Customizable Single-Layer Programmable Deformation Hydrogel Robots Based on One-Time Fabricating with Near-Infrared-Triggered Responsiveness DOI

Chenlong Tang,

Hui Ma,

Shiyu Wu

et al.

Soft Robotics, Journal Year: 2025, Volume and Issue: unknown

Published: April 8, 2025

Programmable deformation hydrogel robots have garnered significant attention in biomedical fields due to their ability undergo large-scale reversible deformation. As clinical demand rises, there is a need for that are easy process and operate, can programmable Here, we propose method fabricate single-layer one step using high-precision digital light processing 3D printing system. Two kinds of deformable elements with different structure distribution on the top bottom sides produced by two focused varying intensities. By combining these elements, create four basic modules fixed shapes. The desired shape be achieved programming combination modules. exhibit repeat under near-infrared stimulation. We validate our approach fabricating several scaffolds combinations modules, demonstrating feasibility potential application pipeline movement. This research provides simple offers novel fields.

Language: Английский

Highly‐Aligned All‐Fiber Actuator with Asymmetric Photothermal‐Humidity Response and Autonomous Perceptivity DOI
Yufan Zhang, Xinran Zhou,

Luyun Liu

et al.

Advanced Materials, Journal Year: 2024, Volume and Issue: 36(33)

Published: June 26, 2024

Soft robots adapt to complex environments for autonomous locomotion, manipulation, and perception are attractive robot-environment interactions. Strategies reconcile environment-triggered actuation self-powered sensing responses different stimuli remain challenging. By tuning the in situ vapor phase solvent exchange effect continuous electrospinning, an asymmetric highly-aligned all-fiber membrane (HAFM) with a hierarchical "grape-like" nanosphere-assembled microfiber structure (specific surface area of 13.6 m

Language: Английский

Citations

17

Dynamic Covalent Bonded Gradient Structured Actuators with Mechanical Robustness and Self‐Healing Ability DOI

Chuansong Yu,

Xinkai Li,

Xin Yang

et al.

Small, Journal Year: 2024, Volume and Issue: 20(27)

Published: Feb. 2, 2024

Abstract Flexible actuators with excellent adaptability and interaction safety have a wide range of application prospects in many fields. However, current flexible problems such as fragility poor actuating ability. Here, inspired by the features nacre structure, gradient structured actuator is proposed mechanical robustness self‐healing By introducing dynamic boronic ester bonds at interface between MXene nanosheets epoxy natural rubber matrix, resulting nanocomposites ordered micro‐nano structures exhibit tensile strength (25.03 MPa) satisfactory repair efficiency (81.2%). In addition, distribution structure endows stable photothermal conversion capability, which can quickly respond to near‐infrared light stimulation. The interlayer covalent bond crosslinking enables good response speed after multiple bending capable functional damage. This work introduces bonding into actuators, provides reference for fabrication soft robots, wearable, other healable materials.

Language: Английский

Citations

15

Bioinspired Wearable Thermoelectric Device Constructed with Soft‐Rigid Assembly for Personal Thermal Management DOI
Bo Wu, Yujie Lin,

Yuqing Tian

et al.

Advanced Functional Materials, Journal Year: 2024, Volume and Issue: 34(37)

Published: May 7, 2024

Abstract The development of high‐performance thermoelectric devices (TEDs) with personal thermoregulation is crucial for the advancement next‐generation wearable technologies. Most efforts focus on optimizing mechanical flexibility in fully encapsulated devices, but parasitic heat loss induced by layer‐packed polymer matrices high thermal impedance typically leads to degradation sensing and bidirectional conversion capabilities. Here, a bioinspired architectural strategy proposed this problem that demonstrates feasibility single‐sided assembly based soft‐rigid “skin‐spine” configuration improve utilization efficiency. With active TE units connected via serpentine electrodes, skin‐spine‐structured (SSSW‐TEDs) are successfully fabricated enabling temperature heat‐to‐electricity under mild forced convection. This contributes significant enhancements power delivery (by 300%) cost‐benefit analysis 100%) through efficient air convection dissipation. Moreover, SSSW‐TED enables regulation harnessing body heat, cooling skin, perceiving behaviors such as touching blowing. study not only provides novel insights TEDs also lays foundation widespread implementation skin thermoregulation.

Language: Английский

Citations

13

Self‐Healing Yet Strong Actuator Materials with Muscle‐Like Diastole and Contraction via Multilevel Relaxations DOI Open Access
Zhuo Huang,

Zhibo Wu,

Changchun Li

et al.

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

Published: Dec. 10, 2024

Skeletal muscles represent a role model in soft robotics featuring agile locomotion and incredible mechanical robustness. However, existing actuators lack an optimal combination of actuation parameters (including modes, work capacity, strength, damage repair) to rival biological tissues. Here, biomimetic structural design strategy via multilevel relaxations (α/β/γ/δ-relaxation) modulation is proposed for robust healable actuator materials with muscle-like diastole contraction abilities by orientational alignment dendritic polyphenol-modified nano-assembles eutectogels. The anisotropic hierarchical micro-nanostructures assembled supramolecular interaction mimic the relative slippage actin filaments myosin muscles, ensuring bistable through rapid thermal α-relaxation expansion. Furthermore, kinetically active secondary β/γ/δ-relaxation at reconfigurable interfaces can conquer limited self-healing ability fixed-orientation polymeric chains. obtained artificial muscle exhibits high output actuation, properties (tensile strength 33.5 MPa), desired functional, efficiency (89.7%), exceeding typical natural living systems. bionic micro-nano achieves bottom-up cooperative relaxation integrate all-round performance which paves way substantial advancements next-generation intelligent robotics.

