I am wondering the same. The spikes on the dragonfly wings are on the outside, this is (at least in his article) promoted as being used for implants. One of th

I am wondering the same. The spikes on the dragonfly wings are on the outside, this is (at least in his article) promoted as being used for implants. One of the main qualities of implant materials is low bio-reactivity. I don't know if this fits the proper definition, but at least loosely speaking, tearing cells apart sounds like quite a bit of bio-reactivity. I am especially wondering because implants are always encapsulated by fibrous tissue (similar to scars), in order to protect the body from the "foreign object".