作者
Wonhye Lee, Jason Cushing Debasitis, Vivian Kim Lee, Jong-Hwan Lee, Krisztina Fischer, Karl Edminster, Je-Kyun Park, Seung-Schik Yoo
发表日期
2009/3/1
期刊
Biomaterials
卷号
30
期号
8
页码范围
1587-1595
出版商
Elsevier
简介
We present a method to create multi-layered engineered tissue composites consisting of human skin fibroblasts and keratinocytes which mimic skin layers. Three-dimensional (3D) freeform fabrication (FF) technique, based on direct cell dispensing, was implemented using a robotic platform that prints collagen hydrogel precursor, fibroblasts and keratinocytes. A printed layer of cell-containing collagen was crosslinked by coating the layer with nebulized aqueous sodium bicarbonate. The process was repeated in layer-by-layer fashion on a planar tissue culture dish, resulting in two distinct cell layers of inner fibroblasts and outer keratinocytes. In order to demonstrate the ability to print and culture multi-layered cell–hydrogel composites on a non-planar surface for potential applications including skin wound repair, the technique was tested on a poly(dimethylsiloxane) (PDMS) mold with 3D surface contours as a target …
引用总数
20092010201120122013201420152016201720182019202020212022202320245141917243229495668765870664622