Untethered small-scale magnetic soft robot with programmable magnetization and integrated multifunctional modules

Science Advances, Journal Year: 2022, Volume and Issue: 8(25)

Published: June 22, 2022

Intelligent magnetic soft robots capable of programmable structural changes and multifunctionality modalities depend on material architectures methods for controlling magnetization profiles. While some efforts have been made, there are still key challenges in achieving profile creating heterogeneous architectures. Here, we directly embed programmed patterns (magnetization modules) into the adhesive sticker layers to construct with profiles geometries then integrate spatially distributed functional modules. Functional modules including temperature ultraviolet light sensing particles, pH sheets, oil foams, positioning electronic component, circuit foils, therapy patch films integrated robots. These test beds used explore multimodal robot locomotion various applications related environmental detection, repairing, gastric ulcer coating, respectively. This proposed approach engineering modular systems has potential expand functionality, versatility, adaptability

Language: Английский

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Vascular smooth muscle-inspired architecture enables soft yet tough self-healing materials for durable capacitive strain-sensor

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

Published: Jan. 10, 2023

Catastrophically mechanical failure of soft self-healing materials is unavoidable due to their inherently poor resistance crack propagation. Here, with a model system, i.e., polyurea, we present biomimetic strategy surpassing trade-off between and high fracture toughness, enabling the conversion weak into yet tough material. Such an achievement inspired by vascular smooth muscles, where core-shell structured Galinstan micro-droplets are introduced through molecularly interfacial metal-coordinated assembly, resulting in increased crack-resistant strain toughness 12.2 34.9 times without sacrificing softness. The obtained up 111.16 ± 8.76 kJ/m2, even higher than that Al Zn alloys. Moreover, resultant composite delivers fast kinetics (1 min) upon local near-infrared irradiation, possesses ultra-high dielectric constants (~14.57), thus being able be fabricated sensitive capacitive strain-sensors tolerant towards cracks potentially evolved service.

Language: Английский

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Green Flexible Electronics: Natural Materials, Fabrication, and Applications

Advanced Materials, Journal Year: 2023, Volume and Issue: 35(28)

Published: Feb. 10, 2023

Abstract The emergence of plastic electronics satisfies the increasing demand for flexible electronics. However, it has caused severe ecological problems. Flexible based on natural materials are to hopefully realize “green” and eco‐friendly concept. Herein, recent advances in design fabrication green reviewed. First, this review comprehensively introduces various derivatives, focusing particularly fibroin silk, wood paper, plants, biomass. Second, techniques modifying materials, including physical chemical methods, presented, after which their merits demerits thoroughly discussed. Green comprising electrical wires/electrodes, antennas, thermal management devices, transistors, memristors, sensors, energy‐harvesting energy‐storage displays, actuators, electromagnetic shielding, integration systems, described detail. Finally, perspectives existing challenges opportunities employ presented.

Language: Английский

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Transparent Electronics for Wearable Electronics Application

Chemical Reviews, Journal Year: 2023, Volume and Issue: 123(16), P. 9982 - 10078

Published: Aug. 5, 2023

Recent advancements in wearable electronics offer seamless integration with the human body for extracting various biophysical and biochemical information real-time health monitoring, clinical diagnostics, augmented reality. Enormous efforts have been dedicated to imparting stretchability/flexibility softness electronic devices through materials science structural modifications that enable stable comfortable of these curvilinear soft body. However, optical properties are still early stages consideration. By incorporating transparency, visual from interfacing biological systems can be preserved utilized comprehensive diagnosis image analysis techniques. Additionally, transparency provides imperceptibility, alleviating reluctance wear device on exposed skin. This review discusses recent advancement transparent a way includes materials, processing, devices, applications. Materials discussed regarding their characteristics, synthesis, engineering strategies property enhancements. We also examine bridging techniques Building blocks systems, including sensors, energy actuators, displays, mechanisms performances. Lastly, we summarize potential applications conclude remaining challenges prospects.

