 min and good reversibility. The performance of Ni2+-O-CMCS-CCs for lysozyme was also evaluated by SDS-PAGE, and a purification efficiency of 86.9% with 89.5% purification yield was determined. The swelling test, FT-IR, and SEM analysis were carried out for the characterization of Ni2+-O-CMCS-CCs. At the end of 35 adsorption-desorption cycles, there was no significant change in the adsorption capacity.
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Affiliation(s)
- Ömür Acet
- Aksaray University, Faculty of Arts and Science, Chemistry Department, Aksaray, Turkey
| | - Talat Baran
- Aksaray University, Faculty of Arts and Science, Chemistry Department, Aksaray, Turkey
| | - Demet Erdönmez
- Aksaray University, Faculty of Arts and Science, Biology Department, Aksaray, Turkey
| | - Neşe Hayat Aksoy
- Aksaray University, Faculty of Veterinary Medicine, Aksaray, Turkey
| | - İhsan Alacabey
- Mardin Artuklu University, Vocational School of Health Services, Mardin, Turkey
| | - Ayfer Menteş
- Aksaray University, Faculty of Arts and Science, Chemistry Department, Aksaray, Turkey
| | - Mehmet Odabaşi
- Aksaray University, Faculty of Arts and Science, Chemistry Department, Aksaray, Turkey.
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24
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Hixon KR, Lu T, Sell SA. A comprehensive review of cryogels and their roles in tissue engineering applications. Acta Biomater 2017; 62:29-41. [PMID: 28851666 DOI: 10.1016/j.actbio.2017.08.033] [Citation(s) in RCA: 163] [Impact Index Per Article: 23.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2017] [Revised: 08/01/2017] [Accepted: 08/25/2017] [Indexed: 02/08/2023]
Abstract
The extracellular matrix is fundamental in providing an appropriate environment for cell interaction and signaling to occur. Replicating such a matrix is advantageous in the support of tissue ingrowth and regeneration through the field of tissue engineering. While scaffolds can be fabricated in many ways, cryogels have recently become a popular approach due to their macroporous structure and durability. Produced through the crosslinking of gel precursors followed by a subsequent controlled freeze/thaw cycle, the resulting cryogel provides a unique, sponge-like structure. Therefore, cryogels have proven advantageous for many tissue engineering applications including roles in bioreactor systems, cell separation, and scaffolding. Specifically, the matrix has been demonstrated to encourage the production of various molecules, such as antibodies, and has also been used for cryopreservation. Cryogels can pose as a bioreactor for the expansion of cell lines, as well as a vehicle for cell separation. Lastly, this matrix has shown excellent potential as a tissue engineered scaffold, encouraging regrowth at numerous damaged tissue sites in vivo. This review will briefly discuss the fabrication of cryogels, with an emphasis placed on their application in various facets of tissue engineering to provide an overview of this unique scaffold's past and future roles. STATEMENT OF SIGNIFICANCE Cryogels are unique scaffolds produced through the controlled freezing and thawing of a polymer solution. There is an ever-growing body of literature that demonstrates their applicability in the realm of tissue engineering as extracellular matrix analogue scaffolds; with extensive information having been provided regarding the fabrication, porosity, and mechanical integrity of the scaffolds. Additionally, cryogels have been reviewed with respect to their role in bioseparation and as cellular incubators. This all-inclusive view of the roles that cryogels can play is critical to advancing the technology and expanding its niche within biomaterials and tissue engineering research. To the best of the authors' knowledge, this is the first comprehensive review of cryogel applications in tissue engineering that includes specific looks at their growing roles as extracellular matrix analogues, incubators, and in bioseparation processes.
