Supracolloidal Architectures Self-Assembled in Microdroplets

Chemistry : a European Journal
Xuejiao XuChris Abell

Abstract

We demonstrate a novel method for the formation of a library of structured colloidal assemblies by exploiting the supramolecular heteroternary host-guest interaction between cucurbit[8]uril (CB[8]) and methyl viologen- and naphthalene-functionalised particles. The approach is dependent upon compartmentalisation in microdroplets generated by a microfluidic platform. Though the distribution of colloidal particles encapsulated within each microdroplet followed a Poisson distribution, tuning the concentration of the initial colloidal particle suspensions provided some level of control over the structure of the formed colloidal assemblies. This ability to direct the assembly of complementarily-functionalised colloids through a supramolecular interaction, without the need for complex modification of the colloidal surface or external stimuli, presents an exciting new approach towards the design of structured colloidal materials with the potential to produce many challenging structures.

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Citations

May 26, 2017·Langmuir : the ACS Journal of Surfaces and Colloids·Duo WeiRong Guo
Aug 31, 2019·Nanoscale·Lei Wang, Jianying Wang
May 19, 2021·Lab on a Chip·Francesco Del GiudicePier Luca Maffettone

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