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

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Multifunctional Organohydrogel with Ultralow‐Hysteresis, Ultrafast‐Response, and Whole‐Strain‐Range Linearity for Self‐Powered Sensors

Advanced Functional Materials, Год журнала: 2023, Номер 33(15)

Опубликована: Фев. 7, 2023

Abstract The conductive hydrogels always suffered from high internal friction, large hysteresis, and low capability of accurately predicting physical deformation, which seriously restricted their application in smart wearable devices. To address these problems, solvent molecules are directionally inserted into the polymer molecule chains via bridge effect to effectively reduce molecular friction. Moreover, swelling is also combined eliminate temporary entanglements hydrogel system. cooperation between swollen endows prepared polyacrylamide (PAM)/laponite/H 3 BO /ethylene glycol (Eg) organohydrogel (PLBOH) ultralow hysteresis (1.38%, ε = 100%), ultrafast response (≈10 ms), linearity whole‐strain‐range ( R 2 0.996) with a great sensitivity GF 2.68 at strain range 0–750%). Meanwhile, PL 10 B 30 OH exhibits long‐term stability, excellent stretchability, dissipated energy. Furthermore, assembled triboelectric nanogenerator (TENG) displays an outstanding energy harvesting performance output voltage 200 V size 20 mm × mm. sensors can monitor small facial expressions human movements, indicating tremendous applications self‐powered intelligent flexible electronics under harsh environmental conditions.

Язык: Английский

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3D-printed PEDOT:PSS for soft robotics

Nature Reviews Materials, Год журнала: 2023, Номер 8(9), С. 604 - 622

Опубликована: Авг. 24, 2023

Язык: Английский

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Sensing in Soft Robotics

ACS Nano, Год журнала: 2023, Номер 17(16), С. 15277 - 15307

Опубликована: Авг. 2, 2023

Soft robotics is an exciting field of science and technology that enables robots to manipulate objects with human-like dexterity. can handle delicate care, access remote areas, offer realistic feedback on their handling performance. However, increased dexterity mechanical compliance soft come the need for accurate control position shape these robots. Therefore, must be equipped sensors better perception surroundings, location, force, temperature, shape, other stimuli effective usage. This review highlights recent progress in sensing technologies robotic applications. It begins introduction actuation material selection robotics, followed by in-depth exploration various types sensors, integration methods, benefits multimodal sensing, signal processing, strategies. A short description current market leaders also included illustrate growing demands this technology. By examining latest advancements robots, aims highlight potential inspire innovation field.

Язык: Английский

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Conductive polymer based hydrogels and their application in wearable sensors: a review

Materials Horizons, Год журнала: 2023, Номер 10(8), С. 2800 - 2823

Опубликована: Янв. 1, 2023

Hydrogels have been attracting increasing attention for application in wearable electronics, due to their intrinsic biomimetic features, highly tunable chemical-physical properties (mechanical, electrical, etc.), and excellent biocompatibility. Among many proposed varieties of hydrogels, conductive polymer-based hydrogels (CPHs) emerged as a promising candidate future sensor designs, with capability realizing desired features using different tuning strategies ranging from molecular design (with low length scale 10-10 m) micro-structural configuration (up 10-2 m). However, considerable challenges remain be overcome, such the limited strain sensing range mechanical strength, signal loss/instability caused by swelling/deswelling, significant hysteresis signals, de-hydration induced malfunctions, surface/interfacial failure during manufacturing/processing. This review aims offer targeted scan recent advancements CPH based technology, establishment dedicated structure-property relationships lab advanced manufacturing routes potential scale-up production. The CPHs sensors is also explored, suggested new research avenues prospects included.

