The main hurdles have been just getting multiple cell types to grow and work in harmony and spurring formation of the blood vessels required to nourish tissues more than a few hundredths of a millimeter thick.
The main hurdles have been just getting multiple cell types to grow and work in harmony and spurring formation of the blood vessels required to nourish tissues more than a few hundredths of a millimeter thick.
组织工程面临的最大障碍，是让多种类型的细胞生长并和谐运作，以及刺激血管的形成来滋养数十微米厚的组织。