1
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Mohammadzadehmarandi A, Zydney AL. Buffer effects on protein sieving losses in ultrafiltration and their relationship to biophysical properties. Biotechnol Prog 2024:e3481. [PMID: 38780204 DOI: 10.1002/btpr.3481] [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: 02/10/2024] [Revised: 04/05/2024] [Accepted: 05/08/2024] [Indexed: 05/25/2024]
Abstract
The design of effective ultrafiltration/diafiltration processes for protein formulation requires the use of membranes with very high protein retention. The objective of this study was to examine the effects of specific buffers on the retention of a model protein (bovine serum albumin) during ultrafiltration. Albumin retention at pH 4.8 was significantly reduced in phosphate buffer compared with that in acetate, citrate, and histidine. This behavior was consistent with a small change in the effective albumin hydrodynamic diameter as determined by dynamic light scattering. The underlying conformational changes leading to this change in diameter were explored using circular dichroism spectroscopy and differential scanning calorimetry. These results provide important insights into the factors controlling protein retention during ultrafiltration and diafiltration.
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Affiliation(s)
- Aylin Mohammadzadehmarandi
- Department of Chemical Engineering, The Pennsylvania State University, University Park, Pennsylvania, USA
| | - Andrew L Zydney
- Department of Chemical Engineering, The Pennsylvania State University, University Park, Pennsylvania, USA
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2
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Zhao H, He T, Yao S, Tao L, Zhang X, Wang Z, Cui Z, Chen R. Improved Protein Removal Performance of PES Hollow-Fiber Ultrafiltration Membrane with Sponge-like Structure. Polymers (Basel) 2024; 16:1194. [PMID: 38732663 PMCID: PMC11085754 DOI: 10.3390/polym16091194] [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: 02/19/2024] [Revised: 04/05/2024] [Accepted: 04/10/2024] [Indexed: 05/13/2024] Open
Abstract
The research used polyethersulfone (PES) as a membrane material, polyvinylpyrrolidone (PVP) k30 and polyethylene glycol 400 (PEG 400) as water-soluble additives, and dimethylacetamide (DMAc) as a solvent to prepare hollow-fiber ultrafiltration membranes through a nonsolvent-induced phase separation (NIPS) process. The hydrophilic nature of PVP-k30 and PEG caused them to accumulate on the membrane surface during phase separation. The morphology, chemical composition, surface charge, and pore size of the PES membranes were evaluated by SEM, FTIR, zeta potential, and dextran filtration experiments. The paper also investigated how different spinning solution compositions affected membrane morphology and performance. The separation efficiency of membranes with four different morphologies was tested in single-protein and double-protein mixed solutions. The protein separation effectiveness of the membrane was studied through molecular weight cutoff, zeta potential, and static protein adsorption tests. In addition, the operating pressure and pH value were adjusted to improve ultrafiltration process conditions. The PES membrane with an intact sponge-like structure showed the highest separation factor of 11, making it a prime candidate membrane for the separation of bovine serum albumin (BSA) and lysozyme (LYS). The membrane had a minimal static protein adsorption capacity of 48 mg/cm2 and had excellent anti-fouling properties. When pH = 4, the BSA retention rate was 93% and the LYS retention rate was 23%. Furthermore, it exhibited excellent stability over a pH range of 1-13, confirming its suitability for protein separation applications.
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Affiliation(s)
- Huyang Zhao
- State Key Laboratory of Materials-Oriented Chemical Engineering, College of Chemical Engineering, Nanjing Tech University, Nanjing 210009, China; (H.Z.); (T.H.); (L.T.); (X.Z.); (R.C.)
- National Engineering Research Center for Special Separation Membrane, Nanjing Tech University, Nanjing 210009, China
| | - Ting He
- State Key Laboratory of Materials-Oriented Chemical Engineering, College of Chemical Engineering, Nanjing Tech University, Nanjing 210009, China; (H.Z.); (T.H.); (L.T.); (X.Z.); (R.C.)
- National Engineering Research Center for Special Separation Membrane, Nanjing Tech University, Nanjing 210009, China
| | - Shuang Yao
- State Key Laboratory of Materials-Oriented Chemical Engineering, College of Chemical Engineering, Nanjing Tech University, Nanjing 210009, China; (H.Z.); (T.H.); (L.T.); (X.Z.); (R.C.)
- National Engineering Research Center for Special Separation Membrane, Nanjing Tech University, Nanjing 210009, China
| | - Long Tao
- State Key Laboratory of Materials-Oriented Chemical Engineering, College of Chemical Engineering, Nanjing Tech University, Nanjing 210009, China; (H.Z.); (T.H.); (L.T.); (X.Z.); (R.C.)
- National Engineering Research Center for Special Separation Membrane, Nanjing Tech University, Nanjing 210009, China
| | - Xinhai Zhang
- State Key Laboratory of Materials-Oriented Chemical Engineering, College of Chemical Engineering, Nanjing Tech University, Nanjing 210009, China; (H.Z.); (T.H.); (L.T.); (X.Z.); (R.C.)
- National Engineering Research Center for Special Separation Membrane, Nanjing Tech University, Nanjing 210009, China
| | - Zhaohui Wang
- State Key Laboratory of Materials-Oriented Chemical Engineering, College of Chemical Engineering, Nanjing Tech University, Nanjing 210009, China; (H.Z.); (T.H.); (L.T.); (X.Z.); (R.C.)
- National Engineering Research Center for Special Separation Membrane, Nanjing Tech University, Nanjing 210009, China
- Jiangsu National Synergetic Innovation Center for Advanced Materials (SICAM), Nanjing Tech University, Nanjing 210009, China
| | - Zhaoliang Cui
- State Key Laboratory of Materials-Oriented Chemical Engineering, College of Chemical Engineering, Nanjing Tech University, Nanjing 210009, China; (H.Z.); (T.H.); (L.T.); (X.Z.); (R.C.)
