Tissue? Tissue.

Today I rewatched a video about this thing that is about some sort of applicable tissue-type thing that's made of silk, or what used to be.  It dissolves in water and can be used to safely and efficiently apply drugs to specific places.  I think that it was pretty neat.  I suppose that it can relate to the way that tissues work the same way that each tissue has to change for wherever they are.  The same way tissues have to change in order to change what they do.