EP1527342A1 - Hydrogel contenant des groupes liants pouvant etre photostructure en exposition par contact - Google Patents

Hydrogel contenant des groupes liants pouvant etre photostructure en exposition par contact

Info

Publication number
EP1527342A1
EP1527342A1 EP03790647A EP03790647A EP1527342A1 EP 1527342 A1 EP1527342 A1 EP 1527342A1 EP 03790647 A EP03790647 A EP 03790647A EP 03790647 A EP03790647 A EP 03790647A EP 1527342 A1 EP1527342 A1 EP 1527342A1
Authority
EP
European Patent Office
Prior art keywords
composition according
polyacrylamide
hydrogel
linker groups
producing
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.)
Withdrawn
Application number
EP03790647A
Other languages
German (de)
English (en)
Inventor
Hans-Dieter Feucht
Walter Gumbrecht
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Siemens AG
Original Assignee
Siemens AG
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Siemens AG filed Critical Siemens AG
Publication of EP1527342A1 publication Critical patent/EP1527342A1/fr
Withdrawn legal-status Critical Current

Links

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
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
    • C08F220/00—Copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and only one being terminated by only one carboxyl radical or a salt, anhydride ester, amide, imide or nitrile thereof
    • C08F220/02—Monocarboxylic acids having less than ten carbon atoms; Derivatives thereof
    • C08F220/52—Amides or imides
    • C08F220/54—Amides, e.g. N,N-dimethylacrylamide or N-isopropylacrylamide
    • C08F220/56—Acrylamide; Methacrylamide

Definitions

  • the present invention relates to photostructurable liquid compositions for producing hydrogels based on polyacrylamide.
  • Biochips are mostly planar carrier systems made of glass or plastic, the surface of which is equipped with a two-dimensional recognition layer, which comprises biological recognition molecules.
  • immobilization layers One problem with the technical implementation of corresponding immobilization layers is first of all the desire for an inexpensive method for applying the layers to the chips or to transducer systems.
  • the immobilization systems from liquid precursors are expediently dripped onto a suitable base, dispensed thereon, spun on or printed on.
  • To solidify the layers For example, thermal polymerization or crosslinking, drying processes or photochemical polymerization or crosslinking processes are selected.
  • Ph. Arquint describes a photocrosslinked hydrogel based on a crosslinked polyacrylamide ("Integrated Blood Gas Sensor for p02, pC02 and pH based on Silicon Technology (dissertation, Ph. Arquint, Uni Neuchatel, Switzerland, 1994).
  • Hydrogels play an important role in chemical and / or biochemical analysis and in particular in the implementation of chemo and bio sensors. They serve to create an aqueous environment in a mechanically stable form while at the same time guaranteeing the exchange of materials in a predominantly aqueous environment.
  • chemical composition such as network chemistry, mesh size and hydrophilicity, the water content, swelling behavior, mechanical stability, etc. of the hydrogels can be varied over a wide range.
  • Hydrogels are particularly attractive in their application in microstructure technology.
  • hydrogels in layer thicknesses of a few ⁇ m on transducer structures serve as microchemical reaction spaces in which aqueous chemistry can play out.
  • Transducer structures are understood to be electrical, e.g. B. thin-film precious metal electrodes on, for example, a silicon substrate, or optical transducers, such as. B. on glass or plastic surfaces.
  • Contact exposure means that the glass mask, the structure of which is to be transferred to the photosensitive layer during the photo process, is placed directly on this layer.
  • the photo-crosslinkable layer must therefore be such that the glass mask (glass coated with chrome) can be easily removed again from the exposed layer after the exposure process, without damaging the layer. This is not possible with the system described by Arquint.
  • hydrogel precursor Another disadvantage of the system described by Arquint, i.e. The hydrogel precursor can be seen in the fact that there are no reactive linker groups available in the crosslinked layer, with the aid of which chemical or biological recognition molecules are coupled in for analytical applications.
  • a hydrogel precursor for the generation of a hydrogel layer by means of photo structuring in contact exposure which also has reactive linker groups, is to be provided.
  • the present invention solves this problem by using the basic components of the polyacrylamide hydrogels described by Arquint, such as acrylamide, acrylic or methacrylic-based crosslinking molecules and photoinitiator, by introducing further components which are used to produce a tack-free hydrogel which can be photo-structured in contact exposure - Allow prepress with additional reactive linker groups.
  • Arquint such as acrylamide, acrylic or methacrylic-based crosslinking molecules and photoinitiator
  • the present invention accordingly relates to a photostructurable liquid composition for producing a hydrogel layer based on polyacrylamide, which is thereby is distinguished by the fact that, in addition to the monomer precursor of the polyacrylamide, the crosslinking agent and the photoinitiator, it comprises at least one film former, at least one comonomer with reactive linker groups and at least one plasticizer.
  • a water-swellable hydrogel which contains reactive linker groups for immobilizing chemical or biological recognition molecules for analytical applications and the
  • Mass exchange with a predominantly aqueous environment guaranteed.
  • the film former is preferably a water-soluble polymer and is selected from the group consisting of polyvinylpyrrolidone, polyacrylamide and / or polyhydroxyethyl methacrylate.
  • the comonomer with reactive linker groups is preferably selected from the group consisting of maleic anhydride and / or glycidyl (meth) acrylate. These structures are particularly useful for linking or coupling to functions of chemical and / or biological molecules.
  • the composition according to the invention preferably has a plasticizer which is selected from di- and / or triethylene glycol.
  • a plasticizer which is selected from di- and / or triethylene glycol.
  • composition is preferably in a polar, with Water-miscible solvent.
  • Dimethylformamide is particularly preferred.
  • the viscosity of the system can be adjusted by varying the solvent and / or the proportion of solvent.
  • hydrogel precursor composition As an example illustrating the invention, the following hydrogel precursor composition can be mentioned:
  • the solution can be spun onto a substrate, for example a silicon wafer, using a conventional paint spinner.
  • Conventional additives can be used to improve the adhesion, or the wafer can be pretreated (see Arquint, op. Cit.).
  • the spin-coated layer is then dried by a prebake step and exposed by directly placing the mask on in the conventional contact exposure process.
  • the development of non-networked areas as well as the extraction of networked structures, i.e. auxiliary components, uncrosslinked monomers and soluble photoinitiator products can be removed, for example, with water or with water-containing solvents.
  • the composition for producing a hydrogel layer has a miscibility of the components used in a widely variable mixing ratio, good adjustability of the viscosity, good spinability and good film formation.
  • a tack-free film surface is created.
  • the film layer has a photo initiation sufficient transparency for light.
  • the crosslinking density and the swellability in water can be set by the proportion of the crosslinking agent and by the proportion of the film former used.
  • the auxiliary components such as film formers and plasticizers can be easily washed out.
  • the adhesion to the substrate surface can be achieved using conventional adhesion promoter systems, e.g. B. on a silane basis.