- National Engineering Research Center for Special Separation Membrane, Nanjing Tech University, Nanjing 210009, China
- Jiangsu National Synergetic Innovation Center for Advanced Materials (SICAM), Nanjing Tech University, Nanjing 210009, China
| | - Rizhi Chen
- State Key Laboratory of Materials-Oriented Chemical Engineering, College of Chemical Engineering, Nanjing Tech University, Nanjing 210009, China; (H.Z.); (T.H.); (L.T.); (X.Z.); (R.C.)
- National Engineering Research Center for Special Separation Membrane, Nanjing Tech University, Nanjing 210009, China
- Jiangsu National Synergetic Innovation Center for Advanced Materials (SICAM), Nanjing Tech University, Nanjing 210009, China
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Tanjung YP, Dewi MK, Gatera VA, Barliana MI, Joni IM, Chaerunisaa AY. Factors Affecting the Synthesis of Bovine Serum Albumin Nanoparticles Using the Desolvation Method. Nanotechnol Sci Appl 2024; 17:21-40. [PMID: 38314401 PMCID: PMC10838516 DOI: 10.2147/nsa.s441324] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/16/2023] [Accepted: 01/17/2024] [Indexed: 02/06/2024] Open
Abstract
Currently, protein-based nanoparticles are in high demand as drug delivery systems due to their exceptional qualities, including nontoxicity, nonantigenicity, and biodegradability. Other qualities include high nutritional value, abundance of renewable resources, excellent drug binding capacity, greater stability during storage and in vivo, as well as ease of upgrading during manufacture. Examples of protein suitable for this purpose include ovalbumin (OVA) derived from egg white, human serum albumin (HSA), and bovine serum albumin (BSA). To create albumin nanoparticles, six different processes have been investigated in depth and are frequently used in drug delivery systems. These included desolvation, thermal gelation, emulsification, NAB technology, self-assembly, and nanospray drying. Several experimental conditions in the synthesis of albumin nanoparticles can affect the physicochemical characterization. Therefore, this study aimed to provide an overview of various experimental conditions capable of affecting the physicochemical characteristics of BSA nanoparticles formed using the desolvation method. By considering the variation in optimal experimental conditions, a delivery system of BSA nanoparticles with the best physicochemical characterization results could be developed.
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Affiliation(s)
- Yenni Puspita Tanjung
- Department of Pharmaceutics and Pharmaceutical Technology, Faculty of Pharmacy, Universitas Padjadjaran, Bandung, Indonesia
- Bumi Siliwangi Academy of Pharmacy, Bandung, West Java, Indonesia
| | - Mayang Kusuma Dewi
- Department of Pharmaceutics and Pharmaceutical Technology, Faculty of Pharmacy, Universitas Padjadjaran, Bandung, Indonesia
| | - Vesara Ardhe Gatera
- Center of Excellence in Higher Education for Pharmaceutical Care Innovation, Universitas Padjadjaran, Bandung, Indonesia
- Department of Pharmacy and Health Sciences, Universiti Kuala Lumpur - Royal College of Medicine Perak, Ipoh, Perak, Malaysia
| | - Melisa Intan Barliana
- Center of Excellence in Higher Education for Pharmaceutical Care Innovation, Universitas Padjadjaran, Bandung, Indonesia
- Department of Biological Pharmacy, Faculty of Pharmacy, Universitas Padjadjaran, Bandung, Indonesia
| | - I Made Joni
- Department of Physics, Faculty of Mathematics and Natural Science, Universitas Padjadjaran, Bandung, Indonesia
- Functional Nano Powder University Center of Excellence (FiNder U CoE), Universitas Padjadjaran, Bandung, Indonesia
| | - Anis Yohana Chaerunisaa
- Department of Pharmaceutics and Pharmaceutical Technology, Faculty of Pharmacy, Universitas Padjadjaran, Bandung, Indonesia
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4
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Vyas D, Wairkar S. Effect of variables on exemestane-loaded albumin nanoparticles: statistical optimization and anti-cancer activity in MCF-7 cell lines. Pharm Dev Technol 2023; 28:1048-1055. [PMID: 37987762 DOI: 10.1080/10837450.2023.2285925] [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: 04/04/2023] [Accepted: 11/16/2023] [Indexed: 11/22/2023]
Abstract
This research aimed to evaluate the effect of variables on exemestane-loaded bovine serum albumin nanoparticles (EXE-BSA NPs) to improve anti-breast cancer activity. EXE-BSA NPs were optimized using 32 factorial design, wherein the concentration of BSA (X1) and sonication time (X2) were independent variables and particle size (Y1) and %w/w entrapment efficiency (Y2) were dependent variables. The statistical optimization revealed a significant effect of BSA concentration on both variables, whereas sonication time affected only particle size. The optimized EXE-BSA NPs were spherical with 124.1 ± 2.62 nm particle size, 83.95 ± 1.06% w/w drug entrapment, and exhibited a biphasic release of 100% (w/w) drug over 72 h. The optimized formulation induced cytotoxicity in MCF-7 cell lines with an IC50 value of 21.46 µg/mL by MTT assay, almost half the free drug (54.87 µg/mL). Thus, statistically optimized EXE-BSA NPs were effective in MCF-7 cell lines and can be explored to treat estrogen receptor-positive breast cancer.
