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Sun D, Xie J, Chen CJ, Liu JT. Analyzation of the binding mechanism and the isoelectric point of glycated albumin with self-assembled, aptamer-conjugated films by using surface plasmon resonance. Colloids Surf B Biointerfaces 2022; 214:112445. [PMID: 35290823 DOI: 10.1016/j.colsurfb.2022.112445] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2021] [Revised: 02/24/2022] [Accepted: 03/03/2022] [Indexed: 10/18/2022]
Abstract
Glycated albumin(GA), a biomarker which has great potential to replace glycated hemoglobin in the diagnosis and treatment of diabetes, is being extensively studied by scientists, especially in preventive medicine. Aptamers, as novel probes, have attracted much attention due to their high specificity, wide storage conditions, and simple preparation. However, the interaction mechanism between GA and its aptamer is still unclear, hindering the progress of diabetic aptamer sensors into clinical testing. In this study, the interaction mechanism between GA and its aptamer was evaluated for the first time using surface plasmon resonance by changing the pH value, salt concentration and temperature. The successful preparation of the sensor chip is proved by the water contact angle, Atomic Force Microscope, and the X-ray photoelectron spectroscopy. This study shows that the pH can greatly affect the formation of a complex from the interaction between the aptamer and GA. The interaction mechanism between GA aptamer and GA was caused by electrostatic force. Otherwise, this is the first time to detect protein isoelectric point (pI) using SPR. This study provides an important reference for researchers of aptamer sensors from the perspective of detection environment, and promotes the use of aptamer sensors to the clinic.
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Affiliation(s)
- Dapeng Sun
- Institute of Microelectronics of Chinese Academy of Sciences, Beijing 100029, China; University of Chinese Academy of Sciences, No.19 A Yuquan Road, Beijing 100049, China; Research Center for Materials Science and Opti-Electronic Technology, College of Materials Science and Opti-Electronic Technology, University of Chinese Academy of Sciences, No.19 A Yuquan Road, Beijing 100049, China
| | - Jing Xie
- Institute of Microelectronics of Chinese Academy of Sciences, Beijing 100029, China; University of Chinese Academy of Sciences, No.19 A Yuquan Road, Beijing 100049, China
| | - Ching-Jung Chen
- University of Chinese Academy of Sciences, No.19 A Yuquan Road, Beijing 100049, China; School of Opto-Electronic Technology, University of Chinese Academy of Sciences, China.
| | - Jen-Tsai Liu
- University of Chinese Academy of Sciences, No.19 A Yuquan Road, Beijing 100049, China; Research Center for Materials Science and Opti-Electronic Technology, College of Materials Science and Opti-Electronic Technology, University of Chinese Academy of Sciences, No.19 A Yuquan Road, Beijing 100049, China.
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2
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Ji J, Liu F, Hashim NA, Abed MM, Li K. Poly(vinylidene fluoride) (PVDF) membranes for fluid separation. REACT FUNCT POLYM 2015. [DOI: 10.1016/j.reactfunctpolym.2014.09.023] [Citation(s) in RCA: 64] [Impact Index Per Article: 7.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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3
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Biomimetic block copolymer particles with gated nanopores and ultrahigh protein sorption capacity. Nat Commun 2014; 5:4110. [PMID: 24934665 DOI: 10.1038/ncomms5110] [Citation(s) in RCA: 105] [Impact Index Per Article: 10.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/09/2013] [Accepted: 05/14/2014] [Indexed: 01/22/2023] Open
Abstract
The design of micro- or nanoparticles that can encapsulate sensitive molecules such as drugs, hormones, proteins or peptides is of increasing importance for applications in biotechnology and medicine. Examples are micelles, liposomes and vesicles. The tiny and, in most cases, hollow spheres are used as vehicles for transport and controlled administration of pharmaceutical drugs or nutrients. Here we report a simple strategy to fabricate microspheres by block copolymer self-assembly. The microsphere particles have monodispersed nanopores that can act as pH-responsive gates. They contain a highly porous internal structure, which is analogous to the Schwarz P structure. The internal porosity of the particles contributes to their high sorption capacity and sustained release behaviour. We successfully separated similarly sized proteins using these particles. The ease of particle fabrication by macrophase separation and self-assembly, and the robustness of the particles makes them ideal for sorption, separation, transport and sustained delivery of pharmaceutical substances.
