DNA‐Decorated, Helically Twisted Nanoribbons: A Scaffold for the Fabrication of One‐Dimensional, Chiral, Plasmonic Nanostructures

Abstract

Crafting of chiral plasmonic nanostructures is extremely important and challenging.D NA-directed organization of nanoparticle on ac hiral template is the most appealing strategy for this purpose.Herein, we report asupramolecular approach for the design of DNA-decorated, helically twisted nanoribbons through the amphiphilicity-driven self-assembly of anew class of amphiphiles derived from DNA and hexaphenylbenzene (HPB). The ribbons are self-assembled in al amellar fashion through the hydrophobic interactions of HPB.T he transfer of molecular chirality of ssDNA into the HPB core results in the bias of one of the chiral propeller conformations for HPB and induces ah elical twist into the lamellar packing,and leads to the formation of DNAwrapped nanoribbons with M-helicity.T he potential of the ribbon to act as ar eversible template for the 1D chiral organization of plasmonic nanomaterials through DNA hybridization is demonstrated.Supportinginformation and the ORCID identification number(s) for the author(s) of this article can be found under: https://doi.

Supramolecular Chirality Synchronization in Thin Films of Plasmonic Nanocomposites

“… 30 The self-assembly driven, 31 − 34 template-based approach is particularly appealing, as it provides the ability to tailor chiral plasmonic systems. This approach has been realized by tuning the interactions between NPs and chiral DNA, 35 , 36 peptides, 37 , 38 proteins, 39 polymers, 40 , 41 silica, 42 and small molecules 43 used as templates, typically in colloidal or gel systems, and often mimicking the helical geometry of natural materials. 44 − 46 However, integration of these materials into functional devices requires accessible and scalable fabrication methods that rely on inexpensive and readily available constituents.…”

DNA‐organic molecular amphiphiles: Synthesis, self‐assembly, and hierarchical aggregates

“…[ 52 ] (D) Twisted nanoribbons formed from HPB‐DNA amphiphiles. Reproduced with permission: Copyright 2019, Wiley‐VCH [ 53 ]…”

“…Further, helically twisted nanoribbons from DNA‐hexaphenylbenzene (HPB) were formed. [ 53 ] As illustrated in Figure 5D, in the assembly process, the molecular chirality of ssDNA transferred into the HPB core and resulted in the bias of one of the chiral propeller conformations for HPB, which induced a helical twist and finally formed M‐helical nanoribbons. These DNA nanoribbons could act as a reversible template to organize 1D chiral plasmonic nanomaterials.…”

Microfluidics for the rapid and controlled preparation of organic nanotubes of bent-core based dendrimers

“…1D nanomaterials have been employed as organic scaffolds for the growth of inorganic nanoparticles 33,34 to obtain nanocomposites with enhanced mechanical properties 35 and for applications in catalysis, 36 photonics, 37 and other elds. Additionally, very recently helical liquid crystal phases have also been employed as a template for the growth of AuNPs.…”