Printing living tissue

[NHE]

Printing Evolves: An Inkjet for Living Tissue
http://online.wsj.com/article/SB1000087 ... 51098.html

Using a process similar to inkjet printing, scientists are developing ways to make cartilage, blood vessels, organs, skin grafts and other tissues. Bioprinters emit cultured stem cells in three-dimensional structures, layer by layer. Scientists have yet to print capillary networks that keep normal tissue alive, and the engineered tissues are often not as strong as natural tissue.