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Affiliation(s)
- Darshan Vyas
- Shobhaben Pratapbhai Patel School of Pharmacy & Technology Management, SVKMs Narsee Monjee Institute of Management Studies (NMIMS) Deemed-to-University, Mumbai, India
| | - Sarika Wairkar
- Shobhaben Pratapbhai Patel School of Pharmacy & Technology Management, SVKMs Narsee Monjee Institute of Management Studies (NMIMS) Deemed-to-University, Mumbai, India
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5
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Wang Q, Lin W, Chou S, Dai P, Huang X. Patterned membranes for improving hydrodynamic properties and mitigating membrane fouling in water treatment: A review. WATER RESEARCH 2023; 236:119943. [PMID: 37054608 DOI: 10.1016/j.watres.2023.119943] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/25/2023] [Revised: 03/27/2023] [Accepted: 04/04/2023] [Indexed: 06/19/2023]
Abstract
Membrane technologies have been widely applied in water treatment over the past few decades. However, membrane fouling remains a hinderance for the widespread use of membrane processes because it decreases effluent quality and increases operating costs. To mitigate membrane fouling, researchers have been exploring effective anti-fouling strategies. Recently, patterned membranes are gaining attention as a novel non-chemical membrane modification for membrane fouling control. In this paper, we review the research on patterned membranes used in water treatment over the past 20 years. In general, patterned membranes show superior anti-fouling performances, which mainly results from two aspects: hydrodynamic effects and interaction effects. Due to the introduction of diversified topographies onto the membrane surface, patterned membranes yield dramatic improvements on hydrodynamic properties, e.g., shear stress, velocity field and local turbulence, restraining concentration polarization and foulants' deposition on the membrane surface. Besides, the membrane-foulant and foulant-foulant interactions play an important role in the mitigation of membrane fouling. Due to the existence of surface patterns, the hydrodynamic boundary layer is destroyed and the interaction force as well as the contact area between foulants and surface are decreased, which contributes to the fouling suppression. However, there are still some limitations in the research and application of patterned membranes. Future research is suggested to focus on the development of patterned membranes appropriate for different water treatment scenarios, the insights into the interaction forces affected by surface patterns, and the pilot-scale and long-term studies to verify the anti-fouling performances of patterned membranes in practical applications.
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Affiliation(s)
- Qiao Wang
- State Key Joint Laboratory of Environment Simulation and Pollution Control, School of Environment, Tsinghua University, Beijing, 100084, China
| | - Weichen Lin
- State Key Joint Laboratory of Environment Simulation and Pollution Control, School of Environment, Tsinghua University, Beijing, 100084, China.
| | - Shuren Chou
- Beijing OriginWater Membrane Technology Co., Ltd, Beijing 101407, China
| | - Pan Dai
- Beijing OriginWater Membrane Technology Co., Ltd, Beijing 101407, China
| | - Xia Huang
- State Key Joint Laboratory of Environment Simulation and Pollution Control, School of Environment, Tsinghua University, Beijing, 100084, China; Research and Application Center for Membrane Technology, School of Environment, Tsinghua University, Beijing 100084, China.
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6
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Synthesis of reverse-selective nanoporous ultrafiltration membranes using dual phase separations of ionic liquid and Poly(ethylene glycol) from the gelating urea-linked covalent network. J Memb Sci 2022. [DOI: 10.1016/j.memsci.2022.121341] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
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7
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Castro-Muñoz R, Serna-Vázquez J, García-Depraect O. Current evidence in high throughput ultrafiltration toward the purification of monoclonal antibodies (mAbs) and biotechnological protein-type molecules. Crit Rev Biotechnol 2021; 42:827-837. [PMID: 34538152 DOI: 10.1080/07388551.2021.1947182] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
Abstract
Pressure-driven membrane-based technologies, such as microfiltration (MF), ultrafiltration (UF), and nanofiltration (NF), have been successfully implemented in recovering different types of biomolecules and high-value-added compounds from various streams. Especially, UF membranes meet the requirements for separating specific bioproducts in downstream processes, e.g. monoclonal antibodies (mAbs), which are recognized as proteins produced mainly by plasma cells. According to the importance and functionality of the mAbs, their recovery is a current challenge with these bioseparations. Nevertheless, mAbs recovery using UF-assisted processes has been smartly performed over the last decade. To the best of our knowledge, there are no reviews of the reported developments using UF technology toward mAbs separation. Therefore, the goal of this paper is to collect and elucidate ongoing research studies implemented for the featured separation of mAbs and other biotechnological protein-type molecules (e.g. adenovirus serotype, extracellular vesicles, red fluorescent protein, cyanovirin-N, among others) via ultrafiltration-aided systems. The literature evidence (e.g. research papers, patents, etc.) has been analyzed and discussed according to the purpose of the study. Importantly, the relevant findings and novel approaches are discussed in detail. To finalize this document, the advantages, drawbacks, and guidelines in applying membrane-based techniques for such a recovery are presented.
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Affiliation(s)
- Roberto Castro-Muñoz
- Department of Process Engineering and Chemical Technology, Faculty of Chemistry, Gdansk University of Technology, Gdansk, Poland.,Tecnologico de Monterrey, Toluca de Lerdo, Mexico
| | - Julio Serna-Vázquez
- Tecnologico de Monterrey, Ciudad de México, Mexico.,Department of Human Genetics, McGill University, 3640 rue University, Montreal, Canada
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8
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Sridhar A, Krishnasamy Sekar R, Manikandan DB, Arumugam M, Veeran S, Ramasamy T. Activity profile of innate immune-related enzymes and bactericidal of freshwater fish epidermal mucus extract at different pH. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2021; 28:33914-33926. [PMID: 33090344 DOI: 10.1007/s11356-020-11173-5] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/04/2020] [Accepted: 10/06/2020] [Indexed: 06/11/2023]
Abstract
The epidermal mucus of fish performs diverse functions from prevention of mechanical abrasion to limit pathogen invasions. The current experiment was designed to extract skin mucus proteins of three freshwater fish, i.e. common carp (Cyprinus carpio), mrigal (Cirrhinus mrigala) and rohu (Labeo rohita) with organic solvent (methanol) and dissolve in different pH of Tris-HCl buffers to examine the significance of pH in the solubilisation of skin mucus proteins. The protein profiles of different pH solubilised methanol fish skin mucus extracts were determined by SDS-PAGE. The non-specific immune enzymes, alkaline phosphatase, lysozyme and protease of fish skin mucus were compared and this present study demonstrated that these enzymes differed in their activity depending on pH buffers. The higher lysozyme and protease activity were observed at the pH of 8.0 and higher alkaline phosphatase activity in the pH 9.0 of C. mrigala fish skin mucus methanol extract. In addition, the bactericidal activity was evaluated against the pathogens Proteus vulgaris and Pseudomonas aeruginosa. The pH 8.0 of C. mrigala skin mucus extract revealed better bactericidal activity than other fish species mucus pH buffers against both P. vulgaris and P. aeruginosa. In the case of protein profile from SDS-PAGE, based on pH buffers and the solubilisation of proteins, differences in the resolution of bands were observed. The higher alkaline pH of 9.0 showed smeared gel bands in all the three fish skin mucus methanol extract. The present study suggests that methanol extracted C. mrigala fish skin mucus at pH 8.0 showed better innate immune enzymes and bactericidal activity. The additional examinations of C. mrigala skin mucus methanol extract in this pH aids in identifying novel bioactive molecules. This is the study of proteome of three fish species skin mucus in the effect of pH. Further analyses are required to evaluate proteins present in fish skin mucus extracted with methanol and the influence of pH on protein solubility. These findings could be helpful in exploring natural alternatives to antibiotics in aquaculture industry against infectious pathogens.
