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Pei Y, Feast S, Holland D, Fee C. Performance of various 3D-printed monolith geometries as an alternative to expanded bed adsorption for protein purification. Biotechnol Bioeng 2024; 121:2278-2288. [PMID: 37040074 DOI: 10.1002/bit.28398] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2023] [Revised: 03/29/2023] [Accepted: 04/01/2023] [Indexed: 04/12/2023]
Abstract
Here, we compare the performance of various three-dimensional-printed Monolith Adsorption (PMA) columns designed from a triply periodic minimal surface geometry, the Schoen gyroid. The structures examined had designed hydraulic diameters between 203 and 458 µm and voidages of 40%-60%. We compare column efficiency, porosity, static binding capacity and dynamic binding capacity for various load volumes and flow rates. The results show that all structures allowed efficient passage of yeast cells (>97%) over a wide range of interstitial velocities (191 to 1911 cm/h) while maintaining a low pressure drop (<0.1 MPa). The structure with a voidage of 40% and a hydraulic diameter of 203 µm showed the best performance in all aspects evaluated. Bovine serum albumin (BSA) recoveries for all structures (27%-91% when the loaded volume was 180 mL) were significantly affected by hydraulic diameter, mean channel wall thickness, velocity and voidage. Moreover, biomass addition resulted in a decrease in BSA recovery, which became more obvious at high velocities. However, this did not lead to a dramatic reduction in saturated binding capacity, significant changes in axial dispersion, or blockage of channels and could be compensated for by recirculation of the feed, even at high velocity. PMA thus potentially provides an appealing alternative to Expanded Bed Adsorption, retaining the latter's advantages, while eliminating fluidization issues and minimizing both processing time and buffer consumption.
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Affiliation(s)
- Yuanjun Pei
- Biomolecular Interaction Centre, University of Canterbury, Christchurch, New Zealand
- School of Product Design, University of Canterbury, Christchurch, New Zealand
| | - Sean Feast
- Precison Chromatography Limited, Christchurch, New Zealand
| | - Daniel Holland
- Biomolecular Interaction Centre, University of Canterbury, Christchurch, New Zealand
- Department of Chemical and Process Engineering, University of Canterbury, Christchurch, New Zealand
| | - Conan Fee
- Biomolecular Interaction Centre, University of Canterbury, Christchurch, New Zealand
- School of Product Design, University of Canterbury, Christchurch, New Zealand
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2
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Wu J, Wang R, Tan Y, Liu L, Chen Z, Zhang S, Lou X, Yun J. Hybrid machine learning model based predictions for properties of poly(2-hydroxyethyl methacrylate)-poly(vinyl alcohol) composite cryogels embedded with bacterial cellulose. J Chromatogr A 2024; 1727:464996. [PMID: 38763087 DOI: 10.1016/j.chroma.2024.464996] [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: 02/23/2024] [Revised: 05/10/2024] [Accepted: 05/13/2024] [Indexed: 05/21/2024]
Abstract
Supermacroporous composite cryogels with enhanced adjustable functionality have received extensive interest in bioseparation, tissue engineering, and drug delivery. However, the variations in their components significantly impactfinal properties. This study presents a two-step hybrid machine learning approach for predicting the properties of innovative poly(2-hydroxyethyl methacrylate)-poly(vinyl alcohol) composite cryogels embedded with bacterial cellulose (pHEMA-PVA-BC) based on their compositions. By considering the ratios of HEMA (1.0-22.0 wt%), PVA (0.2-4.0 wt%), poly(ethylene glycol) diacrylate (1.0-4.5 wt%), BC (0.1-1.5 wt%), and water (68.0-96.0 wt%) as investigational variables, overlay sampling uniform design (OSUD) was employed to construct a high-quality dataset for model development. The random forest (RF) model was used to classify the preparation conditions. Then four models of artificial neural network, RF, gradient boosted regression trees (GBRT), and XGBoost were developed to predict the basic properties of the composite cryogels. The results showed that the RF model achieved an accurate three-class classification of preparation conditions. Among the four models, the GBRT model exhibited the best predictive performance of the basic properties, with the mean absolute percentage error of 16.04 %, 0.85 %, and 2.44 % for permeability, effective porosity, and height of theoretical plate (1.0 cm/min), respectively. Characterization results of the representative pHEMA-PVA-BC composite cryogel showed an effective porosity of 81.01 %, a permeability of 1.20 × 10-12 m2, and a range of height of theoretical plate between 0.40-0.49 cm at flow velocities of 0.5-3.0 cm/min. These indicate that the pHEMA-PVA-BC cryogel was an excellent material with supermacropores, low flow resistance and high mass transfer efficiency. Furthermore, the model output demonstrates that the alteration of the proportions of PVA (0.2-3.5 wt%) and BC (0.1-1.5 wt%) components in composite cryogels resulted in significant changes in the material basic properties. This work represents an attempt to efficiently design and prepare target composite cryogels using machine learning and providing valuable insights for the efficient development of polymers.
