EP2066305A2 - Polymermatrix, verfahren zu deren herstellung sowie deren verwendung - Google Patents
Polymermatrix, verfahren zu deren herstellung sowie deren verwendungInfo
- Publication number
- EP2066305A2 EP2066305A2 EP07802049A EP07802049A EP2066305A2 EP 2066305 A2 EP2066305 A2 EP 2066305A2 EP 07802049 A EP07802049 A EP 07802049A EP 07802049 A EP07802049 A EP 07802049A EP 2066305 A2 EP2066305 A2 EP 2066305A2
- Authority
- EP
- European Patent Office
- Prior art keywords
- polymer matrix
- matrix according
- poly
- polymer
- cells
- 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
Links
Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
- A61K9/00—Medicinal preparations characterised by special physical form
- A61K9/14—Particulate form, e.g. powders, Processes for size reducing of pure drugs or the resulting products, Pure drug nanoparticles
- A61K9/16—Agglomerates; Granulates; Microbeadlets ; Microspheres; Pellets; Solid products obtained by spray drying, spray freeze drying, spray congealing,(multiple) emulsion solvent evaporation or extraction
- A61K9/1605—Excipients; Inactive ingredients
- A61K9/1629—Organic macromolecular compounds
- A61K9/1641—Organic macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, e.g. polyethylene glycol, poloxamers
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
- A61K47/00—Medicinal preparations characterised by the non-active ingredients used, e.g. carriers or inert additives; Targeting or modifying agents chemically bound to the active ingredient
- A61K47/50—Medicinal preparations characterised by the non-active ingredients used, e.g. carriers or inert additives; Targeting or modifying agents chemically bound to the active ingredient the non-active ingredient being chemically bound to the active ingredient, e.g. polymer-drug conjugates
- A61K47/69—Medicinal preparations characterised by the non-active ingredients used, e.g. carriers or inert additives; Targeting or modifying agents chemically bound to the active ingredient the non-active ingredient being chemically bound to the active ingredient, e.g. polymer-drug conjugates the conjugate being characterised by physical or galenical forms, e.g. emulsion, particle, inclusion complex, stent or kit
- A61K47/6903—Medicinal preparations characterised by the non-active ingredients used, e.g. carriers or inert additives; Targeting or modifying agents chemically bound to the active ingredient the non-active ingredient being chemically bound to the active ingredient, e.g. polymer-drug conjugates the conjugate being characterised by physical or galenical forms, e.g. emulsion, particle, inclusion complex, stent or kit the form being semi-solid, e.g. an ointment, a gel, a hydrogel or a solidifying gel
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
- A61K47/00—Medicinal preparations characterised by the non-active ingredients used, e.g. carriers or inert additives; Targeting or modifying agents chemically bound to the active ingredient
- A61K47/50—Medicinal preparations characterised by the non-active ingredients used, e.g. carriers or inert additives; Targeting or modifying agents chemically bound to the active ingredient the non-active ingredient being chemically bound to the active ingredient, e.g. polymer-drug conjugates
- A61K47/69—Medicinal preparations characterised by the non-active ingredients used, e.g. carriers or inert additives; Targeting or modifying agents chemically bound to the active ingredient the non-active ingredient being chemically bound to the active ingredient, e.g. polymer-drug conjugates the conjugate being characterised by physical or galenical forms, e.g. emulsion, particle, inclusion complex, stent or kit
- A61K47/6921—Medicinal preparations characterised by the non-active ingredients used, e.g. carriers or inert additives; Targeting or modifying agents chemically bound to the active ingredient the non-active ingredient being chemically bound to the active ingredient, e.g. polymer-drug conjugates the conjugate being characterised by physical or galenical forms, e.g. emulsion, particle, inclusion complex, stent or kit the form being a particulate, a powder, an adsorbate, a bead or a sphere
- A61K47/6927—Medicinal preparations characterised by the non-active ingredients used, e.g. carriers or inert additives; Targeting or modifying agents chemically bound to the active ingredient the non-active ingredient being chemically bound to the active ingredient, e.g. polymer-drug conjugates the conjugate being characterised by physical or galenical forms, e.g. emulsion, particle, inclusion complex, stent or kit the form being a particulate, a powder, an adsorbate, a bead or a sphere the form being a solid microparticle having no hollow or gas-filled cores
