Scaffold Material Biomimetic Properties Examples Tissue Engineering Applications
Collagen - Natural polymer, found in skin, cartilage, and bone - Integrin binding sites for enhanced cell adhesion - Biodegradable and non-toxic - Excellagen® - Hydrogels - Microribbons - Cross-linkable and injectable for wound repair - Promote reepithelialization and granulation tissue growth in diabetic ulcers - Tunable for tissue-specific cues
Hyaluronic Acid - GAG found in synovial fluid and connective tissue ECM - Excellent biocompatibility and biodegradability - Hydrogels - HYALONECT® - Inherently reduces inflammatory response and promotes angiogenesis in tissues - HA-based mesh promotes bone and periosteum regeneration
Fibrin - Glycoprotein responsible for hemostasis during injury - Natural provisional ECM to sequester growth factors and cells - QuikClot® - Fibrant Sealant Dressing - Hydrogels - Made from autologous blood to prevent immunoresponse - Minimally-invasive delivery method for MSCs into bone defects
Chitosan - Naturally occurring polysaccharide with cell-adhesive qualities - Structural resemblance to many crucial GAGs in cartilage - Hydrogels - Antibiotic-loaded bar - High porosity, 3D structure, and GAG content ideal for chondrogenesis - Intrinsic antibiotic qualities to prevent infection of tissue
Decellularized ECM - Contains crucial proteins, GAGs, and structural components - Biocompatible and biodegradable - Graftjackt® - in vitro engineering of scaffolds for autologous applications - Improve healing of chronic diabetic foot ulcers
Table 1: Biomimetic scaffolds for skin and skeletal tissue engineering.