[smoyer]

It's interesting that this nano-compound is made using self-assembly. What limits this process from producing other molecules? Could this be the beginning of the so-called "grey goo"? (http://amzn.to/2oG6mHR)

[RobertoG]

Self-assembly here doesn't imply reproduction.

They compose a two dimensional structure (or more) that, given the proper conditions, build itself in the desired three dimensional shape (1).

(1)- https://en.wikipedia.org/wiki/DNA_origami

[smoyer]

Ah ... so it's "self-folding". Thanks for the clarification!