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Size-Sorting and Pattern Formation of Nanoparticle-Loaded Micellar Superstructures in Biconcave Thin Films
ACS Nano ( IF 15.8 ) Pub Date : 2017-11-07 00:00:00 , DOI: 10.1021/acsnano.7b05541
Jan Bart ten Hove 1, 2 , Junyou Wang 1 , Matthias N. van Oosterom 2 , Fijs W. B. van Leeuwen 1, 2 , Aldrik H. Velders 1, 2, 3
Affiliation  

Biconcave thin water layers represent a template to induce organization of supramolecular structures into ordered monolayers. Here we show how micelles form extensive micrometer-sized pseudo-2D superstructures that reveal size-sorting and geometric pattern formation, as shown by cryo-transmission electron microscopy (cryoTEM). Electron-rich gold particles inside the micelles facilitate direct visualization and determination of size, composition, and ordering of the micellar assemblies over multiple length scales. Some of the patterns observed show intriguing geometric patterns for superstructures, including Fibonacci-like, double-spiral domains that also appear in, for example, sunflower seed head patterns.

中文翻译:

双凹洞薄膜中纳米颗粒胶束超结构的尺寸排序和图案形成

双凹凹薄水层代表诱导超分子结构组织成有序单层的模板。在这里,我们展示了胶束如何形成大量的微米级伪2D超结构,从而揭示了尺寸分类和几何图案的形成,如低温透射电子显微镜(cryoTEM)所示。胶束内部的富电子金颗粒有助于直接观察和确定胶束组件在多个长度尺度上的大小,组成和有序排列。观察到的某些图案显示出上层建筑的有趣几何图案,包括斐波纳契样的双螺旋结构域,这些结构也出现在例如向日葵种子的头部图案中。
更新日期:2017-11-07
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