Photothermal-driven water-gliding microrobots based on fully integrated flexible sensors with heterogeneous wettability

Soft Science, Journal Year: 2025, Volume and Issue: 5(2)

Published: Feb. 22, 2025

Bionic water strider robots (BWSRs) have been a hot spot in research due to their unique biological inspiration and versatile applications environmental monitoring. However, creating aquatic micro-robots with combined structure function that can walk freely perceive information on surfaces remains challenge. Herein, self-propelled integrated microrobots be remotely controlled by light wireless environment detection are designed fabricated combining the actuating polydimethylsiloxane (PDMS)/carbon nanotube (CNT) substrate heterogeneous wettability fully sensors. The generates thrust through photothermal Marangoni effect, serving as propulsion system for this water-gliding microrobot. design features robot hydrophobic body four hydrophilic footpads. creates an air gap between device water, providing waterproof protection electronics, making move faster smaller power enabling greater load-carrying capacity. footpads help stand firmly resisting overturn waves also enable modular assembly robots. load ability of typical is 1,089% its weight, resulting manufacture visible sensors Bluetooth (BT) chips steered near-infrared laser. Hopefully, strategy shall develop untethered sophisticated actuation sensing complex environments.

Language: Английский

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Artificial synapse‐based intelligent light‐controlled liquid crystal network actuators

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

Published: March 12, 2025

Abstract Various forms of intelligent light‐controlled soft actuators and robots rely on advanced material architectures bionic systems to enable programmable remote actuation multifunctionality. Despite advancements, significant challenges remain in developing that can effectively mimic the low‐intensity, wide‐wavelength light signal sensing processing functions observed living organisms. Herein, we report a design strategy integrates light‐responsive artificial synapses (AS) with liquid crystal networks (LCNs) create LCN (AS‐LCNs). Remarkably, AS‐LCNs be controlled intensities as low 0.68 mW cm −2 , value comparable intensity perceivable by human eye. These perform sensing, learning, memory within wide wavelength range from 365 nm 808 nm. Additionally, our system demonstrates time‐related proofs concept for tachycardia alarm porcupine defense behavior simulation. Overall, this work addresses limitations traditional reception processing, paving way development emulate cognitive abilities image

Language: Английский

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Encapsulation technique and application progress of polydopamine-based stimulus-responsive microcapsules

Chemical Engineering Journal, Journal Year: 2024, Volume and Issue: 500, P. 157357 - 157357

Published: Nov. 1, 2024

Language: Английский

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Fabrication of Hydroxyl Modified Hollow Glass Microsphere Composite Isocyanate‐Based Polyimide Foam and Optimization Strategy Based on Different Bonding Mechanisms

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

Published: Nov. 13, 2024

ABSTRACT In this study, the hydroxyl modified hollow glass microsphere (HM‐HGM) is added to different foaming slurries of isocyanate‐based polyimide foam (IBPIF) at varying ratios, and bonding effects are formed optimize dispersion behavior. Then, novel HGM composited IBPIF (IBPIF/HGM) prepared. Hydroxyl groups on HM‐HGM establish hydrogen effect with pyromellitic acid dimethyl ester formamide in white slurry react isocyanate black slurry. The cell structure altered improve its sound absorption performance mechanical behaviors. Compared IBPIF/HGM‐0, average size IBPIF/HGM‐1 BPIF/HGM‐5 decreases significantly. behaviors them improved some extent. samples which alone a single slurry, when dosage ratio 1:1, IBPIF/HGM‐3 has more uniform structure. change by introduction unique can enhance IBPIF. design idea mechanisms significantly provides technical assistance acoustic polymeric materials.

Language: Английский

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Multiphase Janus Azobenzene Inverse Opal Membrane toward On-Demand Photocontrolled Motion

ACS Applied Materials & Interfaces, Journal Year: 2024, Volume and Issue: unknown

Published: Dec. 18, 2024

Azobenzene actuators have generated extensive research investment in the field of soft robots, artificial muscles, etc., based on typical photoresponsive trans-cis isomerization. However, it remains challenging to achieve multiphase actuation at gas–liquid interface and liquid phase. To solve these problems, this paper demonstrated a simple fabrication method Janus azobenzene inverse opal membrane with one side having polydomain structure other monodomain bulk polymer. The introduction an increases interaction area between polymer network. proposed design can freely swim any direction air–liquid Marangoni effect or move forward phase bubble propulsion under UV irradiation. This work is great significance for photo actuators.

Language: Английский

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