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One-volt-driven superfast polymer actuators based on single-ion conductors.

ABSTRACT: The key challenges in the advancement of actuator technologies related to artificial muscles include fast-response time, low operation voltages and durability. Although several researchers have tackled these challenges over the last few decades, no breakthrough has been made. Here we describe a platform for the development of soft actuators that moves a few millimetres under 1?V in air, with a superfast response time of tens of milliseconds. An essential component of this actuator is the single-ion-conducting polymers that contain well-defined ionic domains through the introduction of zwitterions; this achieved an exceptionally high dielectric constant of 76 and a 300-fold enhancement in ionic conductivity. Moreover, the actuator demonstrated long-term durability, with negligible changes in the actuator stroke over 20,000 cycles in air. Owing to its low-power consumption (only 4?mW), we believe that this actuator could pave the way for cutting-edge biomimetic technologies in the future.

SUBMITTER: Kim O

PROVIDER: S-EPMC5120218 | biostudies-literature | 2016 Nov

REPOSITORIES: biostudies-literature

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One-volt-driven superfast polymer actuators based on single-ion conductors.

Kim Onnuri O Kim Hoon H Choi U Hyeok UH Park Moon Jeong MJ

Nature communications 20161118

The key challenges in the advancement of actuator technologies related to artificial muscles include fast-response time, low operation voltages and durability. Although several researchers have tackled these challenges over the last few decades, no breakthrough has been made. Here we describe a platform for the development of soft actuators that moves a few millimetres under 1 V in air, with a superfast response time of tens of milliseconds. An essential component of this actuator is the single- ...[more]

PMID: 27857067

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