Modifizierte Gelatine, Verfahren zu ihrer Herstellung und Verwendung

Die vorliegende Erfindung betrifft ein Verfahren zur Herstellung einer zwei- oder dreidimensionalen Struktur auf einem Substrat, die Verwendung eines Gelatinederivats in diesem Verfahren sowie das Gelatinederivat an sich.

Producing a two- or three-dimensional structure on a substrate, comprises: (a) applying at least a gelatin derivative present in a liquid medium to the substrate and (b) fixing the gelatin derivative applied in step (a) by intermolecular cross-linking of the gelatin derivative. The gelatin derivative comprises at least one artificially introduced non-crosslinking functional group and at least one artificially introduced crosslinking group. At least one artificially introduced non-crosslinking functional group is e.g. halogen, alkyl-, heteroarylalkyl- group. Producing a two- or three-dimensional structure on a substrate, comprises: (a) applying at least a gelatin derivative present in a liquid medium to the substrate and (b) fixing the gelatin derivative applied in step (a) by intermolecular cross-linking the gelatin derivative. The gelatin derivative comprises at least one artificially introduced non-crosslinking functional group and at least one artificially introduced crosslinking group. At least one artificially introduced non-crosslinking functional group is halogen, alkyl-, haloalkyl-, heteroalkyl-, cycloalkyl-, heterocycloalkyl-, aryl-, heteroaryl-, arylalkyl-, heteroarylalkyl-, arylheteroalkyl-, alkoxy-, alkoxyalkyl-, alkoxyaryl-group (all preferred), aldehyde- or acyl group. At least one artificially introduced crosslinking group comprises maleimide group and carbon-carbon double bond, or azide group, carbon-carbon double bond, carbon-carbon triple bond, aldehyde, ketone, imine group, thioketone thiol group, carbon-nitrogen triple bond and diene group (preffered). Independent claims are also included for: (1) a gelatin derivative comprising at least one artificially introduced non-crosslinking functional group and at least one artificially introduced crosslinking group; and (2) a two- or three-dimensional structure produced by the above mentioned method.