When the process is complete, the flower-shaped array covers a 4-cm (1.6-in) wide area of the brain's cortex, even though it went through a hole just half that size.

An electrode inspired by soft robotics could provide less invasive brain-machine ... The implant Lacour and her colleagues built is instead inserted through a much smaller hole in the skull.

Brain Monitor Enters Hole in Skull, Deploys Flower-Shaped Electrodes It penetrates the skull...then unfolds like a flower. 5.12.23, 5:18 PM EDT / Sharon Adarlo ...