Programmable Multiresponse Marangoni Actuator Enabled by a PINPAM/MWCNT Composite Material

Langmuir, Journal Year: 2025, Volume and Issue: unknown

Published: Feb. 11, 2025

Inspired by natural organisms, actuators have shown great promise for small swimming robots. However, previous single-stimulus-driven studies limited their effectiveness in complex aquatic environments. In this study, a PINPAM/MWCNT composite actuator was developed. This can be controlled both light and chemical agents to achieve rapid drift on the water surface. It enables programmable trajectory motion water, capable of performing maneuvers such as linear translation, turning, rotation, particularly under infrared light. dovetail configurations, movement control corresponding achieved through agent actuation. The horn-shaped actuator, modeled after horns, propel transport cargos an illumination. Notably, circular spontaneously traverse U-shaped curve without external stimuli. multistimulus-responsive Marangoni significantly broadens application scope miniature actuators, paving new avenues microrobotics inspiring future advancements biomimetic robotics.

Language: Английский

Bidirectional Bending Soft Actuator with Multistimuli Responsiveness for Environmental Pollutant Monitoring

ACS Applied Materials & Interfaces, Journal Year: 2025, Volume and Issue: unknown

Published: April 22, 2025

Soft actuators have emerged as promising tools for environmental monitoring; however, most existing suffer from multistimuli cross-sensitivity and limited adaptability across various environments. Herein, we propose a bilayer soft actuator composed of graphene-doped polydimethylsiloxane (G@PDMS) layer poly(vinylidene fluoride) (PVDF) layer, capable effective deformation in both air aqueous environments while exhibiting selective responsiveness. The demonstrates responsiveness to organic solvents/vapors, thermal radiation, infrared (IR) radiation air, achieving bidirectional under stimuli with remarkable bending angle 630° load capacity 180 times its self-weight. In environments, the exhibits minimal response IR light but shows high selectivity rapid specific pollutants, time just 1.77 s dichloromethane. Leveraging these properties, developed series functional actuators─including Miura origami, airfoil, artificial muscle configurations─demonstrating their capability replicate complex movements. Moreover, water lily-inspired multienvironmental was designed effectively shield against underwater temperature fluctuations, light, nontarget solvent interference, showing cross-insensitivity potential real-time monitoring applications.

Language: Английский

Bionic learning in MXene-based actuators: An emerging frontier

Advances in Colloid and Interface Science, Journal Year: 2025, Volume and Issue: unknown, P. 103525 - 103525

Published: April 1, 2025

Language: Английский