Polymorphing Hydrogels Regulated by Photo‐reactive DNA Cross‐links DOI
Jin-Ho Roh, Seongjun Park,

Hoeseong Kim

et al.

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

Published: Dec. 1, 2024

Abstract Polymorphing hydrogels can morph into another structure on demand with reprogrammable features. This concept extends the degree of morphing beyond that traditional shape‐morphing hydrogels, which predetermine their capabilities at fabrication stage. However, current polymorphing face limitations due to need for complex, non‐sustained responsiveness or additional chemical steps reconfigurable morphing. Here, photo‐reactive DNA‐cross‐linked are presented enable under patterned light. The DNA cross‐links act as a regulator in changing shapes by adjusting lengths depending wavelength light, allows precise and dynamic programmable way through one‐pot reaction. high programmability involving spatiotemporal controllability features offers advanced solutions multifunctional soft machines applications requiring complex processes.

Language: Английский

Recent Advances in 4D‐Printed Shape Memory Actuators DOI
Yusuf Olatunji Waidi

Macromolecular Rapid Communications, Journal Year: 2025, Volume and Issue: unknown

Published: Feb. 27, 2025

Abstract 4D printing, which combines the design freedom of 3D printing with responsiveness smart materials, is revolutionizing creation active structures. These structures can change shape in response to external stimuli, paving way for advancements robotics, biomedicine, and beyond. However, a comprehensive review article highlighting recent printed memory actuators (SMAAs) lacking. This explores exciting potential intelligent SMAAs. It examines concept materials used, like shape‐memory polymers (SMPs), alloys (SMAs), polymer composites (SMPCs). then dives into compatible techniques principles achieving programmed changes. Different categories SMAAs are explored, showcasing their applications diverse fields. The concludes by discussing challenges future directions, emphasizing massive creating next generation actuators, making it valuable resource researchers field.

Language: Английский

Citations

2
Smart responsive in situ hydrogel systems applied in bone tissue engineering DOI Creative Commons

Shunli Wu,

Tingting Gai,

Jie Chen

et al.

Frontiers in Bioengineering and Biotechnology, Journal Year: 2024, Volume and Issue: 12

Published: May 28, 2024

The repair of irregular bone tissue suffers severe clinical problems due to the scarcity an appropriate therapeutic carrier that can match dynamic and complex damage. Fortunately, stimuli-responsive in situ hydrogel systems are triggered by a special microenvironment could be ideal method regenerating because injectability, gelatin, spatiotemporally tunable drug release. Herein, we introduce two main stimulus-response approaches, exogenous endogenous, forming hydrogels engineering. First, summarize specific distinct responses extensive range external stimuli (e.g., ultraviolet, near-infrared, ultrasound, etc.) form created from biocompatible materials modified various functional groups or hybrid nanoparticles. Furthermore, “smart” hydrogels, which respond endogenous physiological environmental temperature, pH, enzyme, etc.), achieve gelation one injection vivo without additional intervention. Moreover, mild chemistry response-mediated also offer fascinating prospects engineering, such as Diels–Alder, Michael addition, thiol-Michael Schiff reactions, etc. recent developments challenges smart their application administration engineering discussed this review. It is anticipated advanced strategies innovative ideas will exploited field increase quality life for patients with

Language: Английский

Citations

11
Hydrogel-Based Continuum Soft Robots DOI Creative Commons
Honghong Wang, Jingli Du, Yi Mao

et al.

Gels, Journal Year: 2025, Volume and Issue: 11(4), P. 254 - 254

Published: March 27, 2025

This paper comprehensively reviews the latest advances in hydrogel-based continuum soft robots. Hydrogels exhibit exceptional flexibility and adaptability compared to traditional robots reliant on rigid structures, making them ideal as biomimetic robotic skins platforms for constructing highly accurate, real-time responsive sensory interfaces. The article systematically summarizes recent research developments across several key dimensions, including application domains, fabrication methods, actuator technologies, sensing mechanisms. From an perspective, span healthcare, manufacturing, agriculture. Regarding techniques, extensively explores crosslinking additive microfluidics, other related processes. Additionally, categorizes thoroughly discusses various actuators solute/solvent variations, pH, chemical reactions, temperature, light, magnetic fields, electric hydraulic/electro-osmotic stimuli, humidity. It also details strategies designing implementing diverse sensors, strain, pressure, humidity, conductive, magnetic, thermal, gas, optical, multimodal sensors. Finally, offers in-depth discussion of prospective applications robots, particularly emphasizing their potential medical industrial fields. Concluding remarks include a forward-looking outlook highlighting future challenges promising directions.

Language: Английский

Citations

0
Design of Gel‐Based Materials for Electromagnetic Wave Absorption DOI Open Access

Xiaojun Zeng,

Lishan Wu,

Xiaofen Yang

et al.