Language: Английский

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3D-printed PEDOT:PSS for soft robotics

Nature Reviews Materials, Journal Year: 2023, Volume and Issue: 8(9), P. 604 - 622

Published: Aug. 24, 2023

Language: Английский

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Sensing in Soft Robotics

ACS Nano, Journal Year: 2023, Volume and Issue: 17(16), P. 15277 - 15307

Published: Aug. 2, 2023

Soft robotics is an exciting field of science and technology that enables robots to manipulate objects with human-like dexterity. can handle delicate care, access remote areas, offer realistic feedback on their handling performance. However, increased dexterity mechanical compliance soft come the need for accurate control position shape these robots. Therefore, must be equipped sensors better perception surroundings, location, force, temperature, shape, other stimuli effective usage. This review highlights recent progress in sensing technologies robotic applications. It begins introduction actuation material selection robotics, followed by in-depth exploration various types sensors, integration methods, benefits multimodal sensing, signal processing, strategies. A short description current market leaders also included illustrate growing demands this technology. By examining latest advancements robots, aims highlight potential inspire innovation field.

Language: Английский

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Locally controllable magnetic soft actuators with reprogrammable contraction-derived motions

Science Advances, Journal Year: 2022, Volume and Issue: 8(25)

Published: June 24, 2022

Reprogrammable magneto-responsive soft actuators capable of working in enclosed and confined spaces adapting functions under changing situations are highly demanded for new-generation smart devices. Despite the promising prospect, realization versatile morphing modes (more than bending) local magnetic control remains challenging but is crucial further on-demand applications. Here, we address challenges by maximizing unexplored potential magnetothermal responsiveness covalent adaptable networks (CANs) liquid crystalline elastomers (LCEs). Various magneto-actuated contraction-derived motions that were hard to achieve previously (e.g., bidirectional shrinkage dynamic 3D patterns) can be attained, reprogrammed, assembled seamlessly endow functional diversity complexity. By integration LCEs with different threshold values, sequential readily realized. Many actuation portfolios performed rationally imputing “logic switch” sequences. Meanwhile, our systems exhibit additional favorable performances including stepwise controllability, multiresponsiveness, self-healing, remolding ability.

Language: Английский

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Smart micro- and nanorobots for water purification

Nature Reviews Bioengineering, Journal Year: 2023, Volume and Issue: 1(4), P. 236 - 251

Published: Feb. 6, 2023

Language: Английский

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Conductive and elastic bottlebrush elastomers for ultrasoft electronics

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

Published: Feb. 4, 2023

Abstract Understanding biological systems and mimicking their functions require electronic tools that can interact with tissues matched softness. These involve biointerfacing materials should concurrently match the softness of tissue exhibit suitable electrical conductivities for recording reading bioelectronic signals. However, commonly employed intrinsically soft stretchable usually contain solvents limit stability long-term use or possess low conductivity. To date, an ultrasoft (i.e., Young’s modulus <30 kPa), conductive, solvent-free elastomer does not exist. Additionally, integrating such conductive into devices is poorly explored. This article reports a solvent-free, PDMS bottlebrush (BBE) composite single-wall carbon nanotubes (SWCNTs) as fillers. The SWCNT/BBE filler concentration 0.4 − 0.6 wt% reveals ultralow (<11 kPa) satisfactory conductivity (>2 S/m) well adhesion property. Furthermore, we fabricate electronics based on laser cutting 3D printing non-conductive BBEs demonstrate potential applications in wearable sensing, robotics, electrophysiological recording.

Language: Английский

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Artificial Neuron Devices

Chemical Reviews, Journal Year: 2023, Volume and Issue: 123(23), P. 13796 - 13865

Published: Nov. 17, 2023

Efforts to design devices emulating complex cognitive abilities and response processes of biological systems have long been a coveted goal. Recent advancements in flexible electronics, mirroring human tissue's mechanical properties, hold significant promise. Artificial neuron devices, hinging on artificial synapses, bioinspired sensors, actuators, are meticulously engineered mimic the systems. However, this field is its infancy, requiring substantial groundwork achieve autonomous with intelligent feedback, adaptability, tangible problem-solving capabilities. This review provides comprehensive overview recent devices. It starts fundamental principles synaptic explores sensory systems, integrating synapses sensors replicate all five senses. A systematic presentation nervous follows, designed emulate system functions. The also discusses potential applications outlines existing challenges, offering insights into future prospects. We aim for illuminate burgeoning inspiring further innovation captivating area research.

Language: Английский

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