Non stick shoe sole.

I recently got a thrown chewing gum stuck to my shoe, and man that was real bad. I know that you all know how bad is that. I was thinking of shoes with non stick sole. But in present scenarion if we make sole non stick it would reduce the friction and would not work as a good sole. So was thinking of some thing new. I dont know but answer may lie in nano structured sole. I will have to do some kind of research or fund some for profits. (jokin, science shuld b 4 free)
But if its already done then bring it to my notice.