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25
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Ni-functionalized submicron mesoporous silica particles as a sorbent for metal affinity chromatography. J Chromatogr A 2017; 1513:140-148. [DOI: 10.1016/j.chroma.2017.07.043] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2017] [Revised: 07/11/2017] [Accepted: 07/11/2017] [Indexed: 11/24/2022]
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26
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Khaparde A, M. A. V, Tetala KKR. Preparation and characterization of a Cu (II)-IDA poly HEMA monolith syringe for proteomic applications. Electrophoresis 2017; 38:2981-2984. [DOI: 10.1002/elps.201700219] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2017] [Revised: 07/26/2017] [Accepted: 07/27/2017] [Indexed: 01/08/2023]
Affiliation(s)
- Ashish Khaparde
- Advanced centre for Bioseparation Technology (CBST); VIT University; Vellore Tamil Nadu India
| | - Vijayalakshmi M. A.
- Advanced centre for Bioseparation Technology (CBST); VIT University; Vellore Tamil Nadu India
| | - Kishore K. R. Tetala
- Advanced centre for Bioseparation Technology (CBST); VIT University; Vellore Tamil Nadu India
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27
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Vega M, Elviro M, Del Valle EMM, Cerro R, Galán MÁ. Kinetic and Mass Transfer Model for Separation of Protein Using Ceramic Monoliths as a Stationary Phase. CHEM ENG COMMUN 2017. [DOI: 10.1080/00986445.2017.1313243] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Affiliation(s)
- Milena Vega
- Department of Chemical Engineering, University of Salamanca, Salamanca, Spain
| | - Montaña Elviro
- Department of Chemical Engineering, University of Salamanca, Salamanca, Spain
| | | | - Ramón Cerro
- Department of Chemical and Materials Engineering, University of Alabama in Huntsville, Huntsville, Alabama, USA
| | - Miguel Ángel Galán
- Department of Chemical Engineering, University of Salamanca, Salamanca, Spain
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28
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Affinity binding of proteins to the modified bacterial cellulose nanofibers. J Chromatogr B Analyt Technol Biomed Life Sci 2017; 1052:121-127. [DOI: 10.1016/j.jchromb.2017.03.021] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2017] [Revised: 03/17/2017] [Accepted: 03/22/2017] [Indexed: 02/06/2023]
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29
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Demir ME, Aktaş Uygun D, Erdağ A, Akgöl S. A new support material for IgG adsorption: Syntrichia papillosissima (Copp.) Loeske. ARTIFICIAL CELLS NANOMEDICINE AND BIOTECHNOLOGY 2017; 45:1363-1368. [PMID: 28271902 DOI: 10.1080/21691401.2017.1296848] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
Abstract
In this presented work, Syntrichia papillosissima (Copp.) Loeske (S. papillosissima) was used as a natural phytosorbent for IgG purification. These moss species were collected for the natural habitat and prepared for IgG adsorption studies by cleaning, drying, and grinding to uniform size. Syntrichia papillosissima samples were characterized by using FTIR and SEM studies. Functional groups of S. papillosissima were identified by FTIR analysis, while surface characteristics were determined by SEM studies. A batch system was used for the adsorption of IgG onto S. papillosissima surface and physical conditions of the IgG adsorption medium were investigated by modifying the pH, IgG concentration and temperature. Maximum IgG adsorption onto S. papillosissima was found to be 68.01 mg/g moss by using pH 5.0 buffer system. Adsorption kinetic isotherms were also studied and it was found that, Langmuir adsorption model was appropriate for this adsorption study. Reusability profile of S. papillosissima was also investigated and IgG adsorption capacity did not decrease significantly after 5 reuse studies. Results indicated that S. papillosissima species have the capacity to be used as biosorbent for IgG purification, with its low cost, natural and biodegradable structure.
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Affiliation(s)
- Mithat Evrim Demir
- a Buharkent Vocational and Training School , Adnan Menderes University , Aydın , Turkey
| | - Deniz Aktaş Uygun
- b Department of Chemistry, Faculty of Arts and Science , Adnan Menderes University , Aydın , Turkey
| | - Adnan Erdağ
- c Department of Biology, Faculty of Arts and Science , Adnan Menderes University , Aydın , Turkey
| | - Sinan Akgöl
- d Biochemistry Department, Faculty of Science , Ege University , İzmir , Turkey
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