Existing solutions often involve stiff, invasive tools that can cause major damage to sensitive brain tissue.

Robeaute initially plans to use its bots to collect tissue samples for biopsies.

Robeaute was founded by Bertrand Duplat and Joana Cartocci.

Robots the size of rice grains aim to revolutionize brain surgery

But when his mother was diagnosed with an inoperable brain tumor, he shifted his focus.

Several advances in electronics, robotics, and microfrabrication were necessary to build the tiny bot.

Cartocci told Fortune thatneurosurgeonshave been among their biggest supporters, adding that the medical community response was overwhelming.