Technology Roadmap for Flexible Sensors

ACS Nano, Journal Year: 2023, Volume and Issue: 17(6), P. 5211 - 5295

Published: March 9, 2023

Humans rely increasingly on sensors to address grand challenges and improve quality of life in the era digitalization big data. For ubiquitous sensing, flexible are developed overcome limitations conventional rigid counterparts. Despite rapid advancement bench-side research over last decade, market adoption remains limited. To ease expedite their deployment, here, we identify bottlenecks hindering maturation propose promising solutions. We first analyze achieving satisfactory sensing performance for real-world applications then summarize issues compatible sensor-biology interfaces, followed by brief discussions powering connecting sensor networks. Issues en route commercialization sustainable growth sector also analyzed, highlighting environmental concerns emphasizing nontechnical such as business, regulatory, ethical considerations. Additionally, look at future intelligent sensors. In proposing a comprehensive roadmap, hope steer efforts towards common goals guide coordinated development strategies from disparate communities. Through collaborative efforts, scientific breakthroughs can be made sooner capitalized betterment humanity.

Language: Английский

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Sensors for Volatile Organic Compounds

ACS Nano, Journal Year: 2022, Volume and Issue: 16(5), P. 7080 - 7115

Published: May 5, 2022

This paper provides an overview of recent developments in the field volatile organic compound (VOC) sensors, which are finding uses healthcare, safety, environmental monitoring, food and agriculture, oil industry, other fields. It starts by briefly explaining basics VOC sensing reviewing currently available quickly progressing approaches. then discusses main trends materials' design with special attention to nanostructuring nanohybridization. Emerging materials strategies highlighted their involvement different types technologies is discussed, including optical, electrical, gravimetric sensors. The review also detailed discussions about limitations offers potential solutions. status suggestions promising directions for future development summarized.

Language: Английский

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Significance of sensors for industry 4.0: Roles, capabilities, and applications

Sensors International, Journal Year: 2021, Volume and Issue: 2, P. 100110 - 100110

Published: Jan. 1, 2021

Sensors play a crucial role in factory automation making the system intellectual. Different types of sensors are available as per suitability and applications; some them produced mass market at affordable costs. The standard sensor position sensors, pressure flow temperature force sensors. They used many sectors, such motorsport, medical, industry, aerospace, agriculture, daily life. objective Industry 4.0 is to increase efficiency through automation. vital components 4.0, allowing several transitions changes positions, length, height, external dislocations industrial production facilities be detected, measured, analysed, processed. Smart factories will also enhance sustainability by tracking real-time output, automated control systems minimise potential maintenance It can seen that digitalisation improve mobility, which gives advanced manufacturing firms competitive advantage. This paper discusses their various types, along with significant capabilities for manufacturing. step-by-step working Blocks Quality Services during implementation elaborated diagrammatically. Finally, we identified thirteen applications 4.0. provides an excellent opportunity development across globe. In enjoy higher acceptance rates benefit from fully enabled connecting data exchange logistics integration. coming years, installations may grow process management, lines, digital supply chains.

Language: Английский

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Approaching intrinsic dynamics of MXenes hybrid hydrogel for 3D printed multimodal intelligent devices with ultrahigh superelasticity and temperature sensitivity

Nature Communications, Journal Year: 2022, Volume and Issue: 13(1)

Published: June 14, 2022

Hydrogels are investigated broadly in flexible sensors which have been applied into wearable electronics. However, further application of hydrogels is restricted by the ambiguity sensing mechanisms, and multi-functionalization systems based on terms cost, difficulty integration, device fabrication remains a challenge, obstructing specific scenarios. Herein, cost-effective, structure-specialized scenario-applicable 3D printing direct ink writing (DIW) technology fabricated two-dimensional (2D) transition metal carbides (MXenes) bonded hydrogel sensor with excellent strain temperature performance developed. Gauge factor (GF) 5.7 (0 - 191% strain) high sensitivity (-5.27% °C-1) within wide working range 80 °C) can be achieved. In particular, corresponding mechanisms clarified finite element analysis first use situ temperature-dependent Raman for hydrogels, printed realize precise indication shape memory solar array hinge.

