Electronic Skin: Recent Progress and Future Prospects for Skin‐Attachable Devices for Health Monitoring, Robotics, and Prosthetics

Advanced Materials, Год журнала: 2019, Номер 31(48)

Опубликована: Сен. 19, 2019

Abstract Recent progress in electronic skin or e‐skin research is broadly reviewed, focusing on technologies needed three main applications: skin‐attachable electronics, robotics, and prosthetics. First, since will be exposed to prolonged stresses of various kinds needs conformally adhered irregularly shaped surfaces, materials with intrinsic stretchability self‐healing properties are great importance. Second, tactile sensing capability such as the detection pressure, strain, slip, force vector, temperature important for health monitoring attachable devices, enable object manipulation surrounding environment robotics For chemical electrophysiological wireless signal communication high significance fully gauge state users ensure user comfort. prosthetics, large‐area integration 3D surfaces a facile scalable manner critical. Furthermore, new processing strategies using neuromorphic devices efficiently process information parallel low power manner. neural interfacing electrodes These topics discussed, progress, current challenges, future prospects.

Язык: Английский

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Advanced Carbon for Flexible and Wearable Electronics

Advanced Materials, Год журнала: 2018, Номер 31(9)

Опубликована: Окт. 9, 2018

Abstract Flexible and wearable electronics are attracting wide attention due to their potential applications in human health monitoring care systems. Carbon materials have combined superiorities such as good electrical conductivity, intrinsic structural flexibility, light weight, high chemical thermal stability, ease of functionalization, well mass production, enabling them be promising candidate for flexible electronics. Consequently, great efforts devoted the controlled fabrication carbon with rationally designed structures next‐generation Herein, latest advances rational design toward reviewed. Various (carbon nanotubes, graphene, natural‐biomaterial‐derived carbon, etc.) micro/nanostructures macroscopic morphologies high‐performance introduced. The strategies, working mechanism, performance, carbon‐based devices reviewed discussed, including strain/pressure sensors, temperature/humidity electrochemical conductive electrodes/wires, power devices. Furthermore, integration multiple multifunctional systems is briefly Finally, existing challenges future opportunities this field summarized.

Язык: Английский

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Bio-Integrated Wearable Systems: A Comprehensive Review

Chemical Reviews, Год журнала: 2019, Номер 119(8), С. 5461 - 5533

Опубликована: Янв. 28, 2019

Bio-integrated wearable systems can measure a broad range of biophysical, biochemical, and environmental signals to provide critical insights into overall health status quantify human performance. Recent advances in material science, chemical analysis techniques, device designs, assembly methods form the foundations for uniquely differentiated type technology, characterized by noninvasive, intimate integration with soft, curved, time-dynamic surfaces body. This review summarizes latest this emerging field "bio-integrated" technologies comprehensive manner that connects fundamental developments chemistry, engineering sensing have potential widespread deployment societal benefit care. An introduction chemistries materials active components these contextualizes essential design considerations sensors associated platforms appear following sections. The subsequent content highlights most advanced biosensors, classified according their ability capture information. Additional sections feature schemes electrically powering strategies achieving fully integrated, wireless systems. concludes an overview key remaining challenges summary opportunities where chemistry will be critically important continued progress.

Язык: Английский

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Advanced Soft Materials, Sensor Integrations, and Applications of Wearable Flexible Hybrid Electronics in Healthcare, Energy, and Environment

Advanced Materials, Год журнала: 2019, Номер 32(15)

Опубликована: Июль 8, 2019

Abstract Recent advances in soft materials and system integration technologies have provided a unique opportunity to design various types of wearable flexible hybrid electronics (WFHE) for advanced human healthcare human–machine interfaces. The biocompatible with miniaturized wireless systems is undoubtedly an attractive prospect the sense that successful device performance requires high degrees mechanical flexibility, sensing capability, user‐friendly simplicity. Here, most up‐to‐date materials, sensors, system‐packaging develop WFHE are provided. Details mechanical, electrical, physicochemical, properties discussed integrated sensor applications healthcare, energy, environment. In addition, limitations current discussed, as well key challenges future direction WFHE. Collectively, all‐inclusive review newly developed along summary imperative requirements material properties, capabilities, performance, skin integrations

Язык: Английский

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Stretchable Ti₃C₂T_x MXene/Carbon Nanotube Composite Based Strain Sensor with Ultrahigh Sensitivity and Tunable Sensing Range

ACS Nano, Год журнала: 2017, Номер 12(1), С. 56 - 62

Опубликована: Дек. 5, 2017

It remains challenging to fabricate strain-sensing materials and exquisite geometric constructions for integrating extraordinary sensitivity, low strain detectability, high stretchability, tunable sensing range, thin device dimensions into a single type of sensor. A percolation network based on Ti3C2Tx MXene/carbon nanotube (CNT) composites was rationally designed fabricated versatile sensors. This weaving architecture with excellent electric properties combined the sensitive two-dimensional (2D) MXene nanostacks conductive stretchable one-dimensional (1D) CNT crossing. The resulting sensor can be used detect both tiny large deformations an ultralow detection limit 0.1% strain, stretchability (up 130%), sensitivity (gauge factor up 772.6), range (30% 130% strain), (<2 μm), reliability stability (>5000 cycles). scalable MXene/CNT sensors provide promising route future wearable artificial intelligence comprehensive tracking ability real-time in situ physiological signals health sporting applications.

