Waveguiding Microactuators Based on a Photothermally Responsive Nanocomposite Hydrogel |
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| Authors: | Ying Zhou Adam W Hauser Nakul P Bende Mark G Kuzyk Ryan C Hayward |
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| Affiliation: | 1. Department of Polymer Science and Engineering, University of Massachusetts Amherst, Amherst, MA, USA;2. Department of Physics and Astronomy, Washington State University, Pullman, WA, USA |
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| Abstract: | The incorporation of gold nanoparticles within thermally responsive poly(N‐isopropyl acrylamide) hydrogels provides a simple means to define photothermally addressable materials. Relying on such composite gels, it is established here that micropatterned bilayer photoactuators demonstrate rapid and highly reversible bending and unbending behavior in response to illumination with visible light. In addition to actuation by free space light, as in most previous research on such responsive nanocomposite hydrogels, light from a 532 nm laser is also waveguided through a plastic optical fiber directly into the photoactuator, providing remotely controllable actuators that do not require line‐of‐sight access. |
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| Keywords: | hydrogel photoactuator photothermal effect waveguide |
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