Researchers at Wake Forest University reported that they have mounted an “ink-jet” type device, capable of spraying skin-cells directly on burns, onto a frame that will allow human testing. At the Translational Regenerative Medicine Forum the researchers reported on results from testing the device on mouse models, where the rate of wound healing was sped up significantly. They hope to begin human testing soon.
Binder and colleagues dissolved human skin cells from pieces of skin, separating and purifying the various cell types such as fibroblasts and keratinocytes.
They put them in a nutritious solution to make them multiply and then used a system similar to a multicolor office inkjet printer to apply first a layer of fibroblasts and then a layer of keratinocytes, which form the protective outer layer of skin.
The wound on the mouse was completely closed by three weeks, they reported. Experts say victims of massive burns usually die of infection within two weeks unless they receive skin grafts, and normal grafting often leaves severe scars.
More from Reuters: Inkjet-like device ‘prints’ cells right over burns…