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|a 10.1002/adma.202303969
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|a eng
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| 100 |
1 |
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|a Chen, Mei
|e verfasserin
|4 aut
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| 245 |
1 |
0 |
|a 4D Printing of Reprogrammable Liquid Crystal Elastomers with Synergistic Photochromism and Photoactuation
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|c 2024
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|a Text
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|a ƒaComputermedien
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|a ƒa Online-Ressource
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|a Date Revised 21.08.2024
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|a published: Print-Electronic
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|a Citation Status PubMed-not-MEDLINE
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|a © 2023 Wiley‐VCH GmbH.
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|a 4D printing of liquid crystal elastomers (LCEs) via direct ink writing has opened up great opportunities to create stimuli-responsive actuations for applications such as soft robotics. However, most 4D-printed LCEs are limited to thermal actuation and fixed shape morphing, posing a challenge for achieving multiple programmable functionalities and reprogrammability. Here, a 4D-printable photochromic titanium-based nanocrystal (TiNC)/LCE composite ink is developed, which enables the reprogrammable photochromism and photoactuation of a single 4D-printed architecture. The printed TiNC/LCE composite exhibits reversible color-switching between white and black in response to ultraviolet (UV) irradiation and oxygen exposure. Upon near-infrared (NIR) irradiation, the UV-irradiated region can undergo photothermal actuation, allowing for robust grasping and weightlifting. By precisely controlling the structural design and the light irradiation, the single 4D-printed TiNC/LCE object can be globally or locally programmed, erased, and reprogrammed to achieve desirable photocontrollable color patterns and 3D structure constructions, such as barcode patterns and origami- and kirigami-inspired structures. This work provides a novel concept for designing and engineering adaptive structures with unique and tunable multifunctionalities, which have potential applications in biomimetic soft robotics, smart construction engineering, camouflage, multilevel information storage, etc
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| 650 |
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4 |
|a Journal Article
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| 650 |
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4 |
|a 4D printing
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| 650 |
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4 |
|a liquid crystal elastomers
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| 650 |
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4 |
|a photochromism
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| 650 |
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4 |
|a photothermal actuation
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| 650 |
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4 |
|a reprogrammability
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| 700 |
1 |
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|a Hou, Yanbei
|e verfasserin
|4 aut
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| 700 |
1 |
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|a An, Ran
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Qi, H Jerry
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Zhou, Kun
|e verfasserin
|4 aut
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| 773 |
0 |
8 |
|i Enthalten in
|t Advanced materials (Deerfield Beach, Fla.)
|d 1998
|g 36(2024), 34 vom: 27. Aug., Seite e2303969
|w (DE-627)NLM098206397
|x 1521-4095
|7 nnns
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| 773 |
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|g volume:36
|g year:2024
|g number:34
|g day:27
|g month:08
|g pages:e2303969
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|u http://dx.doi.org/10.1002/adma.202303969
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