Biomaterial based on a hydrophilic polymeric carrier
First Claim
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1. A hydrogel for the cultivation of a cell or tissue, comprising:
- a hydrophilic polymeric carrier, which comprises at least one crosslinkable hydrophilic polymer, wherein the polymer is functionalized with at least three maleimide groups which the non-functionalized polymer does not normally possess, and wherein the polymer is maleimide-serum albumin, anda crosslinking agent comprising at least two thiol groups, wherein the crosslinking agent is dithio-PEG having a molecular weight of 3 kDa, and wherein the dithio-PEG crosslinks the polymer via covalent bonding between the thiol groups of the dithio-PEG and the maleimide groups of the maleimide-serum albumin polymer.
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Abstract
The present invention relates to a biomaterial for cell or tissue culture, based on a polymeric carrier, which contains at least one crosslinkable hydrophilic polymer. The polymer is functionalized with groups that are selected from maleimide, vinylsulfonic, acrylate, alkyl halide, azirine, pyridyl, thionitrobenzene acid groups, or arylating groups. The invention relates further to a method of production of said biomaterial, and the use of particular functionalizing groups for the production of a biomaterial for the cultivation of tissue and/or cells. The biomaterial can have biofactors that exert a particular action on cells.
12 Citations
22 Claims
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1. A hydrogel for the cultivation of a cell or tissue, comprising:
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a hydrophilic polymeric carrier, which comprises at least one crosslinkable hydrophilic polymer, wherein the polymer is functionalized with at least three maleimide groups which the non-functionalized polymer does not normally possess, and wherein the polymer is maleimide-serum albumin, and a crosslinking agent comprising at least two thiol groups, wherein the crosslinking agent is dithio-PEG having a molecular weight of 3 kDa, and wherein the dithio-PEG crosslinks the polymer via covalent bonding between the thiol groups of the dithio-PEG and the maleimide groups of the maleimide-serum albumin polymer. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A hydrogel for the cultivation of a cell or tissue, comprising:
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a hydrophilic polymeric carrier, which comprises at least one crosslinkable hydrophilic polymer, wherein the polymer is functionalized with at least three maleimide groups which the non-functionalized polymer does not normally possess, and wherein the polymer is maleimide-serum albumin, a crosslinking agent comprising at least two thiol groups, wherein the crosslinking agent is dithio-PEG having a molecular weight of 3 kDa which crosslinks the polymer, and at least one biofactor, wherein the biofactor has at least one thiol group, via which the biofactor is bound to a maleimide group of the polymer. - View Dependent Claims (12, 13, 14)
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15. A hydrogel for the cultivation of a cell or tissue, comprising:
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a hydrophilic polymeric carrier, which comprises at least one crosslinkable hydrophilic polymer, wherein the polymer is functionalized with at least three maleimide groups which the non-functionalized polymer does not normally possess, and wherein the polymer is maleimide-serum albumin or maleimide-PVA (polyvinyl alcohol), and a crosslinking agent comprising at least two thiol groups, wherein the crosslinking agent has a molecular weight of 3 kDa, and wherein the crosslinking agent crosslinks the polymer via covalent bonding between the thiol groups of the crosslinking agent and the maleimide groups of the maleimide-serum albumin polymer or maleimide-PVA polymer.
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16. A hydrogel for the cultivation of a cell or tissue, comprising:
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a hydrophilic polymeric carrier, which comprises at least one crosslinkable hydrophilic polymer, wherein the polymer is functionalized with at least three maleimide groups which the non-functionalized polymer does not normally possess, and wherein the polymer is maleimide-serum albumin or maleimide-PVA, and a crosslinking agent comprising at least two thiol groups, wherein the crosslinking agent is dithio-PEG and has a molecular weight of 3 kDa, and wherein the crosslinking agent crosslinks the polymer via covalent bonding between the thiol groups of the crosslinking agent and the maleimide groups of the maleimide-serum albumin polymer or maleimide-PVA polymer. - View Dependent Claims (17, 18, 19, 20, 21)
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22. A hydrogel for the cultivation of a cell or tissue, comprising:
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a hydrophilic polymeric carrier, which comprises at least one crosslinkable hydrophilic polymer, wherein the polymer is functionalized with at least three maleimide groups which the non-functionalized polymer does not normally possess, and wherein the polymer is maleimide-serum albumin, a crosslinking agent comprising two thiol groups, wherein the crosslinking agent is dithio-PEG and has a molecular weight of 3 kDa, and wherein the crosslinking agent crosslinks the polymer via covalent bonding between the two thiol groups of the crosslinking agent and the maleimide groups of the maleimide-serum albumin polymer.
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Specification