Tiny brain implant fights brain cancer with electrical therapy

Coherence Neuro, a San Francisco biotech tied to Neuralink, began testing a coin-sized brain implant by placing it temporarily in three patients undergoing brain-tumor surgery in Australia to sense tumor electrical activity and deliver mild stimulation aimed at slowing growth. The 30-minute implants, used as a safety check before longer-term use, could enable continuous monitoring and remote adjustment via an app, with plans for a permanent implant trial in glioblastoma patients next year, potentially offering a more convenient alternative to existing devices like Optune.