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Affiliation(s)
- Arun Sridhar
- Laboratory of Aquabiotics/Nanoscience, Department of Animal Science, School of Life Sciences, Bharathidasan University, Tiruchirappalli, Tamil Nadu, 620 024, India
| | - Rajkumar Krishnasamy Sekar
- Laboratory of Aquabiotics/Nanoscience, Department of Animal Science, School of Life Sciences, Bharathidasan University, Tiruchirappalli, Tamil Nadu, 620 024, India
| | - Dinesh Babu Manikandan
- Laboratory of Aquabiotics/Nanoscience, Department of Animal Science, School of Life Sciences, Bharathidasan University, Tiruchirappalli, Tamil Nadu, 620 024, India
| | - Manikandan Arumugam
- Laboratory of Aquabiotics/Nanoscience, Department of Animal Science, School of Life Sciences, Bharathidasan University, Tiruchirappalli, Tamil Nadu, 620 024, India
| | - Srinivasan Veeran
- Laboratory of Aquabiotics/Nanoscience, Department of Animal Science, School of Life Sciences, Bharathidasan University, Tiruchirappalli, Tamil Nadu, 620 024, India
| | - Thirumurugan Ramasamy
- Laboratory of Aquabiotics/Nanoscience, Department of Animal Science, School of Life Sciences, Bharathidasan University, Tiruchirappalli, Tamil Nadu, 620 024, India.
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9
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Recent Advancements of UF-Based Separation for Selective Enrichment of Proteins and Bioactive Peptides—A Review. APPLIED SCIENCES-BASEL 2021. [DOI: 10.3390/app11031078] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Abstract
Proteins are one of the primary building blocks that have significant functional properties to be applied in food and pharmaceutical industries. Proteins could be beneficial in their concentrated products or isolates, of which membrane-based filtration methods such as ultrafiltration (UF) encompass application in broad spectra of protein sources. More importantly, selective enrichment by UF is of immense interest due to the presence of antinutrients that may dominate their perspicuous bioactivities. UF process is primarily obstructed by concentration polarization and fouling; in turn, a trade-off between productivity and selectivity emerges, especially when pure isolates are an ultimate goal. Several factors such as operating conditions and membrane equipment could leverage those pervasive contributions; therefore, UF protocols should be optimized for each unique protein mixture and mode of configuration. For instance, employing charged UF membranes or combining UF membranes with electrodialysis enables efficient separation of proteins with a similar molecular weight, which is hard to achieve by the conventional UF membrane. Meanwhile, some proposed strategies, such as utilizing ultrasonic waves, tuning operating conditions, and modifying membrane surfaces, can effectively mitigate fouling issues. A plethora of advancements in UF, from their membrane material modification to the arrangement of new configurations, contribute to the quest to actualize promising potentials of protein separation by UF, and they are reviewed in this paper.
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10
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Production and purification of fructo-oligosaccharides using an enzyme membrane bioreactor and subsequent fermentation with probiotic Bacillus coagulans. Sep Purif Technol 2020. [DOI: 10.1016/j.seppur.2020.117291] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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11
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Opdensteinen P, Clodt JI, Müschen CR, Filiz V, Buyel JF. A Combined Ultrafiltration/Diafiltration Step Facilitates the Purification of Cyanovirin-N From Transgenic Tobacco Extracts. Front Bioeng Biotechnol 2019; 6:206. [PMID: 30687700 PMCID: PMC6334625 DOI: 10.3389/fbioe.2018.00206] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2018] [Accepted: 12/12/2018] [Indexed: 12/11/2022] Open
Abstract
The production of biopharmaceutical proteins in plants offers many advantages over traditional expression platforms, including improved safety, greater scalability and lower upstream production costs. However, most products are retained within plant cells or the apoplastic space instead of being secreted into a liquid medium, so downstream processing necessarily involves tissue and cell disruption followed by the removal of abundant particles and host cell proteins (HCPs). We investigated whether ultrafiltration/diafiltration (UF/DF) can simplify the purification of the model recombinant protein cyanovirin-N (CVN), an ~ 11 kDa HIV-neutralizing lectin, from tobacco extracts prior to chromatography. We compared different membrane types and process conditions, and found that at pH 8.0 and 50 mS cm-1 an UF step using a 100 kDa regenerated cellulose membrane removed more than 80% of the ~ 0.75 mg mL-1 total soluble protein present in the clarified plant extract. We recovered ~ 70% of the CVN and the product purity increased ~ 3-fold in the permeate. The underlying effects of tobacco HCP retention during the UF/DF step were investigated by measuring the zeta potential and particle size distribution in the 2-10,000 nm range. Combined with a subsequent 10 kDa DF step, this approach simultaneously reduced the process volume, conditioned the process intermediate, and facilitated early, chromatography-free purification. Due to the generic, size-based nature of the method, it is likely to be compatible with most products smaller than ~50 kDa.
