Osteogenic and angiogenic potentials of the cell-laden hydrogel/mussel-inspired calcium silicate complex hierarchical porous scaffold fabricated by 3D bioprinting

2018 ◽  
Vol 91 ◽  
pp. 679-687 ◽  
Author(s):  
Yi-Wen Chen ◽  
Yu-Fang Shen ◽  
Chia-Che Ho ◽  
Joyce Yu ◽  
Yuan-Haw Andrew Wu ◽  
...  
2017 ◽  
Vol 23 (1) ◽  
pp. 64-69 ◽  
Author(s):  
Huanbao Liu ◽  
Huixing Zhou ◽  
Haiming Lan ◽  
Fu Liu ◽  
Xuhan Wang

3D bioprinting is an emerging technology that drives us to construct the complicated tissues and organs consisting of various materials and cells, which has been in widespread use in tissue engineering and organ regeneration. However, the protection and accurate distribution of cells are the most urgent problems to achieve tissue and organ reconstruction. In this article, a multinozzle multichannel temperature deposition and manufacturing (MTDM) system is proposed to fabricate a blood vessel with heterogeneous materials and gradient hierarchical porous structures, which enables not only the reconstruction of a blood vessel with an accurate 3D model structure but also the capacity to distribute bioactive materials such as growth factors, nutrient substance, and so on. In addition, a coaxial focusing nozzle is proposed and designed to extrude the biomaterial and encapsulation material, which can protect the cell from damage. In the MTDM system, the tubular structure of a blood vessel was successfully fabricated with the different biomaterials, which proved that the MTDM system has a potential application prospect in tissue engineering and organ regeneration.


2018 ◽  
Vol 6 (3) ◽  
pp. 562-574 ◽  
Author(s):  
Wei Long Ng ◽  
Min Hao Goh ◽  
Wai Yee Yeong ◽  
May Win Naing

3D bioprinting of hierarchical porous structures for tissue engineering.


Biomedicines ◽  
2021 ◽  
Vol 9 (8) ◽  
pp. 907
Author(s):  
Cheng-Yu Chen ◽  
Ming-You Shie ◽  
Alvin Kai-Xing Lee ◽  
Yun-Ting Chou ◽  
Chun Chiang ◽  
...  

Bone defects are commonly found in the elderly and athletic population due to systemic diseases such as osteoporosis and trauma. Bone scaffolds have since been developed to enhance bone regeneration by acting as a biological extracellular scaffold for cells. The main advantage of a bone scaffold lies in its ability to provide various degrees of structural support and growth factors for cellular activities. Therefore, we designed a 3D porous scaffold that can not only provide sufficient mechanical properties but also carry drugs and promote cell viability. Ginsenoside Rb1 (GR) is an extract from panax ginseng, which has been used for bone regeneration and repair since ancient Chinese history. In this study, we fabricated scaffolds using various concentrations of GR with mesoporous calcium silicate/calcium sulfate (MSCS) and investigated the scaffold’s physical and chemical characteristic properties. PrestoBlue, F-actin staining, and ELISA were used to demonstrate the effect of the GR-contained MSCS scaffold on cell proliferation, morphology, and expression of the specific osteogenic-related protein of human dental pulp stem cells (hDPSCs). According to our data, hDPSCs cultivated in GR-contained MSCS scaffold had preferable abilities of proliferation and higher expression of the osteogenic-related protein and could effectively inhibit inflammation. Finally, in vivo performance was assessed using histological results that revealed the GR-contained MSCS scaffolds were able to further achieve more effective hard tissue regeneration than has been the case in the past. Taken together, this study demonstrated that a GR-containing MSCS 3D scaffold could be used as a potential alternative for future bone tissue engineering studies and has good potential for clinical use.


2020 ◽  
Vol 20 ◽  
pp. 100779
Author(s):  
Yang Liu ◽  
Lingyan Cao ◽  
Shuang Zhang ◽  
Luli Ji ◽  
Jing Wang ◽  
...  

Bioprinting ◽  
2019 ◽  
Vol 13 ◽  
pp. e00042 ◽  
Author(s):  
Vyacheslav Shulunov

Author(s):  
Rosa M. Guerra Bretaña ◽  
Lídia A. de Sena ◽  
Marilia S. Beltrão ◽  
Rodrigo F. Resende ◽  
Suelen C. Sartoretto ◽  
...  

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