WO2002010759A2 - Beschichtung für verschiedenartige substrate sowie verfahren zu deren herstellung - Google Patents
Beschichtung für verschiedenartige substrate sowie verfahren zu deren herstellung Download PDFInfo
- Publication number
- WO2002010759A2 WO2002010759A2 PCT/EP2001/008701 EP0108701W WO0210759A2 WO 2002010759 A2 WO2002010759 A2 WO 2002010759A2 EP 0108701 W EP0108701 W EP 0108701W WO 0210759 A2 WO0210759 A2 WO 0210759A2
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- cfl
- coating
- substrate
- layer
- hydrophilic polymer
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Ceased
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Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
- G01N33/48—Biological material, e.g. blood, urine; Haemocytometers
- G01N33/50—Chemical analysis of biological material, e.g. blood, urine; Testing involving biospecific ligand binding methods; Immunological testing
- G01N33/53—Immunoassay; Biospecific binding assay; Materials therefor
- G01N33/543—Immunoassay; Biospecific binding assay; Materials therefor with an insoluble carrier for immobilising immunochemicals
- G01N33/551—Immunoassay; Biospecific binding assay; Materials therefor with an insoluble carrier for immobilising immunochemicals the carrier being inorganic
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
- G01N33/48—Biological material, e.g. blood, urine; Haemocytometers
- G01N33/50—Chemical analysis of biological material, e.g. blood, urine; Testing involving biospecific ligand binding methods; Immunological testing
- G01N33/53—Immunoassay; Biospecific binding assay; Materials therefor
- G01N33/543—Immunoassay; Biospecific binding assay; Materials therefor with an insoluble carrier for immobilising immunochemicals
- G01N33/54393—Improving reaction conditions or stability, e.g. by coating or irradiation of surface, by reduction of non-specific binding, by promotion of specific binding
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/31504—Composite [nonstructural laminate]
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/31504—Composite [nonstructural laminate]
- Y10T428/31725—Of polyamide
Definitions
- the present invention relates to polymeric coatings for various types of substrate surfaces in order to increase their bio-inert character.
- bio-inert surfaces - that is to say with as little interaction as possible - are preferred as far as possible.
- Polymers used as substrate coating include polyethers, such as polyethylene glycol; Polysaccharides, such as heparin or dextran; Polyalcohols, such as polyvinyl alcohol; or also polyamides, such as polyacrylamide.
- polyethers such as polyethylene glycol
- Polysaccharides such as heparin or dextran
- Polyalcohols such as polyvinyl alcohol
- polyamides such as polyacrylamide.
- Biomolecules can be adjusted.
- the hydrophilic polymer layer can be composed of different polymers. This has the advantage that the permeability of the hydrophilic polymer layer can be controlled for biomolecules with different molecular weights. This is done by adjusting the concentration ratio between low and high molecular weight polymers, which form the hydrophilic polymer layer, according to the molecules to be examined.
- At least one further polymer and / or particle layer can preferably be applied to the hydrophilic polymer layer. This lies like a porous film over the brush-like structure.
- Preferred hydrophilic polymers are polysaccharides, polyalcohols, polyethers, polyamides, polycarboxylic acids, polysulfates / sulfonates, polyphosphates / phosphonates and / or combinations thereof, which can also be chemically functionalized by further reaction steps. These include e.g. with isothiocyanate, isocyanate, carboxylic acid azide, N-hydroxysuccinimide ester, N-
- amphiphilic polymers or polyamines can also be used as the polymer adhesion promoter layer. These could carry disulfide, sulfide, diselenide, selenide, thiol, isonitrile, nitro, selenol, P (III), isothiocyanate, xanthate, thiocarbamate, phosphine, thioacetate or dithioacetate groups.
- the coatings according to the invention can be combined with different substrates.
- the use of conductive substrate materials is an advantageous further development for electrochemical use.
- the layers are also electrochemical and to a limited extent permeable to ions. This means that biomolecules can be selectively and reversibly enriched in the brush-like polymer layer under certain conditions by applying a potential to an underlying metal substrate. If enzymes are immobilized in the polymer layer, an extremely fast-responding enzyme sensor is obtained when a suitable potential is applied.
- a glass and / or other oxidic material can likewise be used as the substrate, it being possible for this to be silanized by an additional reaction step.
- the adhesion promoter layer can be applied directly to the substrate surface as well as coupled via a bifunctional alkyl mercaptan.
