Viral capsids are an even simpler example of self-assembly. In many types of virus, the individual subunits spontaneously piece together to form the capsid in a

Viral capsids are an even simpler example of self-assembly. In many types of virus, the individual subunits spontaneously piece together to form the capsid in an entirely passive process driven only by Brownian motion, and defined by the chemical composition of the subunits and the solution they are contained in. A decent illustration of this concept: https://www.youtube.com/watch?v=X-8MP7g8XOE https://www.youtube.com/watch?v=X-8MP7g8XOE