Soft Robotics

Angewandte Chemie International Edition, Journal Year: 2018, Volume and Issue: 57(16), P. 4258 - 4273

Published: March 8, 2018

Abstract This description of “soft robotics” is not intended to be a conventional review, in the sense comprehensive technical summary developing field. Rather, its objective describe soft robotics as new field—one that offers opportunities chemists and materials scientists who like make “things” work with macroscopic objects move exert force. It will give one (personal) view what actuators robots are, how this class devices fits into more highly developed field “hard” robotics. also suggest why than simply minor “tweak” on hard propose unique role for chemistry, science, Soft is, at core, intellectually technologically different from robotics, both because it has objectives uses relies properties assume many roles played by sensors, actuators, controllers

Language: Английский

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Large‐Area All‐Textile Pressure Sensors for Monitoring Human Motion and Physiological Signals

Advanced Materials, Journal Year: 2017, Volume and Issue: 29(41)

Published: Sept. 26, 2017

Wearable pressure sensors, which can perceive and respond to environmental stimuli, are essential components of smart textiles. Here, large-area all-textile-based pressure-sensor arrays successfully realized on common fabric substrates. The textile sensor unit achieves high sensitivity (14.4 kPa-1 ), low detection limit (2 Pa), fast response (≈24 ms), power consumption (<6 µW), mechanical stability under harsh deformations. Thanks these merits, the is demonstrated be able recognize finger movement, hand gestures, acoustic vibrations, real-time pulse wave. Furthermore, fabricated one substrate spatially map tactile stimuli directly incorporated into a garment for stylish designs without sacrifice comfort, suggesting great potential in textiles or wearable electronics.

Language: Английский

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Recent advances in wearable tactile sensors: Materials, sensing mechanisms, and device performance

Materials Science and Engineering R Reports, Journal Year: 2017, Volume and Issue: 115, P. 1 - 37

Published: March 6, 2017

Language: Английский

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Enzyme‐Based Glucose Sensor: From Invasive to Wearable Device

Advanced Healthcare Materials, Journal Year: 2018, Volume and Issue: 7(8)

Published: Jan. 15, 2018

Abstract Blood glucose concentration is a key indicator of patients' health, particularly for symptoms associated with diabetes mellitus. Because the large number diabetic patients, many approaches measurement have been studied to enable continuous and accurate level monitoring. Among them, electrochemical analysis prominent because it simple quantitative. This technology has incorporated into commercialized research‐level devices from test strips wearable implantable systems. Although directly monitoring blood assures information, invasive needle‐pinching step collect often results in patients (particularly young patients) being reluctant adopt process. An sensor may avoid burden repeated collections, but quite requires periodic replacement owing biofouling its short lifetime. Therefore, noninvasive methods estimate levels tears, saliva, interstitial fluid (ISF), sweat are currently studied. review discusses evolution enzyme‐based sensors, including materials, device structures, fabrication processes, system engineering. Furthermore, using various biofluids or described, highlighting recent progress development sensors their integrated

Language: Английский

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Haptic-feedback smart glove as a creative human-machine interface (HMI) for virtual/augmented reality applications

Science Advances, Journal Year: 2020, Volume and Issue: 6(19)

Published: May 8, 2020

Human-machine interfaces (HMIs) experience increasing requirements for intuitive and effective manipulation. Current commercialized solutions of glove-based HMI are limited by either detectable motions or the huge cost on fabrication, energy, computing power. We propose haptic-feedback smart glove with triboelectric-based finger bending sensors, palm sliding sensor, piezoelectric mechanical stimulators. The detection multidirectional events is demonstrated in virtual space using self-generated triboelectric signals various degrees freedom human hand. also perform haptic stimulation via chips to realize augmented HMI. achieves object recognition machine learning technique, an accuracy 96%. Through integrated demonstration multidimensional manipulation, feedback, AI-based recognition, our reveals its potential as a promising solution low-cost advanced human-machine interaction, which can benefit diversified areas, including entertainment, home healthcare, sports training, medical industry.

