Hierarchical selfassembly

First level of self-assembly is self folding of the staples strands (short DNA oligomers) to the hexagonal building blocks. Not shown.
Second level of self-asembly is self finding of the hexagonal building blocks. Shown.
Here this goes one step further in attempting to make a sandard set of blocks for the second assembly level such that arbitrary larger structures can be built quickly and easily. Custom blocks may be more versatile but are one off solutions for specific desireed geometeries. Images from paper: "Finite Assembly of Three‐Dimensional DNA Hierarchical Nanoarchitectures through Orthogonal and Directional Bonding" (click image for sources) – Related to this are: topological atomic precision & termination control.

Up: General concept: Convergent assembly

Hierarchical selfassembly (also convergent selfassembly) is the case when
structures get self-assembled from parts that themselves where previously self-assembled.
This implies that hierarchical selfassembly is a subform of iterative self-assembly.
(Iterative self-assembly also covers repeated additions of parts of the same size.)

Note that hierarchical selfassembly is not exclusive to thermally driven self-assembly only.
Hierarchical selfassembly is also applicable to:

• non thermally driven self assembly
• positional assembly (See: hierarchical positional assembly).

Related

• Selfassembly level in self assembly
• complementary is: hierarchical positional assembly here
  covered by page convergent assembly & assembly level in positional assembly

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• iterative self-assembly