3D Bioplotter Research Papers

Displaying all papers by X. Qi (2 results)

Three dimensional printing of calcium sulfate and mesoporous bioactive glass scaffolds for improving bone regeneration in vitro and in vivo

Scientific Reports 2017 Volume 7, Article number: 42556

In the clinic, bone defects resulting from infections, trauma, surgical resection and genetic malformations remain a significant challenge. In the field of bone tissue engineering, three-dimensional (3D) scaffolds are promising for the treatment of bone defects. In this study, calcium sulfate hydrate (CSH)/mesoporous bioactive glass (MBG) scaffolds were successfully fabricated using a 3D printing technique, which had a regular and uniform square macroporous structure, high porosity and excellent apatite mineralization ability. Human bone marrow-derived mesenchymal stem cells (hBMSCs) were cultured on scaffolds to evaluate hBMSC attachment, proliferation and osteogenesis-related gene expression. Critical-sized rat calvarial defects were applied to investigate the…

Three-dimensional printing of tricalcium silicate/mesoporous bioactive glass cement scaffolds for bone regeneration

Journal of Materials Chemistry B 2016 Volume 4, Pages 7452-7463

Bone defects, particularly large bone defects resulting from infections, trauma, surgical resection or genetic malformations, maintain a significant challenge for clinicians. In this study, the tricalcium silicate/mesoporous bioactive glass (C3S/MBG) cement scaffolds were successfully fabricated for the first time by 3D printing with a curing process, which combined the hydraulicity of C3S with the excellent biological property of MBG together. The C3S/MBG scaffolds exhibited 3D interconnected macropores (~400μm), high porosity (~70%), enhanced mechanical strength (>12MPa) and excellent apatite mineralization ability. Human bone marrow-derived mesenchymal stem cells (hBMSCs) were cultured on the scaffolds to evaluate their cell responses, and the results…