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4
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Wibisono Y, Cornelissen E, Kemperman A, van der Meer W, Nijmeijer K. Two-phase flow in membrane processes: A technology with a future. J Memb Sci 2014. [DOI: 10.1016/j.memsci.2013.10.072] [Citation(s) in RCA: 86] [Impact Index Per Article: 8.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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5
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Qiu X, Yu H, Karunakaran M, Pradeep N, Nunes SP, Peinemann KV. Selective separation of similarly sized proteins with tunable nanoporous block copolymer membranes. ACS NANO 2013; 7:768-76. [PMID: 23252799 DOI: 10.1021/nn305073e] [Citation(s) in RCA: 179] [Impact Index Per Article: 16.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/04/2023]
Abstract
An integral asymmetric membrane was fabricated in a fast and one-step process by combining the self-assembly of an amphiphilic block copolymer (PS-b-P4VP) with nonsolvent-induced phase separation. The structure was found to be composed of a thin layer of densely packed highly ordered cylindrical channels with uniform pore sizes perpendicular to the surface on top of a nonordered sponge-like layer. The as-assembled membrane obtained a water flux of more than 3200 L m(-2) h(-1) bar(-1), which was at least an order of magnitude higher than the water fluxes of commercially available membranes with comparable pore sizes, making this membrane particularly well suited to size-selective and charge-based separation of biomolecules. To test the performance of the membrane, we conducted diffusion experiments at the physiological pH of 7.4 using bovine serum albumin (BSA) and globulin-γ, two proteins with different diameters but too close in size (2-fold difference in molecular mass) to be efficiently separated via conventional dialysis membrane processes. The diffusion rate differed by a factor of 87, the highest value reported to date. We also analyzed charge-based diffusive transport and separation of two proteins of similar molecular weight (BSA and bovine hemoglobin (BHb)) through the membrane as a function of external pH. The membrane achieved a selectivity of about 10 at pH 4.7, the isoelectric point (pI) of BSA. We then positively charged the membrane to improve the separation selectivity. With the modified membrane BSA was completely blocked when the pH was 7.0, the pI of BHb, while BHb was completely blocked at pH 4.7. Our results demonstrate the potential of our asymmetric membrane to efficiently separate biological substances/pharmaceuticals in bioscience, biotechnology, and biomedicine applications.
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Affiliation(s)
- Xiaoyan Qiu
- Advanced Membranes and Porous Materials Center, 4700 King Abdullah University of Science and Technology (KAUST), Thuwal 23955-6900, Kingdom of Saudi Arabia
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Alsalhy QF, Albyati TM, Zablouk MA. A STUDY OF THE EFFECT OF OPERATING CONDITIONS ON REVERSE OSMOSIS MEMBRANE PERFORMANCE WITH AND WITHOUT AIR SPARGING TECHNIQUE. CHEM ENG COMMUN 2013. [DOI: 10.1080/00986445.2012.685529] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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7
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Pinto SIS, Miranda JM, Campos JBLM. A Numerical Study of the Apparent Selectivity in the Fractionation of Two Macromolecules by Ultrafiltration. SEP SCI TECHNOL 2012. [DOI: 10.1080/01496395.2011.640380] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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9
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Mayani M, Mohanty K, Filipe C, Ghosh R. Continuous fractionation of plasma proteins HSA and HIgG using cascade ultrafiltration systems. Sep Purif Technol 2009. [DOI: 10.1016/j.seppur.2009.10.002] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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10
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Wan Y, Cui Z, Ghosh R. Fractionation of Proteins Using Ultrafiltration: Developments and Challenges. ACTA ACUST UNITED AC 2008. [DOI: 10.1002/apj.5500130112] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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11
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Removal of suspended particles from extract of tuna spleen by microfiltration: Experimental evaluation of a low fouling condition. J FOOD ENG 2008. [DOI: 10.1016/j.jfoodeng.2007.07.004] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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12
