WO2004009223A1 - Membran, filtrationsmodul und verfahren zur abtrennung von biomolekülen aus einer flüssigkeit - Google Patents
Membran, filtrationsmodul und verfahren zur abtrennung von biomolekülen aus einer flüssigkeit Download PDFInfo
- Publication number
- WO2004009223A1 WO2004009223A1 PCT/EP2003/006564 EP0306564W WO2004009223A1 WO 2004009223 A1 WO2004009223 A1 WO 2004009223A1 EP 0306564 W EP0306564 W EP 0306564W WO 2004009223 A1 WO2004009223 A1 WO 2004009223A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- membrane
- membranes
- membrane body
- biomolecules
- affinity ligand
- Prior art date
Links
- 239000012528 membrane Substances 0.000 title claims abstract description 98
- 239000007788 liquid Substances 0.000 title claims abstract description 16
- 238000001914 filtration Methods 0.000 title claims abstract description 12
- 238000000034 method Methods 0.000 title claims abstract description 11
- 238000000926 separation method Methods 0.000 title abstract description 11
- 239000003446 ligand Substances 0.000 claims abstract description 32
- 230000000694 effects Effects 0.000 claims abstract description 9
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 9
- 239000012982 microporous membrane Substances 0.000 claims abstract description 8
- 238000001035 drying Methods 0.000 claims abstract description 7
- 230000008878 coupling Effects 0.000 claims abstract description 4
- 238000010168 coupling process Methods 0.000 claims abstract description 4
- 238000005859 coupling reaction Methods 0.000 claims abstract description 4
- PEDCQBHIVMGVHV-UHFFFAOYSA-N Glycerine Chemical compound OCC(O)CO PEDCQBHIVMGVHV-UHFFFAOYSA-N 0.000 claims description 15
- 239000011148 porous material Substances 0.000 claims description 7
- 235000011187 glycerol Nutrition 0.000 claims description 6
- 238000011010 flushing procedure Methods 0.000 claims description 4
- 238000005470 impregnation Methods 0.000 claims description 3
- 239000002904 solvent Substances 0.000 claims description 3
- 238000012432 intermediate storage Methods 0.000 claims description 2
- 230000000975 bioactive effect Effects 0.000 claims 1
- 230000003993 interaction Effects 0.000 claims 1
- 230000000717 retained effect Effects 0.000 claims 1
- 239000012530 fluid Substances 0.000 abstract 2
- 230000014759 maintenance of location Effects 0.000 abstract 2
- 239000000126 substance Substances 0.000 description 8
- 238000003860 storage Methods 0.000 description 7
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 description 6
- 239000002609 medium Substances 0.000 description 6
- 108090000623 proteins and genes Proteins 0.000 description 6
- 102000004169 proteins and genes Human genes 0.000 description 6
- DHMQDGOQFOQNFH-UHFFFAOYSA-N Glycine Chemical compound NCC(O)=O DHMQDGOQFOQNFH-UHFFFAOYSA-N 0.000 description 4
- LWIHDJKSTIGBAC-UHFFFAOYSA-K tripotassium phosphate Chemical compound [K+].[K+].[K+].[O-]P([O-])([O-])=O LWIHDJKSTIGBAC-UHFFFAOYSA-K 0.000 description 4
- 239000000020 Nitrocellulose Substances 0.000 description 3
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 3
- FJWGYAHXMCUOOM-QHOUIDNNSA-N [(2s,3r,4s,5r,6r)-2-[(2r,3r,4s,5r,6s)-4,5-dinitrooxy-2-(nitrooxymethyl)-6-[(2r,3r,4s,5r,6s)-4,5,6-trinitrooxy-2-(nitrooxymethyl)oxan-3-yl]oxyoxan-3-yl]oxy-3,5-dinitrooxy-6-(nitrooxymethyl)oxan-4-yl] nitrate Chemical compound O([C@@H]1O[C@@H]([C@H]([C@H](O[N+]([O-])=O)[C@H]1O[N+]([O-])=O)O[C@H]1[C@@H]([C@@H](O[N+]([O-])=O)[C@H](O[N+]([O-])=O)[C@@H](CO[N+]([O-])=O)O1)O[N+]([O-])=O)CO[N+](=O)[O-])[C@@H]1[C@@H](CO[N+]([O-])=O)O[C@@H](O[N+]([O-])=O)[C@H](O[N+]([O-])=O)[C@H]1O[N+]([O-])=O FJWGYAHXMCUOOM-QHOUIDNNSA-N 0.000 description 3
- 229920001220 nitrocellulos Polymers 0.000 description 3
- 239000011780 sodium chloride Substances 0.000 description 3
- 102000004190 Enzymes Human genes 0.000 description 2
- 108090000790 Enzymes Proteins 0.000 description 2
- 239000004471 Glycine Substances 0.000 description 2
- 239000002033 PVDF binder Substances 0.000 description 2
- 239000004952 Polyamide Substances 0.000 description 2
- WCUXLLCKKVVCTQ-UHFFFAOYSA-M Potassium chloride Chemical compound [Cl-].[K+] WCUXLLCKKVVCTQ-UHFFFAOYSA-M 0.000 description 2
