Soft Robotic‐Adapted Multimodal Sensors Derived from Entirely Intrinsic Self‐Healing and Stretchable Cross‐Linked Networks

Advanced Functional Materials, Journal Year: 2023, Volume and Issue: 33(44)

Published: July 6, 2023

Abstract Flexible sensing technologies that play a pivotal role in endowing robots with detection capabilities and monitoring their motions are impulsively desired for intelligent robotics systems. However, integrating constructing reliable sustainable flexible sensors multifunctionality remains an everlasting challenge. Herein, entirely intrinsic self‐healing, stretchable, attachable multimodal sensor is developed can be conformally integrated soft to identify diverse signals. The dynamic bonds cross‐linked networks including the insulating polymer conductive hydrogel good comprehensive performances designed fabricate prolonged lifespan improved reliability. Benefiting from self‐adhesiveness of hydrogel, strong interfacial bonding formed on various surfaces, which promotes conformable integration robots. Due ionic transportation mechanism, detect strain temperature based piezoresistive thermoresistive effect, respectively. Moreover, work triboelectric mode achieve self‐powered sensing. Various information identified electrical signals generated by sensor, hand gestures, robot crawling motions, message code, objects, type materials, holding great promise fields environmental detection, wearable devices, human‐machine interfacing, robotics.

Language: Английский

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Self-protection soft fluidic robots with rapid large-area self-healing capabilities

Nature Communications, Journal Year: 2023, Volume and Issue: 14(1)

Published: Oct. 13, 2023

Soft fluidic robots have attracted a lot of attention and broad application prospects. However, poor power source easy to damage been hindering their development, while the lack intelligent self-protection also brings inconvenience applications. Here, we design diversified soft that integrate electrohydrodynamic pumps, actuators, healing electrofluids, E-skins. We develop high-performance enabling high-speed actuation large deformation untethered robots. A electrofluid can form self-healed film with excellent stretchability strong adhesion is synthesized, which achieve rapid large-areas-damage self-healing materials. propose multi-functional E-skins endow intelligence, making realize series behaviors. Moreover, our allow functionality be enhanced by combination electrodes or actuators. This strategy enables self-protection, opening door for physical intelligence.

Language: Английский

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Large‐Area Knittable, Wash‐Durable, and Healable Smart Fibers for Dual‐Modal Sensing Applications

Advanced Functional Materials, Journal Year: 2024, Volume and Issue: 34(40)

Published: April 15, 2024

Abstract Fiber‐based multimodal sensors with electrical/optical signals are highly desired for next‐generation wearable electronics. Despite the remarkable progress in this area, achieving large‐scale knittable, washable, and self‐healing performance fiber‐based simultaneously remains a great challenge. Here, smart fiber capable of exhibiting piezoresistive/luminescent properties based on an H‐bonding connected multilayered core–shell nanostructure is developed. The core principle design involves constructing strong interfacial interactions between layers, which results sensor high sensitivity (gauge factor = 12383500), exceptional water resistance, robust (tensile strength 30.9 MPa, healing efficiency 72.9%). Unlike traditional where elaborate nanostructures prone to shedding during knitting, strategy enables excellent knittability be patterned fabric, improving both optical electrical sensitivities. This work anticipated make significant contribution further development electronic products visual human–computer interaction devices.

Language: Английский

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Liquid-free ionic conductive elastomers with high mechanical properties and ionic conductivity for multifunctional sensors and triboelectric nanogenerators

Materials Horizons, Journal Year: 2024, Volume and Issue: 11(9), P. 2191 - 2205

Published: Jan. 1, 2024

A healing liquid-free polyurethane-based ionic conductive elastomer (SS 50 DA –LiTFSI 80% ) with high mechanical properties and conductivity was synthesized by combining double dynamic covalent bonding non-covalent interactions.

