Evidence map›Paper›PMID 39241061›Full record

ArticleScience advances2024

Alignment and actuation of liquid crystals via 3D confinement and two-photon laser printing.

Li-Yun Hsu, Santiago Gomez Melo, Clara Vazquez-Martel, Christoph A Spiegel, Falko Ziebert, Ulrich S Schwarz, Eva Blasco

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In one paragraph

Article in Science advances, 2024. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 8 papers.

0numbers the graph read from it
0cells of the map it votes in
8citing papers in PubMed
–field-weighted citation impact
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

8 citing papers in PubMed.

  1. Article
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  7. In Situ Control of Reactive Mesogens Alignment During 3D Printing by Two-Photon Lithography.Advanced science (Weinheim, Baden-Wurttemberg, Germany) · 2025
    Article
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4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

7 authors.

Li-Yun HsuInstitute for Molecular Systems Engineering and Advanced Materials (IMSEAM), Heidelberg University, Im Neuenheimer Feld 225, Heidelberg 69120, Germany.ORCID 0009-0002-6937-7554
Santiago Gomez MeloInstitute for Theoretical Physics, Heidelberg University, Philosophenweg 19, Heidelberg 69120 Germany.ORCID 0000-0002-7089-3209
Clara Vazquez-MartelInstitute for Molecular Systems Engineering and Advanced Materials (IMSEAM), Heidelberg University, Im Neuenheimer Feld 225, Heidelberg 69120, Germany.ORCID 0000-0002-4656-6056
Christoph A SpiegelInstitute for Molecular Systems Engineering and Advanced Materials (IMSEAM), Heidelberg University, Im Neuenheimer Feld 225, Heidelberg 69120, Germany.ORCID 0000-0002-5228-9083
Falko ZiebertInstitute for Theoretical Physics, Heidelberg University, Philosophenweg 19, Heidelberg 69120 Germany.ORCID 0000-0001-6332-7287
Ulrich S SchwarzInstitute for Theoretical Physics, Heidelberg University, Philosophenweg 19, Heidelberg 69120 Germany.ORCID 0000-0003-1483-640X
Eva BlascoInstitute for Molecular Systems Engineering and Advanced Materials (IMSEAM), Heidelberg University, Im Neuenheimer Feld 225, Heidelberg 69120, Germany.ORCID 0000-0002-0849-4223

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

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.

Identifiers

PMID39241061
PMCPMC11378907

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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.