Improving 3-D Printing By Copying Nature
An anonymous reader writes "Biologist Janine Benyus is excited about the 3-D printer revolution and she thinks it can be improved by modeling natural processes. 'Benyus, who wrote Biomimicry: Innovation Inspired by Nature and co-founded the institute Biomimicry 3.8, would like to see a transition in manufacturing—from big, smoke-belching factories to small, clean desktop printers. The key to making it truly sustainable, she said, lies in mimicking how a natural ecosystem functions. "Nature uses life-friendly chemistry, which is nontoxic and water-based, and which does not require high heat," said Benyus. In contrast, most of the products people use today have been forged in industrial-size furnaces, with a plethora of toxic solvents. A potato chip bag may seem like a simple item, but it is actually made up of several thin layers of different materials, one to make it strong, one to make it airtight, and so on.'"
Chem Eng, Enviro specialty here. Biological processes are sweet because they run at/near SATP (room temp and pressure) and generally use water (cheap, non-toxic) as a solvent. Typical industrial processing techniques use harsh-assed chemicals (safety + environmental risk) and a lot of energy (usually heat). That being said, biological systems are typically inefficient as shit and can't produce the same output / rector volume but are much cheaper. SO if you can create a culture that's particularly suited to what you want it to do (E. Coli is often used) you can recreate an expensive process that involves toxic (read: expensive to dispose of) with a cheap process with a disposal cost that is orders of magnitude lower than the traditional solution.
So yeah, that's why biological processes (low temp, nontoxic materials) are sweet. They cost less.