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Photoluminescent functionalized carbon quantum dots loaded electroactive Silk fibroin/PLA nanofibrous bioactive scaffolds for cardiac tissue engineering

Highlights•Constructed Modif-CQDs into the Silk fibroin/PLA nanofibrous bioactive scaffolds.•The scaffolds exhibited highly porous improved mechanical abilities.•The cell viability and cardiomyocytes proliferation were significantly greater with scaffolds.•The incorporated CQD nanoparticles scaffolds were enhances the expression of cardiac-marker genes.AbstractTissue engineering and stem cell rehabilitation are the hopeful aspects that are being investigated for the management of Myocardial Infarction (MI); cardiac patches have been used to start myocardial rejuvenation. In this study, we engineered p-phenylenediamine surface functionalized (modif-CQD) into the Silk fibroin/PLA (SF/PLA) nanofibrous bioactive scaffolds with improved physico-chemical abilities, mechanical and cytocompatibility to cardiomyocytes. The micrograph results visualized the morphological improved spherical modif-CQD have been equivalently spread throughout the SF/PLA bioactive cardiac scaffolds. The fabricated [email protected]/PLA nanofibrous bioactive scaffolds were highly porous with fully consistent pores; effectively improved young modulus and swelling asset for the suitability and effective implantation efficacy. The scaffolds were prepared with rat cardiomyocytes and cultured for up to 7 days, without electrical incentive. After 7 days of culture, the scaffold pores all over the construct volume were overflowing with cardiomyocytes. The metabolic activity and viability of the cardiomyocytes in [email protected]/PLA scaffolds were significantly higher than cardiomyocytes in Silk fibroin /PLA scaffolds. The integration of CQD also influenced greatly and increases the expression of cardiac-marker genes. The results of the present investigations evidently recommended that well-organized cardiac nanofibrous scaffold with greater cardiac related mechanical abilities and biocompatibilities for cardiac tissue engineering and nursing care applications.Graphical AbstractDownload : Download high-res image (87KB)Download : Download full-size image

Photoluminescent های کوانتومی عامل دار شده روی نانولوله های کوانتومی اثر گذار ابریشم / PLA nanofibrous bioactive برای مهندسی بافت قلب

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