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Affiliation(s)
- Patrick Opdensteinen
- Fraunhofer Institute for Molecular Biology and Applied Ecology IME, Aachen, Germany.,Institute for Molecular Biotechnology, RWTH Aachen University, Aachen, Germany
| | - Juliana I Clodt
- Institute of Polymer Research, Helmholtz-Zentrum Geesthacht, Geesthacht, Germany
| | - Catherine R Müschen
- Fraunhofer Institute for Molecular Biology and Applied Ecology IME, Aachen, Germany
| | - Volkan Filiz
- Institute of Polymer Research, Helmholtz-Zentrum Geesthacht, Geesthacht, Germany
| | - Johannes F Buyel
- Fraunhofer Institute for Molecular Biology and Applied Ecology IME, Aachen, Germany.,Institute for Molecular Biotechnology, RWTH Aachen University, Aachen, Germany
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12
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Evaluation on performance of dead-end ultrafiltration membrane in fractionating tilapia by-product protein hydrolysate. Sep Purif Technol 2018. [DOI: 10.1016/j.seppur.2017.11.020] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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13
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Fouling behavior of poly(ether)sulfone ultrafiltration membrane during concentration of whey proteins: Effect of hydrophilic modification using atmospheric pressure argon jet plasma. Colloids Surf B Biointerfaces 2017; 160:510-519. [DOI: 10.1016/j.colsurfb.2017.10.003] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2017] [Revised: 09/14/2017] [Accepted: 10/01/2017] [Indexed: 01/12/2023]
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14
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Premnath S, Agarwal GP. Single stage ultrafiltration for enhanced reverse selectivity in a binary protein system. SEP SCI TECHNOL 2017. [DOI: 10.1080/01496395.2017.1322104] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
Affiliation(s)
- S. Premnath
- Department of Biochemical Engineering & Biotechnology, Indian Institute of Technology Delhi, Hauz Khaz, New Delhi, India
| | - G. P. Agarwal
- Department of Biochemical Engineering & Biotechnology, Indian Institute of Technology Delhi, Hauz Khaz, New Delhi, India
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15
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Ma N, Zhao L, Hu X, Yin Z, Zhang Y, Meng J. Protein Transport Properties of PAN Membranes Grafted with Hyperbranched Polyelectrolytes and Hyperbranched Zwitterions. Ind Eng Chem Res 2017. [DOI: 10.1021/acs.iecr.6b03616] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Na Ma
- State Key Laboratory
of Separation Membranes and Membrane Processes, Tianjin Polytechnic University, Tianjin 300387, China
| | - Lianrui Zhao
- State Key Laboratory
of Separation Membranes and Membrane Processes, Tianjin Polytechnic University, Tianjin 300387, China
| | - Xiaoyu Hu
- State Key Laboratory of Membrane Materials and Membrane Applications,
Tianjin Motimo Membrane Technology Co., Ltd., Tianjin 300042, China
| | - Zhen Yin
- State Key Laboratory
of Separation Membranes and Membrane Processes, Tianjin Polytechnic University, Tianjin 300387, China
| | - Yufeng Zhang
- State Key Laboratory
of Separation Membranes and Membrane Processes, Tianjin Polytechnic University, Tianjin 300387, China
| | - Jianqiang Meng
- State Key Laboratory
of Separation Membranes and Membrane Processes, Tianjin Polytechnic University, Tianjin 300387, China
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16
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Bronze-Uhle ES, Costa BC, Ximenes VF, Lisboa-Filho PN. Synthetic nanoparticles of bovine serum albumin with entrapped salicylic acid. Nanotechnol Sci Appl 2016; 10:11-21. [PMID: 28096662 PMCID: PMC5207451 DOI: 10.2147/nsa.s117018] [Citation(s) in RCA: 85] [Impact Index Per Article: 10.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022] Open
Abstract
Bovine serum albumin (BSA) is highly water soluble and binds drugs or inorganic substances noncovalently for their effective delivery to various affected areas of the body. Due to the well-defined structure of the protein, containing charged amino acids, albumin nanoparticles (NPs) may allow electrostatic adsorption of negatively or positively charged molecules, such that substantial amounts of drug can be incorporated within the particle, due to different albumin-binding sites. During the synthesis procedure, pH changes significantly. This variation modifies the net charge on the surface of the protein, varying the size and behavior of NPs as the drug delivery system. In this study, the synthesis of BSA NPs, by a desolvation process, was studied with salicylic acid (SA) as the active agent. SA and salicylates are components of various plants and have been used for medication with anti-inflammatory, antibacterial, and antifungal properties. However, when administered orally to adults (usual dose provided by the manufacturer), there is 50% decomposition of salicylates. Thus, there has been a search for some time to develop new systems to improve the bioavailability of SA and salicylates in the human body. Taking this into account, during synthesis, the pH was varied (5.4, 7.4, and 9) to evaluate its influence on the size and release of SA of the formed NPs. The samples were analyzed using field-emission scanning electron microscopy, transmission electron microscopy, Fourier transform infrared, zeta potential, and dynamic light scattering. Through fluorescence, it was possible to analyze the release of SA in vitro in phosphate-buffered saline solution. The results of chemical morphology characterization and in vitro release studies indicated the potential use of these NPs as drug carriers in biological systems requiring a fast release of SA.
