Wet and Functional Adhesives from One‐Step Aqueous Self‐Assembly of Natural Amino Acids and Polyoxometalates

Sessile organisms have undergone long‐term evolution to develop the unique ability by positioning themselves on wet solid surface through secreting adhesive proteins. The present study reveals that natural amino acid monomers can also exhibit similar adhesion capacity. This kind of biomimetic adhesi...

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Bibliographic Details
Published in:Angewandte Chemie International Edition 2017-07, Vol.56 (30), p.8731-8735
Main Authors: Xu, Jing, Li, Xiaodong, Li, Jingfang, Li, Xiangyi, Li, Bao, Wang, Yang, Wu, Lixin, Li, Wen
Format: Article
Language:English
Subjects:
Adhesion
Adhesives
Amino acids
Biomimetics
Crosslinking
Electrochromism
Monomers
polyoxometalates
Polyoxometallates
Proteins
Self-assembly
wet adhesion
zwitterions
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Summary:Sessile organisms have undergone long‐term evolution to develop the unique ability by positioning themselves on wet solid surface through secreting adhesive proteins. The present study reveals that natural amino acid monomers can also exhibit similar adhesion capacity. This kind of biomimetic adhesives were created by the one‐step aqueous assembly of basic amino acids with assistance of anionic polyoxometalates. The polyoxometalates not only serve as multivalent scaffold to initiate the supramolecular cross‐linking of amino acid molecules, but also function as a redox component, bestowing the wet adhesives with electrochromic features. Perfect partner: Hydrogen bonding and electrostatic interactions between basic amino acids and polyoxometalates together with the zwitterionic self‐assembly resulted in the formation of wet adhesives with electrochromic properties. This simple and sustainable strategy opens up new opportunities for creating functional adhesives beyond nature.
ISSN:1433-7851
1521-3773
DOI:10.1002/anie.201703774