Instant tough bonding of hydrogels for soft machines and electronics | Zendy

Daniela Wirthl | Zendy; Robert Pichler | Zendy; Michael Drack | Zendy; Gerald Kettlguber | Zendy; Richard Moser | Zendy; Robert Gerstmayr | Zendy; Florian Hartmann | Zendy; Elke Bradt | Zendy; Rainer Kaltseis | Zendy; Christian M. Siket | Zendy; Stefan E. Schausberger | Zendy; Sabine Hild | Zendy; Siegfried Bauer | Zendy; Martin Kaltenbrunner | Zendy

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Instant tough bonding of hydrogels for soft machines and electronics

Author(s) -

Daniela Wirthl,

Robert Pichler,

Michael Drack,

Gerald Kettlguber,

Richard Moser,

Robert Gerstmayr,

Florian Hartmann,

Elke Bradt,

Rainer Kaltseis,

Christian M. Siket,

Stefan E. Schausberger,

Sabine Hild,

Siegfried Bauer,

Martin Kaltenbrunner

Publication year - 2017

Publication title -

science advances

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 5.928

H-Index - 146

ISSN - 2375-2548

DOI - 10.1126/sciadv.1700053

Subject(s) - self healing hydrogels , instant , electronics , soft materials , nanotechnology , materials science , energy storage , computer science , chemistry , electrical engineering , physics , engineering , polymer chemistry , food science , power (physics) , quantum mechanics

Introducing methods for instant tough bonding between hydrogels and antagonistic materials—from soft to hard—allows us to demonstrate elastic yet tough biomimetic devices and machines with a high level of complexity. Tough hydrogels strongly attach, within seconds, to plastics, elastomers, leather, bone, and metals, reaching unprecedented interfacial toughness exceeding 2000 J/m2. Healing of severed ionic hydrogel conductors becomes feasible and restores function instantly. Soft, transparent multilayered hybrids of elastomers and ionic hydrogels endure biaxial strain with more than 2000% increase in area, facilitating soft transducers, generators, and adaptive lenses. We demonstrate soft electronic devices, from stretchable batteries, self-powered compliant circuits, and autonomous electronic skin for triggered drug delivery. Our approach is applicable in rapid prototyping and in delicate environments inaccessible for extended curing and cross-linking.

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