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Affiliation(s)
- Jiawei Wu
- State Key Laboratory Breeding Base of Green Chemistry Synthesis Technology, College of Chemical Engineering, Zhejiang University of Technology, Chaowang Road 18, Hangzhou 310032, PR China
| | - Ruobing Wang
- State Key Laboratory Breeding Base of Green Chemistry Synthesis Technology, College of Chemical Engineering, Zhejiang University of Technology, Chaowang Road 18, Hangzhou 310032, PR China
| | - Yan Tan
- State Key Laboratory Breeding Base of Green Chemistry Synthesis Technology, College of Chemical Engineering, Zhejiang University of Technology, Chaowang Road 18, Hangzhou 310032, PR China
| | - Lulu Liu
- State Key Laboratory Breeding Base of Green Chemistry Synthesis Technology, College of Chemical Engineering, Zhejiang University of Technology, Chaowang Road 18, Hangzhou 310032, PR China
| | - Zhihong Chen
- State Key Laboratory Breeding Base of Green Chemistry Synthesis Technology, College of Chemical Engineering, Zhejiang University of Technology, Chaowang Road 18, Hangzhou 310032, PR China
| | - Songhong Zhang
- State Key Laboratory Breeding Base of Green Chemistry Synthesis Technology, College of Chemical Engineering, Zhejiang University of Technology, Chaowang Road 18, Hangzhou 310032, PR China
| | - Xiaoling Lou
- State Key Laboratory Breeding Base of Green Chemistry Synthesis Technology, College of Chemical Engineering, Zhejiang University of Technology, Chaowang Road 18, Hangzhou 310032, PR China.
| | - Junxian Yun
- State Key Laboratory Breeding Base of Green Chemistry Synthesis Technology, College of Chemical Engineering, Zhejiang University of Technology, Chaowang Road 18, Hangzhou 310032, PR China.
