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Li F, Tu Y, Hu J, Zou H, Liu G, Lin S, Yang G, Hu S, Miao L, Mo Y. Fabrication of fluorinated raspberry particles and their use as building blocks for the construction of superhydrophobic films to mimic the wettabilities from lotus leaves to rose petals. Polym Chem 2015. [DOI: 10.1039/c5py00903k] [Citation(s) in RCA: 37] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
Preparation of raspberry-like particles (RPs) and the subsequent fabrication of superhydrophobic films with tunable adhesion derived from fluorinated RPs.
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Jespersen GR, Nielsen AL, Matthiesen F, Andersen HS, Kirsebom H. Dual application of cryogel as solid support in peptide synthesis and subsequent protein-capture. J Appl Polym Sci 2013. [DOI: 10.1002/app.39727] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
| | - Anders Laerke Nielsen
- Novo Nordisk A/S; Department of Biopharm Chemistry; Novo Nordisk Park; DK-2760; Måløv; Denmark
| | - Finn Matthiesen
- Novo Nordisk A/S; Department of Protein Purification Technology; Novo Nordisk Park; DK-2760; Måløv; Denmark
| | - Henrik Sune Andersen
- Novo Nordisk A/S; Department of Biopharm Chemistry; Novo Nordisk Park; DK-2760; Måløv; Denmark
| | - Harald Kirsebom
- Department of Biotechnology; Lund University; 221 00; Lund; Sweden
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Pecher HS, Zimathies A, Weller MG. Oligoepoxide-Based Monoliths: Synthesis and Application as Affinity Capillary Column for Enrichment of Immunoglobulin G. MACROMOL CHEM PHYS 2012. [DOI: 10.1002/macp.201200206] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
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4
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Rober M, Walter J, Vlakh E, Stahl F, Kasper C, Tennikova T. New 3-D microarray platform based on macroporous polymer monoliths. Anal Chim Acta 2009; 644:95-103. [DOI: 10.1016/j.aca.2009.04.015] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2008] [Revised: 04/03/2009] [Accepted: 04/06/2009] [Indexed: 10/20/2022]
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5
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Potter OG, Hilder EF. Porous polymer monoliths for extraction: Diverse applications and platforms. J Sep Sci 2008; 31:1881-906. [DOI: 10.1002/jssc.200800116] [Citation(s) in RCA: 82] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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6
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Jungbauer A, Hahn R. Polymethacrylate monoliths for preparative and industrial separation of biomolecular assemblies. J Chromatogr A 2008; 1184:62-79. [DOI: 10.1016/j.chroma.2007.12.087] [Citation(s) in RCA: 182] [Impact Index Per Article: 11.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/16/2007] [Revised: 12/04/2007] [Accepted: 12/19/2007] [Indexed: 11/28/2022]
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7
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Slabospitskaya MY, Vlakh EG, Saprykina NN, Tennikova TB. Synthesis and investigation of a new macroporous monolithic material based on an N-hydroxyphthalimide ester of acrylic acid- co-glycidyl methacrylate- co-ethylene dimethacrylate terpolymer. J Appl Polym Sci 2008. [DOI: 10.1002/app.29130] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
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9
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Josic D, Clifton JG. Use of monolithic supports in proteomics technology. J Chromatogr A 2007; 1144:2-13. [PMID: 17174320 DOI: 10.1016/j.chroma.2006.11.082] [Citation(s) in RCA: 74] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2006] [Revised: 11/26/2006] [Accepted: 11/28/2006] [Indexed: 11/26/2022]
Abstract
An overview on the utilization of monoliths in proteomics technology will be given. Both silica- and polymer-based monoliths have broad use for microseparation of tryptic peptides in reversed-phase (RP) mode before identification by mass spectrometry (MS) or by MS/MS. For two-dimensional (2D) LC separation of peptides before MS or MS/MS analysis, a combination of ion-exchange, usually cation-exchange (CEX) chromatography with RP chromatography on monolithic supports can be employed. Immobilized metal ion affinity chromatography monoliths with immobilized Fe3+-ions are used for the isolation of phosphopeptides. Monoliths with immobilized affinity ligands are usually applied to the rapid separation of proteins and peptides. Miniaturized reactors with immobilized proteolytic enzymes are utilized for rapid on- or offline digestion of isolated proteins or protein mixtures prior to identification by LC-MS/MS. Monoliths also have broad potential for application in sample preparation, prior to further proteomic analyses. Monolithic supports with large pore sizes can be exploited for the isolation of nanoparticles, such as cells, organelles, viruses and protein aggregates. The potential for further adoption of monolithic supports in protein separation and enrichment of low abundance proteins prior to proteolytic digestion and final LC-MS/MS protein identification will be discussed.