- the coating of substrates based on plastic materials can be implemented according to the invention, the plastic substrates before the coating can also be functionalized by treatment with oxidizing agents, by the use of surface-modifying plasma methods or ionizing radiation.
- hydrophobic surfaces with a sufficiently low surface energy can be coated with an adhesion promoter layer made of amphiphilic polymers.
- An additional alternative of the substrate to be used for the coating according to the invention are natural or synthetic fibers or a combination of both.
- the manufacturing method according to the invention has a system-inherent high fault tolerance, which leads to constant layer qualities.
- the coating preferably has a layer thickness between 10 and 500 nm and particularly preferably between 10 and 100 nm.
- the layers according to the invention can be used particularly advantageously for coating biochips, in particular protein chips here, since on the one hand they suppress non-specific connections to the chip surface and on the other hand they ensure a high immobilization capacity.
- the hydrogel layers according to the invention can be used not only to concentrate the biomolecules to be analyzed on the target surface by electrostatic adsorption, but also to carry out biospecific recognition reactions on covalently immobilized ligands.
- MALDI Microx Assisted Laser Desorption Ionization
- WO 98/59360 are poorly suited for this because of the low immobilization capacity of the planar-coated surfaces, since the resulting signal / noise ratio of the measurements carried out with them is too low.
- hydrogel surfaces which are produced in accordance with the method described in US Pat. No. 5,436,161, since, in addition to other disadvantages already described above, this provides hydrogels with an immobilization capacity which is far too small.
- hydrogel layers with a much higher immobilization capacity can be produced with the method according to the invention. The biomolecules adsorbed on these layers provide a very good signal quality in the subsequent MALDI analysis.
- the layers according to the invention can be used to determine the pI of unknown biomolecules, if appropriate also in mixtures.
- the unknown sample is dissolved in buffers with different pH values and these solutions are allowed to act on discrete hydrogel-coated substrates.
- the pi of the individual components of a can be determined with a suitable gradation of the pH gradient by means of a subsequent MALDI analysis or other method for quantifying the adsorbed biomolecules Narrow the mixture very precisely.
- the hydrogel layers can be used for the sequence analysis of biomolecules, in particular of proteins. To do this, first immobilize a suitable, e.g. proteolytically active enzyme in the hydrogel matrix and lets it act on biomolecules adsorbed in a later step. The masses of the resulting degradation products can then be determined using MALDI.
- UV-absorbing substances such as 3,5-dimethoxy-4-hydroxycytic acid
- a suitable polymeric adhesion promoter there is the possibility, for MALDI measurements, of UV-absorbing substances, such as 3,5-dimethoxy-4-hydroxycytic acid, which are usually dripped on immediately before the measurement by covalent coupling into the Integrate adhesion promoters.
- UV-absorbing substances such as 3,5-dimethoxy-4-hydroxycytic acid
- the layers according to the invention can optimize chromatographic processes or to characterize unknown substance mixtures.
- several layers with different adsorption properties are immobilized side by side on a carrier. These can be, for example, differently charged, hydrophobic hydrogel layers derivatized with metal ions or with chelating groups. If you now place the solution of a substance to be examined on such a carrier and analyze the amount adsorbed on the different layers with a suitable analysis method, such as MALDI or SPR, substance-specific adsorption profiles can be created very quickly. These can then be used, for example, to develop or optimize development processes. If an unknown sample mixture is applied to such a carrier, the individual constituents are adsorbed on the different layers to different degrees, depending on the affinity. The resulting specific adsorption patterns can then be determined by subsequent MALDI analysis.
- a further variant is the coupling of pharmaceutically active substances to the adhesion promoter or hydrogel layer. If these are bound, for example, via hydrolyzable bonds, such as ester groups, they are gradually hydrolysed co o IV) c ⁇ o C ⁇ o C ⁇ o C ⁇ o C ⁇
- FIG. 4 schematically shows a layer element similar to FIG. 1, in which a further, preferably uncharged, indifferent polymer layer (5), which is present in a train configuration, has been placed over the hydrophilic polymer layer in brush conformation.
- a further, preferably uncharged, indifferent polymer layer (5) which is present in a train configuration, has been placed over the hydrophilic polymer layer in brush conformation.
- layer (5) shields the actual sensitive layer (4) against non-specific interactions from the sample matrix and can also be used as a molecular filter.
