Application of piezoelectric cells printing on three-dimensional porous bioceramic scaffold for bone regeneration

Ming-You Shie, Hsin-Yuan Fang, Yen-Hong Lin, Alvin Kai-Xing Lee, Joyce Yu, Yi-Wen Chen

Article ID: 210
Vol 5, Issue 2.1, 2019, Pages 22-30

VIEWS - 350 (Abstract) 128 (PDF)


In recent years, the additive manufacture was popularly used in tissue engineering, as the various technologies for this field of research can be used. The most common method is extrusion, which is commonly used in many bioprinting applications, such as skin. In this study, we combined the two printing techniques; first, we use the extrusion technology to form the ceramic scaffold. Then, the stem cells were printed directly on the surface of the ceramic scaffold through a piezoelectric nozzle. We also evaluated the effects of polydopamine (PDA)-coated ceramic scaffolds for cell attachment after printing on the surface of the scaffold. In addition, we used fluorescein isothiocyanate to simulate the cell adhered on the scaffold surface after ejected by a piezoelectric nozzle. Finally, the attachment, growth, and differentiation behaviors of stem cell after printing on calcium silicate/polycaprolactone (CS/PCL) and PDACS/PCL surfaces were also evaluated. The PDACS/PCL scaffold is more hydrophilic than the original CS/PCL scaffold that provided for better cellular adhesion and proliferation. Moreover, the cell printing technology using the piezoelectric nozzle, the different cells can be accurately printed on the surface of the scaffold that provided and analyzed more information of the interaction between different cells on the material. We believe that this method may serve as a useful and effective approach for the regeneration of defective complex hard tissues in deep bone structures.


piezoelectric printing, polydopamine, bone tissue engineering, calcium silicate, polycaprolactone, drop-on-demand

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