Atomically precise nanostructure

• DNA (sriff frameworks for block precise resolution)
• RNA [note: environment dependedt folding]
• polypeptides [note: de novo design]
• foldamers > peptidomimetics > peptoids
• polyoxymetallates
• (diamond) mechanosynthesis tooltips
• moieties
• stiff organic molecules [note: sandwitches]
• further: buckyballs, metallorganic compounds

---

• artificially extended DNA (to encode unnatural amino acids) Expanded DNA alphabet provides more options for nanotechnology