- 230000000274 adsorptive effect Effects 0.000 description 2
- 125000003172 aldehyde group Chemical group 0.000 description 2
- 229920002678 cellulose Polymers 0.000 description 2
- 239000001913 cellulose Substances 0.000 description 2
- 229920002301 cellulose acetate Polymers 0.000 description 2
- 239000003795 chemical substances by application Substances 0.000 description 2
- 235000014113 dietary fatty acids Nutrition 0.000 description 2
- 239000012636 effector Substances 0.000 description 2
- 239000000194 fatty acid Substances 0.000 description 2
- 229930195729 fatty acid Natural products 0.000 description 2
- 239000000499 gel Substances 0.000 description 2
- 239000007791 liquid phase Substances 0.000 description 2
- 230000000813 microbial effect Effects 0.000 description 2
- 239000000178 monomer Substances 0.000 description 2
- 229920002647 polyamide Polymers 0.000 description 2
- 229920006393 polyether sulfone Polymers 0.000 description 2
- 229920002981 polyvinylidene fluoride Polymers 0.000 description 2
- 229910000160 potassium phosphate Inorganic materials 0.000 description 2
- 235000011009 potassium phosphates Nutrition 0.000 description 2
- 102000004196 processed proteins & peptides Human genes 0.000 description 2
- 108090000765 processed proteins & peptides Proteins 0.000 description 2
- 239000013017 sartobind Substances 0.000 description 2
- 239000000758 substrate Substances 0.000 description 2
- 239000000725 suspension Substances 0.000 description 2
- PXFBZOLANLWPMH-UHFFFAOYSA-N 16-Epiaffinine Natural products C1C(C2=CC=CC=C2N2)=C2C(=O)CC2C(=CC)CN(C)C1C2CO PXFBZOLANLWPMH-UHFFFAOYSA-N 0.000 description 1
- 229920000936 Agarose Polymers 0.000 description 1
- 229920000856 Amylose Polymers 0.000 description 1
- 108091003079 Bovine Serum Albumin Proteins 0.000 description 1
- 229920002101 Chitin Polymers 0.000 description 1
- 229920001661 Chitosan Polymers 0.000 description 1
- HTTJABKRGRZYRN-UHFFFAOYSA-N Heparin Chemical compound OC1C(NC(=O)C)C(O)OC(COS(O)(=O)=O)C1OC1C(OS(O)(=O)=O)C(O)C(OC2C(C(OS(O)(=O)=O)C(OC3C(C(O)C(O)C(O3)C(O)=O)OS(O)(=O)=O)C(CO)O2)NS(O)(=O)=O)C(C(O)=O)O1 HTTJABKRGRZYRN-UHFFFAOYSA-N 0.000 description 1
- 108060003951 Immunoglobulin Proteins 0.000 description 1
- 102000004856 Lectins Human genes 0.000 description 1
- 108090001090 Lectins Proteins 0.000 description 1
- 241000100287 Membras Species 0.000 description 1
- 239000002262 Schiff base Substances 0.000 description 1
- 150000004753 Schiff bases Chemical class 0.000 description 1
- 101710172711 Structural protein Proteins 0.000 description 1
- QAOWNCQODCNURD-UHFFFAOYSA-L Sulfate Chemical compound [O-]S([O-])(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-L 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 239000008186 active pharmaceutical agent Substances 0.000 description 1
- 239000003463 adsorbent Substances 0.000 description 1
- 229930013930 alkaloid Natural products 0.000 description 1
- 150000001413 amino acids Chemical class 0.000 description 1
- 239000003242 anti bacterial agent Substances 0.000 description 1
- 229940088710 antibiotic agent Drugs 0.000 description 1
- 229940053200 antiepileptics fatty acid derivative Drugs 0.000 description 1
- 239000012736 aqueous medium Substances 0.000 description 1
- 239000011324 bead Substances 0.000 description 1
- 230000003592 biomimetic effect Effects 0.000 description 1
- 239000008280 blood Substances 0.000 description 1
- 210000004369 blood Anatomy 0.000 description 1
- 229940098773 bovine serum albumin Drugs 0.000 description 1
- 150000001720 carbohydrates Chemical class 0.000 description 1
- 235000014633 carbohydrates Nutrition 0.000 description 1
- 239000000969 carrier Substances 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000005515 coenzyme Substances 0.000 description 1
- -1 cyanoborohydride Chemical compound 0.000 description 1
- BNIILDVGGAEEIG-UHFFFAOYSA-L disodium hydrogen phosphate Chemical compound [Na+].[Na+].OP([O-])([O-])=O BNIILDVGGAEEIG-UHFFFAOYSA-L 0.000 description 1
- 239000003814 drug Substances 0.000 description 1
- 239000000975 dye Substances 0.000 description 1