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Affiliation(s)
- ES Bronze-Uhle
- Department of Physics, São Paulo State University (Unesp), School of Sciences, Bauru, São Paulo, Brazil
| | - BC Costa
- Department of Physics, São Paulo State University (Unesp), School of Sciences, Bauru, São Paulo, Brazil
| | - VF Ximenes
- Department of Chemistry, São Paulo State University (Unesp), School of Sciences, Bauru, São Paulo, Brazil
| | - PN Lisboa-Filho
- Department of Physics, São Paulo State University (Unesp), School of Sciences, Bauru, São Paulo, Brazil
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17
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Ding Y, Maruf S, Aghajani M, Greenberg AR. Surface patterning of polymeric membranes and its effect on antifouling characteristics. SEP SCI TECHNOL 2016. [DOI: 10.1080/01496395.2016.1201115] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Affiliation(s)
- Yifu Ding
- Membrane Science, Engineering and Technology Center, Department of Mechanical Engineering, University of Colorado Boulder, Boulder, Colorado, USA
- Materials Science and Engineering Program, University of Colorado, Boulder, Colorado, USA
| | - Sajjad Maruf
- Membrane Science, Engineering and Technology Center, Department of Mechanical Engineering, University of Colorado Boulder, Boulder, Colorado, USA
| | - Masoud Aghajani
- Membrane Science, Engineering and Technology Center, Department of Mechanical Engineering, University of Colorado Boulder, Boulder, Colorado, USA
| | - Alan R. Greenberg
- Membrane Science, Engineering and Technology Center, Department of Mechanical Engineering, University of Colorado Boulder, Boulder, Colorado, USA
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18
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Arrutia F, Rubio R, Riera FA. Production and membrane fractionation of bioactive peptides from a whey protein concentrate. J FOOD ENG 2016. [DOI: 10.1016/j.jfoodeng.2016.03.010] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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19
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Mažeika D, Rušinas L, Stupak R, Liesienė J, Valančius Z. Optimization of Crossflow Microfiltration of Disrupted Arthrobacter luteusCells. SEP SCI TECHNOL 2015. [DOI: 10.1080/01496395.2014.990464] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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20
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Characteristic properties of crude pineapple waste extract for bromelain purification by membrane processing. Journal of Food Science and Technology 2015. [DOI: 10.1007/s13197-015-1812-5] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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21
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Stroeve P, Rahman M, Naidu LD, Chu G, Mahmoudi M, Ramirez P, Mafe S. Protein diffusion through charged nanopores with different radii at low ionic strength. Phys Chem Chem Phys 2014; 16:21570-6. [PMID: 25189648 DOI: 10.1039/c4cp03198a] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The diffusion of two similar molecular weight proteins, bovine serum albumin (BSA) and bovine haemoglobin (BHb), through nanoporous charged membranes with a wide range of pore radii is studied at low ionic strength. The effects of the solution pH and the membrane pore diameter on the pore permeability allow quantifying the electrostatic interaction between the charged pore and the protein. Because of the large screening Debye length, both surface and bulk diffusion occur simultaneously. By increasing the pore diameter, the permeability tends to the bulk self-diffusion coefficient for each protein. By decreasing the pore diameter, the charges on the pore surface electrostatically hinder the transport even at the isoelectric point of the protein. Surprisingly, even at pore sizes 100 times larger than the protein, the electrostatic hindrance still plays a major role in the transport. The experimental data are qualitatively explained using a two-region model for the membrane pore and approximated equations for the pH dependence of the protein and pore charges. The experimental and theoretical results should be useful for designing protein separation processes based on nanoporous charged membranes.
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Affiliation(s)
- Pieter Stroeve
- Department of Chemical Engineering and Materials Science, University of California Davis, Davis, CA 95616, USA.
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22
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Maruf SH, Rickman M, Wang L, Mersch IV J, Greenberg AR, Pellegrino J, Ding Y. Influence of sub-micron surface patterns on the deposition of model proteins during active filtration. J Memb Sci 2013. [DOI: 10.1016/j.memsci.2013.05.060] [Citation(s) in RCA: 51] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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23
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Holder A, Birke A, Eisele T, Klaiber I, Fischer L, Hinrichs J. Selective isolation of angiotensin-I-converting enzyme-inhibitory peptides from micellar casein and β-casein hydrolysates via ultrafiltration. Int Dairy J 2013. [DOI: 10.1016/j.idairyj.2012.11.003] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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24
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Fernández A, Riera FA. Membrane Fractionation of a β-Lactoglobulin Tryptic Digest: Effect of the Hydrolysate Concentration. Ind Eng Chem Res 2012. [DOI: 10.1021/ie302376g] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Ayoa Fernández
- Department
of Chemical Engineering and Environmental Technology, University of Oviedo, C/Julián Clavería
8, 33006 Oviedo, Spain
| | - Francisco A. Riera
- Department
of Chemical Engineering and Environmental Technology, University of Oviedo, C/Julián Clavería
8, 33006 Oviedo, Spain
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25
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Preparation and characterization of polyacrylonitrile membranes modified with polyelectrolyte deposition for separating similar sized proteins. J Memb Sci 2012. [DOI: 10.1016/j.memsci.2012.05.028] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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26
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Peeva PD, Knoche T, Pieper T, Ulbricht M. Performance of Thin-Layer Hydrogel Polyethersulfone Composite Membranes during Dead-End Ultrafiltration of Various Protein Solutions. Ind Eng Chem Res 2012. [DOI: 10.1021/ie202893e] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Polina D. Peeva
- Lehrstuhl
für Technische Chemie II, Universität Duisburg-Essen, Universitätsstr.
7, 45117 Germany
| | - Thomas Knoche
- Lehrstuhl
für Technische Chemie II, Universität Duisburg-Essen, Universitätsstr.
7, 45117 Germany
| | - Thorsten Pieper
- Lehrstuhl
für Technische Chemie II, Universität Duisburg-Essen, Universitätsstr.
7, 45117 Germany
| | - Mathias Ulbricht
- Lehrstuhl
für Technische Chemie II, Universität Duisburg-Essen, Universitätsstr.
7, 45117 Germany
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27
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Ramesh M, Lin HC, Chu CW. Stable organic thin film transducers for biochemical and label-free sensing under physiological conditions. ACTA ACUST UNITED AC 2012. [DOI: 10.1039/c2jm32561f] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
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28
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Khan HU, Jang J, Kim JJ, Knoll W. In Situ Antibody Detection and Charge Discrimination Using Aqueous Stable Pentacene Transistor Biosensors. J Am Chem Soc 2011; 133:2170-6. [DOI: 10.1021/ja107088m] [Citation(s) in RCA: 72] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Affiliation(s)
- Hadayat Ullah Khan
- Material Science Group, Max-Planck Institute for Polymer Research, Ackermannweg-10, D-55128 Mainz, Germany
| | - Junhyuk Jang
- OLED Center, Department of Materials Science and Engineering, Seoul National University, Seoul 151-744, Korea
| | - Jang-Joo Kim
- OLED Center, Department of Materials Science and Engineering, Seoul National University, Seoul 151-744, Korea
| | - Wolfgang Knoll
- Material Science Group, Max-Planck Institute for Polymer Research, Ackermannweg-10, D-55128 Mainz, Germany
- AIT Austrian Institute of Technology GmbH, Donau-City-Strasse 1, 1220 Vienna, Austria
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29
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Electrostatic contributions to permeate flux behavior in single bovine serum albumin ultrafiltration. J Memb Sci 2011. [DOI: 10.1016/j.memsci.2010.10.002] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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30
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Salgın S. Effects of ionic environment on the interfacial interactions between α-amylase and polyether sulphone membranes. SURF INTERFACE ANAL 2010. [DOI: 10.1002/sia.3716] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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31
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Rohani MM, Zydney AL. Role of electrostatic interactions during protein ultrafiltration. Adv Colloid Interface Sci 2010; 160:40-8. [PMID: 20688310 DOI: 10.1016/j.cis.2010.07.002] [Citation(s) in RCA: 54] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2010] [Revised: 07/06/2010] [Accepted: 07/07/2010] [Indexed: 10/19/2022]
Abstract
A number of studies over the last decade have clearly demonstrated the importance of electrostatic interactions on the transport of charged proteins through semipermeable ultrafiltration membranes. This paper provides a review of recent developments in this field with a focus on the role of both protein and membrane charge on the rate of protein transport. Experimental results are analyzed using available theoretical models developed from the solution of the Poisson-Boltzmann equation for the partitioning of a charged particle into a charged pore. The potential of exploiting these electrostatic interactions for selective protein separations and for the development of ultrafiltration membranes with enhanced performance characteristics is also examined.
