Here's how to do it at room temperature and pressure, using nontoxic materials.

And so we use a nontoxic virus called M13 bacteriophage, whose job is to infect bacteria.

What if they had some of the same capabilities that an abalone shell did, in terms of being able to build really exquisite structures at room temperature and room pressure, using nontoxic chemicals and adding no toxic materials back into the environment?