- 238000010828 elution Methods 0.000 description 1
- 230000002124 endocrine Effects 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 238000005562 fading Methods 0.000 description 1
- 150000004665 fatty acids Chemical class 0.000 description 1
- 125000002485 formyl group Chemical class [H]C(*)=O 0.000 description 1
- 102000037865 fusion proteins Human genes 0.000 description 1
- 108020001507 fusion proteins Proteins 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 229960002897 heparin Drugs 0.000 description 1
- 229920000669 heparin Polymers 0.000 description 1
- 239000012477 high molecular weight ligand Substances 0.000 description 1
- 230000003054 hormonal effect Effects 0.000 description 1
- 239000005556 hormone Substances 0.000 description 1
- 229940088597 hormone Drugs 0.000 description 1
- 230000002209 hydrophobic effect Effects 0.000 description 1
- 102000018358 immunoglobulin Human genes 0.000 description 1
- 229940072221 immunoglobulins Drugs 0.000 description 1
- 239000003112 inhibitor Substances 0.000 description 1
- 239000002523 lectin Substances 0.000 description 1
- 229920005610 lignin Polymers 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000010369 molecular cloning Methods 0.000 description 1
- 229910000402 monopotassium phosphate Inorganic materials 0.000 description 1
- 235000019796 monopotassium phosphate Nutrition 0.000 description 1
- 102000039446 nucleic acids Human genes 0.000 description 1
- 108020004707 nucleic acids Proteins 0.000 description 1
- 150000007523 nucleic acids Chemical class 0.000 description 1
- 239000012071 phase Substances 0.000 description 1
- PJNZPQUBCPKICU-UHFFFAOYSA-N phosphoric acid;potassium Chemical compound [K].OP(O)(O)=O PJNZPQUBCPKICU-UHFFFAOYSA-N 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 229920001184 polypeptide Polymers 0.000 description 1
- 239000001103 potassium chloride Substances 0.000 description 1
- 235000011164 potassium chloride Nutrition 0.000 description 1
- 239000003755 preservative agent Substances 0.000 description 1
- 230000002335 preservative effect Effects 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
- 239000011734 sodium Substances 0.000 description 1
- 229910000033 sodium borohydride Inorganic materials 0.000 description 1
- 239000012279 sodium borohydride Substances 0.000 description 1
- 238000001179 sorption measurement Methods 0.000 description 1
- 239000013076 target substance Substances 0.000 description 1
- 230000002123 temporal effect Effects 0.000 description 1
- 239000002676 xenobiotic agent Substances 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D67/00—Processes specially adapted for manufacturing semi-permeable membranes for separation processes or apparatus
- B01D67/0081—After-treatment of organic or inorganic membranes
- B01D67/0088—Physical treatment with compounds, e.g. swelling, coating or impregnation
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D61/00—Processes of separation using semi-permeable membranes, e.g. dialysis, osmosis or ultrafiltration; Apparatus, accessories or auxiliary operations specially adapted therefor
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D67/00—Processes specially adapted for manufacturing semi-permeable membranes for separation processes or apparatus
- B01D67/0081—After-treatment of organic or inorganic membranes
- B01D67/0093—Chemical modification
- B01D67/00931—Chemical modification by introduction of specific groups after membrane formation, e.g. by grafting
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D67/00—Processes specially adapted for manufacturing semi-permeable membranes for separation processes or apparatus
- B01D67/0081—After-treatment of organic or inorganic membranes
- B01D67/0095—Drying
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J20/00—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
- B01J20/28—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof characterised by their form or physical properties
- B01J20/28002—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof characterised by their form or physical properties characterised by their physical properties