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Baghban A, Sasanipour J, Haratipour P, Alizad M, Vafaee Ayouri M. ANFIS modeling of rhamnolipid breakthrough curves on activated carbon. Chem Eng Res Des 2017. [DOI: 10.1016/j.cherd.2017.08.007] [Citation(s) in RCA: 33] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
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de Araújo Padilha CE, de Araújo Padilha CA, de Santana Souza DF, de Oliveira JA, de Macedo GR, dos Santos ES. Recurrent neural network modeling applied to expanded bed adsorption chromatography of chitosanases produced by Paenibacillus ehimensis. Chem Eng Res Des 2017. [DOI: 10.1016/j.cherd.2016.09.022] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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5
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de Araújo Padilha CE, Fortunato Dantas PV, de sousa FC, de Santana Souza DF, de Oliveira JA, de Macedo GR, dos Santos ES. Mathematical modeling of the whole expanded bed adsorption process to recover and purify chitosanases from the unclarified fermentation broth of Paenibacillus ehimensis. J Chromatogr B Analyt Technol Biomed Life Sci 2016; 1039:44-50. [DOI: 10.1016/j.jchromb.2016.10.027] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/17/2016] [Revised: 10/17/2016] [Accepted: 10/23/2016] [Indexed: 12/25/2022]
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6
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de Araújo Padilha CE, de Araújo NK, de Santana Souza DF, de Oliveira JA, de Macedo GR, dos Santos ES. Modeling and simulation of Bacillus cereus chitosanase activity during purification using expanded bed chromatography. KOREAN J CHEM ENG 2016. [DOI: 10.1007/s11814-016-0127-1] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
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7
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Padilha CEDA, Padilha CADA, Souza DFDS, Oliveira JAD, Macedo GRD, Santos ESD. Prediction of rhamnolipid breakthrough curves on activated carbon and Amberlite XAD-2 using Artificial Neural Network and Group Method Data Handling models. J Mol Liq 2015. [DOI: 10.1016/j.molliq.2015.02.030] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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Lin DQ, Shi W, Tong HF, van de Sandt EJAX, Boer PD, Ferreira GNM, Yao SJ. Evaluation and characterization of axial distribution in expanded bed: II. Liquid mixing and local effective axial dispersion. J Chromatogr A 2015; 1393:65-72. [PMID: 25817706 DOI: 10.1016/j.chroma.2015.03.019] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2015] [Revised: 03/03/2015] [Accepted: 03/07/2015] [Indexed: 11/30/2022]
Abstract
Expanded bed adsorption (EBA) is a promising technology to capture proteins directly from unclarified feedstock. In order to better understand liquid mixing along the bed height in expanded beds, an in-bed sampling method was used to measure residence time distribution at different bed heights. A 2cm diameter nozzle column was tested with agarose raw beads (3% crosslinked agarose containing tungsten carbide). Two settled bed heights (11.5 and 23.1cm) with different expansion factors (1.4-2.6) were investigated and the number of theoretical plates (N), the height equivalent of theoretical plate (HETP) and the local effective axial dispersion coefficient (Dax) were calculated for each bed height-defined zone. The effects of expansion factor, settled bed height and mobile phase were evaluated. The results showed that N increased with the increase of expansion factors, but Dax was unaffected under fixed bed heights. Dax and HETP were found similar as a function of relative bed height for two settled bed heights tested. Higher mobile phase viscosity resulted in stronger axial dispersion. In addition, the local effective Dax under the expansion factor near 2.0 had a different profile which showed minimum values at 0.6-0.8 relative bed height, and the potential mechanism was discussed. These results would be useful for the characterization of axial dispersion and modeling protein adsorption in expanded beds under varying operation conditions.
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Affiliation(s)
- Dong-Qiang Lin
- Key Laboratory of Biomass Chemical Engineering of Ministry of Education, College of Chemical and Biological Engineering, Zhejiang University, Hangzhou 310027, China.
| | - Wei Shi
- Key Laboratory of Biomass Chemical Engineering of Ministry of Education, College of Chemical and Biological Engineering, Zhejiang University, Hangzhou 310027, China
| | - Hong-Fei Tong
- Key Laboratory of Biomass Chemical Engineering of Ministry of Education, College of Chemical and Biological Engineering, Zhejiang University, Hangzhou 310027, China
| | - Emile J A X van de Sandt
- DSM Biotechnology Center, Center of Integrated BioProcessing, Alexander Fleminglaan 1, 2613 AX Delft, The Netherlands.
