For most of our use-cases, we can probably do even better, since we don't necessarily want or require the product to remain "alive." For example, dental enamel

For most of our use-cases, we can probably do even better, since we don't necessarily want or require the product to remain "alive." For example, dental enamel is a really neat crystalline material, and a biological process makes it before withdrawing to use it as a shield.