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32
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Peeva PD, Pieper T, Ulbricht M. Tuning the ultrafiltration properties of anti-fouling thin-layer hydrogel polyethersulfone composite membranes by suited crosslinker monomers and photo-grafting conditions. J Memb Sci 2010. [DOI: 10.1016/j.memsci.2010.07.016] [Citation(s) in RCA: 54] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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33
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Liu HF, Ma J, Winter C, Bayer R. Recovery and purification process development for monoclonal antibody production. MAbs 2010; 2:480-99. [PMID: 20647768 DOI: 10.4161/mabs.2.5.12645] [Citation(s) in RCA: 323] [Impact Index Per Article: 23.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022] Open
Abstract
Hundreds of therapeutic monoclonal antibodies (mAbs) are currently in development, and many companies have multiple antibodies in their pipelines. Current methodology used in recovery processes for these molecules are reviewed here. Basic unit operations such as harvest, Protein A affinity chromatography, and additional polishing steps are surveyed. Alternative processes such as flocculation, precipitation, and membrane chromatography are discussed. We also cover platform approaches to purification methods development, use of high throughput screening methods, and offer a view on future developments in purification methodology as applied to mAbs.
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Affiliation(s)
- Hui F Liu
- Oceanside Process Research & Development, Genentech, Inc., Oceanside, CA, USA.
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34
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Aimar P, Meireles M. Calibration of ultrafiltration membranes against size exclusion chromatography columns. J Memb Sci 2010. [DOI: 10.1016/j.memsci.2009.09.018] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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35
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Ager K, Latulippe DR, Zydney AL. Plasmid DNA transmission through charged ultrafiltration membranes. J Memb Sci 2009. [DOI: 10.1016/j.memsci.2009.07.047] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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36
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Rohani MM, Zydney AL. Effect of surface charge distribution on protein transport through semipermeable ultrafiltration membranes. J Memb Sci 2009. [DOI: 10.1016/j.memsci.2009.04.007] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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37
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Bhushan S, Etzel M. Charged Ultrafiltration Membranes Increase the Selectivity of Whey Protein Separations. J Food Sci 2009; 74:E131-9. [DOI: 10.1111/j.1750-3841.2009.01095.x] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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38
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Protein–membrane interactions in forced-flow electrophoresis of protein solutions: Effect of initial pH and initial ionic strength. Sep Purif Technol 2009. [DOI: 10.1016/j.seppur.2008.12.027] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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39
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Yeu S, Lunn JD, Rangel HM, Shantz DF. The effect of surface modifications on protein microfiltration properties of Anopore™ membranes. J Memb Sci 2009. [DOI: 10.1016/j.memsci.2008.11.017] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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40
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Saxena A, Tripathi BP, Kumar M, Shahi VK. Membrane-based techniques for the separation and purification of proteins: an overview. Adv Colloid Interface Sci 2009; 145:1-22. [PMID: 18774120 DOI: 10.1016/j.cis.2008.07.004] [Citation(s) in RCA: 247] [Impact Index Per Article: 16.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/01/2008] [Revised: 04/24/2008] [Accepted: 07/25/2008] [Indexed: 10/21/2022]
Abstract
Membrane processes are increasingly reported for various applications in both upstream and downstream technology, such as microfiltration, ultrafiltration, emerging processes as membrane chromatography, high performance tangential flow filtration and electrophoretic membrane contactor. Membrane-based processes are playing critical role in the field of separation/purification of biotechnological products. Membranes became an integral part of biotechnology and improvements in membrane technology are now focused on high resolution of bioproduct. In bioseparation, applications of membrane technologies include protein production/purification, protein-virus separation. This manuscript provides an overview of recent developments and published literature in membrane technology, focusing on special characteristics of the membranes and membrane-based processes that are now used for the production and purification of proteins.
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41
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Latulippe DR, Molek JR, Zydney AL. Importance of Biopolymer Molecular Flexibility in Ultrafiltration Processes. Ind Eng Chem Res 2008. [DOI: 10.1021/ie8005337] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- David R. Latulippe
- Department of Chemical Engineering, The Pennsylvania State University, University Park, Pennsylvania 16802
| | - Jessica R. Molek
- Department of Chemical Engineering, The Pennsylvania State University, University Park, Pennsylvania 16802
| | - Andrew L. Zydney
- Department of Chemical Engineering, The Pennsylvania State University, University Park, Pennsylvania 16802
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42
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Becht N, Malik D, Tarleton E. Evaluation and comparison of protein ultrafiltration test results: Dead-end stirred cell compared with a cross-flow system. Sep Purif Technol 2008. [DOI: 10.1016/j.seppur.2008.01.030] [Citation(s) in RCA: 55] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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43
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Bakhshayeshi M, Zydney AL. Effect of solution pH on protein transmission and membrane capacity during virus filtration. Biotechnol Bioeng 2008; 100:108-17. [PMID: 18080342 DOI: 10.1002/bit.21735] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Abstract
Although virus filtration is now an integral part of the overall viral clearance strategy for the purification of many commercial therapeutic proteins, there is currently little understanding of the factors controlling the performance of the virus filters. The objective of this study was to examine the effects of solution pH on protein transmission and capacity during virus filtration. Data were obtained using bovine serum albumin as a model protein with Viresolve 180 membranes oriented with both the skin-side up and skin-side down. Membranes were also characterized using dextran sieving measurements both before and after protein filtration. Membrane capacity and protein yield were minimal at the protein isoelectric point, which was due to the greater degree of concentration polarization associated with the smaller protein diffusion coefficient at this pH. In contrast, the actual protein sieving coefficient was maximum at the protein isoelectric point due to the absence of any strong electrostatic exclusion under these conditions. The yield and capacity were both significantly greater when the membrane was oriented with the skin-side down. These results provide important insights into the effects of solution conditions on the performance of virus filtration membranes for protein purification.