| | - Piet den Boer
- Patheon Biologics, Zuiderweg 72/2, 9744 AP Groningen, The Netherlands
| | - Guilherme N M Ferreira
- DSM Biotechnology Center, Center of Integrated BioProcessing, Alexander Fleminglaan 1, 2613 AX Delft, The Netherlands
| | - Shan-Jing Yao
- Key Laboratory of Biomass Chemical Engineering of Ministry of Education, College of Chemical and Biological Engineering, Zhejiang University, Hangzhou 310027, China
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9
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Dadashi A, Zhu J, Zhang C. CFD modelling of continuous protein extraction process using liquid-solid circulating fluidized beds. CAN J CHEM ENG 2014. [DOI: 10.1002/cjce.22051] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Abbas Dadashi
- Department of Mechanical and Materials Engineering; Western University; London ON N6A 5B9
| | - Jingxu Zhu
- Department of Chemical and Biochemical Engineering; Western University; London ON N6A 5B9
| | - Chao Zhang
- Department of Mechanical and Materials Engineering; Western University; London ON N6A 5B9
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10
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de Santana SC, da Silva Filho RC, dos Santos Cavalcanti J, de Oliveira JA, de Macedo GR, Padilha FF, dos Santos ES. Modeling and simulation of breakthrough curves during purification of two chitosanases from Metarhizium anisopliae using ion-exchange with expanded bed adsorption chromatography. KOREAN J CHEM ENG 2014. [DOI: 10.1007/s11814-013-0269-3] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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11
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Lin DQ, Tong HF, van de Sandt EJAX, den Boer P, Golubović M, Yao SJ. Evaluation and characterization of axial distribution in expanded bed. I. Bead size, bead density and local bed voidage. J Chromatogr A 2013; 1304:78-84. [PMID: 23871286 DOI: 10.1016/j.chroma.2013.06.057] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2013] [Revised: 06/13/2013] [Accepted: 06/22/2013] [Indexed: 11/19/2022]
Abstract
Expanded bed adsorption (EBA) is an innovative chromatography technology that allows the adsorption of target proteins directly from unclarified feedstock, and the most important property of an expanded bed is the perfectly classified fluidization of resin beads in the column. Due to the variation of both size and density of bulk resin beads, the axial distributions of bead size, bead density and bed voidage are the inherent characteristics of an expanded bed. However, the understanding on these properties is quite limited. In this study, raw beads (3% crosslinked agarose containing tungsten carbide) and 2cm-diameter nozzle column were used as the model system and mean bead size, bead density and local bed voidage along the bed height were measured systematically with the in-bed sampling method for two settled bed heights (11.5 and 23.1cm) and different expansion factors (1.4-2.6). With the increase of bed height, mean bead size and wet density of the beads decreased from 140 to 90μm and from 4 to 2g/ml, respectively. The local bed voidage increased from 0.6 to 0.9 with the increasing bed height. The relative bed height and relative bed voidage were introduced to describe the general rule of axial distribution. Some empirical equations were used to correlate the mean bead size, bead density and local bed voidage along the bed height with the standard deviations of 10.6%, 6.1% and 5.5, respectively. In addition, a general equation was proposed to predict the axial distributions of bead size, bead density and local bed voidage in the column with standard deviations less than 10% for most of the experimental data, which would be useful for the characterization of resin beads distribution in an expanded bed under varying operation conditions.
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Affiliation(s)
- Dong-Qiang Lin
- State Key Laboratory of Chemical Engineering, Department of Chemical and Biological Engineering, Zhejiang University, Hangzhou 310027, China.