- A61K47/6929—Medicinal preparations characterised by the non-active ingredients used, e.g. carriers or inert additives; Targeting or modifying agents chemically bound to the active ingredient the non-active ingredient being chemically bound to the active ingredient, e.g. polymer-drug conjugates the conjugate being characterised by physical or galenical forms, e.g. emulsion, particle, inclusion complex, stent or kit the form being a particulate, a powder, an adsorbate, a bead or a sphere the form being a solid microparticle having no hollow or gas-filled cores the form being a nanoparticle, e.g. an immuno-nanoparticle
- A61K47/6931—Medicinal preparations characterised by the non-active ingredients used, e.g. carriers or inert additives; Targeting or modifying agents chemically bound to the active ingredient the non-active ingredient being chemically bound to the active ingredient, e.g. polymer-drug conjugates the conjugate being characterised by physical or galenical forms, e.g. emulsion, particle, inclusion complex, stent or kit the form being a particulate, a powder, an adsorbate, a bead or a sphere the form being a solid microparticle having no hollow or gas-filled cores the form being a nanoparticle, e.g. an immuno-nanoparticle the material constituting the nanoparticle being a polymer
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
- A61K9/00—Medicinal preparations characterised by special physical form
- A61K9/14—Particulate form, e.g. powders, Processes for size reducing of pure drugs or the resulting products, Pure drug nanoparticles
- A61K9/16—Agglomerates; Granulates; Microbeadlets ; Microspheres; Pellets; Solid products obtained by spray drying, spray freeze drying, spray congealing,(multiple) emulsion solvent evaporation or extraction
- A61K9/167—Agglomerates; Granulates; Microbeadlets ; Microspheres; Pellets; Solid products obtained by spray drying, spray freeze drying, spray congealing,(multiple) emulsion solvent evaporation or extraction with an outer layer or coating comprising drug; with chemically bound drugs or non-active substances on their surface
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
- A61K9/00—Medicinal preparations characterised by special physical form
- A61K9/48—Preparations in capsules, e.g. of gelatin, of chocolate
- A61K9/50—Microcapsules having a gas, liquid or semi-solid filling; Solid microparticles or pellets surrounded by a distinct coating layer, e.g. coated microspheres, coated drug crystals
- A61K9/51—Nanocapsules; Nanoparticles
- A61K9/5107—Excipients; Inactive ingredients
- A61K9/513—Organic macromolecular compounds; Dendrimers
- A61K9/5138—Organic macromolecular compounds; Dendrimers obtained by reactions only involving carbon-to-carbon unsaturated bonds, e.g. polyvinyl pyrrolidone, poly(meth)acrylates
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61P—SPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
- A61P43/00—Drugs for specific purposes, not provided for in groups A61P1/00-A61P41/00
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B82—NANOTECHNOLOGY
- B82Y—SPECIFIC USES OR APPLICATIONS OF NANOSTRUCTURES; MEASUREMENT OR ANALYSIS OF NANOSTRUCTURES; MANUFACTURE OR TREATMENT OF NANOSTRUCTURES
- B82Y5/00—Nanobiotechnology or nanomedicine, e.g. protein engineering or drug delivery
Definitions
- the invention relates to a polymer matrix for the specific attachment of surface epitopes or
- Receptors of cells wherein the polymer matrix has been pretreated by molecular imprinting.
- the invention likewise relates to a process for producing such a polymer matrix.
- the polymer matrices according to the invention are used for therapeutic as well as diagnostic applications and also for the isolation of cells.
- a targeted delivery of drugs in the body is nowadays a variety of systems that are characterized by being able to absorb much drug per particle to have a biocompatible shell and thus have low toxicity. Furthermore, the rate of delivery and effect can be adjusted. There are many different ones Varieties of particles, such as micelles, inside which the drug is trapped. The shell can be chemically modified so that early degradation in the bloodstream is avoided.