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Affiliation(s)
- Djuro Josic
- Proteomics Core, COBRE Center for Cancer Research Development, Rhode Island Hospital, CORO West, One Hoppin St., Providence, RI 02903, USA.
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Hérault D, Saluzzo C, Lemaire M. Preparation of monodisperse enantiomerically pure glycidyl methacrylate–ethylene glycol dimethacrylate copolymers in dispersion copolymerization: Functionalization. REACT FUNCT POLYM 2006. [DOI: 10.1016/j.reactfunctpolym.2005.10.010] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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11
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Wei Y, Huang X, Liu R, Shen Y, Geng X. Preparation of a monolithic column for weak cation exchange chromatography and its application in the separation of biopolymers. J Sep Sci 2006; 29:5-13. [PMID: 16485704 DOI: 10.1002/jssc.200500210] [Citation(s) in RCA: 27] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Abstract
A procedure for the preparation of a monolithic column for weak cation exchange chromatography was presented. The structure of the monolithic column was evaluated by mercury intrusion. The hydrodynamic and chromatographic properties of the monolithic column--such as back pressures at different flow rates, effects of pH on protein retention, dynamic loading capacity, recovery, and stability--were determined under conditions typical for ion-exchange chromatography. The prepared monolithic column might be used in a relatively broad pH range from 4.0 to 12.0 and exhibited an excellent separation to five proteins at the flow rates of both 1.0 and 8.0 mL/min, respectively. In addition, the prepared column was first used in the purification and simultaneous renaturation of recombinant human interferon gamma (rhIFN-gamma) in the extract solution with 7.0 mol/L guanidine hydrochloride. The purity and specific bioactivity of the purified rhIFN-gamma in only one chromatographic step were obtained to be 93% and 7.8 x 10(7) IU/mg, respectively.
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Affiliation(s)
- Yinmao Wei
- Institute of Modern Separation Science, Northwest University, Xi'an, China.
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12
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Jungbauer A. Protein bioengineering. Biotechnol J 2006; 1:26-7. [PMID: 16892219 DOI: 10.1002/biot.200690007] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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13
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Abstract
Bioseparation processes are dominated by chromatographic steps. Even primary recovery is sometimes accomplished by chromatographic separation, using a fluidized bed instead of a fixed bed. In this review, the action principles, features of chromatography media regarding physical and chemical properties will be described. An attempt will be made to establish categories of different media. Characteristics for bioseparation are the large pores and particle sizes. To achieve sufficient capacity for ultralarge molecules, such as plasmids or nanoparticles, such as viruses monoliths are the media of choice. In these media, the mass transport is accomplished by convection, and thus, the low diffusivity can be overcome. Common to all modern chromatography media is the fast operation. There are examples where a residence time of less then 3 min, is sufficient to reach the full potential of the adsorbent.
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Affiliation(s)
- Alois Jungbauer
- Department of Biotechnology, University of Natural Resources and Applied Life Science, A-1190 Vienna, Austria.