Language: Английский

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Towards high performance and durable soft tactile actuators

Chemical Society Reviews, Journal Year: 2024, Volume and Issue: 53(7), P. 3485 - 3535

Published: Jan. 1, 2024

Soft actuators are gaining significant attention due to their ability provide realistic tactile sensations in various applications. However, soft nature makes them vulnerable damage from external factors, limiting actuation stability and device lifespan. The susceptibility becomes higher with these often direct contact surroundings generate feedback. Upon onset of damage, the or repeatability will be undermined. Eventually, when complete failure occurs, disposed of, accumulating waste driving consumption natural resources. This emphasizes need enhance durability for continued operation. review presents principles feedback actuators, followed by a discussion mechanisms, advancements, challenges faced realize high performance, categorized stimuli. Diverse approaches achieve evaluated, including self-healing, resistance, self-cleaning, temperature actuators. In sections, current potential material designs identified, paving way developing durable

Language: Английский

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Minsight: A Fingertip‐Sized Vision‐Based Tactile Sensor for Robotic Manipulation

Advanced Intelligent Systems, Journal Year: 2023, Volume and Issue: 5(8)

Published: April 25, 2023

Intelligent interaction with the physical world requires perceptual abilities beyond vision and hearing; vibrant tactile sensing is essential for autonomous robots to dexterously manipulate unfamiliar objects or safely contact humans. Therefore, robotic manipulators need high‐resolution touch sensors that are compact, robust, inexpensive, efficient. The soft vision‐based haptic sensor presented herein a miniaturized optimized version of previously published Insight. Minsight has size shape human fingertip uses machine learning methods output maps 3D force vectors at 60 Hz. Experiments confirm its excellent performance, mean absolute error 0.07 N location 0.6 mm across surface area. Minsight's utility shown in two tasks on 3‐DoF manipulator. First, closed‐loop control enables robot track movements finger based only data. Second, informative value by detecting whether hard lump embedded within elastomer an accuracy 98%. These findings indicate can give detailed needed dexterous manipulation human–robot interaction.

Language: Английский

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Toward mechanically robust self-healing polyurethanes using dynamics chemistry

Materials Chemistry Frontiers, Journal Year: 2024, Volume and Issue: 8(7), P. 1767 - 1791

Published: Jan. 1, 2024

Recent advances in the design strategy, healing mechanism, and potential applications of mechanically robust self-healing PU elastomers.

Language: Английский

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A review on soft pneumatic actuators with integrated or embedded soft sensors

Sensors and Actuators A Physical, Journal Year: 2024, Volume and Issue: 372, P. 115364 - 115364

Published: April 9, 2024

Language: Английский

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Digital Light Processing of Soft Robotic Gripper with High Toughness and Self‐Healing Capability Achieved by Deep Eutectic Solvents

Advanced Functional Materials, Journal Year: 2024, Volume and Issue: 34(24)

Published: Feb. 16, 2024

Abstract Inspired by nature's flexible and adaptable organisms, soft robotics are motorless robots made from highly compliant materials to work in confined environments manipulate delicate objects. However, often suffer early failure because of unexpected damage. At the same time, it is challenging manufacture geometrically complex structures robots. This study introduces resins based on deep eutectic solvents (DES) fabricate a pneumatically driven gripper using digital light processing (DLP). The consist choline chloride (ChCl) as hydrogen bond acceptor, glycerol (Gly), acrylamide (AAm) donors. By utilizing intense bonding within DES, resin can be rapidly cured photopolymerization form tough ionogels without chemical crosslinkers. DES exhibit remarkable toughness self‐healing performance compared common hydrogels. Furthermore, show not only efficient energy‐dissipating behavior but also achieve rapid self‐recovery. Finally, DLP‐printed DES‐based performs successful actuation healing macroscopic damages. presents simple strategy 3D print robotic with high capability.

Language: Английский

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Inherently integrated microfiber-based flexible proprioceptive sensor for feedback-controlled soft actuators

npj Flexible Electronics, Journal Year: 2024, Volume and Issue: 8(1)

Published: March 7, 2024

Abstract For the accurate and continuous control of soft actuators in dynamic environments, movements must be monitored real-time. To this end, various capable self-monitoring have been developed by separately integrating sensing devices into actuators. However, such heterogeneous components results structural complexity, high manufacturing costs, poor interfacial stability. Here, we report on intelligent pneumatic fiber-reinforced with an inherent flexible proprioceptive sensor that uses only essential typical The is achieved leveraging two parallel conductive microfibers around elastomeric chamber actuator, which simultaneously acts as both a capacitive bending radial expansion limiting fibers actuator exhibits excellent mechanical actuation up to 240° motion performance sensitivity 1.2 pF rad −1 . Mathematical analysis simulations can effectively predict responses against input pressures. We demonstrate used construct gripping system prosthetic hand express gestures perform dexterous manipulation real-time capability.

Language: Английский

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