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June 29th, 2007

Instant insight: Polymers in nanobionics

Recent material developments move us closer to these possibilities. Like natural muscle, the formation of ICPs into fibres provides a better geometry for actuator performance. For example, polyaniline fibres are now readily available in high strength and conductivity. Furthermore, we have shown that the addition of small quantities of carbon nanotubes to polyaniline, followed by wet-spinning and drawing, produces superior actuation response under an external load. In fact, we measured an actuation response at more than 100 MPa applied stress, three times higher than previously reported for conducting polymer actuators.


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