Язык: Английский

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Embedment of sensing elements for robust, highly sensitive, and cross-talk–free iontronic skins for robotics applications

Science Advances, Год журнала: 2023, Номер 9(9)

Опубликована: Март 3, 2023

Iontronic pressure sensors are promising in robot haptics because they can achieve high sensing performance using nanoscale electric double layers (EDLs) for capacitive signal output. However, it is challenging to both sensitivity and mechanical stability these devices. need microstructures that offer subtly changeable EDL interfaces boost sensitivity, while the microstructured mechanically weak. Here, we embed isolated ionic gel (IMIG) a hole array (28 × 28) of elastomeric matrix cross-link IMIGs laterally enhanced interfacial robustness without sacrificing sensitivity. The embedded configuration toughens strengthens skin by pinning cracks elastic dissipation interhole structures. Furthermore, cross-talk between elements suppressed isolating materials designing circuit with compensation algorithm. We have demonstrated potentially useful robotic manipulation tasks object recognition.

Язык: Английский

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Fatigue‐Resistant Conducting Polymer Hydrogels as Strain Sensor for Underwater Robotics

Advanced Functional Materials, Год журнала: 2023, Номер 33(42)

Опубликована: Июль 14, 2023

Abstract Conducting polymer hydrogels are widely used as strain sensors in light of their distinct skin‐like softness, sensitivity, and environmental adaptiveness the fields wearable devices, soft robots, human‐machine interface. However, mechanical electrical properties existing conducting hydrogels, especially fatigue‐resistance sensing robustness during long‐term application, unsatisfactory, which severely hamper practical utilities. Herein, a strategy to fabricate with anisotropic structures mechanics is presented through combined freeze‐casting salting‐out process. The as‐fabricated exhibit high fatigue threshold (>300 J m −2 ), low Young's modulus (≈100 kPa), well (over 10 000 cycles). Such superior performance enables application monitor real‐time movement underwater robotics. design fabrication for reported this study may open up an enticing avenue functional materials electronics

Язык: Английский

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Advances in Wearable Strain Sensors Based on Electrospun Fibers

Advanced Functional Materials, Год журнала: 2023, Номер 33(18)

Опубликована: Фев. 25, 2023

Abstract Wearable strain sensors with the ability of detecting physiological activities play an important role in personalized healthcare. Electrospun fibers have become a popular building block for wearable due to their excellent mechanical properties, breathability, and light weight. In this review, structure preparation process electrospun conductive layer are systematically introduced. The impact materials structures on following discussion sensing performance optimization strategies is outlined. Furthermore, applications fiber‐based biomonitoring, motion detection, human‐machine interaction presented. Finally, challenges promising future directions community based pointed out.

Язык: Английский

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Recent Progress in Advanced Tactile Sensing Technologies for Soft Grippers

Advanced Functional Materials, Год журнала: 2023, Номер 33(41)

Опубликована: Авг. 27, 2023

Abstract Tactile sensing technology is crucial for soft grippers. Soft grippers equipped with intelligent tactile systems based on various sensors can interact safely the unstructured environments and obtain precise properties of objects (e.g., size shape). It essential to develop state‐of‐the‐art technologies handle different grasping tasks. In this review, development techniques robotic hands first introduced. Then, principles structures types normally adopted in grippers, including capacitive sensors, piezoresistive piezoelectric fiber Bragg grating (FBG) vision‐based triboelectric other advanced developed recently are briefly presented. Furthermore, modalities methodologies also described aspects force measurement, perception object properties, slip detection, fusion perception. The application scenarios summarized these technologies. Finally, challenges that need be tackled discussed perspectives addressing pointed out.

Язык: Английский

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Age of Flexible Electronics: Emerging Trends in Soft Multifunctional Sensors

Advanced Materials, Год журнала: 2024, Номер 36(16)

Опубликована: Янв. 23, 2024

Abstract With the commercialization of first‐generation flexible mobiles and displays in late 2010s, humanity has stepped into age electronics. Inevitably, soft multifunctional sensors, as essential components next‐generation electronics, have attracted tremendous research interest like never before. This review is dedicated to offering an overview latest emerging trends sensors their accordant future development (R&D) directions for coming decade. First, key characteristics predominant target stimuli are highlighted. Second, important selection criteria introduced. Next, materials/structures identified. Specifically, R&D these envisaged based on trends, namely i) decoupling multiple stimuli, ii) data processing, iii) skin conformability, iv) energy sources. Finally, challenges potential opportunities discussed, new insights prospects fast‐emerging technology.

Язык: Английский

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