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12
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Kelly W, Kamguia G, Mullen P, Ubiera A, Göklen K, Huang Z, Jones G. Using a two species competitive binding model to predict expanded bed breakthrough of a recombinant protein expressed in a high cell density fermentation. BIOTECHNOL BIOPROC E 2013. [DOI: 10.1007/s12257-012-0754-2] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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13
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SHEN S, WANG L, SUN Z, LI M, LIU C, TIAN B, YUN J, HUA Y. Separation of Recombinant Geranylgeranyl Diphosphate Synthase of Deinococcus radiodurans from Expressed Strain Cell Homogenate by Immobilized Metal Affinity Chromatography on a Characterized Monolithic Cryogel Column. Chin J Chem Eng 2013. [DOI: 10.1016/s1004-9541(13)60514-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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14
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Rapid freezing cryo-polymerization and microchannel liquid-flow focusing for cryogel beads: Adsorbent preparation and characterization of supermacroporous bead-packed bed. J Chromatogr A 2013; 1284:148-54. [DOI: 10.1016/j.chroma.2013.02.014] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2012] [Revised: 01/28/2013] [Accepted: 02/05/2013] [Indexed: 12/23/2022]
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15
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Moraes CC, Mazutti MA, Maugeri F, Kalil SJ. Modeling of ion exchange expanded-bed chromatography for the purification of C-phycocyanin. J Chromatogr A 2013; 1281:73-8. [PMID: 23411140 DOI: 10.1016/j.chroma.2013.01.081] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/04/2012] [Revised: 01/16/2013] [Accepted: 01/20/2013] [Indexed: 11/26/2022]
Abstract
This work is focused on the experimental evaluation and mathematical modeling of ion exchange expanded-bed chromatography for the purification of C-phycocyanin from crude fermentative broth containing Spirulina platensis cells. Experiments were carried out in different expansion degree to evaluate the process performance. The experimental breakthrough curves were used to estimate the mass transfer and kinetics parameters of the proposed model, using the Particle Swarm Optimization algorithm (PSO). The proposed model satisfactorily fitted the experimental data. The results from the model application pointed out that the increase in the initial bed height does not influence the process efficiency, however enables the operation of expanded-bed column at high volumetric flow rates, improving the productivity. It was also shown that the use of mathematical modeling was a good and promising tool for the optimization of chromatographic processes.
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Affiliation(s)
- Caroline Costa Moraes
- Engenharia de Alimentos, Universidade Federal do Pampa - UNIPAMPA, Bagé, RS, CEP 96413-170, Brazil.
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Jahanshahi M, Mosavian MTH, Otaghsara EST. Hydrodynamic Characteristics and Adsorption Particularity of Nanobiological Feedstock Along the Bed Height in a Novel Chromatography Column. Chromatographia 2012. [DOI: 10.1007/s10337-012-2235-3] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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17
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An improved capillary model for describing the microstructure characteristics, fluid hydrodynamics and breakthrough performance of proteins in cryogel beds. J Chromatogr A 2011; 1218:5487-97. [DOI: 10.1016/j.chroma.2011.06.056] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2011] [Revised: 05/19/2011] [Accepted: 06/09/2011] [Indexed: 11/23/2022]
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18
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Arpanaei A, Winther-Jensen B, Theodosiou E, Kingshott P, Hobley TJ, Thomas ORT. Surface modification of chromatography adsorbents by low temperature low pressure plasma. J Chromatogr A 2010; 1217:6905-16. [PMID: 20869062 DOI: 10.1016/j.chroma.2010.08.069] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2010] [Revised: 08/18/2010] [Accepted: 08/24/2010] [Indexed: 11/26/2022]
Abstract
In this study we show how low temperature glow discharge plasma can be used to prepare bi-layered chromatography adsorbents with non-adsorptive exteriors. The commercial strong anion exchange expanded bed chromatography matrix, Q HyperZ, was treated with plasmas in one of two general ways. Using a purpose-designed rotating reactor, plasmas were employed to either: (i) remove anion exchange ligands at or close to the exterior surface of Q HyperZ, and replace them with polar oxygen containing functions ('plasma etching and oxidation'); or (ii) bury the same surface exposed ligands beneath thin polymer coatings ('plasma polymerization coating') using appropriate monomers (vinyl acetate, vinyl pyrrolidone, safrole) and argon as the carrier gas. X-ray photoelectron spectroscopy analysis (first ∼10 nm depth) of Q HyperZ before and after the various plasma treatments confirmed that substantial changes to the elemental composition of Q HyperZ's exterior had been inflicted in all cases. The atomic percent changes in carbon, nitrogen, oxygen, yttrium and zirconium observed after being exposed to air plasma etching were entirely consistent with: the removal of pendant Q (trimethylammonium) functions; increased