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- Title
Light-Controlled Actuation, Transduction, and Modulation of Magnetic Strength in Polymer Nanocomposites.
- Authors
Haberl, Johannes M.; Sánchez‐Ferrer, Antoni; Mihut, Adriana M.; Dietsch, Hervé; Hirt, Ann M.; Mezzenga, Raffaele
- Abstract
Remotely controlled actuation with wireless sensorial feed-back is desirable for smart materials to obtain fully computer-controlled actuators. A light-controllable polymeric material is presented, in which exposure to light couples with a change in magnetic properties, allowing light signal conversion into non-volatile magnetic memory. The same material can serve, additionally, both as actuator and transducer, and allows the monitoring of its two-way elastic shape-changes by magnetic read-out. In order to tune the macroscopic magnetic properties of the material, both the reorientation of i) shape anisotropic ferrimagnetic nano-spindles and ii) a mechanically and magnetically coupled liquid-crystalline elastomer (LCE) matrix are controlled. These materials are envisioned to have great potential for the development of innovative functional objects, for example, computer-controlled smart clothing, sensors, signal encoding, micro-valves, and robotic devices.
- Subjects
POLYMERIC nanocomposites; MAGNETIC properties; MAGNETIC memory (Computers); ELASTOMERS; ROBOTICS
- Publication
Advanced Functional Materials, 2014, Vol 24, Issue 21, p3179
- ISSN
1616-301X
- Publication type
Article
- DOI
10.1002/adfm.201304218