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Creators/Authors contains: "Araoka, Fumito"

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  1. ; ; ; ; ; ; (, Journal of Molecular Liquids)
    Free, publicly-accessible full text available June 1, 2026
  2. ; ; ; ; (, Giant)
    Free, publicly-accessible full text available April 1, 2026
  3. ; ; ; ; (, Journal of Molecular Liquids)
    Free, publicly-accessible full text available November 1, 2025
  4. ; ; ; ; (, Nature communications)
    Ferroelectric nematic liquid crystals are fluids exhibiting spontaneous electric polarization, which is coupled to their long range orientational order. Due to their inherent property of making bound and surface charges, the free surface of ferroelectric nematics becomes unstable in electric fields. Here we show that ferroelectric liquid bridges between two electrode plates undergo distinct interfacial instabilities. In a specific range of frequency and voltage, the ferroelectric fluid bridges move as active interacting particles resembling living organisms like swarming insects, microbes or microrobots. The motion is accompanied by sound emission, as a consequence of piezoelectricity and electrostriction. Statistical analysis of the active particles reveals that the movement can be controlled by the applied voltage, which implies the possible application of the system in new types of microfluidic devices. 
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