- liposomes, dendrimers, hydrogels and the like are used for the transport of medicaments, whereby the medicament, depending on the type of particles, can be distributed both in the core and evenly distributed over the entire particle.
- the shell can be modified by its construction or the attachment of specific binding sites such that e.g. Cancer cells can be targeted by the particles, where they then release the drug by dissolving the particle or by chemical or physicochemical follow-up reactions.
- pH or temperature changes called.
- uptake of the particles into the target cells is possible, where they are then e.g. be resolved by enzymatic processes by the conditions prevailing in the cell. Due to the versatile possibilities of particle assembly, the particles can be precisely adapted to the specific requirements of the system to be treated.
- MIP Molecular Imprinted Polymers
- the polymer in the presence of the enantiomer or of a diastereomer of the medicament (in the case of chiral active substances) or else of structural analogues.
- the active substance itself has thus a slightly lower affinity for the polymer, whereby the release of the active ingredient is facilitated.
- Another variant is conceivable in which the polymer is embossed with a substance present at the target site which has structural similarities with the active substance; The active ingredient is thus less firmly bound in the polymer and displaced by the imprinting substance at the destination. The release of the drug may be due to diffusion,
- a polymer matrix for the specific binding of surface epitopes or receptors of cells, the polymer matrix having molecularly imprinted binding cations and epitopes or receptors specific for these surfaces.
- the present invention makes it possible to use the method of molecular imprinting to produce polymer matrices, in particular polymer particles, on which receptors, antibodies or bispecific zifische antibodies are replaced. Since many tumor-associated antigens or other epitopes or receptors that are involved in diseases or may play a role in the therapy known.
- the method according to the invention thus replaces the previous procedure known from the prior art for embossing particle surfaces in the presence of such structures, for example antigens, epitopes or receptors, or altered or reduced segments thereof.
- polymer matrices can be prepared which simulate bispecific antibodies by tailoring and attaching to specific epitopes of a transport cell prior to their introduction into the bloodstream.
- a second molecularly imprinted binding site facilitates recognition and binding to other cells, e.g. Tumor cells. This can reduce the circulation time and increase the rate of uptake at the target site if the transporting cells are chosen to respond to the affected tissue.
- the binding cavities are for immune cells, in particular T-lymphocytes, monocytes or of
- Monocyte-derived macrophages and antigen-presenting cells may be for stem cells.
- the polymer matrix preferably consists of a biocompatible and / or natural polymer.
- the biocompatible polymer is preferably selected from the group consisting of poly (meth) acrylic acid, poly (2-hydroxyethyl methacrylate), polyacrylamides, polylactides, polyglycosides, polyphosphazenes, polythioesters, polyanhydrides, poly (N-vinylpyrrolidone), Poly (hydroxyalkanoates), polyurethanes, polysiloxanes, poly (ethylene oxide), poly (vinyl alcohol), poly (ethylene), poly (methyl methacrylate), poly (ethylene glycol), polyglycolides and copolymers, blends, and mixtures thereof.
- the natural polymers are preferably selected from the group consisting of starch, cellulose, chitosan and copolymers, blends and mixtures thereof. It is also possible to use inorganic materials, for example silicon dioxide materials, in particular porous hollow particles thereof, titanium and alloys thereof; Aluminum, calcium, titanium and cobalt oxides, - hydroxyapatites, fluorapatites and other calcium phosphates, - aluminates, selenates and antimi- ates.
- the specific binding cavities may preferably be generated by the incorporation of specific epitopes, receptors or portions thereof, and subsequently removed again from the polymer matrix. This distance may be e.g. be induced by the use of hydrolytic enzymes, by heating or appropriate chemicals. It is likewise possible to generate the specific binding cavities by incorporating specific proteins, polysaccharides, fats and / or nucleic acids into the polymer matrix and subsequently hydrolyzing them by isosomal enzymes, which makes it possible to dissolve the external structure, ie the rule of the shell, comes.
- the preferred form of the polymer matrix is a particle, in which case the particle surface has the binding cavities.