- B01J20/28004—Sorbent size or size distribution, e.g. particle size
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J20/00—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
- B01J20/28—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof characterised by their form or physical properties
- B01J20/28014—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof characterised by their form or physical properties characterised by their form
- B01J20/28033—Membrane, sheet, cloth, pad, lamellar or mat
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J20/00—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
- B01J20/28—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof characterised by their form or physical properties
- B01J20/28054—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof characterised by their form or physical properties characterised by their surface properties or porosity
- B01J20/28078—Pore diameter
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J20/00—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
- B01J20/30—Processes for preparing, regenerating, or reactivating
- B01J20/32—Impregnating or coating ; Solid sorbent compositions obtained from processes involving impregnating or coating
- B01J20/3231—Impregnating or coating ; Solid sorbent compositions obtained from processes involving impregnating or coating characterised by the coating or impregnating layer
- B01J20/3242—Layers with a functional group, e.g. an affinity material, a ligand, a reactant or a complexing group
Definitions
- Membrane membrane, filtration module and method for separating biomolecules from a liquid
- the invention relates to a membrane consisting of a microporous membrane body with an affinity ligand capable of interacting with at least one type of molecule in a liquid.
- the invention further relates to a filtration module for separating biomolecules from a liquid consisting of a housing and at least one membrane.
- the invention further relates to a method for separating biomolecules from a liquid by means of membranes with chemically activated microporous membrane bodies coupled to the affinity ligands which are capable of interacting with the biomolecules to be separated.
- Gel-shaped spherical supports for affinity ligands have long been used in many areas of biotechnology for the purification and separation of a wide variety of biomolecules.
- An example of this are the agarose-based affinity carriers, which are sold in suspension.
- the suspension medium can be water or another solvent. Only a few matrices are offered in lyophilized form.
- a disadvantage of the known separation of biomolecules is that the supports or membranes with the coupled affinity ligands have to be prevented from drying out, in order to avoid a loss of the bioactivity of the ligands.
- a water-wet condition of the membranes also harbors the risk of a microbial attack and necessitates the addition of a preservative.
- the object of the present invention is therefore to provide membranes for the separation of biomolecules from a liquid with the aid of affinity ligands, so that their cumbersome and costly wet storage can be avoided.
- the membrane body with the affinity ligand can be stored in a dry state while maintaining the activity of the affinity ligand.
- the fact that the membrane body can be stored dry with practically no significant loss of activity means that storage and transport costs can be significantly reduced.
- the separation of the biomolecules is simplified.
- membranes loaded with affinity ligands such as proteins can be stored dry for a long time without significant loss of activity.
- These are microporous membranes from Sartorius AG Göttingen, which are available under the trade name Sartobind ".” Dry "should be understood to mean that the pore volume of the membrane or the membrane body is essentially filled with air. This does not exclude that the inner surface is covered by a volatile organic substance.
- Membranes with microporous adsorptive membrane bodies based on, for example, cellulose acetate (CA), cellulose nitrate (CN), polyamide, PESU, PP, PVDF are suitable.
