Abstract
New multifunctional, degradable, polymeric biomaterial systems would provide versatile platforms to address cell and tissue needs in both in vitro and in vivo environments. While protein-based composites or alloys are the building blocks of biological organisms, similar systems have not been largely exploited to dates to generate ad hoc biomaterials able to control and direct biological functions, by recapitulating their inherent structural and mechanical complexities. Therefore, we have recently proposed silk-tropoelastin material platforms able to conjugate a mechanically robust and durable protein, silk, to a highly flexible and biologically active protein, tropoelastin. This review focuses on the elucidation of the interactions between silk and tropoelastin in order to control material structure, properties, and ultimately functions. In addition, an approach is provided for novel material designs to provide tools to control biological outcomes via surface roughness, elasticity, and net charge for neuronal and mesenchymal stem cell-based tissue engineering.
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