- Such particles preferably have a particle size in the range of 10 to 1000 nm.
- the polymer matrix contains a magnetic or magnetizable material, for example iron-containing material such as magnetite, maghemite or hematite.
- Such particles make it possible to heat selective areas in the body to which the particles bind due to the molecularly embossed surface structuring. The heating takes place by exciting the particles with radio waves or microwaves. Depending on the extent of the induced increase in temperature, this can be used, for example, to release active substances from temperature-sensitive particles or to heat the target tissue in order to kill the corresponding cells.
- Such magnetic nanoparticles can either be obtained by known synthesis processes or are coated with a biocompatible and biodegradable polymer of, for example, lactic acid, urethane anhydrides, siloxane, vinyl alcohols, acrylamide, ethylene, ethyl 2-cyanoacrylate, gelatin, dextran or mixtures thereof.
- a biocompatible and biodegradable polymer of, for example, lactic acid, urethane anhydrides, siloxane, vinyl alcohols, acrylamide, ethylene, ethyl 2-cyanoacrylate, gelatin, dextran or mixtures thereof.
- Another variant for the preparation provides that the magnetic material is incorporated into the polymer matrix during the polymerization.
- the polymer matrix contains at least one active substance.
- the effect of eg T cells at the site of action can be enhanced by release of the active ingredient.
- cytostatic agents e.g. cytostatic agents.
- Such drug-loaded polymer matrices which may be in the form of particles, for example, can either be injected into the bloodstream or linked ex vivo to cells, eg T lymphocytes or monocytes, before these complexes are then injected into the bloodstream.
- the active ingredients are no restrictions, so both a load on the inside and on the surface is possible.
- the outer embossed surface is designed to be either time-dependent or by binding to the target epitope by a changed pH in the target tissue or in certain compartments, or by exocytosis of the acidic, cytolytic content of the target. Lysosomes after binding to the cell to be treated via the T-cell receptor becomes permeable to the drug or dissolves. A classic field of application for this is cancer therapy.
- the release of the active ingredient may generally be by diffusion, by (biological) degradation of the support material, and by swelling or swelling followed by diffusion or all together.
- the active ingredient can be released both time-controlled, by desorption, pH-dependent, by lysosomal hydrolysis and / or by magnetic interaction. In this case, a sustained release may be preferred.
- the network When using pH-sensitive protein units, the network is split at these sites, in the other microgels there is a reversible swelling or shrinking of the network, whereby the solvent contained in the microgel is released with the drug.
- the release takes place in simple core-shell particles by the slow dissolution of the medically loaded shell or, in the case of core-loaded particles, by the dissolution of the barrier shell. 4) pH dependent (enhanced by chain reaction)
- pH-sensitive particles leads to the desorption of the particle / T cell unit and subsequent re-coupling to other epitopes of the
- An alternating magnetic field leads to heating of the particles and the destruction of the polymer structure and thus to the release of the drug.
- the temperature threshold is chosen high enough to avoid premature delivery of the drug.
- the magnetic particles can be localized by magnetic detection (SQUID) in the body and allow a targeted reaction start with sufficient accumulation in the affected tissue.
- SQUID magnetic detection
- An applied magnetic field can also lead to a change in the pores in the gel, an electric field to a change in the charge in the membrane and a migration of a charged drug. In both cases, a change in the swelling behavior and thus a release of the active ingredient is effected.
- an increase in temperature and thus a release of the active substance can also be caused by ultrasound.
- the binding of the active substance to the polymer matrix there are no restrictions with regard to the binding of the active substance to the polymer matrix.
- the interactions are based on physisorption or chemisorption with the surface of the polymer matrix.
- the active ingredient is incorporated in the polymer matrix.
- hydrogels preferably have a particle size in the order of 100 to 1000 nm.
- a crosslinker for example tetraethylene glycol dimethacrylate (EDGMA) or pentaerythritol tetraacrylate (PETEA)
- a crosslinking agent for example functional groups such as acrylamide units which can be attached to the amide nitrogen via aliphatic, aromatic or heteroaromatic spacers are dissolved in a mixture of water and an organic solvent such as ethanol.