exposure of the underlying yttrium-stabilised zirconia shell; and introduction of hydroxyl and carbonyl functions. Following plasma polymerization treatments (with all three monomers tested), the increased atomic percent levels of carbon and parallel drops in nitrogen, yttrium and zirconium provided clear evidence that thin polymer coats had been created at the exteriors of Q HyperZ adsorbent particles. No changes in adsorbent size and surface morphology, nor any evidence of plasma-induced damage could be discerned from scanning electron micrographs, light micrographs and measurements of particle size distributions following 3 h exposure to air (220 V; 35.8 W L(-1)) or 'vinyl acetate/argon' (170 V; 16.5 W L(-1)) plasmas. Losses in bulk chloride exchange capacity before and after exposure to plasmas enabled effective modification depths within hydrated Q HyperZ adsorbent particles to be calculated as 0.2-1.2 μm, depending on the conditions applied. The depth of plasma induced alteration was strongly influenced by the power input and size of the treated batch, i.e. dropping the power or increasing the batch size resulted in reduced plasma penetration and therefore shallower modification. The selectivity of 'surface vs. core' modification imparted to Q HyperZ by the various plasma treatments was evaluated in static and dynamic binding studies employing appropriate probes, i.e. plasmid DNA, sonicated calf thymus DNA and bovine serum albumin. In static binding studies performed with adsorbents that had been exposed to plasmas at the 5 g scale (25 g L(-1) of plasma reactor), the highest 'surface/core' modification selectivity was observed for Q HyperZ that had been subjected to 3 h of air plasma etching at 220 V (35.8 W L(-1)). This treatment removed ∼53% of 'surface' DNA binding at the expense of a 9.3% loss in 'core' protein binding. Even more impressive results were obtained in dynamic expanded bed adsorption studies conducted with Q HyperZ adsorbents that had been treated with air (220 V, 3 h) and 'vinyl acetate/argon' (170 V, 3 h) plasmas at 10.5 g scale (52.5 g L(-1) of plasma reactor). Following both plasma treatments: the 10% breakthrough capacities of the modified Q HyperZ adsorbents towards 'surface' binding DNA probes dropped very significantly (30-85%); the DNA induced inter-particle cross-linking and contraction of expanded beds observed during application of sonicated DNA on native Q HyperZ was completely eradicated; but the 'core' protein binding performance remained unchanged cf. that of the native Q HyperZ starting material.
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Affiliation(s)
- A Arpanaei
- Center for Microbial Biotechnology, Building 223, Institute for Systems Biology, Technical University of Denmark, DK-2800 Lyngby, Denmark
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Simulation of the breakthrough curves for the adsorption of α-lactalbumin and β-lactoglobulin to SP Sepharose FF cation-exchanger. Biochem Eng J 2010. [DOI: 10.1016/j.bej.2009.12.017] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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Mazumder J, Zhu J, Bassi AS, Ray AK. Modeling and simulation of liquid-solid circulating fluidized bed ion exchange system for continuous protein recovery. Biotechnol Bioeng 2009; 104:111-26. [DOI: 10.1002/bit.22368] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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22
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Mazumder J, Zhu J, Bassi AS, Ray AK. Multiobjective optimization of the operation of a liquid-solid circulating fluidized bed ion-exchange system for continuous protein recovery. Biotechnol Bioeng 2009; 103:873-90. [DOI: 10.1002/bit.22328] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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Yun J, Kirsebom H, Galaev IY, Mattiasson B. Modeling of protein breakthrough performance in cryogel columns by taking into account the overall axial dispersion. J Sep Sci 2009; 32:2601-7. [DOI: 10.1002/jssc.200900320] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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24
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Moraes CC, Mazutti MA, Rodrigues MI, Filho FM, Kalil SJ. Mathematical modeling and simulation of inulinase adsorption in expanded bed column. J Chromatogr A 2009; 1216:4395-401. [PMID: 19328491 DOI: 10.1016/j.chroma.2009.03.027] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/14/2009] [Revised: 03/10/2009] [Accepted: 03/12/2009] [Indexed: 10/21/2022]
Abstract
A mathematical model for an expanded bed column was developed to predict breakthrough curves for inulinase adsorption on Streamline SP ion-exchange adsorbent, using a crude fermentative broth with cells as the feedstock. The kinetics and mass transfer parameters were estimated using the PSO (particle swarm optimization) heuristic algorithm. The parameters were estimated for each expansion degree (ED) using three breakthrough curves at initial inulinase concentrations of 65.6UmL(-1). In sequence, the model parameters for an ED of 2.5 were validated using the breakthrough curve at an initial concentration of 114.4UmL(-1). The applicability of the validated model in process optimization was investigated, using the model as a process simulator and experimental design methodology to optimize the column and process efficiencies. The results demonstrated the usefulness of this methodology for expanded bed adsorption processes.
