| 초록 |
In nature, twisting motions of many organisms enable complex mechanical function such as swimming, crawling, climbing and energy storage. Liquid crystal elastomers (LCEs) are anisotropic polymeric materials which are promising candidates for the soft-actuator owing to their capability of stimuli-responsive properties. LCEs have attracted significant attention due to their possibility of designing structure of the polymer network by templating using the nematic director field. In this work, we report the highly reversible and fast three-dimensional torsional actuation by heat using LCE droplet. We further found that the anisotropic properties could be controlled by the chemical composition of LCE droplet. The simple and versatile method of twisting actuation of LCE droplet allows us to design self-swimming particle and drug delivery system. This work was supported by the POSCO Science Fellowship of POSCO TJ Park Foundation and the Korea National Research Foundation (2021R1A4A1030944). |
