Precision nanoengineering for functional self-assemblies across length scales

Abstract

As nanotechnology continues to push the boundaries across disciplines, there is an increasing need for engineering nanomaterials with atomic-level precision for self-assembly across length scales, i.e., from the nanoscale to...

A concise guide to chemical reactions of atomically precise noble metal nanoclusters

“…Ligand-protected metal nanoclusters make excellent building blocks to create self-assembled hierarchical frameworks. 192,276,277 An interesting phenomenon of self-assembly arises in Te NWs when the surface is modified with Ag 44 ( p -MBA) 30 nanocluster. The p -MBA ligand shells initiate a H-bonding interaction among themselves, leading to the formation of a bilayer assembly of NWs oriented at an angle of 81° w.r.t.…”

“…280 The patchy distribution of ligands around the metal core facilitates symmetry breaking and eventually directs a preferential interlayer H-bonding between the carboxylic acid groups of the p -MBA ligands. 276,277,279 Chakraborty et al showed hydrogen bonding-induced chemical interaction between the Ag 44 ( p -MBA) 30 nanocluster and a plasmonic gold nanorod (GNR), leading to the encapsulation of the latter (Fig. 14B), here denoted as GNR@Ag 44 .…”

New Advances in Antenna Design toward Wearable Devices Based on Nanomaterials

“…In addition, these nanoparticles are capable of increasing the antenna's gain and efficiency, while also preserving its lightweight and flexible nature. For example, in high-precision positioning systems, metal nanoparticles demonstrate particularly effective performance [22].…”

Interparticle Antigalvanic Reactions of Atomically Precise Silver Nanoclusters with Plasmonic Gold Nanoparticles: Interfacial Control of Atomic Exchange

“…The thiolate monolayer protecting the NC surface is dynamic in nature, , and the metal–ligand interface controls the atom transfer in an intercluster reaction . However, most examples of interparticle interactions are purely driven by supramolecular interactions, such as hydrogen-bonding, van der Waals, C–H···π, π···π, and electrostatic interactions where the reacting particles retain their intrinsic properties in the superstructures. ,− We recently reported the formation of a self-assembled 2D superlattice of monodispersed Ag–Au–alloy NPs by reacting polydispersed Ag NPs with [Au 25 (SR) 18 ] − NC . As studied using mass spectrometry, the reaction mechanism suggested an interparticle atomic exchange (metal–ligand species), and the metal–ligand interface was crucial for the reaction .…”