title: One-Component Dual Actuation: Poly(NIPAM) Can Actuate to Stable 3D Forms with Reversible Size Change.
abstract: A rare example of a one-component dual actuator is provided, which displays irreversible change in shape by rolling on contact with water and reversible size change on changing the temperature. The actuator has a bilayer structure with aligned and randomly oriented fibers of poly(N-isopropyl acrylamide). A combination of anisotropic E modulus and temperature dependent swelling/shrinkage provides the dual actuation.
authors.affiliation: Macromolecular Chemistry II, and Bayreuth Center for Colloids and Interfaces, Universität Bayreuth, Universitätsstraße 30, 95440, Bayreuth, Germany.
authors.forename: Li
authors.initials: L
authors.lastname: Liu
authors.affiliation: Biofluid Simulation and Modeling, Fachbereich Physik, and Bayreuth Center for Colloids and Interfaces, Universität Bayreuth, Universitätsstraße 30, 95440, Bayreuth, Germany.
authors.forename: Ali
authors.initials: A
authors.lastname: Ghaemi
authors.affiliation: Biofluid Simulation and Modeling, Fachbereich Physik, and Bayreuth Center for Colloids and Interfaces, Universität Bayreuth, Universitätsstraße 30, 95440, Bayreuth, Germany.
authors.forename: Stephan
authors.initials: S
authors.lastname: Gekle
authors.affiliation: Macromolecular Chemistry II, and Bayreuth Center for Colloids and Interfaces, Universität Bayreuth, Universitätsstraße 30, 95440, Bayreuth, Germany.
authors.forename: Seema
authors.initials: S
authors.lastname: Agarwal
keywords: 3D; one component; size actuation; stable; ultra-fast