Spatially selective actuation of liquid-crystalline polymer films through two-photon absorption processes.

ABSTRACT: Soft materials that respond to external stimuli are promising candidates for next-generation actuators with human-friendly nature^1,2. Among various stimuli to induce strain, light offers spatial selectivity, which allows versatile motion of a continuous body. However, spatial selectivity of photoactuation has been limited in two dimension due to the predominant absorption of photons by chromophores near a light source in accordance with Beer-Lambert law. Here, we report the deformation of crosslinked liquid-crystalline polymer films triggered by two-photon absorption. The films containing azotolane moieties show photoinduced deformation upon irradiation with fs laser pulses through two-photon absorption. The direction of photoinduced bending is controlled by depth-selective exci

SUBMITTER: Ube T 

PROVIDER: S-EPMC11544012 | biostudies-literature | 2024 Nov

REPOSITORIES: biostudies-literature