Recent cell printing systems for tissue engineering

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Hyeongjin Lee, YoungWon Koo, Miji Yeo, SuHon Kim, Geun Hyung Kim


Three-dimensional (3D) printing in tissue engineering has been studied for the bio mimicry of the structures of human tissues and organs. Now it is being applied to 3D cell printing, which can position cells and biomaterials, such as growth factors, at desired positions in the 3D space. However, there are some challenges of 3D cell printing, such as cell damage during the printing process and the inability to produce a porous 3D shape owing to the embedding of cells in the hydrogel-based printing ink, which should be biocompatible, biodegradable, and non-toxic, etc. Therefore, researchers have been studying ways to balance or enhance the post-print cell viability and the print-ability of 3D cell printing technologies by accommodating several mechanical, electrical, and chemical based systems. In this mini-review, several common 3D cell printing methods and their modified applications are introduced for overcoming deficiencies of the cell printing process.


bioink; cell-printing; tissue engineering

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Copyright (c) 2017 Hyeongjin Lee, YoungWon Koo, Miji Yeo, SuHon Kim, Geun Hyung Kim

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