DNA Nanostructures for Storage Architecture

This chapter surveys data storage schemes that encode information in the spatial organization and conformational states of DNA nanostructures, with a focus on scaffolded DNA origami. We review positional (pattern-based) encodings on addressable origami surfaces, topological/structural encodings in reconfigurable devices, and hybrid sequence–structure codes that cross-validate payloads with sequence indices. Writing mechanisms include selective staple inclusion/exclusion during folding, site-specific functionalization via molecular adapters, and rewritable operations using toehold-mediated strand displacement. Readout options span AFM/TEM imaging, fluorescence, nanopore signatures, and sequencing of released reporter strands, enabling different trade-offs in accuracy, speed, and throughput. Finally, we outline cost and scalability constraints (staple libraries, readout throughput) and highlight opportunities for archival storage, steganography, and hybrid molecular-electronic systems that couple structural DNA media with optical/electrical readers and strand-displacement logic.