Sequential Delivery of Growth Factors from Hydrolytically Degradable Silica-Based Nanoparticles for Cartilage Tissue Engineering-Juniper Publishers

Juniper Publishers-Open Access Journal of Head Neck & Spine Surgery Sequential Delivery of Growth Factors from Hydrolytically Degradable Silica-Based Nanoparticles for Cartilage Tissue Engineering Authored by Danial Barati Abstract Articular cartilage shows a very limited self-healing capability due to it's a vascular structure. It has been reported that sequential supplementation of various growth factors such as bone morphogenic protein 7 (BMP-7), transforming growth factor-beta 1 (TGF-01) and insulin-like growth factor-I (IGF-I) play critical roles in reconstruction of articular cartilage tissue. The objective of this work is to design a drug delivery system which facilitates the controlled sequential delivery growth factors to maximize the extent of chondrogenic differentiation of mesenchymal stem cells and consequently reconstruction of damaged cartilage tissue. Surface-modified silica nanoaprticles (SNs) with short segments of lactide (L) and glycolid...