LONGECITY

The nanoparticles measure 500 nm across and are 2 μm long. This is comparable to the mesh size of the biopolymeric network and means that they are small enough to slip through without damaging this tissue.

 

https://physicsworld...etinal-disease/

I wonder if it will be just as easy getting the bots out of the eye (or other body tissue)? Maybe with a strong magnet.

Maybe  we can create some type of self-eating (autophagy) nanobot.