Wireless MEAs in development
This paper describes some stuff that UCLA is doing with their neuroengineering program. Of particular interest is an ongoing project to develop networks of miniature wireless computers (“motes”) to support wireless MEA recording and stimulation (within section B, ” Improving Headstages for BCI Systems”).
The system is being built with Mica nodes, which are mesh-networking sensor motes about the size of a U.S. quarter, but I’m not sure if they are using mesh networking in this project. More details here.
As computing miniaturization advances, I expect that this system will eventually fit on something much smaller than a quarter.
The latter paper also has a survey of related work (section II), which mentions (among many others) this quarter-sized inductively powered transmitter. Inductive power means no batteries to change.