Fig. 6: Solving the Hamiltonian path problem.
From: Artificial molecular communication network based on DNA nanostructures recognition
a Schematic illustration of rate-zonal centrifugation selection for separation of heptamer DNA nanostructure from mixed DNA nanostructures. b Experimental protocol of rate-zonal centrifugation. The mixed sample was loaded onto glycerin with a concentration gradient and centrifuged to collect 23 DNA fractions from top to bottom, which were subsequently analyzed by gel electrophoresis. c Gel analysis of products after centrifugation. Band 1–23 were DNA fractions, the band C represented mixed sample before centrifugation. d Large range and zoom-in AFM image of the band 15 from gel analysis. Four typical heptamer structures were marked with orange boxed and extracted to show the Hamiltonian path 0 → 1 → 2 → 3 → 4 → 5 → 6. Scale bars, 200 nm. Source data are provided as a Source Data file.
