Carbon Quantum Dot-Functionalized Dermis-Derived Transparent Electronic Skin for Multimodal Human Motion Signal Monitoring and Construction of Self-Powered Triboelectric Nanogenerator

ACS Applied Materials & Interfaces, Год журнала: 2024, Номер 16(35), С. 46771 - 46788

Опубликована: Авг. 21, 2024

Electronic skin (e-skin) is considered as a highly promising interface for human-computer interaction systems and wearable electronic devices. Through elaborate design assembly of various materials, it possesses multiple characteristics similar to human skin, including remarkable flexibility, stretchability, sensitivity temperature humidity, biocompatibility, efficient interfacial ion/electron transport capabilities. Here, we innovatively integrate multifunctional carbon quantum dots (CQDs), which exhibit conductivity, antibacterial properties, ultraviolet absorption, fluorescence emission, with poly(acrylic acid) glycerin (Gly) into three-dimensional network structure natural goatskin collagen fibers. top-down strategy enhanced by hydrogen bond reconstruction, successfully fabricated novel transparent e-skin (PAC-eSkin). This exhibited significant tensile properties (4.94 MPa strength 263.42% maximum breaking elongation), while also possessing Young's modulus (2.32 MPa). It noteworthy that the functionalized CQDs used was derived from discarded goat hair, addition Gly gave PAC-eSkin excellent antifreezing moisturizing properties. Due presence ultrasmall CQDs, creates channels within PAC-eSkin, could rapidly sense motion physiological signals (with gauge factor (GF) 1.88). Furthermore, had potential replace traditional electrode patches real-time monitoring electrocardiogram, electromyogram, electrooculogram signals, higher SNR (signal-to-noise ratio) 25.1 dB. Additionally, customizable size shape offer vast possibilities construction single-electrode triboelectric nanogenerator systems. We have reason believe development this based on CQDs-functionalized dermal matrices can pave new way innovations in human–computer interfaces their sensing application diverse scenarios.

Язык: Английский

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Design of AI-Enhanced and Hardware-Supported Multimodal E-Skin for Environmental Object Recognition and Wireless Toxic Gas Alarm

Nano-Micro Letters, Год журнала: 2024, Номер 16(1)

Опубликована: Июль 29, 2024

Abstract Post-earthquake rescue missions are full of challenges due to the unstable structure ruins and successive aftershocks. Most current robots lack ability interact with environments, leading low efficiency. The multimodal electronic skin (e-skin) proposed not only reproduces pressure, temperature, humidity sensing capabilities natural but also develops functions beyond it—perceiving object proximity NO 2 gas. Its multilayer stacked based on Ecoflex organohydrogel endows e-skin mechanical properties similar skin. Rescue integrated artificial intelligence (AI) algorithms show strong environmental perception can accurately distinguish objects identify human limbs through grasping, laying foundation for automated post-earthquake rescue. Besides, combination wireless alarm circuits allows sense toxic gases in environment real time, thereby adopting appropriate measures protect trapped people from environment. Multimodal powered by AI hardware exhibits powerful information processing capabilities, which, as an interface interaction physical world, dramatically expands intelligent robots’ application scenarios.

Язык: Английский

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Efficient multi-physical crosslinked nanocomposite hydrogel for a conformal strain and self-powered tactile sensor

Nano Energy, Год журнала: 2025, Номер unknown, С. 110669 - 110669

Опубликована: Янв. 1, 2025

Язык: Английский

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Conductive hydrogels with HPC additions for humidity sensing and temperature response

Chemical Engineering Journal, Год журнала: 2025, Номер unknown, С. 160000 - 160000

Опубликована: Янв. 1, 2025

Язык: Английский

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Great Carbon Nano Materials based Composites for Electronic Skin: Intelligent Sensing, and Self-Powered Nano Generators

Nano Energy, Год журнала: 2025, Номер unknown, С. 110805 - 110805

Опубликована: Фев. 1, 2025

Язык: Английский

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Hydrogel-based pressure sensors for electronic skin systems

Matter, Год журнала: 2025, Номер 8(3), С. 101992 - 101992

Опубликована: Март 1, 2025

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Design Strategies and Emerging Applications of Conductive Hydrogels in Wearable Sensing

