Part I: In Vitro Models for Collagen Characterization 1. Cloning and Mutagenesis Strategies for Large Collagens Olivier Bornert and Alexander Nystr?m 2. Multi-Well Fibrillation Assay as a Tool for Analyzing Crosslinking and Stabilization of Collagen Venkat Raghavan Krishnaswamy 3. Production and Characterization of Chemically Cross-Linked Collagen Scaffolds