Affiliation:
1. State Key Laboratory of Polymer Physics and Chemistry Changchun Institute of Applied Chemistry Chinese Academy of Sciences Changchun 130022 China
2. School of Applied Chemistry and Engineering University of Science and Technology of China Hefei 230026 China
Abstract
AbstractAdhesives with strong underwater adhesion performance are urgently needed in diverse areas. However, designing adhesives with long‐term stability to diverse materials underwater in a facile way is challenging. Here, inspired by aquatic diatoms, a series of novel biomimetic universal adhesives is reported that shows tunable performance with robust and long‐lasting stable underwater adhesion to various substrates, including wet biological tissues. The versatile and robust wet‐contact adhesives are pre‐polymerized by N‐[tris(hydroxymethyl)methyl]acrylamide, n‐butyl acrylate, and methylacrylic acid in dimethyl sulfoxide and spontaneously coacervated in water triggered by solvent exchange. The synergistic interaction between hydrogen bonding and hydrophobic interaction allows the hydrogels with instant and strong adhesion to various substrate surfaces. The slowly formed covalent bonds enhance cohesion and adhesion strength in hours. The spatial and timescale‐dependent adhesion mechanism endows the adhesives with strong and long‐lasting stable underwater adhesion to be coupled with fault‐tolerant convenient surgical operations.
Funder
National Natural Science Foundation of China
Subject
Pharmaceutical Science,Biomedical Engineering,Biomaterials
Cited by
7 articles.
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