Abstract
Mica is the substrate of choice for microscopic visualization of a wide variety of intricate nanostructures. Unfortunately, the lack of a facile strategy for its modification has prevented the on‐mica assembly of nanostructures. Herein, we disclose a convenient catechol‐based linker that enables various surface‐bound metal‐free click reactions, and an easy modification of mica with DNA nanostructures and a horseradish peroxidase mimicking hemin/G‐quadruplex DNAzyme.
Catechol‐based thin films: The facile and covalent modification of mica is reported using a catechol‐based surface anchor with a flexibly linked amino group. Robustly bound, low‐roughness, and ultrathin amine‐terminated layers are obtained. This approach makes possible highly flexible surface modifications using metal‐free click reactions.