- iodoacetic acid 0.75 g is added to a solution of 0.5 g of dextran MW 60 kDa (Sigma) in 10 ml of 3 M NaOH with constant stirring. After 70 min at room temperature, the mixture is neutralized with phosphoric acid and dialyzed against dist. Water. The carboxymethyldextran solution is then concentrated to 1-2 ml, with 5 ml Methanol added and then precipitated with 25 ml of ethanol. After centrifugation, washing twice with ethanol and drying in vacuo, 410 mg of white powder are obtained.
- the degree of carboxymethylation which can be determined, for example, by back-titration of an aliquot converted into the free acid by means of acidic ion exchangers, is 1 COOH group per six anhydroglucose units.
- Glass platelets 1 mm thick coated with gold on one side are cleaned, covered with a solution of 0.1% poly (ethylene-co-maleic acid-co-maleic acid mono (carboxymethylethyl sulfide) ester) in water and swirled for 1 hour.
- the carboxyl-functionalized glass plates are exposed to 20 mM N- (3-dimethylaminopropyl) -N ⁇ -ethylcarbodiimide (Fluka) and 10 M N-hydroxysuccinimide (Merck) in 0.1 M sodium 2-morpholino-ethanesulfonate buffer, pH 6.0 (Fluka) converted to the active NHS ester.
- CM dextran solidified to a gel-like mass is treated for 10 to 20 hours with 0.1 M Na carbonate buffer pH 9.4, whereupon the non-covalently bound CM dextran comes off.
- the remaining monolayer has a contact angle of less than 5 °.
- the gold-coated, CM dextran-modified glass substrate from Example 2 is mounted in a surface plasmon resonance (SPR) biosensor (IBIS, XanTec) and tested for non-specific interactions by exposure to various protein-containing solutions (see FIG. 5).
- SPR surface plasmon resonance
- a solution of 1 mg bovine serum albumin (BSA) / ml physiological saline buffer (PBS), pH 7.4, is quickly turned into an uncoated reference surface 5 ng protein / mm 2 irreversibly adsorbed, which corresponds to an almost complete occupancy.
- BSA bovine serum albumin
- PBS physiological saline buffer
- pH 7.4 pH 7.4
- a gold-vaporized glass substrate coated with carboxymethyldextran MW 500 kDa as in Example 3 is mounted in a surface plasmon resonance (SPR) biosensor (IBIS, XanTec) and the immobilization capacity of the sensor surface is measured (see FIG. 6).
- SPR surface plasmon resonance
- IBIS XanTec
- electrostatic adsorption takes place about five times higher than that of a comparable carboxylated planar surface.
- the enriched BSA is again quantitatively desorbed by elution buffer (2 M NaCl, pH 13).
- the gold sensor discs are coated according to Example 3 with carboxymethyl dextran.
- carboxymethyl dextran instead of polyethyleneimine, high molecular weight polyallylamine (Aldrich No. 28,322-3) is used, and instead of 1/6 cm dextran MW60 kDa, this time completely carboxylated CM extran MW 5 kDa is used. This is rinsed once with 2 sts
- the immobilization capacity is approx. 8.5 ng BSA / mm 2 , whereas with alkaline elution only 5.3 ng BSA / mm 2 . This observation can be traced back to a loose, partially detached structure of the polyallylamine chains after the acid elution, which ultimately results in a higher surface area and thus also a higher immobilization capacity.
- the gold sensor discs are coated according to Example 3 with carboxymethyldextran, but instead of 1/6 CM dextran MW 60,000 this time a mixture of 7.5% 1/6 CM dextran MW 5,000 and 7.5% completely carboxylated dextran MW 60,000 is used.
- the resulting coatings show a significantly lower diffusion limitation when binding biomolecules to immobilized ligands as well as improved stabilization against non-specific interactions.
- the gold sensor discs are coated according to Example 3 with carboxymethyl dextran.
- the carboxyl groups are then reactivated with 0.2 M N- (3-dimethylaminopropyl) -N-ethylcarbodiimide and N-hydroxysuccinimide and the chips are treated with a solution of 10% dextran MW 500,000 in 0.1 M PBS buffer pH 7.5. After a reaction time of 2 to 4 hours, unbound dextran is washed with 0.1 M sodium carbonate buffer pH 9.4 for 4 hours.
- the resulting double layers show a significantly higher diffusion limitation when binding biomolecules to immobilized ligands than the monolayers described in Example 3. They are therefore particularly suitable for carrying out concentration determinations.
- Fig. 11 shows the electrostatic adsorption of BSA in this double layer structure.
- the linear, diffusion-controlled area is marked with arrows.
