Biocompatible Material‐Based Flexible Biosensors: From Materials Design to Wearable/Implantable Devices and Integrated Sensing Systems

Small, Journal Year: 2023, Volume and Issue: 19(27)

Published: April 3, 2023

Abstract Human beings have a greater need to pursue life and manage personal or family health in the context of rapid growth artificial intelligence, big data, Internet Things, 5G/6G technologies. The application micro biosensing devices is crucial connecting technology personalized medicine. Here, progress current status from biocompatible inorganic materials organic composites are reviewed material‐to‐device processing described. Next, operating principles pressure, chemical, optical, temperature sensors dissected these flexible biosensors wearable/implantable discussed. Different systems acting vivo vitro, including signal communication energy supply then illustrated. potential in‐sensor computing for applications sensing also Finally, some essential needs commercial translation highlighted future opportunities considered.

Language: Английский

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Advances in flexible sensors for intelligent perception system enhanced by artificial intelligence

InfoMat, Journal Year: 2023, Volume and Issue: 5(5)

Published: March 23, 2023

Abstract Intelligent perception means that with the assistance of artificial intelligence (AI)‐motivated brain, flexible sensors achieve ability memory, learning, judgment, and reasoning about external information like human brain. Due to superiority machine learning (ML) algorithms in data processing intelligent recognition, systems possess match or even surpass systems. However, built‐in these need work on dynamic irregular surfaces, inevitably affecting precision fidelity acquired data. In recent years, strategy introducing developed functional materials innovative structures into has made some progress toward above challenges, blessing ML algorithms, accurate various scenarios have been achieved. Here, most representative for constructing are comprehensively reviewed, research based is further summarized, intersection two expected unlock new opportunities next‐stage AI development. image

Language: Английский

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A Review on PVDF Nanofibers in Textiles for Flexible Piezoelectric Sensors

ACS Applied Nano Materials, Journal Year: 2023, Volume and Issue: 6(3), P. 1522 - 1540

Published: Jan. 20, 2023

Textiles are turning into a suitable next-generation sensing platform because of their good breathability, softness, and structural elasticity. Besides, research on self-powered piezoelectric sensors is hot topic in wearable applications; they can perform long-term monitoring. Therefore, this paper mainly reviews the development progress PVDF-based textiles flexible sensors. In paper, we first introduce principle effect classification materials; then summarize structure characteristics nanofiber mat-based, yarn-based, fabric-based approaches that employed to fabricate textile such as melt spinning, electrospinning, stretch forming processes, so on. At last, review applicability application electronic skin, human–computer interaction, healthcare, human movement monitoring demonstrate facing difficulties future directions

Language: Английский

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Bioinspired flexible, breathable, waterproof and self-cleaning iontronic tactile sensors for special underwater sensing applications

Nano Energy, Journal Year: 2023, Volume and Issue: 110, P. 108367 - 108367

Published: March 22, 2023

Language: Английский

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Bioinspired Dual‐Mode Stretchable Strain Sensor Based on Magnetic Nanocomposites for Strain/Magnetic Discrimination

Small, Journal Year: 2022, Volume and Issue: 19(1)

Published: Nov. 17, 2022

Abstract Recently, flexible stretchable sensors have been gaining attention for their excellent adaptability electronic skin applications. However, the preparation of strain that achieve dual‐mode sensing while still retaining ultra‐low detection limit strain, high sensitivity, and low cost is a pressing task. Herein, high‐performance sensor (DMSSS) based on biomimetic scorpion foot slit microstructures multi‐walled carbon nanotubes (MWCNTs)/graphene (GR)/silicone rubber (SR)/Fe 3 O 4 nanocomposites proposed, which can accurately sense magnetic stimuli. The DMSSS exhibits large range (≈160%), sensitivity up to 100.56 (130–160%), an (0.16% strain), superior durability (9000 cycles stretch/release). recognize sign language movement, as well realize object proximity information perception whole process monitoring. Furthermore, human joint movements micro‐expressions be monitored in real‐time. Therefore, this work opens promising prospects applications pose recognition, non‐contact sensing, human‐computer interaction, skin.

