Xconomy -- Biotech executives were on the prowl a couple weeks ago in San Francisco, many of them urgently seeking tens or hundreds of millions of dollars from Wall Street. But one of the fun, offbeat ideas I encountered during my trip was from a Kalamazoo, MI, entrepreneur seeking to nail down his first $5 million for a startup called Axonia Medical. This company is betting it can treat nerve damage in arms and legs without touching an embryonic stem cell.