Overview
- Princeton researchers report in Nature Electronics a three-dimensional device that merges living neurons with embedded electronics to carry out computation.
- The system uses a flexible mesh of microscopic metal wires and electrodes coated in ultra-thin epoxy, and neurons grow through the scaffold for close contact.
- The embedded array recorded and stimulated activity across multiple layers and stayed stable for more than six months as network connections evolved.
- After repeated training pulses and algorithmic readout, the biological network learned to distinguish both spatial sources and temporal patterns of electrical signals.
- The team frames the platform as a step toward ultra–low-power computing and a tool for studying brain development and disease, with real-world uses still requiring major scaling and validation.