Abstract
Superparamagnetic iron oxide nanoparticles (IONPs) are promising bioactive additives to fabricate magnetic scaffolds for bone tissue engineering. Their similarity to macromolecules and many unique properties indicate that functional nanoparticles have promising potential for the modification and improvement of traditional scaffolds to obtain excellent biocompatibility, tunable stiffness, physical sensing, and stimulus-response capabilities. Furthermore, magnetic stimulations from static magnetic fields (SMFs) and electromagnetic fields (EMFs) can also substantially improve bone repair and regeneration. Therefore, the objectives of this study were to: (1) develop a novel magnetic IONP incorporated scaffold for bone tissue engineering, and (2) investigate the effects of IONP-incorporation and SMF application on the proliferation, osteogenic differentiation and bone mineral synthesis of stem cells like human dental pulp stem cells (hDPSCs) seeded on IONP-incorporated scaffold for the first time. Our results demonstrate that the novel CPC functionalized with IONPs is promising to promote osteoinduction and bone regeneration.
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