Language: Английский

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Naturally sourced hydrogels: emerging fundamental materials for next-generation healthcare sensing

Chemical Society Reviews, Journal Year: 2023, Volume and Issue: 52(9), P. 2992 - 3034

Published: Jan. 1, 2023

The flourishing development of flexible healthcare sensing systems is inseparable from the fundamental materials with application-oriented mechanical and electrical properties. Thanks to continuous inspiration our Mother Nature, hydrogels originating natural biomass are attracting growing attention for their structural functional designs owing unique chemical, physical biological These highly efficient architectural enable them be most promising candidates electronic devices. This comprehensive review focuses on recent advances in naturally sourced constructing multi-functional sensors applications thereof. We first briefly introduce representative polymers, including polysaccharides, proteins, polypeptides, summarize physicochemical design principles fabrication strategies hydrogel based these polymers outlined after material properties required presented. then highlight various techniques devices, illustrate examples wearable or implantable bioelectronics pressure, strain, temperature, biomarker field systems. Finally, concluding remarks challenges prospects hydrogel-based provided. hope that this will provide valuable information next-generation build a bridge between as matter an applied target accelerate new near future.

Language: Английский

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Fatigue-free artificial ionic skin toughened by self-healable elastic nanomesh

Nature Communications, Journal Year: 2022, Volume and Issue: 13(1)

Published: July 29, 2022

Abstract Robust ionic sensing materials that are both fatigue-resistant and self-healable like human skin essential for soft electronics robotics with extended service life. However, most existing artificial skins produced on the basis of network reconfiguration suffer from a low fatigue threshold due to easy fracture low-energy amorphous polymer chains susceptible crack propagation. Here we engineer fatigue-free yet fully healable hybrid toughened by high-energy, elastic nanomesh, resembling repairable nanofibrous interwoven structure skin. Such design affords superhigh 2950 J m −2 while maintaining skin-like compliance, stretchability, strain-adaptive stiffening response. Moreover, nanofiber tension-induced moisture breathing matrix leads record-high strain-sensing gauge factor 66.8, far exceeding previous intrinsically stretchable conductors. This concept creates opportunities designing durable ion-conducting replicate unparalleled combinatory properties natural more precisely.

Language: Английский

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Flexible capacitive pressure sensors for wearable electronics

Journal of Materials Chemistry C, Journal Year: 2022, Volume and Issue: 10(5), P. 1594 - 1605

Published: Jan. 1, 2022

The device configuration and materials for each component, strategies to enhance the sensitivity of capacitive pressure sensors, their applications as wearable electronics have been summarized.

Language: Английский

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

Small, Journal Year: 2021, Volume and Issue: 18(7)

Published: Nov. 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.

Language: Английский

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Superstable and Intrinsically Self‐Healing Fibrous Membrane with Bionic Confined Protective Structure for Breathable Electronic Skin

Angewandte Chemie International Edition, Journal Year: 2022, Volume and Issue: 61(22)

Published: Feb. 25, 2022

Abstract Considerable effort has been devoted to the fabrication of electronic skin that can imitate self‐healing and sensing function biological skin. Almost all skins are composed airtight elastomers or hydrogels, which will cause inflammation. Fibrous membranes ideal materials for preparing highly sensitive breathable skins. However, development intrinsically fibrous with high stability is still a challenge. Here, novel interface protective strategy reported develop bionic confined structure first time, were further assembled into an all‐fiber structured through interfacial hydrogen bonding. The multifunctional self‐powering, self‐healing, breathability, stretchability, thermochromism functionalities, promising application in intelligent wearable systems.

Language: Английский

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Processing of Self‐Healing Polymers for Soft Robotics

Advanced Materials, Journal Year: 2021, Volume and Issue: 34(1)

Published: Oct. 7, 2021

Abstract Soft robots are, due to their softness, inherently safe and adapt well unstructured environments. However, they are prone various damage types. Self‐healing polymers address this vulnerability. soft can recover completely from macroscopic damage, extending lifetime. For developing healable robots, formative additive manufacturing methods have been exploited shape self‐healing into complex structures. Additionally, several novel techniques, noted as (re)assembly binding techniques that specific polymers, created. Herein, the wide variety of processing for robotics available in literature is reviewed, limitations opportunities discussed thoroughly. Based on defined requirements these critically compared validated. A strong focus drawn reversible covalent (physico)chemical cross‐links present do not only endow healability resulting robotic components, but also beneficial many techniques. They solve current obstacles including formation robust multi‐material parts, recyclability, stress relaxation. This review bridges two promising research fields, guides reader toward selecting a suitable method based polymer intended application.

Language: Английский

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