Quantification of Strand Accessibility in Biostable DNA Origami with Single-Staple Resolution.

ABSTRACT: DNA-based nanostructures are actively gaining interest as tools for biomedical and therapeutic applications following the recent development of protective coating strategies prolonging structural integrity in physiological conditions. For tailored biological action, these nanostructures are often functionalized with targeting or imaging labels using DNA base pairing. Only if these labels are accessible on the structure's surface will they be able to interact with their intended biological target. However, the accessibility of functional sites for different geometries and environments, specifically after the application of a protective coating, is currently not known. Here, we assay this accessibility on the level of single handle strands with two- and three-dimensional resolution using DNA

SUBMITTER: Eklund AS 

PROVIDER: S-EPMC8613912 | biostudies-literature | 2021 Nov

REPOSITORIES: biostudies-literature