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Wang G, Carbonell RG. Characterization of a peptide affinity support that binds selectively to staphylococcal enterotoxin B. J Chromatogr A 2005; 1078:98-112. [PMID: 16007987 DOI: 10.1016/j.chroma.2005.05.010] [Citation(s) in RCA: 28] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
Abstract
The influences of mass transfer and adsorption-desorption kinetics on the binding of staphylococcal enterotoxin B (SEB) to an affinity resin with the peptide ligand, Tyr-Tyr-Trp-Leu-His-His (YYWLHH) have been studied. The bed and particle porosities, the axial dispersion coefficient and the pore diffusivity were measured using pulse experiments under unretained conditions. Adsorption isotherms for SEB on YYWLHH resins with peptide densities in the range from 6 to 220 micromol/g were measured and fitted to a bi-Langmuir equation. At peptide densities below 9 micromol/g and above 50 micromol/g, dissociation constants were lower (2 x 10(-3) to 7 x 10(-3) mol/m3), and binding capacities were larger (43-47 mg SEB/g). In the range from 9 to 50 micromol/g dissociation constants were larger (13 x 10(-3) to 24 x 10(-3) mol/m3) and capacities were lower (33-37 mg SEB/g). These observations are consistent with a transition from single point attachment of the protein to the ligand at low peptide densities to multipoint attachment at high peptide densities. The general rate (GR) model of chromatography was used to fit experimental breakthrough curves under retained conditions to determine the intrinsic rate constants for adsorption, which varied from 0.13 to 0.50 m3 mol(-1) s(-1), and exhibited no clear trend with increasing peptide density. An analysis of the number of transfer units for the various mass transfer steps in the column indicated that film mass transfer, pore diffusion (POR) and the kinetics of adsorption can all play an important role in the overall rate of adsorption, with the intrinsic adsorption step apparently being the rate determining step at peptide densities below 50 micromol/g.
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Affiliation(s)
- Guangquan Wang
- Department of Chemical and Biomolecular Engineering, North Carolina State University, 1017 Main Campus Drive, Centennial Campus, Partner's Building 1, Suite 3200, Box 7006, Raleigh, NC 27695-7006, USA
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Podgornik A, Strancar A. Convective Interaction Media (CIM)--short layer monolithic chromatographic stationary phases. BIOTECHNOLOGY ANNUAL REVIEW 2005; 11:281-333. [PMID: 16216781 DOI: 10.1016/s1387-2656(05)11009-6] [Citation(s) in RCA: 52] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
Modern downstream processing requires fast and highly effective methods to obtain large quantities of highly pure substances. Commonly applied method for this purpose is chromatography. However, its main drawback is its throughput since purification, especially of large molecules, requires long process time. To overcome this problem several new stationary phases were introduced, among which short layer monoliths show superior properties for many applications. The purpose of this review is to give an overview about short methacrylate monolithic columns commercialised under the trademark Convective Interaction Media (CIM). Their unique properties are described from different perspectives, explaining reasons for their application on various areas. Approaches to prepare large volume methacrylate monolithic column are discussed and optimal solutions are given. Different examples of CIM monolithic column implementation are summarised in the last part of the article to give the reader an idea about their advantages.
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Affiliation(s)
- Ales Podgornik
- BIA Separations d.o.o., Teslova 30, SI-1000 Ljubljana, Slovenia.
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Tozzi C, Anfossi L, Giraudi G. Affinity chromatography techniques based on the immobilisation of peptides exhibiting specific binding activity. J Chromatogr B Analyt Technol Biomed Life Sci 2004; 797:289-304. [PMID: 14630156 DOI: 10.1016/s1570-0232(03)00481-1] [Citation(s) in RCA: 34] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
Abstract
Affinity chromatography is one of the powerful techniques in selective purification and isolation of a great number of compounds. New challenges in scientific research, such as high-throughput systems, isolation procedures that allow to obtain a single substance from a complex matrix in high degree of purity, low costs and wide availability, have led to the discovery of new tailor-made synthetic recognition systems. In this review the design, synthesis, purification and characterisation of peptides with recognition properties are discussed. Applications of peptide ligands are described and analytical tools mentioned.
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Affiliation(s)
- Cinzia Tozzi
- Department of Analytical Chemistry, University of Turin, Via P. Giuria 5, 10125 Turin, Italy.
