The Effects of Network Architecture on the Photomechanical Performance of Azo-Acrylate Liquid Crystal Elastomers DOI Creative Commons
A. V. Svanidze, Sudip Kundu, Olena S. Iadlovska

et al.

Crystals, Journal Year: 2024, Volume and Issue: 15(1), P. 1 - 1

Published: Dec. 24, 2024

Azo-containing liquid crystal elastomers are photomechanical materials that can be actuated via illumination. The response is a result of the photoisomerization azo moiety, which produces bulk stresses in material. These arise two distinct and competing mechanisms: order parameter change induced stress direct contractile stress. We describe thermomechanical experiments aimed at assessing relative contributions these. show details attachment dyes to network greatly influence photoresponse. discuss our results summarize findings.

Language: Английский

Visible‐ and Near‐Infrared Light‐Driven Molecular Photoswitches for Biological Applications DOI Open Access
Yang Xu, Yuqi Tang, Quan Li

et al.

Advanced Functional Materials, Journal Year: 2024, Volume and Issue: unknown

Published: Dec. 19, 2024

Abstract Molecular photoswitches can undergo isomerization under light exposure, making them uniquely attractive for high spatiotemporal resolution remote control of biological functions. Visible and near‐infrared (NIR) light, with their low energy consumption, safety, strong tissue penetration, are particularly suitable applications. Therefore, developing visible‐ NIR light‐driven molecular use is great significance. This review introduces the most common presents state‐of‐art applications in bioimaging, biosensing, drug delivery, photocontrolled cancer phototherapy, photopharmacology. The opportunities challenges future development outlined.

Language: Английский

Citations

7
Post-Synthesis of Donor–Acceptor Stenhouse Adducts into Photochromic Microparticles DOI

Yinghao Ji,

Fanxi Sun,

Gaolu Zhu

et al.

ACS Applied Materials & Interfaces, Journal Year: 2025, Volume and Issue: unknown

Published: May 12, 2025

Encapsulating photoresponsive molecules into polymers is an effective strategy to achieve fast and efficient photochromism in the solid state. Water often used as dispersion phase for formation of polymeric microparticles; however, it reacts with induces irreversible structural degradation. In this work, we report a post-synthesis fabricate photochromic microparticles, where donor-acceptor Stenhouse adducts (DASAs) are applied molecules. Unlike direct loading, hydrostable precursors loaded during followed by synthesizing DASAs inside microparticles water-free environment. The reversibly switched between colored colorless states under control visible light irradiation heat, while also exhibiting improved stability hygrothermal conditions. Further applications smart additives demonstrated controlling color-switching bulk materials rewritable photopatterning on surfaces. approach envisioned general water-sensitive functional

Language: Английский

Citations

0
Versatile Liquid Crystal Elastomer Formulations Using Amine-Acrylate Chemistry and Processing for Advanced Manufacturing DOI
Michael J. Ford, Rodrigo Telles, Dominique H. Porcincula

et al.

ACS Applied Engineering Materials, Journal Year: 2025, Volume and Issue: unknown

Published: May 13, 2025

Language: Английский

Citations

0
Reconfigurable Visible Light‐Driven Liquid Crystalline Network Showing Off‐Equilibrium Motions Enabled by Mesogen‐Grafted Donor–Acceptor Stenhouse Adducts DOI

Zhaozhong Li,

Zizheng Wang, Xinyu Chen

et al.

Advanced Materials, Journal Year: 2024, Volume and Issue: unknown

Published: Oct. 21, 2024

Abstract Liquid crystalline network (LCN)–based soft actuators have opened up great opportunities to fabricate emerging and intriguing smart materials, serving as potential building blocks for intelligent robotics. Endowing LCN with complex responsive behaviors enhance their intelligence is both challenging highly demanded. Herein, Donor–Acceptor Stenhouse Adducts (DASAs) molecules rod‐like mesogen the polymerizable group are judiciously designed synthesized, which strong‐colored at linear form de‐coloration cyclic after visible light. In colored state, DASA presents a striking photothermal effect that capable of driving motions film. Upon light irradiation, becomes colorless, making diminishing effect. The light‐gated switching renders films be reconfigurable perform off‐equilibrium motions. varying glass transition temperature matrix endowing tunable isomerization rates DASAs equilibrium balance photo‐ thermal‐isomerization different temperatures in LCN‐P‐DASA film mainly guiding or stable motions, providing high adjustability novel light‐driven actuators. multiply modulated holds constructing based on synergetic interactions photochemical effects.

Language: Английский

Citations

2
A DASA Displaying Highly Efficient and Rapid Reversible Isomerization within Sustainable Nano/Micro Capsules: One Step Closer to Sustainability DOI Creative Commons

Bao‐Shuo Liu,

Xinnian Fan,

Hao Ma

et al.

Chemical Science, Journal Year: 2024, Volume and Issue: unknown

Published: Jan. 1, 2024

A donor–acceptor Stenhouse adduct exhibits highly efficient, rapid, and reversible isomerization within sustainable nano/micro capsules. Forward reaches 84% (620 nm, 25 °C, 300 s), backward 90% (50 120 s).

Language: Английский

Citations

1
The Effects of Network Architecture on the Photomechanical Performance of Azo-Acrylate Liquid Crystal Elastomers DOI Creative Commons
A. V. Svanidze, Sudip Kundu, Olena S. Iadlovska

et al.

Crystals, Journal Year: 2024, Volume and Issue: 15(1), P. 1 - 1

Published: Dec. 24, 2024

Azo-containing liquid crystal elastomers are photomechanical materials that can be actuated via illumination. The response is a result of the photoisomerization azo moiety, which produces bulk stresses in material. These arise two distinct and competing mechanisms: order parameter change induced stress direct contractile stress. We describe thermomechanical experiments aimed at assessing relative contributions these. show details attachment dyes to network greatly influence photoresponse. discuss our results summarize findings.

Language: Английский

Citations

0