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

Published: March 20, 2025

Abstract Over the past 20 years, there is a shift of research and development in electromagnetic wave (EMW) absorption materials toward exploiting unique structure composition gel‐based based to manipulate EMWs. In this article, it will review by focusing on applications various gels for EMW absorption, including aerogels, hydrogels, xerogels, organic gels, as well ionogels. This study highlights some new mechanistic insights design strategies dielectric loss, magnetic electro‐magnetic loss absorbers. For an in‐depth understanding into these recent areas, discuss historic perspectives absorption. Especially, emphasizes advantages multifunctional Finally, pending current challenges prospects performance tuning absorber are presented.

Language: Английский

Citations

0
An Ultra‐Fast Rolling Double‐Helical Robot Driven by Constant Humidity DOI Creative Commons
Chuhan Xu, Jiayao Ma,

Lei Fu

et al.

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

Published: April 2, 2025

Untethered soft robots made of stimuli-responsive materials hold great application potential in various fields. However, most this type require artificial modulation the stimuli to actuate, while it is a challenge achieve fast periodic locomotion under constant external environment. Here, double-helical robot constructed with humidity-sensitive agarose (AG) films, referred as Dualicalbot proposed, which can rapidly roll humid environment by making two helices alternately bend absorbing humidity actuate half-cycles. A theoretical model built unveil deformation well correlation between design parameters and motion speed, based on reach maximum rolling speed 5.8 BL s-1. Moreover, capable carrying payload up 100% self-weight detecting acid rolls through. This work envisaged, more generally structural modeling principle, will open new avenue for development advanced robotics diverse functionalities.

Language: Английский

Citations

0
Advanced nanocomposites for 4D printing: High-performance electroactive shape memory polymers for smart applications DOI Creative Commons
Amal Megdich,

Mohamed Habibi,

Luc Laperrière

et al.

Applied Materials Today, Journal Year: 2025, Volume and Issue: 44, P. 102702 - 102702

Published: April 3, 2025

Language: Английский

Citations

0
A photothermal soft actuator based on graphene/PDMS composite materials reinforced by carbon fiber skeleton DOI Creative Commons
Jincong Chen, Xiaodong Zhao, Haiyan Zhao

et al.

AIMS Materials Science, Journal Year: 2025, Volume and Issue: 12(2), P. 301 - 317

Published: Jan. 1, 2025

Language: Английский

Citations

0
Multi-material digital light processing 4D printed soft actuator for controlled multi-modal deformation DOI
Hang Zhang, Shu Huang,

Youqing Zhang

et al.

Chemical Engineering Journal, Journal Year: 2025, Volume and Issue: unknown, P. 162877 - 162877

Published: April 1, 2025

Language: Английский

Citations

0
Direct ink writing of polymer‐based materials—A review DOI
Cuiyu Li, Changhong Feng, Lei Zhang

et al.

Polymer Engineering and Science, Journal Year: 2024, Volume and Issue: unknown

Published: Dec. 2, 2024

Abstract Additive manufacturing (AM) is widely recognized for its flexibility, structural complexity, customizability, and sustainability. Within the realm of AM technology, direct ink writing (DIW) stand out due to material diversity, high resolution, capacity free‐form design. It enjoys widespread applications in biomedicine engineering, making it a key advanced method crafting design‐free, multifunctional, stable items. Herein, review DIW polymer‐based materials presented. starts with an overview various fillers polymer composites, followed by in‐depth discussion diverse methods customizing across different classes. Subsequently, delves into emerging materials, encompassing their utility biology, electrical energy storage, electronics, robotics. Finally, addresses current challenges prospects associated DIW, aiming elucidate potential pathways future innovations. Highlights one most popular techniques 3D printing. Describes application recent years. Outlines advances hydrogels, 4D myriad materials. Discusses outlooks provide guidance future.

Language: Английский

Citations

3
Advances in 4D Bioprinting: The Next Frontier in Regenerative Medicine and Tissue Engineering Applications DOI Open Access
Sareh Abolhassani,

Roya Fattahi,

Farzaneh Safshekan

et al.

Advanced Healthcare Materials, Journal Year: 2024, Volume and Issue: 14(4)

Published: Dec. 29, 2024

4D bioprinting is a critical advancement in tissue engineering and regenerative medicine (TERM), enabling the creation of structures that dynamically respond to environmental stimuli over time. This review investigates various fabrication techniques responsive materials are central these fields. It underscores integration multi-material biocomposite approaches bioprinting, which crucial for fabricating complex functional constructs with heterogeneous properties. Using enhances mimicry natural characteristics, offering tailored responses improved biological systems. Furthermore, this study highlights synergy between demonstrates technology's potential developing tissues organs. In medicine, bioprinting's applications extend creating smart implants advanced drug delivery systems adapt body's changes, promoting healing regeneration. Finally, challenges future directions also explored emphasize its transformative impact on biomedical healthcare.

Language: Английский

Citations

2