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Photo-responsive liquid crystal network-based material with adaptive modulus for haptic application

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    Abstract

    Artificially created tactile feedback is in high demand due to fast developments in robotics, remote control in medicine, virtual reality, and smart electronics. Despite significant progress, high-quality haptic feedback devices remain challenging mainly due to the lack of stability and spatiotemporal resolution. In this work, we address these issues by the application of dynamic coatings, based on photo-responsive liquid crystal network (LCN) material. This material adapts upon an external stimulus (UV light with a power intensity of 50–90 mW/cm2) that changes its elastic properties (87% decrease of the modulus for 90 mW/cm2 power intensity of 365 nm UV light). Localized change of adaptive modulus with very high resolution (2 μm) was demonstrated.

    Original languageEnglish
    Article number19512
    Number of pages8
    JournalScientific Reports
    Volume12
    DOIs
    Publication statusPublished - 14 Nov 2022

    Bibliographical note

    Funding Information:
    This research was financially supported by Meta (Facebook Reality Labs). We also thank The Netherlands Organization for Scientific Research (NWO OCENW.KLEIN. 10854, START-UP 8872) and the European Union’s Horizon 2020 Research and Innovation Programme under the Marie Sklodowska-Curie Grant Agreement 956150 (STORM-BOTS) for financial support. We would also like to show our gratitude to Dr. Lu Lu and Dr. Junren Wang for the fruitful discussions. We are also grateful to Dr. Thierry Slot for manufacturing the LED controller, Tom Bus for SEM measurements and Prof. Stefan Meskers for the fluorescent dye spectra measurements. Finally, we thank Larysa Kurylo for her help with the figures.

    Funding

    This research was financially supported by Meta (Facebook Reality Labs). We also thank The Netherlands Organization for Scientific Research (NWO OCENW.KLEIN. 10854, START-UP 8872) and the European Union’s Horizon 2020 Research and Innovation Programme under the Marie Sklodowska-Curie Grant Agreement 956150 (STORM-BOTS) for financial support. We would also like to show our gratitude to Dr. Lu Lu and Dr. Junren Wang for the fruitful discussions. We are also grateful to Dr. Thierry Slot for manufacturing the LED controller, Tom Bus for SEM measurements and Prof. Stefan Meskers for the fluorescent dye spectra measurements. Finally, we thank Larysa Kurylo for her help with the figures. This research was financially supported by Meta (Facebook Reality Labs). We also thank The Netherlands Organization for Scientific Research (NWO OCENW.KLEIN. 10854, START-UP 8872) and the European Union’s Horizon 2020 Research and Innovation Programme under the Marie Sklodowska-Curie Grant Agreement 956150 (STORM-BOTS) for financial support. We would also like to show our gratitude to Dr. Lu Lu and Dr. Junren Wang for the fruitful discussions. We are also grateful to Dr. Thierry Slot for manufacturing the LED controller, Tom Bus for SEM measurements and Prof. Stefan Meskers for the fluorescent dye spectra measurements. Finally, we thank Larysa Kurylo for her help with the figures.

    Keywords

    • Liquid Crystals
    • Haptic Technology
    • Touch
    • Robotics
    • Touch Perception

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