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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Hydrogel‐Based Flexible Electronics

Advanced Materials, Journal Year: 2022, Volume and Issue: 35(14)

Published: Aug. 29, 2022

Abstract Flexible electronics is an emerging field of research involving multiple disciplines, which include but not limited to physics, chemistry, materials science, electronic engineering, and biology. However, the broad applications flexible are still restricted due several limitations, including high Young's modulus, poor biocompatibility, responsiveness. Innovative aiming for overcoming these drawbacks boost its practical application highly desirable. Hydrogel a class 3D crosslinked hydrated polymer networks, exceptional material properties render it as promising candidate next generation electronics. Here, latest methods synthesizing advanced functional hydrogels state‐of‐art hydrogel‐based in various fields reviewed. More importantly, correlation between hydrogel device performance discussed here, have better understanding development by using environmentally responsive hydrogels. Last, perspectives on current challenges future directions multifunctional provided.

Language: Английский

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Recent advances in conductive hydrogels: classifications, properties, and applications

Chemical Society Reviews, Journal Year: 2022, Volume and Issue: 52(2), P. 473 - 509

Published: Dec. 9, 2022

Hydrogel-based conductive materials for smart wearable devices have attracted increasing attention due to their excellent flexibility, versatility, and outstanding biocompatibility. This review presents the recent advances in multifunctional hydrogels electronic devices. First, with different components are discussed, including pure single network based on polymers, additional additives (i.e., nanoparticles, nanowires, nanosheets), double additives. Second, a variety of functionalities, self-healing, super toughness, self-growing, adhesive, anti-swelling, antibacterial, structural color, hydrophobic, anti-freezing, shape memory external stimulus responsiveness introduced detail. Third, applications flexible illustrated strain sensors, supercapacitors, touch panels, triboelectric nanogenerator, bioelectronic devices, robot). Next, current challenges facing summarized. Finally, an imaginative but reasonable outlook is given, which aims drive further development future.

Language: Английский

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Self-Healing, Wet-Adhesion silk fibroin conductive hydrogel as a wearable strain sensor for underwater applications

Chemical Engineering Journal, Journal Year: 2022, Volume and Issue: 446, P. 136931 - 136931

Published: May 11, 2022

Language: Английский

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Engineering Smart Composite Hydrogels for Wearable Disease Monitoring

Nano-Micro Letters, Journal Year: 2023, Volume and Issue: 15(1)

Published: April 15, 2023

Growing health awareness triggers the public's concern about problems. People want a timely and comprehensive picture of their condition without frequent trips to hospital for costly cumbersome general check-ups. The wearable technique provides continuous measurement method monitoring by tracking person's physiological data analyzing it locally or remotely. During process, different kinds sensors convert signals into electrical optical that can be recorded transmitted, consequently playing crucial role in techniques. Wearable application scenarios usually require possess excellent flexibility stretchability. Thus, designing flexible stretchable with reliable performance is key technology. Smart composite hydrogels, which have tunable properties, mechanical biocompatibility, multi-stimulus sensitivity, are one best sensitive materials monitoring. This review summarizes common synthetic optimization strategies smart hydrogels focuses on current field

Language: Английский

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Biomaterials- and biostructures Inspired high-performance flexible stretchable strain sensors: A review

Chemical Engineering Journal, Journal Year: 2021, Volume and Issue: 425, P. 129949 - 129949

Published: April 23, 2021

Language: Английский

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Organogels versus Hydrogels: Advantages, Challenges, and Applications

Advanced Functional Materials, Journal Year: 2023, Volume and Issue: 33(27)

Published: April 2, 2023

Abstract Organogels are an important class of gels, and comparable to hydrogels owing their properties as liquid‐infused soft materials. Despite the extensive choice liquid media compatible networks that can provide a broader range properties, relatively few studies reported in this area. This review presents applicability organogels concerning components, unique applications. Their distinctive features compared other gels discussed, including multi‐stimuli responses, affinity broad substances, thermal environmental stability, electronic ionic conductivity, actuation. The active role solvents is highlighted versatility organogel properties. To differentiate between these classified filled with different organic liquids, highly polar binary solvent systems. Most promising applications sophisticated multifunctional materials discussed light features.

Language: Английский

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Peptide-enhanced tough, resilient and adhesive eutectogels for highly reliable strain/pressure sensing under extreme conditions

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

Published: Nov. 5, 2022

Abstract Natural gels and biomimetic hydrogel materials have been able to achieve outstanding integrated mechanical properties due the gain of natural biological structures. However, nearly every structure relies on water as solvents or carriers, which limits possibility in extreme conditions, such sub-zero temperatures long-term application. Here, peptide-enhanced eutectic were synthesized by introducing α-helical “molecular spring” into deep solvent. The gel takes full advantage structure, achieving high tensile/compression, good resilience, superior fracture toughness, excellent fatigue resistance strong adhesion, while it also inherits benefits solvent solves problems volatilization freezing. This enables unprecedentedly long stable sensing human motion movement. electrical signal shows almost no drift even after 10,000 deformations for 29 hours −20 °C 80 temperature range.

Language: Английский

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Anti-freezing and self-healing nanocomposite hydrogels based on poly(vinyl alcohol) for highly sensitive and durable flexible sensors

Chemical Engineering Journal, Journal Year: 2022, Volume and Issue: 436, P. 135243 - 135243

Published: Feb. 12, 2022

Language: Английский

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The Emergence of AI-Based Wearable Sensors for Digital Health Technology: A Review

Sensors, Journal Year: 2023, Volume and Issue: 23(23), P. 9498 - 9498

Published: Nov. 29, 2023

Disease diagnosis and monitoring using conventional healthcare services is typically expensive has limited accuracy. Wearable health technology based on flexible electronics gained tremendous attention in recent years for patient owing to attractive features, such as lower medical costs, quick access data, ability operate transmit data harsh environments, storage at room temperature, non-invasive implementation, mass scaling, etc. This provides an opportunity disease pre-diagnosis immediate therapy. sensors have opened a new area of personalized by accurately measuring physical states biochemical signals. Despite the progress date development wearable sensors, there are still several limitations accuracy collected, precise diagnosis, early treatment. necessitates advances applied materials structures artificial intelligence (AI)-enabled extract target signals accurate clinical decision-making efficient care. In this paper, we review two significant aspects smart sensors. First, offer overview most improving sensor performance physical, chemical, biosensors, focusing materials, structural configurations, transduction mechanisms. Next, use AI combination with big processing, self-learning, power-efficiency, real-time acquisition intelligent sensing platform. Finally, present challenges future opportunities associated

Language: Английский

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