Landscapes

  • Health & Medical Sciences (AREA)
  • Immunology (AREA)
  • Chemical & Material Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Hematology (AREA)
  • Molecular Biology (AREA)
  • Urology & Nephrology (AREA)
  • Medicinal Chemistry (AREA)
  • Biomedical Technology (AREA)
  • Biotechnology (AREA)
  • Physics & Mathematics (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Microbiology (AREA)
  • Organic Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Food Science & Technology (AREA)
  • Cell Biology (AREA)
  • Analytical Chemistry (AREA)
  • Biochemistry (AREA)
  • General Health & Medical Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • Pathology (AREA)
  • Compositions Of Macromolecular Compounds (AREA)
  • Laminated Bodies (AREA)

Abstract

L'invention concerne une composition liquide pouvant être photostructurée, destinée à la production d'une couche d'hydrogel à base de polyacrylamide. La composition selon l'invention est caractérisée en ce qu'elle contient, en plus du précurseur monomérique du polyacrylamide, de l'agent réticulant, et du photoinitiateur, au moins un agent filmogène, au moins un comonomère contenant des groupes liants réactifs, et au moins un agent plastifiant.
EP03790647A 2002-08-08 2003-07-23 Hydrogel contenant des groupes liants pouvant etre photostructure en exposition par contact Withdrawn EP1527342A1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE10236460A DE10236460A1 (de) 2002-08-08 2002-08-08 In Kontaktbelichtung fotostrukturierbares Hydrogel mit Linkergruppen
DE10236460 2002-08-08
PCT/DE2003/002482 WO2004021001A1 (fr) 2002-08-08 2003-07-23 Hydrogel contenant des groupes liants pouvant etre photostructure en exposition par contact

Publications (1)

Publication Number Publication Date
EP1527342A1 true EP1527342A1 (fr) 2005-05-04

Family

ID=30775099

Family Applications (1)

Application Number Title Priority Date Filing Date
EP03790647A Withdrawn EP1527342A1 (fr) 2002-08-08 2003-07-23 Hydrogel contenant des groupes liants pouvant etre photostructure en exposition par contact

Country Status (4)

Country Link
US (1) US20060124895A1 (fr)
EP (1) EP1527342A1 (fr)
DE (1) DE10236460A1 (fr)
WO (1) WO2004021001A1 (fr)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102004021780B4 (de) 2004-04-30 2008-10-02 Siemens Ag Verfahren und Anordnung zur DNA-Isolierung mit Trockenreagenzien
DE102004021822B3 (de) 2004-04-30 2005-11-17 Siemens Ag Verfahren und Anordnung zur DNA-Amplifikation mittels PCR unter Einsatz von Trockenreagenzien
WO2023082229A1 (fr) * 2021-11-15 2023-05-19 青岛科技大学 Film composite à gel, son procédé de préparation et son utilisation

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1566249A (en) * 1976-09-24 1980-04-30 Nat Res Dev Hydrogels
US5120796A (en) * 1988-12-20 1992-06-09 Toyo Ink Manufacturing Co., Ltd. Process for the production of reactive microgel and resin composition containing the microgel
JP3028725B2 (ja) * 1994-02-10 2000-04-04 東洋インキ製造株式会社 反応性マイクロゲルおよびそれを用いた水現像可能なフレキソ印刷版用感光性樹脂組成物
WO1997017384A1 (fr) * 1995-11-08 1997-05-15 Kirkpatrick Francis H Procedes et reactifs d'electrophorese sur gel
JP3869898B2 (ja) * 1997-01-10 2007-01-17 住友精化株式会社 アクリルアミド系重合体分散液の製造方法
US6391937B1 (en) * 1998-11-25 2002-05-21 Motorola, Inc. Polyacrylamide hydrogels and hydrogel arrays made from polyacrylamide reactive prepolymers
US6991887B1 (en) * 2000-11-01 2006-01-31 Battelle Memorial Institute Photopatternable sorbent and functionalized films
US20060257560A1 (en) * 2004-12-30 2006-11-16 Affymetrix, Inc. Polymer surfaces for insitu synthesis of polymer arrays

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO2004021001A1 *

Also Published As

Publication number Publication date
DE10236460A1 (de) 2004-02-26
US20060124895A1 (en) 2006-06-15
WO2004021001A1 (fr) 2004-03-11

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