Technology Roadmap for Flexible Sensors

ACS Nano, Год журнала: 2023, Номер 17(6), С. 5211 - 5295

Опубликована: Март 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.

Язык: Английский

---

Electronic Textiles for Wearable Point-of-Care Systems

Chemical Reviews, Год журнала: 2021, Номер 122(3), С. 3259 - 3291

Опубликована: Дек. 23, 2021

Traditional public health systems are suffering from limited, delayed, and inefficient medical services, especially when confronted with the pandemic aging population. Fusing traditional textiles diagnostic, therapeutic, protective devices can unlock electronic (e-textiles) as point-of-care platform technologies on human body, continuously monitoring vital signs implementing round-the-clock treatment protocols in close proximity to patient. This review comprehensively summarizes research advances e-textiles for wearable systems. We start a brief introduction emphasize significance of current healthcare system. Then, we describe textile sensors diagnosis, therapeutic treatment, prevention, by highlighting their working mechanisms, representative materials, clinical application scenarios. Afterward, detail e-textiles' connection gateway real-time data transmission processing context 5G Internet Things. Finally, provide new insights into remaining challenges future directions field e-textiles. Fueled chemistry materials science, textile-based diagnostic devices, communication units expected interact synergistically construct intelligent, platforms, ultimately illuminating system Things era.

Язык: Английский

---

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

---

Hierarchically patterned self-powered sensors for multifunctional tactile sensing

Science Advances, Год журнала: 2020, Номер 6(34)

Опубликована: Авг. 19, 2020

Flexible sensors are highly desirable for tactile sensing and wearable devices. Previous researches of smart elements have focused on flexible pressure or temperature sensors. However, realizing material identification remains a challenge. Here, we report multifunctional sensor composed hydrophobic films graphene/polydimethylsiloxane sponges. By engineering optimizing sponges, the fabricated exhibits high-pressure sensitivity >15.22 per kilopascal, fast response time <74 millisecond, high stability over >3000 cycles. In case stimulus, temperature-sensing resolution 1 kelvin via thermoelectric effect. The can generate output voltage signals after physical contact with different flat materials based contact-induced electrification. corresponding be, in turn, used to infer properties. This is excellent its low cost identification, which provides design concept meeting challenges functional electronics.

Язык: Английский

---

Flexible Electronics: Status, Challenges and Opportunities

Frontiers in Electronics, Год журнала: 2020, Номер 1

Опубликована: Сен. 30, 2020

SPECIALTY GRAND CHALLENGE article Front.Electron., 30 September 2020Sec. Flexible Electronics Volume 1 - 2020 | https://doi.org/10.3389/felec.2020.594003

Язык: Английский

---

Wireless and battery-free technologies for neuroengineering

Nature Biomedical Engineering, Год журнала: 2021, Номер 7(4), С. 405 - 423

Опубликована: Март 8, 2021

Язык: Английский

---

Emerging Modalities and Implantable Technologies for Neuromodulation

Cell, Год журнала: 2020, Номер 181(1), С. 115 - 135

Опубликована: Март 26, 2020

Язык: Английский

---

Wearable Soft Technologies for Haptic Sensing and Feedback

Advanced Functional Materials, Год журнала: 2020, Номер 31(39)

Опубликована: Дек. 31, 2020

Abstract Virtual reality (VR) and augmented (AR) systems have garnered recent widespread attention due to increased accessibility, functionality, affordability. These sense user inputs typically provide haptic, audio, visual feedback blend interactive virtual environments with the real world for an enhanced or simulated experience. With applications ranging from immersive entertainment, teleoperation, physical therapy, further development of this technology has potential impact across multiple disciplines. However, VR/AR devices still face critical challenges that hinder integration into everyday life additional applications; namely, rigid cumbersome form factor current is incompatible dynamic movements pliable limbs human body. Recent advancements in field soft materials are uniquely suited solutions challenge. Devices fabricated flexible elastic bio‐compatible significantly greater compatibility body could lead a more natural This review reports state‐of‐the‐art experimental studies wearable sensing haptic applications, explores emerging technologies on‐body devices, identifies future opportunities toward seamless world.

Язык: Английский

---

Ultrasoft Liquid Metal Elastomer Foams with Positive and Negative Piezopermittivity for Tactile Sensing

Advanced Functional Materials, Год журнала: 2020, Номер 30(36)

Опубликована: Июль 6, 2020

Abstract Soft, capacitive tactile (pressure) sensors are important for applications including human–machine interfaces, soft robots, and electronic skins. Such capacitors consist of two electrodes separated by a dielectric. Pressing the capacitor brings closer together thereby increases capacitance. Thus, sensitivity to given force is maximized using dielectric materials that have high constant, yet such properties often in conflict with each other. Here, liquid metal elastomer foam (LMEF) introduced extremely (elastic modulus 7.8 kPa), highly compressible (70% strain), has permittivity. Compressing LMEF displaces air structure, increasing permittivity over large range (5.6–11.7). This called “positive piezopermittivity.” Interestingly, it discovered decreases (“negative piezopermittivity”) when compressed strain due geometric deformation droplets. mechanism theoretically confirmed via electromagnetic theory, finite element simulation. Using these materials, sensor sensitivity, initial capacitance, capacitance change demonstrated. In addition, powered wirelessly (from 3 m away) power conversion efficiency (84%)

Язык: Английский

---

Room-temperature high-precision printing of flexible wireless electronics based on MXene inks

Nature Communications, Год журнала: 2022, Номер 13(1)

Опубликована: Июнь 9, 2022

Wireless technologies-supported printed flexible electronics are crucial for the Internet of Things (IoTs), human-machine interaction, wearable and biomedical applications. However, challenges to existing printing approaches remain, such as low precision, difficulty in conformal printing, complex ink formulations processes. Here we present a room-temperature direct strategy wireless electronics, where distinct high-performance functional modules (e.g., antennas, micro-supercapacitors, sensors) can be fabricated with high resolution further integrated on various flat/curved substrates. The additive-free titanium carbide (Ti3C2Tx) MXene aqueous inks regulated large single-layer ratio (>90%) narrow flake size distribution, offering metallic conductivity (~6, 900 S cm-1) ultrafine-printed tracks (3 μm line gap 0.43% spatial uniformity) without annealing. In particular, build an all-MXene-printed system capable communication, energy harvesting, smart sensing. This work opens door high-precision additive manufacturing at room temperature.

Язык: Английский

---