Materials Science and Engineering R Reports, Год журнала: 2024, Номер 163, С. 100891 - 100891
Опубликована: Дек. 12, 2024
Язык: Английский
Advanced Functional Materials, Год журнала: 2025, Номер unknown
Опубликована: Фев. 16, 2025
Abstract The escalating population affected by deafness and hearing loss demands solutions to revolutionize traditional sign language recognition based on interpreters. emergence of wearable sensors could provide a promising alternative but suffer from poor mechanical stability, external signal inferences, less sensitivity, hysteresis. Herein, an ultrasensitive anti‐interference flexible ionic composite nanofiber membranes (ICNM) pressure sensor is developed through precisely manipulating polymer‐blending interactions, where liquid silver nanowire additives are well anchored thermoplastic polyurethane polymer scaffolds without leakage via unique hydrogen bond networks, leading substantial areal capacitance 20 µF cm −2 , effectively mitigating noise. ICNM‐based showcases high sensitivity (57.2 kPa −1 ), ultralow detection limit (≈1.2 Pa), fast response time (15 ms), expansive range (1.2 Pa –220 kPa), exceptional stability for over 10 000 continuous compression recovery cycles, showing great promise capturing subtle facial expressions, large joint movements, high‐frequency (≈25.5 Hz) sensing in accuracy resolution. Together with advanced machine learning algorithms, intelligent glove achieves 96.8% 24 letters within 0.1 s, ushering new era significantly contributing next‐generation systems.
Язык: Английский
Процитировано
1
Sensors and Actuators A Physical, Год журнала: 2025, Номер unknown, С. 116426 - 116426
Опубликована: Март 1, 2025
Язык: Английский
Процитировано
1
Advanced Materials, Год журнала: 2024, Номер unknown
Опубликована: Дек. 9, 2024
Abstract A paradigm ionogel consisting of ionic liquid (IL) and PVDF−HFP composites is made, which inherently possesses dual‐function thermoelectric (iTE) piezoelectric (PE) attributes. This study investigates an innovative “PE‐enhanced iTEs” effect, wherein the thermopower exhibits a 58% enhancement while conductivity arises more than 2× within PE‐induced internal electric field. By harnessing these multifaceted features, fully self‐powered, multimodal sensors demonstrate their superior energy conversion capabilities, possessed minimum sensitivities 0.13 mV kPa −1 0.96 K in pressure temperature alterations, respectively. The PE augmentation iTEs maximized by ≈3× under rising water pressure. Their swift sophisticated responses to various vivo vital signs simultaneously hemorrhagic shock scenario, indicative good prospects clinical medicine field are showcased.
Язык: Английский
Процитировано
6
Molecules, Год журнала: 2025, Номер 30(5), С. 1121 - 1121
Опубликована: Фев. 28, 2025
Poly(2-oxazoline) (POx), a typical thermoresponsive polymer with good biocompatibility, was conjugated environment-sensitive tetraphenylenethene (TPE) and hydroxyphenylbenzoxazole (HBO) to achieve unique thermometer readings. Through phase transition induced by temperature, the thermometers can measure temperature in biologic range ratiometric fluorescence response, ultrahigh sensitivity reversibility. Moreover, be used change large difference living cells.
Язык: Английский
Процитировано
0
Journal of Materials Chemistry C, Год журнала: 2025, Номер unknown
Опубликована: Янв. 1, 2025
MXene/PS@polypropylene fabric pressure sensors can detect yoga movements, and combined with deep belief networks, the accuracy of recognizing different movements exceeds 91%.
Язык: Английский
Процитировано
0
Sensors, Год журнала: 2025, Номер 25(3), С. 964 - 964
Опубликована: Фев. 5, 2025
Flexible tactile sensors are widely used in aerospace, medical and health monitoring, electronic skin, human–computer interaction, other fields due to their unique advantages, thus becoming a research hotspot. The goal is develop flexible sensor characterized by outstanding sensitivity, extensive detection range linearity, elevated spatial resolution, commendable adaptability. Among several strategies like capacitive, piezoresistive, triboelectric sensors, etc., we focus on piezoelectric because of self-powered nature, high quick response time. These can respond wide dynamic mechanical stimuli turn them into measurable electrical signals. This makes it possible accurately detect objects, including shapes textures, for sense touch real work encapsulates current advancements focusing enhanced material properties, optimized structural design, improved fabrication techniques, broadened application domains. We outline the challenges facing provide inspiration guidance future development.
