Light-driven Lattice Soft Microrobot with Multimodal Locomotion DOI Creative Commons
Wei Xiong, Mingduo Zhang, Yuncheng Liu

et al.

Research Square (Research Square), Journal Year: 2024, Volume and Issue: unknown

Published: Dec. 24, 2024

Abstract Untethered microrobots hold significant promise in fields such as bionics, biomedicine, and micromechanics. However, replicating the diverse movements of natural microorganisms artificial presents a considerable challenge. This paper introduces laser-based approach that utilizes lattice metamaterials to enhance deformability hydrogel-based microrobots, resulting untethered light-driven soft (LSMR). Constructed from single-walled carbon nanotubes-poly(N-isopropylacrylamide) hydrogels truncated octahedron structure, LSMR benefits reduced relative density, which increases flexibility accelerates deformation. By employing sequential laser scanning, achieves various locomotion modes, including linear peristalsis, situ rotation, hopping, through adjustments scanning frequency, trajectory, power. The remarkable continuous rotation speed 29.38°/s, nearly 30 times faster than previous studies, exhibits fastest peristaltic among sub-millimeter scale microrobots. can autonomously perform programmed motions under closed-loop feedback control navigate narrow openings small 75% its resting width by actively deforming. Compared solid structure design enhances energy conversion efficiency 16.49 identical conditions. These advancements mark leap forward functionality offering promising avenues for future research micromechanical engineering.

Language: Английский

Recent Advances in Twisted and Coiled Artificial Muscles and Their Applications DOI Creative Commons
J. F. Sun, Shijing Zhang, Jie Deng

et al.

Published: Feb. 17, 2025

ABSTRACT Twisted and coiled artificial muscles (TAMs) have been extensively studied in the field of soft robots due to their exceptional properties, including high energy density, large load‐to‐weight ratio, deformation, low driving voltage, hysteresis. The advancements TAMs hold potential for enhancing performance broadening functional capabilities robots, thus demonstrating substantial practical value. This review outlines recent progress diverse applications robots. First, commonly used materials fabricate TAMs, inorganic fibers, composite organic natural are discussed along with characteristics. Then, actuation strategies summarized across four aspects: thermal method, solvent electrochemical method other non‐contact methods. Moreover, configurations classified into single, parallel braided structures. In addition, various driven by introduced according functions, manipulation, locomotion, smart textile, sensor. Finally, research hotspots development trends evaluated. It is expected that this article can serve as a valuable reference source inspiration researchers actuators

Language: Английский

Citations

1
SERS-Active Micro/Nanomachines for Biosensing DOI Creative Commons

Chenbing Li,

Wenqing Zhang,

Kai Zheng

et al.

Biosensors, Journal Year: 2025, Volume and Issue: 15(2), P. 115 - 115

Published: Feb. 16, 2025

Surface-enhanced Raman spectroscopy (SERS) has emerged as a powerful noninvasive analytical technique with widespread applications in biochemical analysis and biomedical diagnostics. The need for highly sensitive, reproducible, efficient detection of biomolecules complex biological environments driven significant advancements SERS-based biosensing platforms. In this context, micro/nanomachines (MNMs) have garnered attention versatile SERS-active substrates due to their unique structural motional characteristics at the micro- nanoscale. This review explores advantages integrating MNMs SERS biosensing, discussing recent technological advances, various propulsion strategies, potential range applications.

Language: Английский

Citations

0
Magnetic Continuum Robot for Intelligent Manipulation in Medical Applications DOI Creative Commons
Yuntao Ma, Xuanyu An,

Qijun Yang

et al.

Published: April 3, 2025

ABSTRACT Magnetic continuum robots (MCRs) have garnered substantial attention as a new class of flexible robotic systems capable navigating complex and confined spaces with remarkable dexterity. By combining continuous, deformable structures remotely applied magnetic fields, MCRs achieve contactless, remote manipulation, making them well‐suited for medical applications. This review introduces recent advances in MCR research, focusing on design principles, structural configurations, control strategies. Various designs structures, including those integrated permanent magnets, matter, ferromagnetic sphere, micro coil, are discussed. Furthermore, different actuation platforms introduced, the level automation is classified based Key intelligent manipulation capabilities MCRs, navigation, delivery, printing, grasping, imaging, sensing explored. Finally, future development priorities directions identified to provide insights advancing systems.

Language: Английский

Citations

0
Micro/Nanorobotics in Environmental Water Governance: Nanoengineering Strategies for Pollution Control DOI Creative Commons

Y. Gan,

Bin Wang, Yuan Lu

et al.

Small Structures, Journal Year: 2025, Volume and Issue: unknown

Published: April 6, 2025

The significance of micro/nanorobotics in environmental water governance is underscored by the escalating challenge pollution, demanding innovative solutions for efficient and selective pollutant removal. These tiny yet powerful devices, with their ability to detect, capture, degrade pollutants, signify a groundbreaking shift from traditional treatment methods more precise, efficient, sustainable approaches. This review delineates advancements micro/nanorobotics, emphasizing diverse propulsion mechanisms functionalities tailored specific tasks, including degradation microplastics, organic inactivation harmful microorganisms. With focus on integration photocatalytic, magnetic, self‐propelled capabilities, text highlights potential these robots revolutionize processes. Furthermore, it acknowledges challenges faced scalability, cost‐effectiveness, compatibility, urging future research toward developing adaptable, eco‐friendly, robotic systems. not only elucidates current but also charts course where intelligent, dynamically controlled systems become central management, offering crucial insights guiding next wave innovations field.

Language: Английский

Citations

0
Light-driven Lattice Soft Microrobot with Multimodal Locomotion DOI Creative Commons
Wei Xiong, Mingduo Zhang, Yuncheng Liu

et al.

Research Square (Research Square), Journal Year: 2024, Volume and Issue: unknown

Published: Dec. 24, 2024

Abstract Untethered microrobots hold significant promise in fields such as bionics, biomedicine, and micromechanics. However, replicating the diverse movements of natural microorganisms artificial presents a considerable challenge. This paper introduces laser-based approach that utilizes lattice metamaterials to enhance deformability hydrogel-based microrobots, resulting untethered light-driven soft (LSMR). Constructed from single-walled carbon nanotubes-poly(N-isopropylacrylamide) hydrogels truncated octahedron structure, LSMR benefits reduced relative density, which increases flexibility accelerates deformation. By employing sequential laser scanning, achieves various locomotion modes, including linear peristalsis, situ rotation, hopping, through adjustments scanning frequency, trajectory, power. The remarkable continuous rotation speed 29.38°/s, nearly 30 times faster than previous studies, exhibits fastest peristaltic among sub-millimeter scale microrobots. can autonomously perform programmed motions under closed-loop feedback control navigate narrow openings small 75% its resting width by actively deforming. Compared solid structure design enhances energy conversion efficiency 16.49 identical conditions. These advancements mark leap forward functionality offering promising avenues for future research micromechanical engineering.

Language: Английский

Citations

0