Neuro-inspired electronic skin for robots

Science Robotics, Journal Year: 2022, Volume and Issue: 7(67)

Published: June 8, 2022

Touch is a complex sensing modality owing to large number of receptors (mechano, thermal, pain) nonuniformly embedded in the soft skin all over body. These can gather and encode tactile data, allowing us feel perceive real world. This efficient somatosensation far outperforms touch-sensing capability most state-of-the-art robots today suggests need for neural-like hardware electronic (e-skin). could be attained through either innovative schemes developing distributed electronics or repurposing neuromorphic circuits developed other sensory modalities such as vision audio. Review highlights implementations various computational building blocks e-skin ways they integrated potentially realize human skin-like peripheral nervous system-like functionalities. The data processing are discussed along with algorithms architectures. integration ultrathin chips local computation printed on substrate used development areas expected advance robotic interaction well open new avenues research medical instrumentation, wearables, electronics, neuroprosthetics.

Language: Английский

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Self‐Powered Active Sensing Based on Triboelectric Generators

Advanced Materials, Journal Year: 2022, Volume and Issue: 34(33)

Published: April 21, 2022

Abstract The demand for portable and wearable chemical or biosensors their expeditious development in recent years has created a scientific challenge terms of continuous powering. As result, mechanical energy harvesters such as piezoelectric triboelectric generators (TEGs) have been explored recently either sensors to store charge small, but long‐life, energy‐storage devices power the sensors. use is particularly interesting, with multifunctional operations it possible reduce number needed system, which also helps overcome integration complexities. In this regard, TEGs are promising, autonomous biological sensors, they can be developed wide variety materials, electricity conversion modulated by various analytes. This review focuses on interesting dimension presents self‐powered active A brief discussion about TEG‐based physical, magnetic, optical included. influence environmental factors, figures merit, significance TEG design explained context sensing. Finally, key applications, challenges, future perspective detection via discussed view drive further advances field

Language: Английский

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Screen-printed graphene-carbon ink based disposable humidity sensor with wireless communication

Sensors and Actuators B Chemical, Journal Year: 2022, Volume and Issue: 374, P. 132731 - 132731

Published: Sept. 23, 2022

Humidity sensing is crucial for several industrial, environmental, and healthcare applications, many of which require sensors in flexible form factors with features such as disposability facile fabrication processes. Herein, we present a flexible, cost-effective, disposable humidity sensor developed on paper substrate. The screen-printed graphene-carbon (G-C) ink-based demonstrates good performance terms change resistance (∼12.4 Ω/%RH) ranging from 25%RH to 91.7%RH. displays high flexibility (studied at bending radiuses 40 mm, 30 25 20 mm), appreciable stability (> 4 months), repeatability 100 cycles), short response/recovery time (∼4 s/∼6 s towards respiration rate monitoring) reproducibility (minor variations ∼ ± 1 Ω/%RH). efficacy fabricated evaluated spatial monitoring, soil moisture monitoring. Finally, the real monitoring also demonstrated via wireless transmission data smartphone display potential agricultural, applications.

Language: Английский

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Electronic Waste Reduction Through Devices and Printed Circuit Boards Designed for Circularity

IEEE Journal on Flexible Electronics, Journal Year: 2022, Volume and Issue: 1(1), P. 4 - 23

Published: Jan. 1, 2022

The development of printed circuit boards (PCBs) has so far followed a traditional linear economy value chain, leading to high volumes waste production and loss at the end-of-life. Consequentially, electronics industry requires transition more sustainable practices. This review article presents an overview potential solutions new opportunities that may arise from greater use emerging materials resource-efficient manufacturing. A brief contextual summary about how international management PCBs (WPCBs) legalization have evolved over past 20 years is presented along with existing used in PCBs. environmental human health assessments these relative their usage are also explained. enables identification which ecofriendly technologies will be needed improve sustainability industry. Following this, comprehensive analysis WPCB processing presented. Finally, detailed provided, been partitioned by It hoped this discussion transform manufacturing facilities inform policies, currently focus on management, toward reduction zero waste.

