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Soft Electronic Platforms Combining Elastomeric Stretchability and Biodegradability

Held, Martin 1; Pichler, Alexander; Chabeda, Joshua 1; Lam, Natalie 1; Hindenberg, Philip; Romero-Nieto, Carlos; Hernandez-Sosa, Gerardo 1
1 Lichttechnisches Institut (LTI), Karlsruher Institut für Technologie (KIT)

Soft and stretchable electronic devices are expected to offer technological advances in the field of robotics, human–machine interfacing, and healthcare. Employing biodegradable elastomers, hydrogels, and nontoxic conductors would add significant value to and minimize the ecological impact of such disposable and transient electronic applications. Here, the biodegradable and photo‐crosslinkable elastomer poly(glycerol sebacic) acrylate (PGSA) is characterized for its use in soft and stretchable electronics. Its mechanical properties are investigated in terms of their chemical composition and compared to commonly used gelatin hydrogels. Furthermore, these materials are combined with interconnects made of liquid Galinstan in order to create functional substrates with certified biodegradability under ISO standards. The combination of these materials produces elastic circuit boards that act as soft platforms for body‐mounted sensors or biodegradable stretchable light‐emitting devices. These soft platforms reveal linear elongations at a break of 130% to 350% and similar moduli to nondegradable elastomers and human tissue, without any decrease in conductivity. ... mehr

Verlagsausgabe §
DOI: 10.5445/IR/1000130810
Veröffentlicht am 23.03.2021
DOI: 10.1002/adsu.202100035
Zitationen: 2
Web of Science
Zitationen: 5
Zitationen: 6
Cover der Publikation
Zugehörige Institution(en) am KIT Lichttechnisches Institut (LTI)
Publikationstyp Zeitschriftenaufsatz
Publikationsjahr 2021
Sprache Englisch
Identifikator ISSN: 2366-7486
KITopen-ID: 1000130810
HGF-Programm 38.01.02 (POF IV, LK 01) Materials and Interfaces
Erschienen in Advanced Sustainable Systems
Verlag Wiley-VCH Verlag
Seiten Art.-Nr. 2100035
Vorab online veröffentlicht am 03.03.2021
Schlagwörter biodegradable; elastomers; Galinstan; gelatin hydrogels; light‐emitting electrochemical cells
Nachgewiesen in Web of Science
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