My iPod does not detect scroll wheel or button.

About a year ago, the device was left on a table and sometime in the night, water was spilled and the nano was left overnight surrounded by it, but only a thin layer. After that, the iPod stopped turning on. A few minutes ago, I tried to see if it would work, so I plugged it in and it turns on, but the scroll wheel will not function, nor the middle button.

Also, this is probably something else but, the nano seems to shutdown after being unplugged.

I would be happy to know if it can still be salvaged or not.

Thanks!