| |  Online-Ressource |
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| Verfasst von: | Hsu, Li-Yun [VerfasserIn]  |
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| | Gomez Melo, Santiago [VerfasserIn] |
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| | Vázquez-Martel, Clara [VerfasserIn] |
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| | Spiegel, Christoph A. [VerfasserIn] |
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| | Ziebert, Falko [VerfasserIn] |
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| | Schwarz, Ulrich S. [VerfasserIn] |
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| | Blasco, Eva [VerfasserIn] |
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| Titel: | Alignment and actuation of liquid crystals via 3D confinement and two-photon laser printing |
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| Verf.angabe: | Li-Yun Hsu, Santiago Gomez Melo, Clara Vazquez-Martel, Christoph A. Spiegel, Falko Ziebert, Ulrich S. Schwarz, Eva Blasco |
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| E-Jahr: | 2024 |
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| Jahr: | 6 Sep 2024 |
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| Umfang: | 12 S. |
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| Fussnoten: | Gesehen am 11.02.2025 |
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| Titel Quelle: | Enthalten in: Science advances |
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| Ort Quelle: | Washington, DC [u.a.] : Assoc., 2015 |
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| Jahr Quelle: | 2024 |
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| Band/Heft Quelle: | 10(2024), 36, Artikel-ID eadq2597, Seite 1-12 |
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| ISSN Quelle: | 2375-2548 |
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| Abstract: | Liquid crystalline (LC) materials are especially suited for the preparation of active three-dimensional (3D) and 4D microstructures using two-photon laser printing. To achieve the desired actuation, the alignment of the LCs has to be controlled during the printing process. In most cases studied before, the alignment relied on surface modifications and complex alignment patterns and concomitant actuation were not possible. Here, we introduce a strategy for spatially aligning LC domains in three-dimensional space by using 3D-printed polydimethylsiloxane-based microscaffolds as confinement barriers, which induce the desired director field. The director field resulting from the boundary conditions is calculated with Landau de Gennes theory and validated by comparing experimentally measured and theoretically predicted birefringence patterns. We demonstrate our procedures for structures of varying complexity and then employed them to fabricate 4D microstructures that show the desired actuation. Overall, we obtain excellent agreement between theory and experiment. This opens the door for rational design of functional materials for 4D (micro)printing in the future. |
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| DOI: | doi:10.1126/sciadv.adq2597 |
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| URL: | Bitte beachten Sie: Dies ist ein Bibliographieeintrag. Ein Volltextzugriff für Mitglieder der Universität besteht hier nur, falls für die entsprechende Zeitschrift/den entsprechenden Sammelband ein Abonnement besteht oder es sich um einen OpenAccess-Titel handelt.
Volltext: https://doi.org/10.1126/sciadv.adq2597 |
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| | Volltext: https://www.science.org/doi/10.1126/sciadv.adq2597 |
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| | DOI: https://doi.org/10.1126/sciadv.adq2597 |
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| Datenträger: | Online-Ressource |
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| Sprache: | eng |
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| K10plus-PPN: | 1916956718 |
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| Verknüpfungen: | → Zeitschrift |
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Alignment and actuation of liquid crystals via 3D confinement and two-photon laser printing / Hsu, Li-Yun [VerfasserIn]; 6 Sep 2024 (Online-Ressource)
