Macroscopic photonic single crystals via seeded growth of DNA-coated colloids.

ABSTRACT: Photonic crystals-a class of materials whose optical properties derive from their structure in addition to their composition-can be created by self-assembling particles whose sizes are comparable to the wavelengths of visible light. Proof-of-principle studies have shown that DNA can be used to guide the self-assembly of micrometer-sized colloidal particles into fully programmable crystal structures with photonic properties in the visible spectrum. However, the extremely temperature-sensitive kinetics of micrometer-sized DNA-functionalized particles has frustrated attempts to grow large, monodisperse crystals that are required for photonic metamaterial applications. Here we describe a robust two-step protocol for self-assembling single-domain crystals that contain millions of optical-scale

SUBMITTER: Hensley A 

PROVIDER: S-EPMC10349826 | biostudies-literature | 2023 Jul

REPOSITORIES: biostudies-literature