Metal–phenolic supramolecular gelation

Md Arifur Rahim, Mattias Björnmalm, Tomoya Suma, Matthew Faria, Yi Ju, Kristian Kempe, Markus Müllner, Hirotaka Ejima, Anthony D. Stickland, Frank Caruso

Research output: Contribution to journalArticleResearchpeer-review

90 Citations (Scopus)


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.

Original languageEnglish
Pages (from-to)13803-13807
Number of pages5
JournalAngewandte Chemie - International Edition
Issue number44
Publication statusPublished - 24 Oct 2016


  • chelates
  • coordination chemistry
  • gels
  • organic-inorganic hybrid composites
  • titanium

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