The body is pretty good at healing itself, though more severe wounds can require bandages or stitches. But researchers publishing in ACS Applied Materials & Interfaces have developed a wound-healing ink that can actively encourage the body to heal by exposing the cut to immune-system vesicles. The ink can be spread into a cut of any shape using a 3D-printing pen, and in mice, the technology nearly completely repaired wounds in just 12 days.
When the skin is cut or torn, the body’s natural “construction crew” kicks in to fix it back up—clearing out any bacterial invaders, regrowing broken blo...
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