CUED Publications database

Hygroscopic biomimetic transducers made from CNT-hydrogel composites

De Volder, M and Tawfick, S and Copic, D and Hart, AJ (2011) Hygroscopic biomimetic transducers made from CNT-hydrogel composites. In: UNSPECIFIED pp. 1717-1720..

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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. © 2011 IEEE.

Item Type: Conference or Workshop Item (UNSPECIFIED)
Divisions: Div E > Production Processes
Depositing User: Cron Job
Date Deposited: 17 Jul 2017 19:17
Last Modified: 14 Jun 2018 01:55