- hydrogels In the production of such hydrogels according to the invention, it is also possible by the incorporation of specific protein or polysaccharide chains, fats or nucleic acids into the polymer to form functional segments which can be hydrolyzed by lysosomal enzymes and lead to the dissolution of the microgel.
- pH-sensitive protein units can be used.
- free radical initiators for the preparation of the hydrogels are preferably 4, 4 'azobis (4-cyanopentanoic acid) or 2, 2' azobis (isobutyronitrile) is used.
- a photolytic radical start by means of UV light is possible.
- Another preferred variant provides temperature-sensitive hydrogels, for example Poly (N-alkylacrylamides) can be prepared. Their thermosensitivity can be achieved by the variation of crosslinker used and its concentration or by the addition of co-monomers. Due to the presence of magnetite or
- Maghemite during the synthesis can also produce magnetic particles that can also react to external fields.
- monomers, crosslinking agents and solvents used for the polymer matrix reference is made to claims 20 to 22.
- the cells For the production of specific cavities for the detection of certain cell types, eg T-lymphocytes, monocytes, the cells, their epitopes or regions of the epitopes are bound to a supported biopolymer surface such as gelatin or dextran.
- a supported biopolymer surface such as gelatin or dextran.
- their previously modified antibodies can be used by binding sulfhydryl or else other functional groups to the biopolymer and the abovementioned cell types via avidin-biotin complexation by means of NeutrAvidin to the functional groups.
- By modifying the antibodies, eg biotinylation it is ensured that the antibody binds to the biopolymer layer in the desired orientation.
- the biopolymer is bound on one side of a polymer stamp as a thin layer, thereby forming capillaries with a diameter of only a few micrometers.
- characteristic markers or epitopes such as the tumor marker EpCAM are fixed.
- EpCAM epitopes
- the targeted arrangement of both components on the particle can thus be achieved via the spatial arrangement during the synthesis by now in the capillaries, the molecular imprinting is done.
- the specific cavities are formed on the standing shell in the presence of the drug-loaded particles on opposite sides. By separating the polymer halves and washing with solvents, the finished particles can be extracted.
- a further preferred variant envisages that the surface epitope which produces the binding cavity in the polymer matrix is bound to a sterically demanding molecule, e.g. a polymer, or a sufficiently large particle, e.g. Gelatin particles, colloids or liposomes.
- a sterically demanding molecule e.g. a polymer
- a sufficiently large particle e.g. Gelatin particles, colloids or liposomes.
- the mutual obstruction of the epitope particles can also be produced by a high ionic charge of the epitope particles, which leads to repulsion.
- a deliberately low loading of carrier particles, even with several cavities per polymer particle can be achieved by a low concentration of carriers during the subsequent loading, provided that the number of cavities during the polymerisation of the polymer matrix is kept sufficiently low by the said methods.
- magnetically active colloids are used as epitope carriers, they can be brought to one side of the polymerization vessel or polymerization channel, ie when using the flow-through method, by applying a magnetic field.
- the cavities are formed on the opposite side of the target molecule accordingly.
- the arrangement of the cavities is non-specific.
- the antibodies of the T cells are bound to gelatin particles with sizes of more than 500 nm in order to prevent imprinting of the antibody-carrying particles.
- a further preferred variant provides that nanoscale embossed polymers are prepared in the first step, with short oligopeptide sections as freely movable or immobilized templates which are selected from the amino acids of the proteins of the epitope which are specific for the N- or C-terminal ends consist.
- These peptide-imprinted polymers which can recognize the N- or C-terminal oligopeptides and thus the target epitope with high specificity and affinity, are then intended to serve as a template for a stable prepolymerization complex with suitable functional monomers in a second step.
- these are then polymerized to more or less strongly cross-linked chains (alternatively, the functional monomers are already incorporated in chains), which are held together by the non-covalent interactions between the copolymerized functional monomers and the peptide-imprinted polymer templated and In the case of binding of the peptide-imprinted polymers to the target epitope, the polymer structure is loosened, resulting in a release of the active substance (s).