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Li ZY, H-Kittikun A, Youravong W. Separation of protease from yellowfin tuna spleen extract by ultrafiltration: Effect of hydrodynamics and gas sparging on flux enhancement and selectivity. J Memb Sci 2008. [DOI: 10.1016/j.memsci.2007.11.057] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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13
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Li Z, H-Kittikun A, Youravong W. Removal of suspended solids from tuna spleen extract by microfiltration: A batch process design and improvement. Biochem Eng J 2008. [DOI: 10.1016/j.bej.2007.07.005] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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14
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Separation of glucose oxidase and catalase using ultrafiltration with 300-kDa polyethersulfone membranes. J Memb Sci 2007. [DOI: 10.1016/j.memsci.2007.04.044] [Citation(s) in RCA: 15] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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15
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Striemer CC, Gaborski TR, McGrath JL, Fauchet PM. Charge- and size-based separation of macromolecules using ultrathin silicon membranes. Nature 2007; 445:749-53. [PMID: 17301789 DOI: 10.1038/nature05532] [Citation(s) in RCA: 432] [Impact Index Per Article: 25.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/2006] [Accepted: 11/20/2006] [Indexed: 11/09/2022]
Abstract
Commercial ultrafiltration and dialysis membranes have broad pore size distributions and are over 1,000 times thicker than the molecules they are designed to separate, leading to poor size cut-off properties, filtrate loss within the membranes, and low transport rates. Nanofabricated membranes have great potential in molecular separation applications by offering more precise structural control, yet transport is also limited by micrometre-scale thicknesses. This limitation can be addressed by a new class of ultrathin nanostructured membranes where the membrane is roughly as thick (approximately 10 nm) as the molecules being separated, but membrane fragility and complex fabrication have prevented the use of ultrathin membranes for molecular separations. Here we report the development of an ultrathin porous nanocrystalline silicon (pnc-Si) membrane using straightforward silicon fabrication techniques that provide control over average pore sizes from approximately 5 nm to 25 nm. Our pnc-Si membranes can retain proteins while permitting the transport of small molecules at rates an order of magnitude faster than existing materials, separate differently sized proteins under physiological conditions, and separate similarly sized molecules carrying different charges. Despite being only 15 nm thick, pnc-Si membranes that are free-standing over 40,000 microm2 can support a full atmosphere of differential pressure without plastic deformation or fracture. By providing efficient, low-loss macromolecule separations, pnc-Si membranes are expected to enable a variety of new devices, including membrane-based chromatography systems and both analytical and preparative microfluidic systems that require highly efficient separations.
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Affiliation(s)
- Christopher C Striemer
- Department of Electrical and Computer Engineering, University of Rochester, Rochester, New York 14627, USA.
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16
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Gironès M, Bolhuis-Versteeg LAM, Lammertink RGH, Wessling M. Flux stabilization of silicon nitride microsieves by backpulsing and surface modification with PEG moieties. J Colloid Interface Sci 2006; 299:831-40. [PMID: 16603173 DOI: 10.1016/j.jcis.2006.03.006] [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: 01/31/2006] [Revised: 03/03/2006] [Accepted: 03/03/2006] [Indexed: 11/26/2022]
Abstract
The influence of the surface properties of chemically modified silicon nitride microsieves on the filtration of protein solutions and defatted milk is described in this research. Prior to membrane filtrations, an antifouling polymer based on poly(ethylene glycol), poly(TMSMA-r-PEGMA) was synthesized and applied on silicon-based surfaces like silicon, silicon nitride, and glass. The ability of such coating to repel proteins like bovine serum albumin (BSA) was confirmed by ellipsometry and confocal fluorescence microscopy. In BSA and skimmed milk filtrations no differences could be seen between unmodified and PEG-coated membranes (decreasing permeability in time). On the other hand, reduced fouling was observed with PEG-modified microsieves in combination with backpulsing and air sparging.
