Nanomaterial stimulates and regrows severed nerves like sci-fi tech

Title is misleading as far as I can tell - this is a gap filler, not regrowth. Anything like this probably wears out in weeks at best too.

Any time you read an article like this, always remember the context - we can't re-attach a nail to a nail bed, grow a hair follicle, repair enamel, repair arteries, or make cartilage regrow. Anything we can do is generally a mechanical intervention (i.e. the few organ transplants we can do with good outcomes).