Neural mesh electronics
Neural mesh electronics is an open, macroporous network of ultra-thin flexible electronics whose feature sizes, porosity, and bending stiffness are engineered to approximate those of the neural tissue it interpenetrates. Because the mesh is mostly empty space, neurons and their processes and vasculature can grow through it rather than being walled off around it, producing an interface that can become structurally seamless with the tissue.
The mesh is typically delivered by syringe injection: it is rolled up inside a fine needle, injected, and unfurls in place. Reports show minimal chronic immune response and the ability to track the same putative neurons for many months, since the tissue does not perceive a discrete rigid foreign body. The tradeoffs are engineering ones — limited channel count and addressability, and long, delicate lead-out routing from the injected mesh to external electronics.
Injected mesh electronics has tracked the same neurons over many months, with post-mortem immunostaining showing neuron and glia densities near the mesh comparable to those in undisturbed tissue.
The design goal is immune stealth: make the device mechanically and geometrically indistinguishable from neuropil.