Autoren:	Ludanowski, Simon Skarsetz, Oliver Creusen, Guido Hoenders, Daniel Straub, Paula Walther, Andreas
Titel:	Wavelength-gated adaptation of hydrogel properties via photo-dynamic multivalency in associative star polymers
Online-Publikationsdatum:	25-Jun-2021
Erscheinungsdatum:	2021
Sprache des Dokuments:	Englisch
Zusammenfassung/Abstract:	Responsive materials, such as switchable hydrogels, have been largely engineered for maximum changes between two states. In contrast, adaptive systems target distinct functional plateaus between these maxima. Here, we demonstrate how the photostationary state (PSS) of an E/Z-arylazopyrazole photoswitch can be tuned by the incident wavelength across a wide color spectrum, and how this behavior can be exploited to engineer the photo-dynamic mechanical properties of hydrogels based on multivalent photoswitchable interactions. We show that these hydrogels adapt to the wavelength-dependent PSS and the number of arylazopyrazole units by programmable relationships. Hence, our material design enables the facile adjustment of the mechanical properties without laborious synthetic efforts. The concept goes beyond the classical switching from state A to B, and demonstrates pathways for a truly wavelength-gated adaptation of hydrogel properties potentially useful to engineer cell fate or in soft robotics.
DDC-Sachgruppe:	540 Chemie 540 Chemistry and allied sciences
Veröffentlichende Institution:	Johannes Gutenberg-Universität Mainz
Organisationseinheit:	FB 09 Chemie, Pharmazie u. Geowissensch.
Veröffentlichungsort:	Mainz
ROR:	https://ror.org/023b0x485
DOI:	http://doi.org/10.25358/openscience-6023
Version:	Published version
Publikationstyp:	Zeitschriftenaufsatz
Nutzungsrechte:	CC BY-NC-ND
Informationen zu den Nutzungsrechten:	https://creativecommons.org/licenses/by-nc-nd/4.0/
Zeitschrift:	Angewandte Chemie 60 8
Seitenzahl oder Artikelnummer:	4358 4367
Verlag:	Wiley-VCH
Verlagsort:	Weinheim
Erscheinungsdatum:	2021
ISSN:	1521-3773
URL der Originalveröffentlichung:	https://doi.org/10.1002/anie.202011592
DOI der Originalveröffentlichung:	10.1002/anie.202011592
Enthalten in den Sammlungen:	JGU-Publikationen