Correction: Self‐Assembled Ultrahigh Aspect Ratio Silver Nanochains

Structure of Tiopronin-Protected Silver Nanoclusters in a One-Dimensional Assembly

“…After this, the ligand interactions between the carboxylic acid side groups from the Ag-thiolate structures and the tiopronin on the NCs likely directed the observed superstructure assembly. In fact, these chain-like assemblies are similar to what was observed by Shiers et al, 28 although their technique was reliant on the sonication of pre-synthesized Ag NPs; here the NCs simply assembled into the chained structures during their initial preparation.…”

“…Similar to this observation, Shiers et al observed an almost identically positioned peak at 374 nm for their 4 nm Ag NCs,28 which is also lower than the SPR range demonstrated by Huang et al (i.e., 390-396 nm). In order to determine the origin of this peak, we describe the following scenarios.…”

“…Interestingly, the distribution of the Ag-Ag 1 and Ag-Ag 2 CNs imply that the NCs are mostly composed of sulfide-type Ag, which is remarkably different from what has been proposed for previously prepared NCs/NPs protected by tiopronin. 28,31 Page 17 of 29…”

“…[25][26][27][28][29] The assembly of NCs/NPs is becoming an important concept as their spatial orientation can potentially provide new properties which can be exploited for different applications. 30 For the most part, the assemblies of NCs/NPs in colloidal solutions are driven by weak interactions between ligand molecules, and can differ depending on the type of ligand, ligand side groups, and overall ligand size.…”

“…25,27,30 Interestingly, a recent study showed that 2-mercaptopropionylglycine (commonly known as tiopronin) induced the formation of long onedimensional chains of separated Ag NPs. 28 This finding alone could have many different implications towards biomedical or plasmonic applications, although it remains to be answered how the surface structure of the individual NCs are affected by the tiopronin and what effect of the arrangement on its practical applications will be. These answers will undoubtedly provide important information that will be useful for their future applications which rely on the surface chemistry and assembly of the NCs.…”