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Metal–Phenolic Supramolecular Gelation
Author(s) -
Rahim Md. Arifur,
Björnmalm Mattias,
Suma Tomoya,
Faria Matthew,
Ju Yi,
Kempe Kristian,
Müllner Markus,
Ejima Hirotaka,
Stickland Anthony D.,
Caruso Frank
Publication year - 2016
Publication title -
angewandte chemie
Language(s) - English
Resource type - Journals
eISSN - 1521-3757
pISSN - 0044-8249
DOI - 10.1002/ange.201608413
Subject(s) - supramolecular chemistry , nanotechnology , crystallization , catalysis , materials science , metal , metal ions in aqueous solution , tannic acid , chemical engineering , chemistry , combinatorial chemistry , organic chemistry , molecule , engineering
Materials assembled by coordination interactions between naturally abundant polyphenols and metals are of interest for a wide range of applications, including crystallization, catalysis, and drug delivery. Such an interest has led to the development of thin films with tunable, dynamic properties, however, creating bulk materials remains a challenge. Reported here is a class of metallogels formed by direct gelation between inexpensive, naturally abundant tannic acid and group(IV) metal ions. The metallogels exhibit diverse properties, including self‐healing and transparency, and can be doped with various materials by in situ co‐gelation. The robustness and flexibility, combined with the ease, low cost, and scalability of the coordination‐driven assembly process make these metallogels potential candidates for chemical, biomedical, and environmental applications.