Solvent-free fabrication of carbon nanotube/silk fibroin electrospun matrices for enhancing cardiomyocyte functionalities
2020
Cardiac tissue engineering holds great potential in regenerating functional cardiac tissues for various applications. The major strategy is to design scaffolds recapitulating the native cardiac microenvironment to enhance cell and tissue functionalities. Among various biomaterial systems, nanofibrous matrices with aligned morphologies and enhanced conductivity incline to induce the formation of oriented engineered cardiac tissues with enhanced functionalities. The challenge is to functionalize the scaffolds with conductive additives without influencing their biocompatibility. In this study, we developed a fully aqueous process for the fabrication of conductive carbon nanotube/silk fibroin (CNT/silk) electrospun scaffolds. The carbon nanotubes are well dispersed within the nanofibers, providing the scaffolds with enhanced conductivity and excellent biocompatibility for the culture of neonatal rat cardiomyocytes with improved cell spreading and enhanced expression of cardiac-specific proteins. Moreover, the...
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