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Affiliation(s)
- Meisam Bakhshayeshi
- Department of Chemical Engineering, The Pennsylvania State University, University Park, Pennsylvania 16802, USA
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44
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Mehta A, Zydney AL. Effect of spacer arm length on the performance of charge-modified ultrafiltration membranes. J Memb Sci 2008. [DOI: 10.1016/j.memsci.2008.01.014] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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45
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Lebreton B, Brown A, van Reis R. Application of high-performance tangential flow filtration (HPTFF) to the purification of a human pharmaceutical antibody fragment expressed inEscherichia coli. Biotechnol Bioeng 2008; 100:964-74. [DOI: 10.1002/bit.21842] [Citation(s) in RCA: 43] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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46
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Aravind UK, Mathew J, Aravindakumar C. Transport studies of BSA, lysozyme and ovalbumin through chitosan/polystyrene sulfonate multilayer membrane. J Memb Sci 2007. [DOI: 10.1016/j.memsci.2007.04.036] [Citation(s) in RCA: 48] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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47
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Patil S, Sandberg A, Heckert E, Self W, Seal S. Protein adsorption and cellular uptake of cerium oxide nanoparticles as a function of zeta potential. Biomaterials 2007; 28:4600-7. [PMID: 17675227 PMCID: PMC2259388 DOI: 10.1016/j.biomaterials.2007.07.029] [Citation(s) in RCA: 655] [Impact Index Per Article: 38.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2007] [Accepted: 07/15/2007] [Indexed: 01/08/2023]
Abstract
The surface chemistry of biomaterials can have a significant impact on their performance in biological applications. Our recent work suggests that cerium oxide nanoparticles are potent antioxidants in cell culture models and we have evaluated several therapeutic applications of these nanoparticles in different biological systems. Knowledge of protein adsorption and cellular uptake will be very useful in improving the beneficial effects of cerium oxide nanoparticles in biology. In the present study, we determined the effect of zeta potential of cerium oxide nanoparticles on adsorption of bovine serum albumin (BSA) and cellular uptake in adenocarcinoma lung cells (A549). The zeta potential of the nanoparticles was varied by dispersing them in various acidic and basic pH solutions. UV-visible spectroscopy and inductively coupled plasma mass spectrometry (ICP-MS) were used for the protein adsorption and cellular uptake studies, respectively. Nanoceria samples having positive zeta potential were found to adsorb more BSA while the samples with negative zeta potential showed little or no protein adsorption. The cellular uptake studies showed preferential uptake for the negatively charged nanoparticles. These results demonstrate that electrostatic interactions can play an important factor in protein adsorption and cellular uptake of nanoparticles.
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Affiliation(s)
- Swanand Patil
- Advanced Materials Processing and Analysis Center, Nanoscience Technology Center and Department of Mechanical, Materials and Aerospace Engineering, University of Central Florida, Orlando, FL 32816, USA
| | - Amanda Sandberg
- Department of Chemical Engineering, University of Florida, Gainesville, FL 32611, USA
| | - Eric Heckert
- Department of Molecular Biology and Microbiology, University of Central Florida, Orlando, FL 32816, USA
| | - William Self
- Department of Molecular Biology and Microbiology, University of Central Florida, Orlando, FL 32816, USA
| | - Sudipta Seal
- Advanced Materials Processing and Analysis Center, Nanoscience Technology Center and Department of Mechanical, Materials and Aerospace Engineering, University of Central Florida, Orlando, FL 32816, USA
- Corresponding author. Tel.: +1 407 882 1119; fax: +1 407 823 0208. E-mail address: (S. Seal)
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48
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pH controlled selective transport of proteins through charged ultrafilter membranes under coupled driving forces: An efficient process for protein separation. J Memb Sci 2007. [DOI: 10.1016/j.memsci.2007.04.043] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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49
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Gitlin I, Carbeck JD, Whitesides GM. Why are proteins charged? Networks of charge-charge interactions in proteins measured by charge ladders and capillary electrophoresis. Angew Chem Int Ed Engl 2007; 45:3022-60. [PMID: 16619322 DOI: 10.1002/anie.200502530] [Citation(s) in RCA: 196] [Impact Index Per Article: 11.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Abstract
Almost all proteins contain charged amino acids. While the function in catalysis or binding of individual charges in the active site can often be identified, it is less clear how to assign function to charges beyond this region. Are they necessary for solubility? For reasons other than solubility? Can manipulating these charges change the properties of proteins? A combination of capillary electrophoresis (CE) and protein charge ladders makes it possible to study the roles of charged residues on the surface of proteins outside the active site. This method involves chemical modification of those residues to generate a large number of derivatives of the protein that differ in charge. CE separates those derivatives into groups with the same number of modified charged groups. By studying the influence of charge on the properties of proteins using charge ladders, it is possible to estimate the net charge and hydrodynamic radius and to infer the role of charged residues in ligand binding and protein folding.
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Affiliation(s)
- Irina Gitlin
- Department of Chemistry and Chemical Biology, Harvard University, 12 Oxford St., Cambridge, MA 02138, USA
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50
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Salgın S. Effects of Ionic Environments on Bovine Serum Albumin Fouling in a Cross-Flow Ultrafiltration System. Chem Eng Technol 2007. [DOI: 10.1002/ceat.200600342] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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