Modular super-assembly of hierarchical superstructures from monomicelle building blocks.
Modular super-assembly of hierarchical superstructures from monomicelle building blocks.
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单胶束构建模块分层上层结构的模块化超级组装
DOI:
10.1126/sciadv.abo0283
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发表时间:
2022-05-13
期刊:
影响因子:
13.6
通讯作者:
中科院分区:
文献类型:
--
作者:
Manipulating the super-assembly of polymeric building blocks still remains a great challenge due to their thermodynamic instability. Here, we report on a type of three-dimensional hierarchical core-satellite SiO2@monomicelle spherical superstructures via a previously unexplored monomicelle interfacial super-assembly route. Notably, in this superstructure, an ultrathin single layer of monomicelle subunits (~18 nm) appears in a typically hexagon-like regular discontinuous distribution (adjacent micelle distance of ~30 nm) on solid spherical interfaces (SiO2), which is difficult to achieve by conventional super-assembled methods. Besides, the number of the monomicelles on colloidal SiO2 interfaces can be quantitatively controlled (from 76 to 180). This quantitative control can be precisely manipulated by tuning the interparticle electrostatic interactions (the intermicellar electrostatic repulsion and electrostatic attractions between the monomicelle units and the SiO2 substrate). This monomicelle interfacial super-assembly strategy will enable a controllable way for building multiscale hierarchical regular micro- and/or macroscale materials and devices. Interfacial assembly of monomicelles-based hierarchical superstructures allows building multiscale hierarchical materials.
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