Bioengineering Skin
An article from Innovations Report goes into some detail on efforts by tissue engineers to grow new skin: "Our goal is to bioengineer an artificial skin scaffold that promotes tissue regeneration and even directs cell growth for hair follicles and sweat glands so that the new skin would look and feel like normal skin. ... Ultimately, we are interested in understanding and finding the right mixture of biological and synthetic materials that will yield the best results for wound healing and tissue regeneration and will significantly increase the quality of life for severe burn victims and medical patients." Like all matters biological, it is much more complex than you might at first imagine.
Link: http://www.innovations-report.de/html/berichte/biowissenschaften_chemie/bericht-38471.html