- This described system may also be additionally coupled with a MIP specific for immune cell epitopes.
- the polymer matrix according to the invention can be present in different forms depending on the production process. Which includes:
- Monomers bind to activated surfaces, e.g. Silicon or glass surfaces, and give after washing defined embossed structures.
- some advantageous fields of application should be enumerated here by way of example. These include, for example, targeting, covalent or non-covalent binding to the target, and controlled release of drugs into target tissues, which is an essential aspect of modern therapies because it can dramatically reduce drug concentrations.
- the cancer therapy in which the inhibition of receptors, e.g. epidermal growth receptor (EGFR) is an important target to suppress signal transduction.
- EGFR epidermal growth receptor
- Biler are immunogenic and more expensive to produce.
- Another advantage of the polymer matrix according to the invention over monoclonal antibodies is the significantly cheaper production.
- Another use relates to the use in diagnostics by the particles are marked with fluorescent dyes or contrast agents.
- the corresponding molecular imprinting of the surface allows interaction with specific target cells, e.g. in the body directly or in a blood sample.
- a compound of the polymer matrix according to the invention for cell isolation can also be carried out.
- the use of particles with a magnetic core and an outer molecular-imprinted surface layer thus enables isolation of the bound cells in the magnetic field.
- hollow silica nanoparticles are prepared as carrier material for the selected active ingredient and its controlled release
- the sodium silicate component Na 2 SiO 3 .9 H 2 O
- Calciumcarbo- natsuspension particle size 90 nm
- Oligopeptides contained in the N- or C-terminal sequences of the respective target epitopes and specific for the selected epitopes are contained in the N- or C-terminal sequences of the respective target epitopes and specific for the selected epitopes.
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- Health & Medical Sciences (AREA)
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Bioinformatics & Cheminformatics (AREA)
- Medicinal Chemistry (AREA)
- General Health & Medical Sciences (AREA)
- Pharmacology & Pharmacy (AREA)
- Life Sciences & Earth Sciences (AREA)
- Animal Behavior & Ethology (AREA)
- Veterinary Medicine (AREA)
- Public Health (AREA)
- Nanotechnology (AREA)
- Epidemiology (AREA)
- Crystallography & Structural Chemistry (AREA)
- General Engineering & Computer Science (AREA)
- Immunology (AREA)
- Biotechnology (AREA)
- Optics & Photonics (AREA)
- Medical Informatics (AREA)
- Molecular Biology (AREA)
- Physics & Mathematics (AREA)
- Biophysics (AREA)
- Biomedical Technology (AREA)
- Organic Chemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Preparation (AREA)
- Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications (AREA)
- Medicines Containing Material From Animals Or Micro-Organisms (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102006040772A DE102006040772A1 (de) | 2006-08-31 | 2006-08-31 | Polymermatrix, Verfahren zu deren Herstellung sowie deren Verwendung |
PCT/EP2007/007632 WO2008025563A2 (de) | 2006-08-31 | 2007-08-31 | Polymermatrix, verfahren zu deren herstellung sowie deren verwendung |
Publications (1)
Publication Number | Publication Date |
---|---|
EP2066305A2 true EP2066305A2 (de) | 2009-06-10 |
Family
ID=39003987
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP07802049A Ceased EP2066305A2 (de) | 2006-08-31 | 2007-08-31 | Polymermatrix, verfahren zu deren herstellung sowie deren verwendung |
Country Status (4)
Country | Link |
---|---|
US (1) | US20090311324A1 (de) |
EP (1) | EP2066305A2 (de) |
DE (1) | DE102006040772A1 (de) |
WO (1) | WO2008025563A2 (de) |