- the pore size is between 0.01 and 15 ⁇ .
- a pore size between 0.2 and 5 ⁇ m is preferred.
- the membrane body also has a thickness between 100 and 500 ⁇ m, preferably from 200 to 300 ⁇ m.
- the membranes are preferably chemically activated so that the affinity ligands are chemically coupled.
- a physical connection of the affinity ligands to the membrane is also possible.
- the membrane body is impregnated with glycerin.
- the glycerin impregnation contributes to the fact that process the structure of the microporous membrane or the membrane body is not damaged.
- affinity ligands are known to the person skilled in the art.
- adsorptive ligands are:
- Another object of the invention is to provide a device or a filtration module that is suitable for the cost-effective and effective separation of biomolecules.
- the filtration module has the advantages mentioned above.
- Membranes a selective separation of different biomolecules can be achieved.
- the membranes can also be relatively easily adapted to the respective separation problem.
- the Membra NEN can be arranged in multiple layers in one housing. However, they can also be arranged one behind the other in different housings or housing chambers
- Another object of the present invention is therefore to provide an efficient and cost-effective method for separating biomolecules from a liquid to be processed, which method can be dispensed with cumbersome wet storage and transport.
- This object is achieved in connection with the preamble of claim 12 in that the following steps are carried out: a) coupling the affinity ligand in a solvent to the membrane body, b) rinsing the membrane body with at least one rinsing medium, c) largely removing the last one Flushing medium through a drying process, d) dry intermediate storage of the membranes if necessary and e) filtering the liquid through the membranes so that the biomolecules are separated.
- the membrane is preferably dried to a water activity of 40 40%.
- Under water activity is the equilibrium to understand the weight partial pressure of water in relation to pure water of the same temperature.
- the last rinsing medium after step b) can be added in a step b1) as a volatile organic substance or component which is miscible with the rinsing medium as an impregnating agent.
- the impregnation agent remains in the membrane during the drying process. It can form a film on the pore surface or keep the membrane matrix in a swollen state.
- FIG. 1 a schematic representation of a filter module with a membrane arranged in a housing
- FIG. 2 is a schematic representation of a filter module for separating biomolecules with a membrane and connected in series in housings
- Figure 3 a schematic representation of a filter module for separating biomolecules with multi-layered membranes in a housing.
- a filter module 1 for separating biomolecules from a liquid essentially consists of a housing 2 and a membrane 3 with a membrane body 4.
- the housing 2 has an inflow 5 and an outflow 6.
- the membrane 3 with its microporous adsorbent membrane body 4 is based on, for example, cellulose sulfate, cellulose nitrate, polyamide, PESU, PP, PVDF and has a pore size between 0.01 to 15 ⁇ m, preferably 0.2 to 5 ⁇ m.
- the flat membrane body 4 has a thickness between 100 and 500 ⁇ m, preferably 200 to 300 ⁇ m.
- Affinity ligands (not shown) known to the person skilled in the art are coupled to the membrane body 4. The affinity ligands are selected so that they are able to interact with the biomolecule to be separated from the liquid to be processed.
- the membrane 3 can be arranged in accordance with FIG. 1 in the housing 2.
- Several housings 2 with membranes 3 can be arranged one behind the other.
- the membranes 3 'in multiple layers in a housing 2 r is also possible to arrange the membranes 3 'in multiple layers in a housing 2 r .
- the affinity ligand not shown, is chemically coupled to the membrane 3, 3 ', the membrane 3, 3' is impregnated with glycerol and then subjected to a drying process. The water is largely removed from the membrane 3, 3 '. After dry storage or after transport, the liquid 3 to be processed is fed to the membrane 3, 3 'via the inflow 5 and transported convectively through the membrane so that it can flow off via the outflow 6.
- the biomolecules to be separated are bound to the affinity ligands.
- a microporous membrane of the type Sartobind® Aldehyde Membrane code 19306 functionalized with aldehyde groups was reacted with Protein A.
- Three filter discs with a diameter of 25 mm were shaken with 2 ml of this solution in a small plastic petri dish for 3 h at ambient temperature. 1% final concentration of cyanoborohydride was added to reduce the resulting Schiff bases. After the reaction had ended, the membranes were removed and transferred to a fresh petri dish.
