Related Experiment Video
Updated: Jul 22, 2026

Electrospun Nanofiber Scaffolds with Gradations in Fiber Organization
Published on: April 19, 2015
Enhancing bone tissue engineering with polyacrylonitrile electrospun scaffolds and graphene quantum dots: A
Siavash Sehat-Kashani1, Hadi Naddaf1, Elham Hoveizi2
1Department of Clinical Sciences, Faculty of Veterinary, Shahid Chamran University of Ahvaz, Ahvaz, Iran.
Introduction:
In this study, we utilized human endometrial mesenchymal stem cells (EnMSCs), along with a novel fibrous nanocomposite scaffold made of polyacrylonitrile/metal-organic-framework (PAN/MOF-Cu) for bone tissue engineering. Additionally, we investigated the impact of graphene quantum dots (GQDs) as a stimulant for promoting osteogenic regeneration.
Methods:
To assess our approach's effectiveness, four groups of rats were evaluated for the extent of bone tissue regeneration in their calvarial defects, 10 weeks post-surgery. Histomorphometry studies used various tissue staining methods, such as H&E and Masson's trichrome. Additionally, protein structures were extracted from the Protein Databank (PDB) and subjected to Molecular Docking using Molegro software.
Results:
The findings revealed that the PAN/MOF-Cu scaffold possesses remarkable characteristics conducive to cell adhesion and growth. Furthermore, histomorphometry analysis confirmed the osteoconductive properties of PAN/MOF-Cu, suggesting its significant potential for application in critical-sized bone defects, particularly when combined with EnMSCs. Additionally, the implantation of scaffold/EnMSCs/GQDs demonstrated a greater enhancement in forming new bone relative to the other experimental groups. This suggests that the presence of GQDs significantly enhances the process of bone repair. Docking results further indicated that GQDs can potentially act as agonists to ER, FGFR3, TGF-βR, and frizzled-8 during osteogenesis.
Conclusion:
These findings provide further confirmation that the nanocomposite/cells/GQDs combination serves as an excellent platform for bone tissue engineering.
More Related Videos
09:35Distinctive Capillary Action by Micro-channels in Bone-like Templates can Enhance Recruitment of Cells for Restoration of Large Bony Defect
Published on: September 11, 2015
07:14Synthesis of Graphene-Hydroxyapatite Nanocomposites for Potential Use in Bone Tissue Engineering
Published on: July 27, 2022
Related Concept Videos
Carbon Skeletons
Bone Structure
Bone Remodeling
Fractures: Bone Repair
Minor fractures with no bone displacement are treated by immobilizing the fractured bone using a cast or splint. However, in the case of fractures with displaced bones, the broken bones are repositioned before immobilization to ensure successful healing without deformation and loss of function. The realignment of fractured bone ends is performed through a process called reduction. If the procedure...
Bone Remodeling and Repair