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Authors: Lupfer, Claudius
Seitel, Sebastian
Skarsetz, Oliver
Walther, Andreas
Title: Mechano-activated self-immolation of hydrogels via signal amplification
Online publication date: 29-Sep-2023
Year of first publication: 2023
Language: english
Abstract: Cellular organisms possess intricate mechano-adaptive systems that enable them to sense forces and process them with (bio)chemical circuits for functional adaptation. Inspired by such processes, this study introduces a hydrogel system capable of mechanically activated and chemically transduced self-destruction. Our judiciously designed hydrogels can mechanically generate radicals that are processed and amplified in a self-propagating radical de-crosslinking reaction, ultimately leading to mechanically triggered self-immolation. We put such systems to work in mechano-induced debonding, and in a bilayer actuator, where swelling-induced bending generates sufficient force for selective degradation of one layer, leading to autonomous self-regulation associated with unbending. Our work helps define design criteria for molecularly controlled adaptive and self-regulating materials with embodied mechano-chemical information processing, and showcases their potential for adhesives and soft robotics.
DDC: 540 Chemie
540 Chemistry and allied sciences
Institution: Johannes Gutenberg-Universität Mainz
Department: FB 09 Chemie, Pharmazie u. Geowissensch.
Place: Mainz
Version: Published version
Publication type: Zeitschriftenaufsatz
License: CC BY
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Journal: Angewandte Chemie
Version of Record (VoR)
Pages or article number: e202309236
Publisher: Wiley-VCH
Publisher place: Weinheim
Issue date: 2023
ISSN: 1521-3773
Publisher DOI: 10.1002/anie.202309236
Relations: is version of 10.25358/openscience-10180
Appears in collections:DFG-491381577-H

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