Recent Progress in Flexible Tactile Sensors for Human‐Interactive Systems: From Sensors to Advanced Applications

Advanced Materials, Год журнала: 2021, Номер 33(47)

Опубликована: Апрель 22, 2021

Abstract Flexible tactile sensors capable of measuring mechanical stimuli via physical contact have attracted significant attention in the field human‐interactive systems. The utilization information can complement vision and/or sound interaction and provide new functionalities. Recent advancements micro/nanotechnology, material science, technology resulted development high‐performance that reach even surpass sensing ability human skin. Here, important advances flexible over recent years are summarized, from sensor designs to system‐level applications. This review focuses on representative strategies based design configurations for improving key performance parameters including sensitivity, detection range/linearity, response time/hysteresis, spatial resolution/crosstalk, multidirectional force detection, insensitivity other stimuli. System‐level integration practical applications beyond conceptual prototypes promising applications, such as artificial electronic skin robotics prosthetics, wearable controllers electronics, bidirectional communication tools, also discussed. Finally, perspectives issues regarding further provided.

Язык: Английский

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Technologies toward next generation human machine interfaces: From machine learning enhanced tactile sensing to neuromorphic sensory systems

Applied Physics Reviews, Год журнала: 2020, Номер 7(3)

Опубликована: Авг. 31, 2020

With the prospect of a smart society in foreseeable future, humans are experiencing an increased link to electronics digital world, which can benefit our life and productivity drastically. In recent decades, advances Human Machine Interface (HMI) have improved from tactile sensors, such as touchpads joysticks, now include accurate detection dexterous body movements more diversified sophisticated devices. Advancements highly adaptive machine learning techniques, neural interfaces, neuromorphic sensing generated potential for economic feasible solution next-generation applications wearable HMIs with intimate multi-directional capabilities. This review offers general knowledge HMI technologies beginning sensors their piezoresistive, capacitive, piezoelectric, triboelectric mechanisms. A further discussion is given on how learning, be used enhance upcoming 5 G infrastructure advancements internet things artificial intelligence near future. The efficient interactions kinetic physiological signals human through fusion sensor will bring revolution both advanced manipulation medical rehabilitation.

Язык: Английский

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Physical sensors for skin‐inspired electronics

InfoMat, Год журнала: 2019, Номер 2(1), С. 184 - 211

Опубликована: Дек. 3, 2019

Abstract Skin, the largest organ in human body, is sensitive to external stimuli. In recent years, an increasing number of skin‐inspired electronics, including wearable implantable and electronic skin, have been developed because their broad applications healthcare robotics. Physical sensors are one key building blocks electronics. Typical physical include mechanical sensors, temperature humidity electrophysiological so on. this review, we systematically review latest advances sensors. The working mechanisms, materials, device structures, performance various summarized discussed detail. Their health monitoring, disease diagnosis treatment, intelligent robots reviewed. addition, several novel properties such as versatility, self‐healability, implantability introduced. Finally, existing challenges future perspectives for practical proposed. image

Язык: Английский

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Recent Advances in Organic and Organic–Inorganic Hybrid Materials for Piezoelectric Mechanical Energy Harvesting

Advanced Functional Materials, Год журнала: 2022, Номер 32(17)

Опубликована: Янв. 12, 2022

Abstract This article provides a comprehensive overview of piezo‐ and ferro‐electric materials based on organic molecules organic–inorganic hybrids for mechanical energy harvesting. Molecular (organic hybrid) ferroelectric exhibit significant advantages over traditional due to their simple solution‐phase synthesis, light‐weight nature, thermal stability, flexibility, high Curie temperature, attractive properties. However, the design understanding ferroelectricity in hybrid piezoelectric harvesting applications is less well developed. review describes fundamental characterization range recently reported materials. The limits are outlined, followed by an properties materials, composites, An extensive description peptide‐based other biomolecular as biofriendly alternative current also provided. Finally, limitations future perspectives this emerging area research highlighted. perspective aims guide chemists, scientists, engineers practically useful composites

Язык: Английский

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Recent Advances in Carbon Material‐Based Multifunctional Sensors and Their Applications in Electronic Skin Systems

Advanced Functional Materials, Год журнала: 2021, Номер 31(40)

Опубликована: Июль 11, 2021

Abstract Electronic skin (e‐skin) is driving significant advances in flexible electronics as it holds great promise health monitoring, human–machine interfaces, soft robotics, and so on. Flexible sensors that can detect various stimuli or have multiple properties play an indispensable role e‐skin. Despite tremendous research efforts devoted to with excellent performance regarding a certain sensing mode property, emerging e‐skin demands multifunctional be endowed the skin‐like capability beyond. Considering outstanding superiorities of electrical conductivity, chemical stability, ease functionalization, carbon materials are adopted implement sensors. In this review, latest carbon‐based regard types detection modes abundant introduced. The corresponding preparation process, device structure, mechanism, obtained performance, intriguing applications highlighted. Furthermore, diverse systems by integrating current cutting‐edge technologies (e.g., data acquisition transmission, neuromorphic technology, artificial intelligence) systematically investigated detail. Finally, existing problems future developing directions also proposed.