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Affiliation(s)
- Caroline Costa Moraes
- Universidade Federal do Rio Grande - Escola de Química e Alimentos, Rua Engenheiro Alfredo Huch, 475, CP 474, Rio Grande, RS, Brazil
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Effect of different operating modes and biomass concentrations on the recovery of recombinant hepatitis B core antigen from thermal-treated unclarified Escherichia coli feedstock. J Biotechnol 2008; 138:74-9. [DOI: 10.1016/j.jbiotec.2008.08.004] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/26/2008] [Revised: 06/17/2008] [Accepted: 08/10/2008] [Indexed: 11/22/2022]
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26
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Preparation of polyacrylamide-based supermacroporous monolithic cryogel beds under freezing-temperature variation conditions. Chem Eng Sci 2006. [DOI: 10.1016/j.ces.2006.06.022] [Citation(s) in RCA: 49] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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27
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Yao K, Yun J, Shen S, Wang L, He X, Yu X. Characterization of a novel continuous supermacroporous monolithic cryogel embedded with nanoparticles for protein chromatography. J Chromatogr A 2006; 1109:103-10. [PMID: 16455092 DOI: 10.1016/j.chroma.2006.01.014] [Citation(s) in RCA: 134] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/23/2005] [Revised: 11/23/2005] [Accepted: 01/09/2006] [Indexed: 11/27/2022]
Abstract
A novel continuous supermacroporous monolithic cryogel embedded with nanometer-size particles was prepared by the radical cryogenic co-polymerization of acrylamide (AAm), N,N'-methylene-bis-acrylamide (MBAAm), allyl glycidyl ether (AGE) and the dispersed surfactant-stabilized Fe3O4 nanoparticles under the freezing-temperature variation condition in a glass column. This special separation matrix has interconnected supermacropores with pore size of 10-50 microm, which permit the free-passage of microbial cells or cell debris in the culture fluids and then is interest in downstream processes. The axial liquid dispersion coefficients of the new continuous supermacroporous monolithic bed at different liquid flow rates were obtained by measuring residence time distributions (RTDs) using tracer pulse-response method. The experimental results showed that the axial liquid dispersion within the bed was weak in a wide water flow rate of 0.5-15 cm/min. The axial dispersion coefficient was found to be increased exponentially with the increase of liquid flow rate. Chromatographic process of bovine serum albumin (BSA) in the cryogel monolithic bed was carried out to reveal the protein breakthrough and elution characteristics. Compared with other reported cryogel beds in literature, the protein adsorption capacity of the present cryogel bed was improved due to the embedded nano-sized solid adsorbents in the gel matrix. Microstructure morphology of the embedded nanoparticles in the cryogel and the gel matrix structure were also analyzed by scanning electron microscopy (SEM) and transmission electron microscopy (TEM) in this paper.
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Affiliation(s)
- Kejian Yao
- State Key Laboratory Breeding Base of Green Chemistry Synthesis Technology, College of Chemical Engineering and Materials Science, Zhejiang University of Technology, Hangzhou 310032, China.
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