Colloidal Rings by Site-Selective Growth on Patchy Colloidal Disc Templates,Angewandte Chemie International Edition

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Colloidal Rings by Site-Selective Growth on Patchy Colloidal Disc Templates
Angewandte Chemie International Edition ( IF 16.1 ) Pub Date : 2017-07-17 06:55:36 , DOI: 10.1002/anie.201704541
Yuanyuan Wu _{1,

2} , Zhang Luo _{1,

2} , Bing Liu _{1,

2} , Zhenzhong Yang ₁

Affiliation

Anisotropic colloidal building blocks are quite attractive as they enable the self-assembly towards new materials with designated hierarchical structures. Although many advances have been achieved in colloidal synthetic methodology, synthesis of colloidal rings with low polydispersity and on a large scale remains a challenge. To address this issue we introduce a new site-selective growth strategy, which relies on using patchy particles. For example, by using patchy discs as templates, silica can selectively be grown on only side surfaces, resulting in formation of silica rings. We demonstrate that shape parameters are tunable and find that these silica rings can be used as secondary template to synthesize other types of rings. This method for synthesizing ring-like colloids provides possibilities for studying their self-assembly and associated phase transitions, and this patchy particles template strategy paves a new route for fabricating other new colloidal particles.

中文翻译：

通过斑点选择性胶体盘模板上的位点选择性生长的胶体环。

各向异性胶体构建基块非常吸引人，因为它们可以自动组装成具有指定层次结构的新材料。尽管在胶体合成方法中已经取得了许多进展，但是合成具有低多分散性和大规模的胶体环仍然是一个挑战。为了解决这个问题，我们引入了一种新的站点选择性生长策略，该策略依赖于使用斑片状颗粒。例如，通过使用补丁光盘作为模板，可以仅在侧表面上选择性地生长二氧化硅，从而形成二氧化硅环。我们证明形状参数是可调的，并且发现这些二氧化硅环可以用作合成其他类型环的辅助模板。

更新日期：2017-07-17

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