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An Artificial Phase‐Transitional Underwater Bioglue with Robust and Switchable Adhesion Performance
Author(s) -
Xiao Lingling,
Wang Zili,
Sun Yao,
Li Bo,
Wu Baiheng,
Ma Chao,
Petrovskii Vladislav S.,
Gu Xinquan,
Chen Dong,
Potemkin Igor I.,
Herrmann Andreas,
Zhang Hongjie,
Liu Kai
Publication year - 2021
Publication title -
angewandte chemie international edition
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 5.831
H-Index - 550
eISSN - 1521-3773
pISSN - 1433-7851
DOI - 10.1002/anie.202102158
Subject(s) - bioadhesive , coacervate , adhesion , materials science , adhesive , polymer , nanotechnology , phase (matter) , chemical engineering , chemistry , composite material , chromatography , organic chemistry , layer (electronics) , engineering
Complex coacervation enables important wet adhesion processes in natural and artificial systems. However, existed synthetic coacervate adhesives show limited wet adhesion properties, non‐thermoresponsiveness, and inferior biodegradability, greatly hampering their translations. Herein, by harnessing supramolecular assembly and rational protein design, we present a temperature‐sensitive wet bioadhesive fabricated through recombinant protein and surfactant. Mechanical performance of the bioglue system is actively tunable with thermal triggers. In cold condition, adhesion strength of the bioadhesive was only about 50 kPa. By increasing temperature, the strength presented up to 600 kPa, which is remarkably stronger than other biological counterparts. This is probably due to the thermally triggered phase transition of the engineered protein and the formation of coacervate, thus leading to the enhanced wet adhesion bonding.