- FIG. 8 shows the irreversible connection of avidin to dextran-coated sensor surfaces by applying a sufficiently negative potential under conditions in which no adsorption would take place without potential.
- the surface is regenerated by treatment with 1 M NaCl (100 sec).
- a negative potential of - 0.4 and - 0.6 V is applied as a control (at approx. 300 sec), with no change in the SPR signal.
- 500 ⁇ g of avidin / ml of 2 mM sodium acetate buffer pH 4.7 are first added, after which approximately 8 ng / mm 2 are adsorbed.
- Avidin is also deposited by applying various negative potentials (at 600 sec).
- FIG. 9 shows an example of the determination of glucose with GOD Pt electrodes on the basis of carboxymethyl dextran monolayers.
- the Pt electrodes dimensions 800 x 800 ⁇ m, are first provided with a monolayer 1/6 CM-dextran 60 kDa on PEI adhesion promoter according to Example 3.
- a gold-coated MALDI target (Micromass Ltd., Manchester, GB) is cleaned and a 0.5% solution of 1-dodecanethiol in ethanol is applied for 2 h. Then it is washed with ethanol and water. A solution of 1 mg BSA / ml 0.1 M phosphate buffer pH 7.0 is then applied to the hydrophobic surface. After 2 hours, a monolayer of BSA was adsorbed on the hydrophobic surface. It is rinsed and dried.
- a gold-coated MALDI target (Micromass Ltd., Someester, GB) is cleaned and, according to Example 3, with
- Carboxymethyldextran MW 2 million Da coated The surface derivatized in this way is exposed to a solution of 0.1 mg BSA / ml 10 mM sodium acetate buffer pH 5.0 for 1 h. Then rinse with the same sodium acetate buffer or water and dry.
- FIG. 12 shows the signal of the hydrophobic comparison surface
- FIG. 13 the hydrogel-coated target.
- the signal / noise ratio of the hydrogel-coated target is approximately six times better than that of the comparison target.
- a gold-coated MALDI target (Micromass Ltd., Manchester, GB) is cleaned and coated according to Example 3 with carboxymethyldextran MW 20 million Da. Part of the surface thus derivatized is exposed to a solution of a previously desalted monocyte lysate buffered to pH 4.8 for 1 h. The other part is incubated for 1 h with a monocyte lysate pH 7.3 prepared analogously. Both surfaces are rinsed with water, dried briefly and subjected to a MALDI analysis according to Example 13.
- FIG. 14 shows the spectrum of the pH 4.8 lysate
- FIG. 15 shows that of the pH 7.3 lysate.
- the arrows in Fig. 14 indicate some peaks that no longer appear at pH 7.3. From this it can be concluded that the associated molecules have a pl between 4.8 and 7.3.
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- Health & Medical Sciences (AREA)
- Immunology (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Urology & Nephrology (AREA)
- Hematology (AREA)
- Biomedical Technology (AREA)
- Molecular Biology (AREA)
- Analytical Chemistry (AREA)
- General Health & Medical Sciences (AREA)
- Cell Biology (AREA)
- Pathology (AREA)
- Food Science & Technology (AREA)
- Medicinal Chemistry (AREA)
- Physics & Mathematics (AREA)
- Biotechnology (AREA)
- Biochemistry (AREA)
- Microbiology (AREA)
- General Physics & Mathematics (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Inorganic Chemistry (AREA)
- Apparatus Associated With Microorganisms And Enzymes (AREA)
- Laminated Bodies (AREA)
- Immobilizing And Processing Of Enzymes And Microorganisms (AREA)
- Application Of Or Painting With Fluid Materials (AREA)
Abstract
Description
Claims
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| AU2001282034A AU2001282034A1 (en) | 2000-07-28 | 2001-07-27 | Coating for various types of substrate and method for the production thereof |
| GB0304305A GB2381482B (en) | 2000-07-28 | 2001-07-27 | Coating for different substrates and processes for making same. |
