Instant variable stiffness in cardiovascular catheters based on fiber jamming DOI Creative Commons
Yi Sun, Yegor Piskarev,

Etienne H. Hofstetter

et al.

Science Advances, Journal Year: 2025, Volume and Issue: 11(6)

Published: Feb. 7, 2025

Variable stiffness (VS) has revolutionized miniature surgical instruments, including cardiovascular catheters for minimally invasive surgeries (MISs), enabling advanced capabilities in modulation and multi-curvature bending. However, existing VS with phase-changing materials are slow softening stiffening rates (≈90 s), which can lead to substantial increase surgery duration. To address the change, we propose a catheter based on fiber jamming (FJ) that achieves instant changes (≤300 ms), seamless operations without delays. Moreover, our catheter, incorporating hundreds of ultrathin fibers into slender 2.3-mm body, up 6.5-fold changes. With adequate two-segment complex bending profiles within seconds. In addition, FJ-based design does not require electric currents or heating inside human minimizing patient risks. This instantaneous response, enhanced safety, potentially establish benchmarks MIS, allowing medical practitioners effectively formidable diseases.

Language: Английский

3D printing of magneto-active smart materials for advanced actuators and soft robotics applications DOI Creative Commons
Muhammad Yasir Khalid, Zia Ullah Arif, Ali Tariq

et al.

European Polymer Journal, Journal Year: 2024, Volume and Issue: 205, P. 112718 - 112718

Published: Jan. 2, 2024

In the contemporary era, novel manufacturing technologies like additive (AM) have revolutionized different engineering sectors including biomedical, aerospace, electronics, etc. Four-dimensional (4D) printing aka AM of smart materials is gaining popularity among scientific community, which has excellent ability to make soft structures such as robots, actuators, and grippers. These are developed by applying various stimuli pH, temperature, magnetic field, many combinations onto materials. Stimuli in 3D permit shape-morphing behaviors bending, twisting, folding, swelling, rolling, shrinking, origami, or locomotion. A wide variety can be fabricated through incorporation hard particles into resulting magneto-active (MASMs). With this integration, magneto-thermal coupling actuation allows diverse magneto-deformations, facilitating development personalized devices that capable enhanced deformation. review, guidelines provided on for MASMs polymers (MAPs), composites, hydrogels (MAHs) booming flexible wearable biomimetic devices. Moreover, 3D-printed robotics an outstanding capacity adapt complicated situations advanced actuating applications. Finally, some current challenges emerging areas exciting technology been proposed. Lastly, it anticipated technological advancements developing intelligent will a significant impact design real-world

Language: Английский

Citations

88
Fiberbots: Robotic fibers for high-precision minimally invasive surgery DOI Creative Commons
Mohamed E. M. K. Abdelaziz, Jinshi Zhao, Bruno M. G. Rosa

et al.

Science Advances, Journal Year: 2024, Volume and Issue: 10(3)

Published: Jan. 19, 2024

Precise manipulation of flexible surgical tools is crucial in minimally invasive procedures, necessitating a miniature and robotic probe that can precisely direct the instruments. In this work, we developed polymer-based fiber with thermal actuation mechanism by local heating along sides single fiber. The robot was fabricated highly scalable drawing technology using common low-cost materials. This low-profile (below 2 millimeters diameter) exhibits remarkable motion precision 50 micrometers) repeatability. We control algorithms coupling endoscopic instruments, demonstrating high-resolution situ molecular morphological tissue mapping. assess its practicality safety during vivo laparoscopic surgery on porcine model. High-precision delivered endoscopically facilitates effective use cellular-level intraoperative identification ablation technologies, potentially enabling precise removal cancer challenging sites.

