Advances in Shape‐Memory Polymers and Composites for Biomedical Device Applications

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

Published: Jan. 29, 2025

Over the past two decades, remarkable advancements have been achieved in stimulus‐responsive shape‐memory polymers (SMPs), which exhibit desirable properties such as characteristics, deformability, and biocompatibility, while responding to external stimuli. The development of polymer composites (SMPCs) leads high recovery forces novel functionalities, including electrical actuation, magnetic biocompatibility. enhanced remotely controllable functionality further expand application SMPs biomedical areas, surgical applications for replacing handheld instruments drug delivery systems. In this review, device SMPCs are focused on their recent bone tissue scaffolds, lumen stents, carriers examined. Furthermore, bottlenecks challenges encountered by devices elucidated. future trend is also discussed, aiming provide valuable insights broadening fields.

Language: Английский

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A comprehensive review on 4D printing and applications of thermo-induced shape memory polymers

International Journal of Smart and Nano Materials, Journal Year: 2025, Volume and Issue: unknown, P. 1 - 60

Published: Jan. 31, 2025

Thermo-induced Shape Memory Polymers (TSMPs) and their corresponding 4D printing technology are at the forefront of current research. In this work, we review progress from TSMPs to applications. Firstly, taking thermally activated as an example, shape memory behavior is explained, various experiments mechanisms, well constitutive models, discussed. This comprehensive information designed provide a solid understanding TSMPs. Moreover, history technologies used in introduced, potential methods summarized. These insights can guide researchers selecting appropriate techniques for practical The applications printed then outlined, with focus on metamaterials industry cases that clear what achieve. knowledge will open new doors innovative Finally, research status summarized, existing gaps future development directions pointed out. Through review, aim offer journey so support further promotion field smart materials.

Language: Английский

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Automated Fabrication of 3D Printed Magnetic Soft Robots With Programmable 3D Magnetizations

Published: Feb. 2, 2025

Magnetic soft robots (MSRs) are a viable tool for many biomedical applications, such as targeted drug delivery and minimally invasive surgery, since they can be actuated remotely using external magnetic fields. These developed by programming ferromagnetic domains with specific magnetizations particles embedded in flexible substrate. Existing fabrication methods rely on partially automated or manual processes, which limit production rates realistic design iterations. To address these challenges, fully workflow that translates robot simulations into an instruction set stereolithography 3D printer is presented. In this process, rotating permanent magnet used to program reorienting hard within photosensitive resin. Geometric resolutions of 1.6 mm achieved layer height 0.1 mm, enabling the creation structures 14 layers thick. Beam bending tests identify optimal 6:1 resin‐to‐magnetic particle mass ratio, yielding maximum deflection angle 80°. Demonstrated applications include rolling climbing locomotion maze independent control each arm multiarmed robot. By fast, repeatable MSRs 30 min, system shortens feedback loop from application, advancing their potential tool.

Language: Английский

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4d Printing of Novel Polybenzimidazole-Containing Structures with Exceptional Radiation Resistance and Mechanical Properties

Published: Jan. 1, 2025

Language: Английский

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Academic Insights and Future Prospects of Soft Robotics: Architecture, Material, Control and Application

Journal of the Indian Institute of Science, Journal Year: 2025, Volume and Issue: unknown

Published: Feb. 19, 2025

Language: Английский

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