Nanocompounds/assemblies

Keywords Atom mimicry Dendrimers Dendritic effects Hard/soft nanoelements Nanocompounds/assemblies Nano-periodic system Superatoms... 

These superatoms or atom mimics appear to fulfill a pivotal role as nanoscale building blocks, much as elemental atoms function at the pico- or subnanoscale level. As such, these poly(atomic) structures or entities have been classified and referred to as nano-element categories [137, 138]. Furthermore, these nanoelement categories have been shown to form stoichiometric nanocompounds or assemblies that exhibit well-defined intrinsic nano-periodic property patterns in much the same way as atomic elements and their compounds. 

From this basic list of 12 nano-element categories, a nano-element road map leading to three combinatorial libraries of nanocompounds and nano-assemblies can be envisioned, namely, [hard-hard], [hard-soft], and [soft-soft] types as illustrated in Fig. 18. These nanocompounds and nano-assembUes can be characterized analytically by the proportion of each of these 12 basic nano-elements they contain, based on their discrete bonding/assembly capacities, valencies, stoichiometries, and mass-combining ratios. Many examples of these stoichiometric nanocompounds and assemblies are already documented in the literature and are described in more detail elsewhere [137, 138]. 

As described above, a fourth feature anticipated by this new nano-periodic system was the expectation that members of these hard and soft nano-elemental categories, as well as their nanocompounds and assemblies would be expected to manifest certain well-defined nano-periodic property patterns. These property patterns were expected to be dependent on one or more of their CNDPs. Just as atomic... 

Combining Soft and Hard Nano-element Categories to Create Combinatorial Libraries of Nanocompounds and Nano-assemblies... 

Mimicry and Superatom Behavior by Forming 3D Nanoscale Lattices, Nanocompounds, and Nano-assemblies Reminiscent of Atomic Elements... 

Covalent, saturated-shell, nanocompounds (Fig. 26) can be prepared by a two-step approach involving, firstly, self-assembly of an excess of carboxylic acid-terminated dendrimers (i.e., shell reagent) around a limited amount of amine-terminated dendrimer (i.e., core reagent) in the presence of LiCl to form a... 

Supramolecular Core-Shell Nanocompound [S-6 (S-4)2i3o] Exhibiting Well-Defined Stoichiometry Self-Assembly of an [S-4]-Type Protein Subunit Shell Around an [S-6]-Type ss-RNA Core... 

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