Abstract
A synergetic effect between carbon nanotubes (CNTs) and graphene on diopside (Di) scaffolds was demonstrated. 3D network architecture in the matrix was formed through the 1D CNTs inlaid among the 2D graphene platelets (GNPs). The mechanical properties of the CNTs/GNPs/Di scaffolds were significantly improved compared with the CNTs/Di scaffolds and GNPs/Di scaffolds. In addition, the scaffolds exhibited excellent apatite-forming ability, a modest degradation rate, and stable mechanical properties in simulated body fluid (SBF). Moreover, cell culturing tests indicated that the scaffolds supported the cells attachment and proliferation. Taken together, the CNTs/GNPs/Di scaffolds offered great potential for bone tissue engineering.
Highlights
Diopside (Di, CaMgSi2O6), as a calcium magnesium silicate ceramic, possesses good bioactivity and cytocompatibility [1]
Compressive strength and fracture toughness of carbon nanotubes (CNTs)/graphene platelets (GNPs)/Di scaffolds prepared using selective laser sintering (SLS) were improved by 164% and 32%, respectively, compared with those of Di scaffolds
The reinforcing effect of the CNT/GNPs hybrids outperformed those of individual CNTs and GNPs
Summary
Diopside (Di, CaMgSi2O6), as a calcium magnesium silicate ceramic, possesses good bioactivity and cytocompatibility [1]. An effective way to overcome this deficiency is incorporating reinforcement phase into the matrix, such as nanometal oxide and carbon nanomaterials
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