Язык: Английский

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Nature-Inspired Structural Materials for Flexible Electronic Devices

Chemical Reviews, Год журнала: 2017, Номер 117(20), С. 12893 - 12941

Опубликована: Окт. 9, 2017

Exciting advancements have been made in the field of flexible electronic devices last two decades and will certainly lead to a revolution peoples' lives future. However, because poor sustainability active materials complex stress environments, new requirements adopted for construction devices. Thus, hierarchical architectures natural materials, which developed various environment-adapted structures through selection, can serve as guides solve limitations engineering techniques. This review covers smart designs structural inspired by their utility First, we summarize that accommodate mechanical deformations, is fundamental requirement work properly environments. Second, discuss functionalities induced nature-inspired including sensing, energy harvesting, physically interacting, so on. Finally, provide perspective on newly potential applications future devices, well frontier strategies biomimetic functions. These analyses summaries are valuable systematic understanding inspirations electronics.

Язык: Английский

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PDMS with designer functionalities—Properties, modifications strategies, and applications

Progress in Polymer Science, Год журнала: 2018, Номер 83, С. 97 - 134

Опубликована: Июнь 8, 2018

Язык: Английский

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Flexible and Multifunctional Silk Textiles with Biomimetic Leaf‐Like MXene/Silver Nanowire Nanostructures for Electromagnetic Interference Shielding, Humidity Monitoring, and Self‐Derived Hydrophobicity

Advanced Functional Materials, Год журнала: 2019, Номер 29(44)

Опубликована: Сен. 1, 2019

Abstract Although flexible and multifunctional textiles are promising for wearable electronics portable device applications, the main issue is to endow with multifunctionalities while maintaining their innate porous features. Herein, a vacuum‐assisted layer‐by‐layer assembly technique demonstrated conformally deposit electrically conductive substances on developing superb electromagnetic interference (EMI) shielding performances, superhydrophobicity, highly sensitive humidity response. The formed leaf‐like nanostructure composed of silver nanowires (AgNWs) as skeleton (vein) transition metal carbide/carbonitride (MXene) nanosheets lamina. presence MXene protects AgNWs from oxidation enhances combination fabric substrate, transformation its functional groups leads self‐derived hydrophobicity. textile exhibits low sheet resistance 0.8 Ω sq −1 , outstanding EMI efficiency 54 dB in X‐band at small thickness 120 µm, responses, retaining satisfactory porosity permeability. hydrophobicity large contact angle >140° achieved by aging hydrophilic coated silk. applications intelligent garments, sensors, actuators, shielding.

Язык: Английский

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Toward Perceptive Soft Robots: Progress and Challenges

Advanced Science, Год журнала: 2018, Номер 5(9)

Опубликована: Июль 13, 2018

Abstract In the past few years, soft robotics has rapidly become an emerging research topic, opening new possibilities for addressing real‐world tasks. Perception can enable robots to effectively explore unknown world, and interact safely with humans environment. Among all extero‐ proprioception modalities, detection of mechanical cues is vital, as living beings. A variety sensing technologies are available today, but there still a gap utilize them in practical applications. Here, developments summarized provide comprehensive understanding state art this field. Promising mechanically perceptive described, categorized, their pros cons discussed. Strategies designing sensors criteria evaluate performance outlined from perspective robotic Challenges trends developing multimodal sensors, stretchable conductive materials electronic interfaces, modeling techniques, data interpretation highlighted. The knowledge promising solutions toward discussed analyzed

Язык: Английский

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Microstructured Porous Pyramid-Based Ultrahigh Sensitive Pressure Sensor Insensitive to Strain and Temperature

ACS Applied Materials & Interfaces, Год журнала: 2019, Номер 11(21), С. 19472 - 19480

Опубликована: Май 6, 2019

An ultrahigh sensitive capacitive pressure sensor based on a porous pyramid dielectric layer (PPDL) is reported. Compared to that of the conventional layer, sensitivity was drastically increased 44.5 kPa-1 in range <100 Pa, an unprecedented for sensors. The enhanced attributed lower compressive modulus and larger change effective constant under pressure. By placing sensors islands hard elastomer embedded soft substrate, exhibited insensitivity strain. were also nonresponsive temperature. Finally, contact resistance-based demonstrated by chemically grafting PPDL with conductive polymer, which showed sensitivity.

Язык: Английский

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