Language: Английский

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Skin‐Inspired Thermoreceptors‐Based Electronic Skin for Biomimicking Thermal Pain Reflexes

Advanced Science, Journal Year: 2022, Volume and Issue: 9(27)

Published: July 25, 2022

Electronic systems possessing skin-like morphology and functionalities (electronic skins [e-skins]) have attracted considerable attention in recent years to provide sensory or haptic feedback growing areas such as robotics, prosthetics, interactive systems. However, the main focus thus far has been on distributed pressure force sensors. Herein a thermoreceptive e-skin with biological like functionality is presented. The soft, distributed, highly sensitive miniaturized (≈700 µm

Language: Английский

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Wearable triboelectric devices for haptic perception and VR/AR applications

Nano Energy, Journal Year: 2022, Volume and Issue: 96, P. 107112 - 107112

Published: March 5, 2022

Language: Английский

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Stretchable and All-Directional Strain-Insensitive Electronic Glove for Robotic Skins and Human–Machine Interfacing

ACS Nano, Journal Year: 2023, Volume and Issue: 17(9), P. 8355 - 8366

Published: April 3, 2023

Electronic gloves (e-gloves), with their multifunctional sensing capability, hold a promising application in robotic skin and human–machine interfaces, endowing robots human sense of touch. Despite the progress developing e-gloves by exploiting flexible or stretchable sensors, existing models have inherent rigidity area, limiting stretchability performance. Herein, we present an all-directional strain-insensitive e-glove that successfully extends functionality such as pressure, temperature, humidity, ECG minimal crosstalk. A scalable facile method is demonstrated combining low-cost CO2 laser engraving electrospinning technology to fabricate multimodal sensors vertical architecture. In comparison other smart gloves, proposed features ripple-like meandering area interconnections are designed stretch response applied deformation, without affecting performance offering full mechanical stretchability. Furthermore, CNT-coated laser-engraved graphene (CNT/LEG) used active material which cross-linking network CNT LEG minimizes stress effect maximizes sensitivity sensors. The fabricated can detect hot/cold, moisture, pain simultaneously precisely, while also allowing for remote transmission sensory data user.

Language: Английский

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Soft Sensors and Actuators for Wearable Human–Machine Interfaces

Chemical Reviews, Journal Year: 2024, Volume and Issue: 124(4), P. 1464 - 1534

Published: Feb. 5, 2024

Haptic human-machine interfaces (HHMIs) combine tactile sensation and haptic feedback to allow humans interact closely with machines robots, providing immersive experiences convenient lifestyles. Significant progress has been made in developing wearable sensors that accurately detect physical electrophysiological stimuli improved softness, functionality, reliability, selectivity. In addition, soft actuating systems have developed provide high-quality by precisely controlling force, displacement, frequency, spatial resolution. this Review, we discuss the latest technological advances of actuators for demonstration HHMIs. We particularly focus on highlighting material structural approaches enable desired sensing properties necessary effective Furthermore, promising practical applications current HHMI technology various areas such as metaverse, robotics, user-interactive devices are discussed detail. Finally, Review further concludes discussing outlook next-generation technology.

Language: Английский

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Skin-integrated stretchable actuators toward skin-compatible haptic feedback and closed-loop human-machine interactions

npj Flexible Electronics, Journal Year: 2023, Volume and Issue: 7(1)

Published: Jan. 11, 2023

Abstract Skin-integrated haptic interfaces that can relay a wealth of information from the machine to human are great interest. However, existing devices not yet able produce cues compatible with skin. In this work, we present stretchable soft actuators for feedback, which match perception range, spatial resolution, and stretchability Pressure-amplification structures fabricated using scalable self-assembly process ensure an output pressure beyond skin threshold. Due minimized device size, actuator array be sufficiently high makes applicable locations highest acuity. A feedback system is demonstrated by employing developed highly sensitive sensors. Two proof-of-concept applications illustrate capability transferring related surface textures object shapes acquired at robot side user side.

Language: Английский

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Human-Centered Interaction in Virtual Worlds: A New Era of Generative Artificial Intelligence and Metaverse

International Journal of Human-Computer Interaction, Journal Year: 2024, Volume and Issue: unknown, P. 1 - 43

Published: Feb. 27, 2024

The metaverse has emerged as an exciting new paradigm for human-computer interaction (HCI) and virtual collaboration. This paper presents a comprehensive review of the to address gap in existing literature where there is lack survey that reviews nature its building blocks from human-centric perspective. We first synthesize definition delineate key affordances. then introduce detailed framework encompassing metaverse's nature, infrastructure technologies, input/output technologies facilitate multi-sensory HCI, alongside applications across diverse domains. components within this are explained depth, offering insights into readiness level current technologies. Based on analysis, we outline major open challenges propose promising directions demanding further exploration investigation. By clarifying vision characterizing required realize it, provides essential serves invaluable resource developers researchers working advance transformative medium.

Language: Английский

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