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DNA molecules do not arrange themselves.

Light-Induced Switching of Tunable Single-Molecule Junctions Reported as: Tiniest circuits: Light-controlled molecule switching Excerpt: One area of research focus in Dresden is what is known as self-organization. “DNA molecules are, for instance, able to arrange themselves into structures without any outside assistance. If we succeed in constructing logical switches from self-organizing molecules, then computers of DNA molecules do not arrange themselves.