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Abstract

Biocompatible matrices or implants on which one or more specific cell-interactive molecules ('biomolecules') can be immobilized have been developed. The matrices allow for the independent control of ligand concentration and matrix strength. In one embodiment, the matrix or implant is modified with one or more moieties capable of complexing bioconjugates prepared from one or more biomolecules. Suitable moieties include phenyl boronic acid complexing agents, such as salicylhydroxamic acid, which can complex to one or more biomolecules containing one or more phenyl boronic acid moieties. The biomolecules may be anchored to the matrix via a spacer molecule, which may allow for greater mobility of the biomolecules in aqueous solution. In one embodiment, the matrix is a hydrogel material which has been doubly-derivatized, wherein ligand concentration and matrix strength can be independently controlled. The matrices and implants can be used in vivo and in vitro applications including diagnostics, biosensors, bioprocess engineering, tissue engineering, regeneration and repair, and drug delivery.

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First Claim