Moisture-Driven Ceramic Bilayer Actuators from a Biotemplating Approach.

Van Opdenbosch, Daniel; Fritz-Popovski, Gerhard; Wagermaier, Wolfgang; Paris, Oskar; Zollfrank, Cordt · Adv Mater · 2016

basic_science · Level V

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Abstract

The former ovuliferous scales of biotemplated cones of Pinus nigra show moisture-driven actuation similar to their biological templates, demonstrating a facile route to obtain ceramic moisture-sensitive bilayer actuators. Based on comparative analysis of their hierarchical nanometer-precision replica structures, using, e.g., spatially resolved small-angle X-ray scattering, the origin of the actuation is explained.

Medical subject headings