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Affiliation(s)
- M Gironès
- Membrane Technology Group, Faculty of Science and Technology, University of Twente, P.O. Box 217, 7500 AE Enschede, The Netherlands
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17
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Enhancement of membrane permeability by gas-sparging in submerged hollow fibre ultrafiltration of macromolecular solutions: Role of module design. J Memb Sci 2006. [DOI: 10.1016/j.memsci.2005.08.002] [Citation(s) in RCA: 30] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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18
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19
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Cui Z. Protein separation using ultrafiltration — an example of multi-scale complex systems. ACTA ACUST UNITED AC 2005. [DOI: 10.1016/s1672-2515(07)60213-9] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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20
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Wan Y, Vasan S, Ghosh R, Hale G, Cui Z. Separation of monoclonal antibody alemtuzumab monomer and dimers using ultrafiltration. Biotechnol Bioeng 2005; 90:422-32. [PMID: 15812802 DOI: 10.1002/bit.20416] [Citation(s) in RCA: 26] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
This article examines the feasibility of using ultrafiltration to separate the monomer of the monoclonal antibody alemtuzumab (Campath or Campath-1H) from a mixture of dimer and higher-order oligomers (collectively called "dimers" here). Using parameter scanning ultrafiltration, we initially assessed the suitability of the following membranes: 100 kDa and 300 kDa polyethersulfone (PES) membranes, and a 100 kDa polyvinylidene fluoride (PVDF) membrane. A detailed study was then carried out to examine the effects of operating conditions (such as solution pH, ionic strength, stirring speed, and permeate flux) on the separation of the monomer from the dimers using 300 kDa PES and 100 kDa PVDF membranes. Results of the experiments carried out in the carrier phase ultrafiltration (CPUF) mode indicate that the size-based protein-protein separation critically depends on the membrane used as well as the system hydrodynamics. The separation of the monoclonal antibody monomer and dimers using 100 kDa PVDF membranes in the diafiltration mode was also examined. Experimental results demonstrate that under suitable conditions, it is feasible to obtain the alemtuzumab monomer with a purity of more than 93% and a yield of more than 85% (from a mixture of 75% monomer and 25% dimers, which is the typical composition obtained after affinity chromatography). Simulation study indicates that this could be further improved to a purity of more than 96% and a monomer yield of more than 96% by increasing the selectivity of separation or by employing a two-stage diafiltration process.
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Affiliation(s)
- Yinhua Wan
- Department of Engineering Science, University of Oxford, Oxford OX1 3PJ, United Kingdom
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Wan Y, Ghosh R, Hale G, Cui Z. Fractionation of bovine serum albumin and monoclonal antibody alemtuzumab using carrier phase ultrafiltration. Biotechnol Bioeng 2005; 90:303-15. [PMID: 15803473 DOI: 10.1002/bit.20415] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Abstract
Protein transmission and hence selectivity of separation can be significantly affected by solution pH and ionic strength in protein fractionation using ultrafiltration. Using parameter scanning ultrafiltration, the transmission of bovine serum albumin (BSA) and monoclonal antibody alemtuzumab (Campath-1H) through 300 kDa polyethersulfone (PES) ultrafiltration membranes were studied over a range of pH and salt concentrations, with focus on the likely conditions for achieving "reverse selectivity," i.e., obtaining purified alemtuzumab (approximately 155 kDa) in the permeate. Experimental results demonstrate that the reverse selectivity could be obtained by manipulating the operating conditions such as the solution pH, ionic strength, permeate flux, and system hydrodynamics. With a two-stage batch ultrafiltration process under suitable conditions, the monoclonal antibody alemtuzumab with a purity of > 98% was obtained in the permeate from a feed solution initially containing 0.50 g/l each of BSA and alemtuzumab. Further purity can be expected by selecting more suitable membranes and optimizing operating conditions.