Language: Английский

Citations

24
Metareview: a survey of active matter reviews DOI Creative Commons
Michael te Vrugt, Raphael Wittkowski

The European Physical Journal E, Journal Year: 2025, Volume and Issue: 48(2)

Published: Feb. 1, 2025

In the past years, amount of research on active matter has grown extremely rapidly, a fact that is reflected in particular by existence more than 1000 reviews this topic. Moreover, field become very diverse, ranging from theoretical studies statistical mechanics particles to applied work medical applications microrobots and biological systems artificial swimmers. This makes it difficult get an overview over as whole. Here, we provide such form metareview article surveys existing review articles books matter. Thereby, provides useful starting point for finding literature about specific

Language: Английский

Citations

3
A Review of Recent Manufacturing Technologies for Sustainable Soft Actuators DOI Creative Commons
Mohammadreza Lalegani Dezaki, Mahdi Bodaghi

International Journal of Precision Engineering and Manufacturing-Green Technology, Journal Year: 2023, Volume and Issue: 10(6), P. 1661 - 1710

Published: July 13, 2023

Abstract Soft actuators have brought significant advancements to robotics, allowing robots perform a diverse range of tasks across various domains. However, the increased use soft has resulted in negative environmental impacts, including material consumption, waste generation, and energy consumption. To address these challenges, research is increasingly focused on developing sustainable (SSAs) that can provide high performance while minimizing harm. This review article aims explore development manufacturing SSAs their potential reduce consumption promoting sustainability. The examines categories actuators, such as multi-responsive ones, shape-locking variants, biological water-responsive models, well implementation through multi-material printing and, 3D 4D techniques. also highlights applications SSAs, manufacturing, human–machine interaction, locomotion, manipulation. Furthermore, explores methods for reducing using recycled materials eco-friendly processes circular economy. Finally, study provides comprehensive analysis steer evolution robotics towards more future

Language: Английский

Citations

32
Recent Advances in Electrospinning Techniques for Precise Medicine DOI Creative Commons
Wei Li, Yue Yin, Huaijuan Zhou

et al.

Cyborg and Bionic Systems, Journal Year: 2024, Volume and Issue: 5

Published: Jan. 1, 2024

In the realm of precise medicine, advancement manufacturing technologies is vital for enhancing capabilities medical devices such as nano/microrobots, wearable/implantable biosensors, and organ-on-chip systems, which serve to accurately acquire analyze patients’ physiopathological information perform patient-specific therapy. Electrospinning holds great promise in engineering materials components advanced devices, due demonstrated ability advance development nanomaterial science. Nevertheless, challenges limited composition variety, uncontrollable fiber orientation, difficulties incorporating fragile molecules cells, low production effectiveness hindered its further application. To overcome these challenges, electrospinning techniques have been explored manufacture functional composites, orchestrated structures, living constructs, scale-up fabrication. This review delves into recent advances underscores their potential revolutionizing field upon introducing fundamental conventional techniques, well discussing current future perspectives.

Language: Английский

Citations

15
Focused ultrasound enables selective actuation and Newton-level force output of untethered soft robots DOI Creative Commons
Bo Hao, Xin Wang, Yue Dong

et al.

Nature Communications, Journal Year: 2024, Volume and Issue: 15(1)

Published: June 18, 2024

Abstract Untethered miniature soft robots have significant application potentials in biomedical and industrial fields due to their space accessibility safe human interaction. However, the lack of selective forceful actuation is still challenging revolutionizing unleashing versatility. Here, we propose a focused ultrasound-controlled phase transition strategy for achieving millimeter-level spatially Newton-level force robots, which harnesses ultrasound-induced heating trigger inside robot, enabling powerful through inflation. The spatial resolution empowers single robot perform multiple tasks according specific requirements. As concept-of-demonstration, designed liquid cargo delivery biopsy tissue acquisition patching. Additionally, an autonomous control system integrated with ultrasound imaging enable automatic acoustic field alignment control. proposed method advances spatiotemporal response capability untethered holding promise broadening versatility adaptability.