Gels, Год журнала: 2025, Номер 11(4), С. 258 - 258

Опубликована: Апрель 1, 2025

Conductive hydrogels, integrating high conductivity, mechanical flexibility, and biocompatibility, have emerged as crucial materials driving the evolution of next-generation wearable sensors. Their unique ability to establish seamless interfaces with biological tissues enables real-time acquisition physiological signals, external stimuli, even therapeutic feedback, paving way for intelligent health monitoring personalized medical interventions. To fully harness their potential, significant efforts been dedicated tailoring conductive networks, properties, environmental stability these hydrogels through rational design systematic optimization. This review comprehensively summarizes strategies categorized into metal-based, carbon-based, polymer-based, ionic, hybrid systems. For each type, highlights structural principles, conductivity enhancement, approaches simultaneously enhance robustness long-term under complex environments. Furthermore, emerging applications in sensing systems are thoroughly discussed, covering signal monitoring, mechano-responsive platforms, closed-loop diagnostic–therapeutic Finally, this identifies key challenges offers future perspectives guide development multifunctional, intelligent, scalable hydrogel sensors, accelerating translation advanced flexible electronics smart healthcare technologies.

Язык: Английский

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Cation‐Alginate Complexes and Their Hydrogels: A Powerful Toolkit for the Development of Next‐Generation Sustainable Functional Materials

Advanced Functional Materials, Год журнала: 2024, Номер unknown

Опубликована: Ноя. 8, 2024

Abstract The use of materials from renewable sources instead fossil fuels is a crucial step forward in the industrial transition toward sustainability. Among polysaccharides, alginate stands out as versatile and eco‐friendly candidate due to its ability form functional complexes with cations. This review provides an up‐to‐date comprehensive description complexation specific cations, focusing on how interaction forces can be harnessed tailor physicochemical properties cation‐alginate‐based materials. Methodologies approaches for development multiscale characterization these are introduced discussed. Alginate mono‐, di‐, tri‐, tetravalent cations (namely Ag + , Mg 2+ Ca Sr Ba Mn Co Ni Cu Zn Cd Pb UO 2 Cr 3+ Fe Al Ga Y La Ce Nd Eu Tb Gd Zr 4+ Th ) reviewed. Each cation discussed individually, highlighting it uniquely influence material thereby unlocking new potentials design advanced Key challenges opportunities applying across diverse fields, such biomedicine, environmental remediation, food additives supplements, flame retardants, sensors, supercapacitors, catalysis, mechanical isolators assessed, providing evidence transformative potential cation‐alginate tackling global advancing cutting‐edge technologies.

Язык: Английский

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Ultrasensitive and Breathable Hydrogel Fiber‐Based Strain Sensors Enabled by Customized Crack Design for Wireless Sign Language Recognition

Advanced Functional Materials, Год журнала: 2024, Номер unknown

Опубликована: Ноя. 26, 2024

Abstract Wearable strain sensors, capable of continuously detecting human movements, hold great application prospects in sign language gesture recognition to alleviate the daily communication barriers deaf and mute community. However, unsatisfactory sensing performance (such as low sensitivity, narrow detection range, etc.) wearing discomfort severely hinder their practical application. Here, high‐performance breathable hydrogel sensors are proposed by introducing an adjustable localized crack a closed‐loop connected fiber encapsulated porous elastomer films. Upon loading/unloading external strain, dynamic opening/closing pre‐cut causes rapid switching conductive path, resulting sharp changes resistance high sensitivity. Consequently, hydrogel‐based crack‐effect sensor exhibits superb sensitivity (GF up 3930), broad range (from 0.02% 80%), fast response/recovery time (78/52 ms), repeatability, structural stability. Based on capability accurately detect various strains across full wireless system is developed achieve accuracy 98.1% encoding decoding gestures with assistance machine learning, providing robust platform for efficient intelligibility barrier‐free communication.

Язык: Английский

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Strain-Temperature Dual Sensor Based on Deep Learning Strategy for Human–Computer Interaction Systems

ACS Sensors, Год журнала: 2024, Номер 9(8), С. 4216 - 4226

Опубликована: Июль 28, 2024

Thermoelectric (TE) hydrogels, mimicking human skin, possessing temperature and strain sensing capabilities, are well-suited for human-machine interaction interfaces wearable devices. In this study, a TE hydrogel with high toughness responsiveness was created using the Hofmeister effect current effect, achieved through cross-linking of PVA/PAA/carboxymethyl cellulose triple networks. The facilitated by Na

Язык: Английский

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