Language: Английский

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Materials and Structures toward Soft Electronics

Advanced Materials, Journal Year: 2018, Volume and Issue: 30(50)

Published: Aug. 2, 2018

Soft electronics are intensively studied as the integration of with dynamic nonplanar surfaces has become necessary. Here, a discussion strategies in materials innovation and structural design to build soft electronic devices systems is provided. For each strategy, presentation focuses on fundamental science mechanics, example device applications highlighted where possible. Finally, perspectives key challenges future directions this field presented.

Language: Английский

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Multifunctional Skin‐Inspired Flexible Sensor Systems for Wearable Electronics

Advanced Materials Technologies, Journal Year: 2019, Volume and Issue: 4(3)

Published: Jan. 4, 2019

Abstract Skin‐inspired wearable devices hold great potentials in the next generation of smart portable electronics owing to their intriguing applications healthcare monitoring, soft robotics, artificial intelligence, and human–machine interfaces. Despite tremendous research efforts dedicated judiciously tailoring terms thickness, portability, flexibility, bendability as well stretchability, emerging Internet Things demand skin‐interfaced flexible systems be endowed with additional functionalities capability mimicking skin‐like perception beyond. This review covers highlights latest advances burgeoning multifunctional electronics, primarily including versatile multimodal sensor systems, self‐healing material‐based devices, self‐powered sensors. To render penetration human‐interactive into global markets households, economical manufacturing techniques are crucial achieve large‐scale high‐throughput capability. The booming innovations this field will push scientific community forward benefit human beings near future.

Language: Английский

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Wearable Microfluidic Diaphragm Pressure Sensor for Health and Tactile Touch Monitoring

Advanced Materials, Journal Year: 2017, Volume and Issue: 29(39)

Published: Aug. 18, 2017

Flexible pressure sensors have many potential applications in wearable electronics, robotics, health monitoring, and more. In particular, liquid-metal-based are especially promising as they can undergo strains of over 200% without failure. However, current strain incapable resolving small changes the few kPa range, making them unsuitable for such heart-rate which require a much lower detection resolution. this paper, microfluidic tactile diaphragm sensor based on embedded Galinstan microchannels (70 µm width × 70 height) capable sub-50 Pa with sub-100 limits response time 90 ms is demonstrated. An equivalent Wheatstone bridge circuit makes most tangential radial fields, leading to high sensitivities 0.0835 kPa-1 change output voltage. The also provides temperature self-compensation, allowing operation range 20-50 °C. As examples applications, polydimethylsiloxane (PDMS) wristband an real-time pulse monitoring PDMS glove multiple provide comprehensive feedback human hand when touching or holding objects

Language: Английский

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Nanomesh pressure sensor for monitoring finger manipulation without sensory interference

Science, Journal Year: 2020, Volume and Issue: 370(6519), P. 966 - 970

Published: Nov. 20, 2020

A soft touch Measuring the force it takes for a hand to grasp an object requires sensors be placed on fingertips, but these will interfere with or affect how much ends up being applied. Lee et al. developed nanomesh sensor built from series of electrospun materials (see Perspective by Liu). Using robotic tester, they show that this device can repeatably detect pressure involved in gripping object. They also attached human fingers and does not used Science , issue p. 966 ; see 910

Language: Английский

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Nanomaterial‐Enabled Wearable Sensors for Healthcare

Advanced Healthcare Materials, Journal Year: 2017, Volume and Issue: 7(1)

Published: Nov. 30, 2017

Abstract Highly sensitive wearable sensors that can be conformably attached to human skin or integrated with textiles monitor the physiological parameters of body surrounding environment have garnered tremendous interest. Owing large surface area and outstanding material properties, nanomaterials are promising building blocks for sensors. Recent advances in nanomaterial‐enabled including temperature, electrophysiological, strain, tactile, electrochemical, environmental presented this review. Integration multiple multimodal sensing integration other components into systems summarized. Representative applications healthcare, continuous health monitoring, daily sports activity tracking, multifunctional electronic highlighted. Finally, challenges, opportunities, future perspectives field discussed.

Language: Английский

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