Language: Английский

Citations

12
Modeling magnetic soft continuum robot in nonuniform magnetic fields via energy minimization DOI
Jiyu Li, Liu Wang

International Journal of Mechanical Sciences, Journal Year: 2024, Volume and Issue: 282, P. 109688 - 109688

Published: Aug. 29, 2024

Language: Английский

Citations

10
Nano-/Microrobots for Environmental Remediation in the Eyes of Nanoarchitectonics: DOI Creative Commons
Anna Jančík Procházková, Katsuhiko Ariga

Research, Journal Year: 2025, Volume and Issue: 8

Published: Jan. 1, 2025

Nano-/microrobots have been demonstrated as an efficient solution for environmental remediation. Their strength lies in their propulsion abilities that allow active “on-the-fly” operation, such pollutant detection, capture, transport, degradation, and disruption. Another advantage is versatility, which allows the engineering of highly functional solutions a specific application. However, latter can bring complexity to applications; versatility dimensionality, morphology, materials, surface decorations, other modifications has crucial effect on resulting abilities, compatibility with environment, overall functionality. Synergy between decorations its projection functionality object nanoarchitectonics. Here, we scrutinize nano-/microrobots eyes nanoarchitectonics: list general concepts help assess synergy limitations individual procedures fabrication processes operation at macroscale. The nanoarchitectonics approached from microscopic level, focusing dimensionality through nanoscopic evaluating influence decoration nanoparticles quantum dots, moving molecular single-atomic level very fine tuning presented review aims lay provide overview advanced nano-/microrobot remediation beyond.

Language: Английский

Citations

2
Magnetic Soft Matter toward Programmable and Multifunctional Miniature Machines DOI Creative Commons
Neng Xia, Dongdong Jin, Li Zhang

et al.

Accounts of Materials Research, Journal Year: 2024, Volume and Issue: 5(2), P. 173 - 183

Published: Jan. 22, 2024

ConspectusMiniature machines that are highly controllable have received widespread attention due to their potential applications in smart medicine and micromanipulation, especially those developed based on soft matter. The inherent compliance of matter can enhance the adaptability miniature a complex working environment or objects being manipulated. Furthermore, with rapid development materials science control technology, emergence various responsive matters has promoted remote even autonomous actuation capabilities as well reconfigurable properties. Despite burgeoning efforts devoted programming precise machines, exploration is still its infancy. Due nonlinearity response active matter, comprehensive understanding modeling deformation needed. Besides, systematic study on-demand material components physical properties at submillimeter, micro-, nanoscale levels also important. Hence, more in-depth research composition, mechanisms, methods needed promote construction novel practical future.Based regulation fields chemical substances, demonstrate shape-morphing without restraint. Among stimulation methods, magnetic strategy possesses outstanding advantages terms safety, controllability, penetration depth, which endow huge fundamental engineering applications. Programmable provides powerful platform explore patterns locomotion behaviors nature. Under action nonuniform torques generated by programmable stimulation, could undergo series morphological transformations. promising solution for developing optimized speed energy density. Therefore, through exquisite assembly structural design, composed compatible many application scenarios, biomedical engineering.In this Account, we provide overview recent significant advancements achieved our group others First, elucidate interaction mechanism between diverse agents available matrices including polymer matrices, liquid non-Newtonian fluids. We then illustrate encoding heterogeneous magnetization profile particle orientation, 3D transformations under (e.g., origami kirigami deformation, surface Gaussian curvature). Next, discussed, focusing devices, flexible electronics. Finally, an outlook prospects opportunities future

Language: Английский

Citations

9
Insect‐Scale Biped Robots Based on Asymmetrical Friction Effect Induced by Magnetic Torque DOI Creative Commons
Jinsheng Zhao, Xin Chen, Jiaqi Zhu

et al.

Advanced Materials, Journal Year: 2024, Volume and Issue: 36(24)

Published: March 11, 2024

Abstract Multimodal and controllable locomotion in complex terrain is of great importance for practical applications insect‐scale robots. Robust plays a particularly critical role. In this study, mechanism magnetic robots based on asymmetrical friction effect induced by torque revealed defined. The defined overcomes the design constraints imposed both robot substrate structures, enabling realization multimodal terrains. Drawing inspiration from human walking running locomotion, biped proposed, which not only exhibits rapid across substrates with varying coefficients but also achieves precise along patterned trajectories through programmed controlling. Furthermore, apart its exceptional locomotive capabilities, demonstrates remarkable robustness terms load‐carrying weight‐bearing performance. presented herein introduce novel concept designing while offering extensive possibilities robotics.

Language: Английский

Citations

9