[1PS-055]
우수논문발표상 응모자Stimuli-Driven Reconfiguration of Colloidal Assemblies in Liquid Crystal Defects
발표자최대섭 (포항공과대학교)
연구책임자김영기 (포항공과대학교)
Abstract
Liquid crystal (LC) disclination lines are topological singularities which are promising templates for programmable colloidal assembly. However, previous techniques have been limited in achieving rapid and precise control over assembled structures. Here, we demonstrate modulation of disclination, enabling dynamic repositioning of colloidal chains. By applying electric fields combined with thermal ramps, we actively modulate LC disclination lines, transporting tethered colloids along predetermined trajectories. This approach provides reversible colloidal assemblies without repatterning of surface, which can be achieved by leveraging electric field interactions and temperature-induced elasticity changes. These dynamically tunable assemblies hold significant promise for applications in reconfigurable soft photonics, programmable micro actuation, and stimuli-responsive adaptive metamaterials. This work was supported by the NRF (RS-2023-00212739, RS-2024-00411809 and RS-2023-00302586).