Language: Английский

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Biomimetic Electronic Skin for Robots Aiming at Superior Dynamic-Static Perception and Material Cognition Based on Triboelectric-Piezoresistive Effects

Nano Letters, Journal Year: 2024, Volume and Issue: 24(13), P. 4002 - 4011

Published: March 25, 2024

Empowering robots with tactile perception and even thinking as well judgment capabilities similar to those of humans is an inevitable path for the development future robots. Here, we propose a biomimetic electronic skin (BES) that truly serves applies achieve superior dynamic-static material cognition functionalities. First, microstructured triboelectric piezoresistive layers are fabricated by facile template method followed selected self-polymerization treatment, enabling BES high sensitivity wide detection range. Further, through laminated-independent parts perceiving dynamic static pressures simultaneously, capable supporting robot hand monitor entire process during object grasping. Most importantly, further combining neural network model, intelligent system constructed real-time species via one touch under arbitrary pressures, which goes beyond human ability.

Language: Английский

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Versatile Ion‐Gel Fibrous Membrane for Energy‐Harvesting Iontronic Skin

Advanced Functional Materials, Journal Year: 2023, Volume and Issue: 33(37)

Published: May 14, 2023

Abstract Developing versatile and high sensitivity sensors is beneficial for promoting flexible electronic devices human‐machine interactive systems. Researchers are working on the exploration of various active sensing materials toward broad detection, multifunction, low‐power consumption. Here, a ion‐gel fibrous membrane presented by electrospinning technology utilized to construct capacitive triboelectric nanogenerator (TENG). The iontronic sensor exhibits inherently favorable repeatability, which retains long‐term stability after 5000 cycles. can also detect clear pulse waveform at human wrist enable mapping pressure distribution sensory matrix. For TENG, maximum peak power 54.56 µW be used commercial electronics. In addition, prepared TENG array achieve interactive, rapidly responsive, accurate dynamic monitoring, broadens direct effective devices. promising provide an outstanding approach physiological biomechanical energy harvesting, interaction, self‐powered monitoring

Language: Английский

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Recent Advances of Capacitive Sensors: Materials, Microstructure Designs, Applications, and Opportunities

Advanced Materials Technologies, Journal Year: 2023, Volume and Issue: 8(11)

Published: April 4, 2023

Abstract Capacitive sensors have advanced rapidly to create new applications including wearable for human health monitoring, integrated intelligent surgical devices, tactile interfaces robots. Compared other types of pressure or strain sensors, capacitive require low power consumption and offer excellent linearity fast response time. Herein, this review concentrates on the recent advancements developments high‐performance with materials microstructures, which significantly enhance their sensitivity, accuracy, linearity, This work also provides a applications, from current challenges future opportunities are proposed discussed.

Language: Английский

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Electrochemical self-powered strain sensor for static and dynamic strain detections

Nano Energy, Journal Year: 2023, Volume and Issue: 118, P. 108997 - 108997

Published: Oct. 17, 2023

Language: Английский

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Micropyramid Array Bimodal Electronic Skin for Intelligent Material and Surface Shape Perception Based on Capacitive Sensing

Advanced Science, Journal Year: 2023, Volume and Issue: 11(3)

Published: Nov. 29, 2023

Abstract Developing electronic skins (e‐skins) that are comparable to or even beyond human tactile perception holds significant importance in advancing the process of intellectualization. In this context, a machine‐learning‐motivated micropyramid array bimodal (MAB) e‐skin based on capacitive sensing is reported, which enables spatial mapping applications (proximity and pressure) implemented via fringing iontronic effects, such as contactless measurement 3D objects contact recognition Braille letters. Benefiting from effect single‐micropyramid structure, MAB pressure mode yields impressive features: maximum sensitivity 655.3 kPa −1 (below 0.5 kPa), linear 327.9 (0.5–15 an ultralow limit detection 0.2 Pa. With assistance multilayer perceptron convolutional neural network, can accurately perceive 6 materials 10 surface shapes training learning using collected datasets proximity modes, thus allowing it achieve precise different within one proximity‐pressure cycle. The development opens new avenue for robotic skin expansion advanced applications.

Language: Английский

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