For seminal contributions to the development and understanding of the formation and structure of biodegradable materials towards tissue regeneration and drug delivery therapies. For application of engineering principles in the development of innovative biomaterial technologies that have transformed human health including the synthesis of elastomers for a new class of approved vascular sealants, the identification of hydrogels that enable controlled release of microRNA for treatment of heart attacks, and the advancement of novel hydrogels and sealants to treat cartilage damage. For transformative contributions to the development of self-healing and shear-thinning hydrogels and lithographic approaches that have advanced 3D printing.