Язык: Английский
Процитировано
0
Nanomaterials, Год журнала: 2025, Номер 15(4), С. 298 - 298
Опубликована: Фев. 15, 2025
Flexible sensors are revolutionizing our lives as a key component of intelligent wearables. Their pliability, stretchability, and diverse designs enable foldable portable devices while enhancing comfort convenience. Advances in materials science have provided numerous options for creating flexible sensors. The core their application areas like electronic skin, health medical monitoring, motion human-computer interaction is selecting that optimize sensor performance weight, elasticity, comfort, flexibility. This article focuses on sensors, analyzing "sensing mechanisms-materials-applications" framework. It explores development trajectory, material characteristics, contributions various domains such interaction. concludes by summarizing current research achievements discussing future challenges opportunities. expected to continue expanding into new fields, driving the evolution smart wearables contributing society.
Язык: Английский
Процитировано
0
ACS Sensors, Год журнала: 2025, Номер unknown
Опубликована: Март 10, 2025
Breath sensors represent a frontier in noninvasive diagnostics, leveraging the detection of volatile organic compounds (VOCs) exhaled breath for real-time health monitoring. This review highlights recent advancements breath-sensing technologies, with focus on innovative materials driving their enhanced sensitivity and selectivity. Polymers, carbon-based like graphene carbon nanotubes, metal oxides such as ZnO SnO2 have demonstrated significant potential detecting biomarkers related to diseases including diabetes, liver/kidney dysfunction, asthma, gut health. The structural operational principles these are examined, revealing how unique properties contribute key respiratory gases acetone, ammonia (NH3), hydrogen sulfide, nitric oxide. complexity samples is addressed through integration machine learning (ML) algorithms, convolutional neural networks (CNNs) support vector machines (SVMs), which optimize data interpretation diagnostic accuracy. In addition sensing VOCs, devices capable monitoring parameters airflow, temperature, humidity, essential comprehensive analysis. also explores expanding role artificial intelligence (AI) transforming wearable into sophisticated tools personalized enabling disease Together, advances sensor ML-based analytics present promising platform future individualized, healthcare.
Язык: Английский
Процитировано
0
Biosensors, Год журнала: 2025, Номер 15(3), С. 177 - 177
Опубликована: Март 11, 2025
With the rapid development of wearable technology, multifunctional sensors have demonstrated immense application potential. However, limitations traditional rigid materials restrict flexibility and widespread adoption such sensors. Hydrogels, as flexible materials, provide an effective solution to this challenge due their excellent stretchability, biocompatibility, adaptability. This study developed a sensor based on composite hydrogel polyvinyl alcohol (PVA) sodium alginate (SA), using poly(3,4-ethylenedioxythiophene)/polystyrene sulfonate (PEDOT:PSS) conductive material achieve detection strain, temperature, physiological signals. The features simple fabrication process, low cost, impedance. Experimental results show that prepared exhibits outstanding mechanical properties conductivity, with strength 118.8 kPa, elongation 334%, conductivity 256 mS/m. In strain sensing, demonstrates response minor strains (4%), high sensitivity (gauge factors 0.39 for 0–120% 0.73 120–200% ranges), short time (2.2 s), hysteresis, cyclic stability (over 500 cycles). For temperature achieves sensitivities −27.43 Ω/K (resistance mode) 0.729 mV/K (voltage mode), along stable performance across varying ranges. Furthermore, has been successfully applied monitor human motion (e.g., finger bending, wrist movement) signals electrocardiogram (ECG), electromyogram (EMG), electroencephalogram (EEG), highlighting its significant potential in health monitoring. By employing efficient method, presents high-performance sensor, offering novel insights technical support advancement devices.
Язык: Английский
Процитировано
0
Luminescence, Год журнала: 2025, Номер 40(3)
Опубликована: Март 1, 2025
ABSTRACT In recent years, with the rapid development of flexible electronics, implantable electronic devices have received increasing attention, and they provide new solutions for medical diagnosis treatment. To ensure long‐term stable operation in internal environment, materials conductivity, flexibility, biocompatibility, other properties are high demand. Hydrogels polymers three‐dimensional network structures that not only physical chemical similar to those biological tissues but can be also modulated by introducing functional groups regulate adhesion, self‐healing, functions. Therefore, hydrogel‐based bioelectronic considered a candidate direction future biomedical field. Here, this paper reviews research progress molecular design performance modulation functionalized hydrogels based on four key hydrogels: toughness. The latest use device applications is summarized below. Finally, discussions given challenges opportunities devices.
Язык: Английский
Процитировано
0