One of the most novel ideas I’ve ever heard is using transgenic animals to produce biomaterials or specific molecules. The concept is simple, splice a gene into an animal that can then produce the protein from that gene. Thus you can end up having spider silk in goats milk or pigs blood filled with therapeutic protein. There’s been a lot of promising research but nothing has been approved for active use in humans until now: FDA oks transgenic animal produced drug. Hopefully this will open up avenues for therapies for people who don’t produce a certain protein naturally. Think hemophilia or other genetic disorders.