| US10/333,737 US8012587B2 (en) | 2000-07-28 | 2001-07-27 | Coating for various types of substrate and method for the production thereof |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE10036907A DE10036907B4 (de) | 2000-07-28 | 2000-07-28 | Verfahren zur Herstellung einer Beschichtung auf einem mit Gold bedampften Glassubstrat, Beschichtung hergestellt nach diesem Verfahren und deren Verwendung |
| DE10036907.3 | 2000-07-28 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| WO2002010759A2 true WO2002010759A2 (de) | 2002-02-07 |
| WO2002010759A3 WO2002010759A3 (de) | 2002-12-27 |
Family
ID=7650596
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/EP2001/008701 Ceased WO2002010759A2 (de) | 2000-07-28 | 2001-07-27 | Beschichtung für verschiedenartige substrate sowie verfahren zu deren herstellung |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US8012587B2 (de) |
| AU (1) | AU2001282034A1 (de) |
| DE (1) | DE10036907B4 (de) |
| GB (1) | GB2381482B (de) |
| WO (1) | WO2002010759A2 (de) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2004005918A3 (en) * | 2002-07-05 | 2004-05-06 | Univ Chicago | Characterization of biochips containing self-assembled monolayers with maldi-tof-ms |
| EP2363501A1 (de) | 2010-03-02 | 2011-09-07 | Universitätsklinikum Hamburg-Eppendorf | Verfahren zur Isolierung von Zielzellen |
| WO2013072309A1 (en) | 2011-11-15 | 2013-05-23 | F. Hoffmann-La Roche Ag | Polymer modified substrates, their preparation and uses thereof |
| EP3444034A1 (de) | 2017-08-18 | 2019-02-20 | XanTec bioanalytics GmbH | Fliesszelle für die selektive anreicherung von partikeln oder zellen |
Families Citing this family (18)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6764720B2 (en) | 2000-05-16 | 2004-07-20 | Regents Of The University Of Minnesota | High mass throughput particle generation using multiple nozzle spraying |
| US20050092350A1 (en) * | 2003-10-31 | 2005-05-05 | Mark Buehler | Scrubbing brush with ligand attachments |
| US7354980B1 (en) | 2004-03-12 | 2008-04-08 | Key Medical Technologies, Inc. | High refractive index polymers for ophthalmic applications |
| US7446157B2 (en) | 2004-12-07 | 2008-11-04 | Key Medical Technologies, Inc. | Nanohybrid polymers for ophthalmic applications |
| US8084116B2 (en) * | 2005-09-30 | 2011-12-27 | Alcatel Lucent | Surfaces physically transformable by environmental changes |
| US9108217B2 (en) | 2006-01-31 | 2015-08-18 | Nanocopoeia, Inc. | Nanoparticle coating of surfaces |
| EP2529761B1 (de) * | 2006-01-31 | 2017-06-14 | Nanocopoeia, Inc. | Oberflächenbeschichtung mit nanoteilchen |
| US7951428B2 (en) | 2006-01-31 | 2011-05-31 | Regents Of The University Of Minnesota | Electrospray coating of objects |
| US20090203536A1 (en) * | 2006-06-06 | 2009-08-13 | Vermette Patrick | Assay supports comprising a peg support, said support attached from a peg solution in cloud point (theta solvent) conditions |
| DE102007049013A1 (de) * | 2007-10-11 | 2009-04-16 | Endress + Hauser Conducta Gesellschaft für Mess- und Regeltechnik mbH + Co. KG | Sensor mit Langzeitstabilität für Bio-Prozesse |
| WO2010030853A1 (en) * | 2008-09-12 | 2010-03-18 | Frederick Knute Husher | Coated slide |
| US20100096327A1 (en) * | 2008-09-19 | 2010-04-22 | Gin Douglas L | Polymer coatings that resist adsorption of proteins |
| WO2012023391A1 (ja) * | 2010-08-17 | 2012-02-23 | コニカミノルタホールディングス株式会社 | 非特異吸着の精製機構を備えたspfs用センサ |
| GB2496122A (en) | 2011-10-31 | 2013-05-08 | Ge Healthcare Bio Sciences Ab | Biological sample preservation on paper |
| US9320465B2 (en) | 2012-06-25 | 2016-04-26 | International Business Machines Corporation | Bio-chips and nano-biochips |
| EP3754011B1 (de) | 2015-09-09 | 2022-02-16 | Drawbridge Health, Inc. | Vorrichtungen zur probeentnahme, stabilisierung und konservierung |
| DE102015115359B4 (de) | 2015-09-11 | 2023-07-27 | Bpc Arnold Gmbh Biopharma Consulting | Biosensorchip |
| CN115044417A (zh) * | 2022-05-11 | 2022-09-13 | 苏州莱博睿思生物科技有限公司 | 一种清洗液、其制备方法及其应用 |
