Heterogeneous Interface Interlocking Hydrogel by Harnessing Cellulose Scaffold for Robust and Controllable Soft Actuators DOI

Yuying Song,

Zhouyang Hu, Sanwei Hao

et al.

Advanced Functional Materials, Journal Year: 2025, Volume and Issue: unknown

Published: June 4, 2025

Abstract Stimuli‐responsive hydrogels hold significant promise for human‐machine communication and soft actuators. However, conventional hydrogels, lack inherent rigidity render them incapable of withstanding the external stress concentration, leading to severe structural destruction. To address this limitation, a structurally integrated hydrogel (SIG) based on coordination bonding‐assisted heterostructure design is developed, combining PEDOT:PSS/polyacrylic acid layer rigid TEMPO‐oxidized bacterial cellulose controllable Notably, molecular dynamics simulation reveals that abundant interface interlocking scaffold effectively mitigates crack propagation optimizes integrity. The resulting SIG thus exhibits exceptional mechanical performance, including desirable puncture resistance (4.42 N), superior tearing tolerance (289.24 kJ m −2 ), remarkable deformation stability (40 000 cycles). Meanwhile, contributes programmable reversible auto‐deformation (≈120 s) shape memory (flower gripper). Furthermore, integration with screen‐printed Ag interdigital electrodes enables development smart gripper device capable providing continuous haptic feedback, enhancing its functionality in interactive applications. It envisioned work would open up new avenues impact vibration material offers novel perspective versatile machines.

Language: Английский

Reconfigurable azobenzene liquid crystal elastomers programming towards differentiated biomimetic actuations DOI Creative Commons
Li Han, Ting Liu, Jiaxin Yang

et al.

Research Square (Research Square), Journal Year: 2025, Volume and Issue: unknown

Published: Jan. 7, 2025

Abstract High value-added azobenzene liquid crystal elastomers (AZO-LCEs) derived from styrene-butadiene-styrene triblock copolymer (SBS) are herein developed. The glassy polystyrene (PS) domains in SBS that spontaneously separate LCEs can provide the self-supporting template during actuation and lock LC orientation, enabling reprogrammable, reshapable recyclable AZO-LCE actuators. decoupling effect between oriented continuous polybutadiene (PB) phase leads to arrangement of side-chain mesogens perpendicular main chain, simultaneous synergistic them enables actuators exhibit differentiated auxetic behaviours as temperature transition isotropic (TLC-I) varies. To achieve a large strain, bilayer “Janus” with orthogonal forces designed be driven synergistically by angular cutting angles, bionic applications (like peasecod morphology flower blooming) superior designability. Under prestored stresses inside aforementioned actuators, athletes perform vivid activities. By assembling right- left-handed sensitive TLC-I, they selective actions. Upon programming microscopic macroscopic behaviours, these easily implementable valuable insights for further development soft robots.

Language: Английский

Citations

0
Dual physically crosslinked azobenzene liquid crystal elastomers programmable for multi-modal information encryption DOI

Jiaxin Yang,

Xueli Zhang,

Lu Yin

et al.

Chemical Engineering Journal, Journal Year: 2025, Volume and Issue: unknown, P. 160312 - 160312

Published: Feb. 1, 2025

Language: Английский

Citations

0
Reprogrammable soft actuators based on a photochromic organic–inorganic hybrid membrane with modulatable NIR photothermal conversion DOI

Xingchen Cui,

Zhezhi Liu, Yi Zhang

et al.

Journal of Colloid and Interface Science, Journal Year: 2025, Volume and Issue: unknown, P. 137460 - 137460

Published: March 1, 2025

Language: Английский

Citations

0
Photoinduced, Swift, and Reversible Spatiotemporal Programming of Double Dynamically Bonded Liquid Crystal Elastomer Actuators DOI
Zhenxing Wang, Muqing Si,

Junyi Han

et al.

Advanced Materials, Journal Year: 2025, Volume and Issue: unknown

Published: April 16, 2025

Spatiotemporal programming of the morphing behavior liquid crystal elastomers (LCEs) by local tailoring nematic to isotropic temperature (TNI) can empower precise design their versatile motions. The current approach and materials achieve this process are either slow or irreversible, limiting its efficiency efficacy. Here, a dynamic bond anthracene ethyl acrylate (An-A) is introduced enable photoinduced topology transformation alter TNI LCE, into hydrogen-bonded supramolecular LCE network, where actuation modes already be reconfigured upon annealing. Experiments molecular dynamics simulation demonstrate that An-A bonds undergo reversible cycloaddition with 365 nm UV exposure for as short 10 min, depolymerization 254 UV. resulting topological transformations network give rise changes in TNI, strain, mechanical properties, which programed erased light. With that, spatiotemporally reprogrammable actuator: single morphs different shapes, especially those far more achievable when trajectory designed sequential actuation, developed. This system offers promising strategy swift custom-designed future smart soft robots.

Language: Английский

Citations

0
Heterogeneous Interface Interlocking Hydrogel by Harnessing Cellulose Scaffold for Robust and Controllable Soft Actuators DOI

Yuying Song,

Zhouyang Hu, Sanwei Hao

et al.

Advanced Functional Materials, Journal Year: 2025, Volume and Issue: unknown

Published: June 4, 2025

Abstract Stimuli‐responsive hydrogels hold significant promise for human‐machine communication and soft actuators. However, conventional hydrogels, lack inherent rigidity render them incapable of withstanding the external stress concentration, leading to severe structural destruction. To address this limitation, a structurally integrated hydrogel (SIG) based on coordination bonding‐assisted heterostructure design is developed, combining PEDOT:PSS/polyacrylic acid layer rigid TEMPO‐oxidized bacterial cellulose controllable Notably, molecular dynamics simulation reveals that abundant interface interlocking scaffold effectively mitigates crack propagation optimizes integrity. The resulting SIG thus exhibits exceptional mechanical performance, including desirable puncture resistance (4.42 N), superior tearing tolerance (289.24 kJ m −2 ), remarkable deformation stability (40 000 cycles). Meanwhile, contributes programmable reversible auto‐deformation (≈120 s) shape memory (flower gripper). Furthermore, integration with screen‐printed Ag interdigital electrodes enables development smart gripper device capable providing continuous haptic feedback, enhancing its functionality in interactive applications. It envisioned work would open up new avenues impact vibration material offers novel perspective versatile machines.

Language: Английский

Citations

0