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Mesenchymal stem cells (MSCs) preferentially differentiate to osteogenic lineage when cultured on mechanically stiff substrates. However, collagen sponges, clinically approved scaffolds for bone regeneration, provide soft microenvironment to MSCs. Here, we demonstrate that the covalent conjugation of mechanically stiff graphene oxide (GO) flakes to three-dimensional (3D) collagen scaffolds improves...
High doses of bone morphogenetic protein-2 (BMP-2) are required for effective bone regeneration. However, these high doses often cause undesirable adverse effects, including bone overgrowth, osteolysis, and activation of the immune response, and raise treatment costs. In an effort to reduce the BMP-2 dose to avoid or diminish side effects, we investigated whether delivery of BMP-2 using graphene oxide...
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