These figures show pre- and post-fabricated wireless neural probes chip micrograph. Source: Purdue University Brain-computer interfaces using electrodes to obtain and deliver signals require electric wires to effect connectivity, posing risk for infection and other safety issues. Wireless technologies offer promise, but most approaches require a battery or another source of energy to power an implant to beam data back and forth from deep within the brain.
Purdue University researchers have developed an electronic chip that operates without on-board batteries. The wireless neural interface system is powered by externally delivered electromagnetic waves via an on-chip antenna similar to the technology used to wirelessly charge smartphones. The implant was produced from a commercially available electronic chip that was modified to include microelectrodes.
The electronic chip integrates with neural sensors and uses a remotely powered electronic system to wirelessly transmit brain signals to a computer. The device provides support for people with neural deficiencies and those with severed nerves.
