Template‐Free Supracolloidal Self‐Assembly of Atomically Precise Gold Nanoclusters: From 2D Colloidal Crystals to Spherical Capsids

Self‐Assembly of Chiral Gold Clusters into Crystalline Nanocubes of Exceptional Optical Activity

“…[2] Such as tringent requirement severely limits application of nanoparticles prepared via self-assembly process,because different from molecular synthesis,t op repare monodisperse nanoparticles needs accurate control over nucleation and growth process that is time-and cost-consuming.A nother great challenge in the field of nanoparticle assembly is that the reported assemblies seldom exhibit properties or functions greatly different from those of the individual nanoparticles, and therefore the potential advantages of the ordered assemblies are not demonstrated, only the problems associated with self-assembly. [5] However,until now there are only rare reports on self-assembly of noble-metal clusters into ordered colloidal structures; [6] and more importantly,no new function has been achieved with the assembled structures compared with individual building blocks,a lthough the clusters themselves possess many intriguing optical, electrical, magnetic, and catalytic properties. [5] However,until now there are only rare reports on self-assembly of noble-metal clusters into ordered colloidal structures; [6] and more importantly,no new function has been achieved with the assembled structures compared with individual building blocks,a lthough the clusters themselves possess many intriguing optical, electrical, magnetic, and catalytic properties.…”

Atomically Precise Nanocluster Assemblies Encapsulating Plasmonic Gold Nanorods

“…Figure 3d (Supporting Information, Video S4) show the TEM tomography reconstruction of GNR@Au 250 (Figure 3e shows the graphical representation of the same). [6,7] As aresult, not all of the ligands are involved in H-bonding, which decreases the packing density.S imilar structures have been obtained on treating GNRs with Au 102 (Supporting Information, Figure S10). [6,7] As aresult, not all of the ligands are involved in H-bonding, which decreases the packing density.S imilar structures have been obtained on treating GNRs with Au 102 (Supporting Information, Figure S10).…”

Reversible Supracolloidal Self‐Assembly of Cobalt Nanoparticles to Hollow Capsids and Their Superstructures

“…[1] Colloidal self-assembly is more difficult to master than the molecular self-assembly owing to challenges in controlling polydispersity,directionality,and aggregation. [1][2][3][4][5][6][7][8][9][10][11][12][13][14][15][16][17][18][19][20] More specifically,related to colloidal self-assembly towards hollow structures,v iral capsids provide inspiration via the hydrogen bond-driven reversible self-assembly of shape-matching proteinic units. [1][2][3][4][5][6][7][8][9][10][11][12][13][14][15][16][17][18][19][20] More specifically,related to colloidal self-assembly towards hollow structures,v iral capsids provide inspiration via the hydrogen bond-driven reversible self-assembly of shape-matching proteinic units.…”

“…[20] Theself-assembly was driven by the ligands via carboxylic acid hydrogen bonding dimerization between the neighbouring nanoparticles.S uch as elf-assembly was attributed to the slightly nonspherical nature of the nanoparticles and the preferential alignment of hydrogen-bonding ligands into the nanoparticle equatorial plane.However,the synthesis of atomically precise nanoclusters is laborious,a nd it becomes relevant to ask whether synthetic reversible capsids can be achieved by asimple and scalable synthesis. [20] Theself-assembly was driven by the ligands via carboxylic acid hydrogen bonding dimerization between the neighbouring nanoparticles.S uch as elf-assembly was attributed to the slightly nonspherical nature of the nanoparticles and the preferential alignment of hydrogen-bonding ligands into the nanoparticle equatorial plane.However,the synthesis of atomically precise nanoclusters is laborious,a nd it becomes relevant to ask whether synthetic reversible capsids can be achieved by asimple and scalable synthesis.…”