It is just like the difference between home-brewing ale and a big brewery. A bag of blood vessels contains in regards to a trillion red blood vessels cells. Prof David Anstee, another from the research workers, told the BBC: There’s a bioengineering challenge. To produce very much at level is quite difficult, and actually the following stage of our function is to check out methods of growing the produce. The cost is a substantial barrier to wide-scale usage of manufactured bloodstream.