Язык: Английский

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3D Printing of Highly Sensitive and Large-Measurement-Range Flexible Pressure Sensors with a Positive Piezoresistive Effect

ACS Applied Materials & Interfaces, Год журнала: 2020, Номер 12(25), С. 28669 - 28680

Опубликована: Май 29, 2020

Piezoresistive composite-based flexible pressure sensors often suffer from a trade-off between the sensitivity and measurement range. Moreover, or range is theoretically limited owing to negative piezoresistive coefficient, resulting in resistance variation below 100%. Here, were fabricated using three-dimensional (3D) printing technique improve both sensing through positive effect. With addition of carbon nanotubes (CNTs) fumed silica nanoparticles (SiNPs) as conductive filler rheology modifier, respectively, viscoelastic silicone rubber solution converted printable gel ink. Soft porous composites (SPCs) then directly printed air at room temperature. The SPC-based sensor can be simultaneously tuned by adjusting conducting CNT insulating SiNP contents. By optimizing density network matrix, (+0.096 kPa-1) large linear (0-175 kPa) obtained. To demonstrate potential applications, completely soft was successfully used grasp gait monitoring systems. 3D also assembled smart artificial sensory array map distribution.

Язык: Английский

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Recent Advances in Multiresponsive Flexible Sensors towards E‐skin: A Delicate Design for Versatile Sensing

Small, Год журнала: 2021, Номер 18(7)

Опубликована: Ноя. 25, 2021

Abstract Multiresponsive flexile sensors with strain, temperature, humidity, and other sensing abilities serving as real electronic skin (e‐skin) have manifested great application potential in flexible electronics, artificial intelligence (AI), Internet of Things (IoT). Although numerous sole function already been reported since the concept e‐skin, that mimics features human skin, was proposed about a decade ago, ones more capacities new emergences are urgently demanded. However, highly integrated sensitive multiresponsive functions becoming big thrust for detection body motions, physiological signals (e.g., blood pressure, electrocardiograms (ECG), electromyograms (EMG), sweat, etc.) environmental stimuli light, magnetic field, volatile organic compounds (VOCs)), which vital to real‐time all‐round health monitoring management. Herein, this review summarizes design, manufacturing, presents future challenges fabricating these next‐generation e‐skin wearable electronics.

Язык: Английский

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Flexible, superhydrophobic, and electrically conductive polymer nanofiber composite for multifunctional sensing applications

Chemical Engineering Journal, Год журнала: 2019, Номер 381, С. 122778 - 122778

Опубликована: Сен. 9, 2019

Язык: Английский

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Low cost exoskeleton manipulator using bidirectional triboelectric sensors enhanced multiple degree of freedom sensory system

Nature Communications, Год журнала: 2021, Номер 12(1)

Опубликована: Май 11, 2021

Abstract Rapid developments of robotics and virtual reality technology are raising the requirements more advanced human-machine interfaces for achieving efficient parallel control. Exoskeleton as an assistive wearable device, usually requires a huge cost complex data processing to track multi-dimensional human motions. Alternatively, we propose triboelectric bi-directional sensor universal cost-effective solution customized exoskeleton monitoring all movable joints upper limbs with low power consumption. The corresponding movements, including two DOF rotations shoulder, twisting wrist, bending motions, detected utilized controlling character robotic arm in real-time. Owing structural consistency between body, further kinetic analysis offers additional physical parameters without introducing other types sensors. This sensory system shows great potential being economic interface supporting manipulation both real worlds, automation, healthcare, training applications.

Язык: Английский

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Recent Advancements in Development of Wearable Gas Sensors

Advanced Materials Technologies, Год журнала: 2021, Номер 6(3)

Опубликована: Фев. 4, 2021

Abstract In the era of Internet Things, wearable technologies are expected to become an indispensable part daily life. recent times, highly sensitive, flexible, and stretchable electronic gas sensors gaining tremendous interest due their applicability in electronics applications. The construction reviewed for real‐time, selective detection hazardous gases at room temperature (RT) that can be laminated onto a human body or integrated with body‐worn textile other consumer products, utilizing carbon nanomaterials, conductive polymers, 2D nanostructured materials, composites. Sensing transduction techniques, substrates high‐performance sensing discussed detail. critical challenges future development presented. Wearable believed have great potential environmental monitoring, healthcare, public safety, security, as well food quality monitoring.

Язык: Английский

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