Title: Hygroscopic biomimetic transducers made from CNT-hydrogel composites
Authors: De Volder, MichaĆ«l
Tawfick, Sam
Copic, Davor
Hart, A. John
Issue Date: 2011
Publisher: IEEE Conferences
Conference: 16th International Conference On Solid-State Sensors, Actuators and Microsystems edition:16 location:Beijing date:5-9 June 2011
Abstract: Plants as well as other biological organisms achieve directed movements by fibres that constraint and direct the isotropic expansion of a matrix material. In order to mimic these actuators, complex arrangements of rigid fibres must be achieved, which is challenging, especially at small scales. In this paper, a new method to organize carbon nanotubes (CNTs) into complex shapes is employed to create a framework for hydrogel infiltration. These CNT frameworks can be realized as iris, needle and bridge architectures, and after hydrogel infiltration, they show directed actuation in response to water uptake. Finally, we show how the latter can be employed as a novel hygroscopic sensor.
Publication status: published
KU Leuven publication type: IC
Appears in Collections:Production Engineering, Machine Design and Automation (PMA) Section

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