Families Citing this family (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102009042036B4 (de) * | 2009-09-17 | 2016-09-01 | Institut für Bioprozess- und Analysenmesstechnik e.V. | Verwendung einer lichthärtenden, biokompatiblen und biologisch abbaubaren Polymermischung |
US8877907B2 (en) | 2010-06-07 | 2014-11-04 | The Johns Hopkins University | Molecularly imprinted polymers |
US9410949B2 (en) * | 2010-12-03 | 2016-08-09 | Washington University In St. Louis | Label-free detection of renal cancer |
BR112017000813B1 (pt) | 2014-07-17 | 2021-03-16 | The Regents Of The University Of California | sistemas de gel microporoso, usos de uma pluralidade de partículas de microgel em uma solução aquosa e um agente de recozimento, de camadas de sequestrantes covalentemente estabilizados de partículas de microgel, e de um sequestrante covalentemente estabilizado de partículas de microgel com espaços intersticiais, bem como método para a preparação de partículas de microgel |
CN104479072B (zh) * | 2014-11-24 | 2016-11-09 | 常州大学 | 一种制备磁性分子印迹吸附剂的方法 |
US11931480B2 (en) | 2016-02-16 | 2024-03-19 | The Regents Of The University Of California | Microporous annealed particle gels and methods of use |
AU2017394923B2 (en) | 2016-12-29 | 2022-07-14 | Tempo Therapeutics, Inc. | Methods and systems for treating a site of a medical implant |
US20230270679A1 (en) * | 2020-10-15 | 2023-08-31 | Devid MANIGLIO | Method for the production of biocompatible nanomaterials with selective recognition capabilities and uses thereof |
CN114796153B (zh) * | 2022-03-16 | 2023-04-14 | 齐齐哈尔大学 | 一种载药型可降解分子印迹聚合物纳米粒子的制备方法 |
CN116162210B (zh) * | 2023-02-22 | 2024-06-04 | 广东海洋大学 | 一种Fe3O4表面接枝羧甲基壳聚糖红景天苷分子印迹缓释剂的制备方法及应用 |
Family Cites Families (9)
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SE8900130L (sv) * | 1989-01-16 | 1990-07-17 | Klaus Mosbach | Konceptet att med hjaelp av molekylavtrycksmetoden framstaella konstgjorda antikroppar genom imprinting av t ex antigener samt att framstaella konstgjorda entzymer genom imprintning med transition state analoger |
SE9400450A0 (en) * | 1994-02-10 | 1995-08-11 | Klaus Mosbach | Preparation and application of artificial anti-idiotypic antibodies obtained by molecular imprinting |
US5756717A (en) * | 1995-05-24 | 1998-05-26 | Perseptive Biosystems, Inc | Protein imaging |
US5728296A (en) * | 1996-03-20 | 1998-03-17 | Bio-Rad Laboratories, Inc. | Selective recognition of solutes in chromatographic media by artificially created affinity |
GB9925056D0 (en) * | 1999-10-23 | 1999-12-22 | Univ Cranfield | Preparation of biologically-active molecules by template polymerization |
SE9903958D0 (sv) * | 1999-11-02 | 1999-11-02 | Boerje Sellergren | Porous materials for selective binding or transport of molecular guests |
SE0001877D0 (sv) * | 2000-05-22 | 2000-05-22 | Klaus Mosbach | Molecular imprinting |
US6582971B1 (en) * | 2000-08-21 | 2003-06-24 | Lynntech, Inc. | Imprinting large molecular weight compounds in polymer composites |
US6660176B2 (en) * | 2001-01-24 | 2003-12-09 | Virginia Commonwealth University | Molecular imprinting of small particles, and production of small particles from solid state reactants |
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2006
- 2006-08-31 DE DE102006040772A patent/DE102006040772A1/de not_active Withdrawn
-
2007
- 2007-08-31 WO PCT/EP2007/007632 patent/WO2008025563A2/de active Application Filing
- 2007-08-31 EP EP07802049A patent/EP2066305A2/de not_active Ceased
- 2007-08-31 US US12/439,449 patent/US20090311324A1/en not_active Abandoned
Non-Patent Citations (1)
Title |
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See references of WO2008025563A2 * |
Also Published As
Publication number | Publication date |
---|---|
DE102006040772A1 (de) | 2008-03-20 |
WO2008025563A2 (de) | 2008-03-06 |
US20090311324A1 (en) | 2009-12-17 |
WO2008025563A3 (de) | 2008-04-24 |
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