Family Cites Families (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SE456347B (sv) * | 1982-02-09 | 1988-09-26 | Ird Biomaterial Ab | Ytmodifierat fast substrat samt forfarande for framstellning derav |
| US4521564A (en) * | 1984-02-10 | 1985-06-04 | Warner-Lambert Company | Covalent bonded antithrombogenic polyurethane material |
| US5206071A (en) * | 1991-11-27 | 1993-04-27 | Arkwright Incorporated | Archivable ink jet recording media |
| DK100592D0 (da) * | 1992-08-10 | 1992-08-10 | Mouritsen & Elsner Aps | Metode til kemisk kobling paa faste faser |
| US5503933A (en) * | 1994-02-25 | 1996-04-02 | Purdue Research Foundation | Covalently bonded coatings |
| US5916585A (en) * | 1996-06-03 | 1999-06-29 | Gore Enterprise Holdings, Inc. | Materials and method for the immobilization of bioactive species onto biodegradable polymers |
| NL1004538C2 (nl) * | 1996-11-14 | 1998-05-25 | Cordis Europ | Matrixmateriaal met meerdere biologisch actieve stoffen. |
| AR009439A1 (es) * | 1996-12-23 | 2000-04-12 | Novartis Ag | Un articulo que comprende un sustrato con un recubrimiento polimerico primario que porta grupos reactivos predominantemente en su superficie, unmetodo para preparar dicho articulo, un articulo que posee un recubrimiento de tipo hibrido y una lente de contacto |
| GB2355729A (en) * | 1998-03-24 | 2001-05-02 | Nano Tex Llc | Modified textile and other materials and methods for their preparation |
| AU752942B2 (en) * | 1998-04-13 | 2002-10-03 | Massachusetts Institute Of Technology | Comb copolymers for regulating cell-surface interactions |
| US6187369B1 (en) * | 1998-11-12 | 2001-02-13 | Biocoat Incorporated | Hydrophilic substrates and method of making same |
| DE60041255D1 (de) * | 1999-04-28 | 2009-02-12 | Eidgenoess Tech Hochschule | Polyionische beschichtungen für analytische und sensor-vorrichtungen |
-
2000
- 2000-07-28 DE DE10036907A patent/DE10036907B4/de not_active Expired - Lifetime
-
2001
- 2001-07-27 GB GB0304305A patent/GB2381482B/en not_active Expired - Lifetime
- 2001-07-27 AU AU2001282034A patent/AU2001282034A1/en not_active Abandoned
- 2001-07-27 WO PCT/EP2001/008701 patent/WO2002010759A2/de not_active Ceased
- 2001-07-27 US US10/333,737 patent/US8012587B2/en not_active Expired - Lifetime
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2004005918A3 (en) * | 2002-07-05 | 2004-05-06 | Univ Chicago | Characterization of biochips containing self-assembled monolayers with maldi-tof-ms |
| EP2500729A1 (de) * | 2002-07-05 | 2012-09-19 | The University of Chicago | Charakterisierung von Biochips mit selbstorganisierten Monoschichten |
| EP2363501A1 (de) | 2010-03-02 | 2011-09-07 | Universitätsklinikum Hamburg-Eppendorf | Verfahren zur Isolierung von Zielzellen |
| WO2011107489A1 (en) | 2010-03-02 | 2011-09-09 | Universitätsklinikum Hamburg-Eppendorf | Method for isolating target cells |
| WO2013072309A1 (en) | 2011-11-15 | 2013-05-23 | F. Hoffmann-La Roche Ag | Polymer modified substrates, their preparation and uses thereof |
| EP3444034A1 (de) | 2017-08-18 | 2019-02-20 | XanTec bioanalytics GmbH | Fliesszelle für die selektive anreicherung von partikeln oder zellen |
| WO2019034795A1 (en) | 2017-08-18 | 2019-02-21 | Xantec Bioanalytics Gmbh | FLOW CELL FOR SELECTIVE ENRICHMENT OF TARGET PARTICLES OR CELLS |
| US11602748B2 (en) | 2017-08-18 | 2023-03-14 | Xantec Bioanalytics Gmbh | Flow cell for the selective enrichment of target particles or cells |
Also Published As
| Publication number | Publication date |
|---|---|
| GB2381482A (en) | 2003-05-07 |
| GB2381482B (en) | 2004-11-17 |
| US20050042455A1 (en) | 2005-02-24 |
| DE10036907A1 (de) | 2002-02-14 |
| GB0304305D0 (en) | 2003-04-02 |
| US8012587B2 (en) | 2011-09-06 |
| DE10036907B4 (de) | 2012-03-22 |
| WO2002010759A3 (de) | 2002-12-27 |
| AU2001282034A1 (en) | 2002-02-13 |
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