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Non‐Brownian Particle‐Based Materials with Microscale and Nanoscale Hierarchy
Author(s) -
Lash Melissa H.,
Jordan Jahnelle C.,
Blevins Laura C.,
Fedorchak Morgan V.,
Little Steven R.,
McCarthy Joseph J.
Publication year - 2015
Publication title -
angewandte chemie
Language(s) - English
Resource type - Journals
eISSN - 1521-3757
pISSN - 0044-8249
DOI - 10.1002/ange.201500273
Subject(s) - microscale chemistry , nanoscopic scale , particle (ecology) , nanotechnology , materials science , brownian motion , chemical physics , stoichiometry , chemistry , physics , mathematics education , oceanography , mathematics , quantum mechanics , geology
Abstract Colloidal crystals are interesting materials owing to their customizable photonic properties, high surface area, and analogy to chemical structures. The flexibility of these materials has been greatly enhanced through mixing particles with varying sizes, compositions, and surface charges. In this way, distinctive patterns or analogies to chemical stoichiometries are produced; however, to date, this body of research is limited to particles with nanoscale dimensions. A simple method is now presented for bottom‐up assembly of non‐Brownian particle mixtures to create a new class of hierarchically‐ordered materials that mimic those found in nature (both in pore distribution as well as stoichiometry). Additionally, these crystals serve as a template to create particle‐based inverted crystalline structures with customizable properties.