- membranes were removed and tested for their binding capacity for human IgGl and IgG2 immunoglobulins.
- Human expired plasma from a local blood bank was diluted 1:40 with PBS and this solution was membrane filtered through 0.2 ⁇ m. 10 ml of this solution thus obtained was filled into the syringe and filtered by gravity over the three built-in membranes. The mixture was then rinsed with 10 ml of PBS and the bound amount of IgG was eluted through 10 ml of 0.1 M glycine pH 2.7. The absorption of the elution solution at 280 nm was determined in a spectrophotometer and the protein binding capacity of the membrane was determined using a calibration line with bovine serum albumin as the fading substance.
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Engineering & Computer Science (AREA)
- Analytical Chemistry (AREA)
- Organic Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Manufacturing & Machinery (AREA)
- Health & Medical Sciences (AREA)
- Transplantation (AREA)
- Water Supply & Treatment (AREA)
- Separation Using Semi-Permeable Membranes (AREA)
Abstract
Description
Claims
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US10/516,404 US20050208637A1 (en) | 2002-07-23 | 2003-06-21 | Membraine filtration module and method for the separation of biomolecules from a liquid |
AU2003237972A AU2003237972A1 (en) | 2002-07-23 | 2003-06-21 | Membrane, filtration module and method for the separation of biomolecules from a liquid |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE10233542A DE10233542A1 (de) | 2002-07-23 | 2002-07-23 | Membran, Filtrationsmodul und Verfahren zur Abtrennung von Biomolekülen aus einer Flüssigkeit |
DE10233542.7 | 2002-07-23 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2004009223A1 true WO2004009223A1 (de) | 2004-01-29 |
Family
ID=30128314
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/EP2003/006564 WO2004009223A1 (de) | 2002-07-23 | 2003-06-21 | Membran, filtrationsmodul und verfahren zur abtrennung von biomolekülen aus einer flüssigkeit |
Country Status (4)
Country | Link |
---|---|
US (1) | US20050208637A1 (de) |
AU (1) | AU2003237972A1 (de) |
DE (1) | DE10233542A1 (de) |
WO (1) | WO2004009223A1 (de) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102009024410A1 (de) * | 2009-06-09 | 2010-12-30 | Sartorius Stedim Biotech Gmbh | Verfahren zur Gewinnung sekundärer Pflanzeninhaltsstoffe |
WO2012086838A1 (ja) * | 2010-12-24 | 2012-06-28 | 旭化成メディカル株式会社 | 温度応答性リガンド固定化膜モジュールを用いた生理活性物質の分離方法 |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO1991003317A1 (de) * | 1989-09-06 | 1991-03-21 | Sartorius Ag | Mikroporöses adsorbens |
US5286449A (en) * | 1988-04-04 | 1994-02-15 | Asahi Medical Co., Ltd. | Adsorber module for whole blood treatment and an adsorber apparatus containing the adsorber module |
EP0611592A2 (de) * | 1993-02-11 | 1994-08-24 | Pall Corporation | Für die Affinitätstrennung verwendbare Membranen und Verfahren zur Membranaktivierung |
US5766908A (en) * | 1995-03-08 | 1998-06-16 | Akzo Nobel Nv | High-flux semipermeable membrane containing immobilized affinity ligands |
US20010021413A1 (en) * | 1994-04-26 | 2001-09-13 | Millipore Corporation | Method of making a composition for separating and concentrating certain ions from mixed ion solutions |
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2002
- 2002-07-23 DE DE10233542A patent/DE10233542A1/de not_active Ceased
-
2003
- 2003-06-21 US US10/516,404 patent/US20050208637A1/en not_active Abandoned
- 2003-06-21 WO PCT/EP2003/006564 patent/WO2004009223A1/de not_active Application Discontinuation
- 2003-06-21 AU AU2003237972A patent/AU2003237972A1/en not_active Abandoned
Patent Citations (5)
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AU2003237972A1 (en) | 2004-02-09 |
DE10233542A1 (de) | 2004-02-12 |
US20050208637A1 (en) | 2005-09-22 |
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