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Jungbauer A, Hahn R. Monoliths for fast bioseparation and bioconversion and their applications in biotechnology. J Sep Sci 2004; 27:767-78. [PMID: 15354554 DOI: 10.1002/jssc.200401812] [Citation(s) in RCA: 150] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Abstract
Monoliths have consolidated their position in bioseparation. More than 200 different applications have been reported in the past two decades and their advantages compared to conventional chromatography demonstrated. These include the high mass transfer efficiency due to the convective flow enabled by the macroporous character of the matrix. Recently plasmid DNA and viruses were separated with high efficiency and cryogels and monolithic superporous agarose were developed for capture of proteins from crude homogenates and separation of microorganisms or lymphocytes. Currently four companies manufacture monoliths mainly for analytical applications although monoliths with a volume of 0.8 liter are commercially available and 8 L are available as prototypes. A book entitled "Monolithic materials: preparation, properties and applications" was published in 2003 and became standard reference of the status of this area. This review focuses on the progress in monoliths that goes beyond the scope of this reference book. Less progress has been made in the field of bioconversions in spite of the fact that monolithic supports exhibit better performance than beads in enzymatic processing of macromolecules. It appears that the scientific community has not yet realized that supports for these applications are readily available. In addition, monoliths will further substantially advance bioseparations of both small and large molecules in the future.
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Affiliation(s)
- Alois Jungbauer
- Department of Biotechnology, University of Natural Resources and Applied Life Sciences, Vienna, Austria.
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Krajnc P, ?tefanec D, Brown JF, Cameron NR. Aryl acrylate based high-internal-phase emulsions as precursors for reactive monolithic polymer supports. ACTA ACUST UNITED AC 2004. [DOI: 10.1002/pola.20501] [Citation(s) in RCA: 52] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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Vlakh E, Novikov A, Vlasov G, Tennikova T. Solid phase peptide synthesis on epoxy-bearing methacrylate monoliths. J Pept Sci 2004; 10:719-30. [PMID: 15635624 DOI: 10.1002/psc.584] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Abstract
Monoliths based on a copolymer of glycidyl methacrylate (GMA) and ethylene dimethacrylate (EDMA) can be used directly as sorbents for affinity chromatography after solid phase peptide synthesis. The quality of the synthesized products, the amount of grown peptides on a support and the reproducibility of the process must be considered. A determination of the quantity of the introducing beta-Ala (and, consequently, the total amount of synthesized peptide) was carried out. Three peptides complementary to recombinant tissue plasminogen activator (t-PA) have been synthesized using Fmoc-chemistry on GMA-EDMA disks. The peptidyl ligands were analysed by amino acid analysis, ES-MS and HPLC methods. The affinity binding parameters were obtained from frontal elution data. The results were compared with those established for GMA-EDMA affinity sorbents formed by the immobilization of the same but separately synthesized and purified ligands. The immobilization on GMA-EDMA disks was realized using a one-step reaction between the amino groups of the synthetic ligand and the original epoxy groups of monolithic material. The affinity constants found for two kinds of sorbent did not vary significantly. Finally, the directly obtained affinity sorbents were tested for t-PA separation from a cellular supernatant.
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Affiliation(s)
- E Vlakh
- Institute of Macromolecular Compounds, Russian Academy of Sciences
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Hahn R, Berger E, Pflegerl K, Jungbauer A. Directed immobilization of peptide ligands to accessible pore sites by conjugation with a placeholder molecule. Anal Chem 2003; 75:543-8. [PMID: 12585482 DOI: 10.1021/ac025846v] [Citation(s) in RCA: 30] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
When small ligands are immobilized onto a porous chromatography medium, only a limited number of binding sites contributes to the interaction with the target molecule. The main part of the ligand molecules is distributed on sites that are not accessible for the target protein due to steric hindrance. To direct the ligand into a well-accessible position, the ligand was conjugated to a large molecule that acted as a placeholder during the immobilization step. Then the placeholder molecule was cleaved off and washed out. Two linear peptides with affinity for lysozyme and human blood coagulation factor VIII, respectively, were studied as model systems. The protected peptide ligand was covalently linked to a 20-kDa poly(ethylene glycol) molecule containing an acid-labile linker. After selective deprotection of the peptide and purification, immobilization of this conjugate on a preactivated chromatography matrix was performed alternatively through the free N-terminus, the epsilon-amino group of lysine, or the sulfohydryl group of cysteine. After the immobilization reaction, the spacer molecule and remaining protecting groups were cleaved off and the gels were tested by affinity chromatography. This novel immobilization technique substantially increased the binding capacity and the ligand utilization for the target protein, and site-specific immobilization could be demonstrated.
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Affiliation(s)
- Rainer Hahn
- Institute for Applied Microbiology, University of Agricultural Sciences, A-1190 Vienna, Austria
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