Language: Английский

Citations

11

Design of mechanically robust, recyclable, multi-stimuli-responsive shape memory elastomers based on biological phytic acid and cuttlefish ink DOI
Jiarong Huang, Xiao Wang,

Haonan Wu

et al.

Chemical Engineering Journal, Journal Year: 2024, Volume and Issue: 490, P. 151516 - 151516

Published: April 21, 2024

Language: Английский

Citations

10

Multi‐Responsive COF‐Enhanced Smart Actuator DOI Open Access
Cheng Gong,

Chao Sui,

Weizhe Hao

et al.

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

Published: Jan. 28, 2025

Abstract Smart composite materials are attracting increasing attention for their novel stimulus‐response characteristics. Among them, Cellulose nanofibers (CNF)‐based smart composites widely used due to excellent properties. For enhancing the response rate and stability of CNF‐based actuator, a covalent organic framework (COF) nanoparticle is synthesized via molecular design enhance multi‐responsive materials. COF‐TASA, characterized by high specific surface area, exhibits highest photothermal conversion efficiency 79.9% COF date. A multi‐stimuli responsive actuator prepared through compounding CNF, polyvinylidene fluoride (PVDF). The membrane demonstrates reversible ability change shape when exposed near‐infrared (NIR) light humidity. This caused asymmetric deformation COC PVDF layers. Finally, mechanism enhancement system COF‐TASA successfully elucidated experiments dynamics (MD) simulations, indicating that introduction forms ordered channels in COC, greatly area transport speed water molecules. COF‐enhanced anticipated provide important solutions control, detection, environmental energy collection.

Language: Английский

Citations

1

High‐Load Shape Memory Microgripper with Embedded Resistive Heating and Magnetic Actuation DOI Open Access
Sizhu Wu, Yifan Liu, Yachao Zhang

et al.

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

Published: Feb. 3, 2025

Abstract Magnetically actuated soft grippers find extensive applications in robotics due to their rapid response, biological safety, and wireless control capabilities. However, these systems often require a continuously applied magnetic field during both the capture release processes, which reduces load capacity makes gripping ferromagnetic objects challenging. Here, an electrothermal‐magnetic shape memory (EM‐SMP) microgripper is developed. By incorporating Fe₃O₄ particles into polymer (SMP) embedding resistive wires, can respond electric current field. The high thermal conductivity of composite material, coupled with microscale dimensions achieved via femtosecond laser processing, significantly enhances response speed (≈0.9 s). only open gripper, while closure realized through electrothermal‐triggered effect, allowing sequential safely grip delicate without interference. Upon cooling, closed state SMP gripper locks place energy consumption. Furthermore, claw‐shaped design allows enclose larger grasping, thereby improving load‐to‐weight ratio (≈2380). This demonstrates broad application potential, effectively performing grasp tasks across diverse materials, sizes, shapes, states, extreme environmental conditions (acidic alkaline).

Language: Английский

Citations

1

High-performance cellulose nanofibers-based actuators with multi-stimulus responses and energy storage DOI
Jie Wei, Chao Ma, Tingting Zhang

et al.

Chemical Engineering Journal, Journal Year: 2024, Volume and Issue: 490, P. 151393 - 151393

Published: April 17, 2024

Language: Английский

Citations

8

Biobased Inks Based on Cuttlefish Ink and Cellulose Nanofibers for Biodegradable Patterned Soft Actuators DOI
Zhong Chen, Xu Zhao, Bo Gao

et al.

ACS Applied Materials & Interfaces, Journal Year: 2024, Volume and Issue: 16(17), P. 22547 - 22557

Published: April 17, 2024

Soft actuators with stimuli-responsive and reversible deformations have shown great promise in soft robotics. However, some challenges remain existing actuators, such as the materials involved derived from nonrenewable resources, complex nonscalable preparation methods, incapability of programmable deformation. Here, a biobased ink based on cuttlefish nanoparticles (CINPs) cellulose nanofibers (CNFs) was developed, allowing for biodegradable patterned by direct writing technology. The hybrid CNF/CINP displays good rheological properties, it to be accurately printed variety flexible substrates. A bilayer actuator developed printing an layer poly(lactic acid) film using extrusion-based 3D technology, which exhibits large bending behavior under stimuli humidity light. Furthermore, folding coiling response been achieved adjusting patterns. This work offers fast, scalable, cost-effective strategy development shape-morphing.

Language: Английский

Citations

7

A light/thermal cascaded-driven equipment for machine recognition inspired by water lilies using as multifunctional soft actuator DOI

Tianzong Jiang,

Shili Gai, Yanqi Yin

et al.

Chemical Engineering Journal, Journal Year: 2024, Volume and Issue: 495, P. 153348 - 153348

Published: June 20, 2024

Language: Английский

Citations

5