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Affiliation(s)
- Yinhua Wan
- Department of Engineering Science, University of Oxford, Oxford OX1, 3PJ, United Kingdom
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22
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Mercier-Bonin M, Fonade C, Gésan-Guiziou G. Application of gas/liquid two-phase flows during crossflow microfiltration of skimmed milk under constant flux conditions. Chem Eng Sci 2004. [DOI: 10.1016/j.ces.2004.03.002] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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23
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Study of ultrafiltration of a single and binary protein solution in a thin spiral channel module. J Memb Sci 2003. [DOI: 10.1016/j.memsci.2003.07.020] [Citation(s) in RCA: 31] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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Mercier-Bonin M, Fonade C. Enzyme transmission during crossflow filtration of yeast suspensions using gas/liquid two-phase flows. Ann N Y Acad Sci 2003; 984:480-91. [PMID: 12783839 DOI: 10.1111/j.1749-6632.2003.tb06021.x] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
Abstract
The optimal conditions for recovery of an enzyme were determined using gas/liquid two-phase flows. When filtering the enzyme-only solution under single-phase flow conditions, severe fouling occurred. This fouling was manifest as a decline in flux to less than 2% of the initial water flux and a decline in protein concentration in the permeate to 30% of its initial value, during a five-hour filtration period. When yeast cells were added under the same experimental conditions, enzyme transmission was maintained at 100% for the five-hour period and the enzyme mass flux was twofold higher. During gas-sparged microfiltration of the enzyme/yeast mixture in a permeate-recycling mode at the same liquid flow rate, gas/liquid slug flow strongly decreased the transmission of the enzyme (70% decrease), even though the permeate flux was improved (140% improvement). As a result, the mass flux of the enzyme was significantly reduced. However, with a bubble flow pattern, the permeate flux was 1.5 times higher and the transmission was maintained at a high level. The enzyme mass flux was then 25% higher when compared to single-phase flow filtration conditions. During diafiltration experiments with a bubble flow pattern, a 13% higher enzyme recovery was achieved.
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Affiliation(s)
- Muriel Mercier-Bonin
- Centre de Bioingénierie Gilbert Durand, UMR INSA-CNRS 5504, UMR INSA-INRA 792, Toulouse, France.
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Mercier-Bonin M, Fonade C. Enzyme recovery during gas/liquid two-phase flow microfiltration of enzyme/yeast mixtures. Biotechnol Bioeng 2002; 80:610-21. [PMID: 12378602 DOI: 10.1002/bit.10415] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Abstract
The effect of a gas/liquid two-phase flow on the recovery of an enzyme was evaluated and compared with standard crossflow operation when confronted with the microfiltration of a high-fouling yeast suspension. Ceramic tubular and flat sheet membranes were used. At constant feed concentration (permeate recycling) and transmembrane pressure, the results obtained with the tubular membrane were dependent on the two-phase flow pattern. In comparison with single-phase flow performances at the same liquid velocity, the enzyme transmission was maintained at a high level with a bubble flow pattern but it decreased by 70% with a slug flow, whatever the flow rate ratio. Identical results were obtained with flat sheet membranes: for the highest flow rate ratio, the enzyme transmission was reduced by 70% even though the permeate flux was improved by 240%. During diafiltration experiments with the tubular membrane, it was found that a bubble flow pattern led to a 13% higher enzyme recovery compared to single-phase flow conditions, whereas with a slug flow the enzyme recovery was strongly reduced. With bubble flow conditions, energy consumption was minimal, confirming that this flow pattern was the most suitable for enzyme recovery.
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Affiliation(s)
- Muriel Mercier-Bonin
- Centre de Bioingénierie Gilbert Durand, UMR INSA-CNRS 5504 UMR INSA-INRA 792, 135, Avenue de Rangueil, 31077 Toulouse cedex 4, France.
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