Pressure sensor with wide detection range and high sensitivity for wearable human health monitoring DOI

Lingchen Liu,

Ying Yuan,

Hao Xu

и другие.

Journal of Semiconductors, Год журнала: 2025, Номер 46(4), С. 042401 - 042401

Опубликована: Апрель 1, 2025

Abstract High-performance flexible pressure sensors have garnered significant attention in fields such as wearable electronics and human-machine interfaces. However, the development of that simultaneously achieve high sensitivity, a wide detection range, good mechanical stability remains challenge. In this paper, we propose piezoresistive sensor based on Ti 3 C₂Tx (MXene)/polyethylene oxide (PEO) composite nanofiber membrane (CNM). The sensor, utilizing MXene (0.4 wt%)/PEO (5 wt%), exhibits sensitivity (44.34 kPa −1 at 0−50 kPa, 12.99 50−500 kPa) can reliably monitor physiological signals other subtle cues. Moreover, features range (0−500 kPa), fast response recovery time (~150/45 ms), excellent (over 10 000 cycles maximum load). Through an MXene/PEO array, demonstrate its applications human signal monitoring, providing reliable way to expand application MXene-based sensors.

Язык: Английский

Formaldehyde Sensing in Mixed Gas Environments Using Co3O4-Encapsulated ZnO-Based Yolk–Shell Spheres for Breath Analysis DOI
Rui Zhang, Qingan Li,

Chuanqun Liu

и другие.

ACS Applied Nano Materials, Год журнала: 2025, Номер unknown

Опубликована: Фев. 17, 2025

Язык: Английский

Процитировано

0
Large‐Scale 2D Perovskite Nanocrystals Photodetector Array via Ultrasonic Spray Synthesis DOI Creative Commons

Yoon Ho Lee,

Won‐June Lee,

Gang San Lee

и другие.

Advanced Materials, Год журнала: 2025, Номер unknown

Опубликована: Фев. 19, 2025

Abstract 2D perovskite (PVSK) single crystals have received significant attention due to their unique optical and optoelectronic properties. However, current synthesis methods face limitations, particularly in large‐area fabrication, which remain critical barriers practical applications. In this study, the of red/green/purple‐blue‐colored PVSK nanocrystals over a large area (4‐inch wafer) fabrication high‐performance photodetector arrays are presented via facile yet efficient spray‐coating approach with liquid‐bridge transport effect. The array achieves 100% working yield, high photo‐responsivity (1.5 × 10 6 A W −1 ) specific‐detectivity (1.1 16 Jones) competitive photomapping characteristics. An intelligent vision system for automatic shape recognition is further demonstrated rate exceeding 90%. This study provides advances scalable nanoscale crystals, integration into devices, potential use artificial‐intelligence systems.

Язык: Английский

Процитировано

0
Layer-by-Layer Self-Assembled Honeycomb Structure Flexible Pressure Sensor Array for Gait Analysis and Motion Posture Recognition with the Assistance of the ResNet-50 Neural Network DOI
Hao Zhang,

Chunqing Yang,

Hui Xia

и другие.

ACS Sensors, Год журнала: 2025, Номер unknown

Опубликована: Март 10, 2025

With the rapid emergence of flexible electronics, pressure sensors are importance in various fields. In this study, a dopamine-modified melamine sponge (MS) was used to prepare honeycomb structure carbon black (CB)/MXene-silicone rubber (SR)@MS sensor (CMSM) through layer-by-layer self-assembly technology. Using SR as binder construct not only improves mechanical properties but also provides more attachment sites for CB/MXene, enhancing stability conductive network. The CMSM exhibits high sensitivity (7.44 kPa-1), wide detection range (0-240 kPa), short response/recovery times (150 ms/180 ms), and excellent stability. addition, smart insole has been developed based on 6-unit array, achieving plantar detection. By combination ResNet-50 neural network algorithm with data under different postures, recognition 16 types human motion postures achieved, an accuracy rate 90.63%. This study proposes performance sensing capabilities, providing new ideas references design wearable devices.

Язык: Английский

Процитировано

0
Lattice Distortion Confinement Induced by Cationic Vacancy for Ambient Temperature Durable Aluminum‐Ion Batteries DOI Open Access
Wei Shang, Yue Liu, Yichun Liu

и другие.

Advanced Functional Materials, Год журнала: 2025, Номер unknown

Опубликована: Март 16, 2025

Abstract 3D accessible Mn‐based Prussian blue analogues (PBAs) framework shows great potential in serving as host for carriers. However, their inevitable Jahn–Teller distortion (JTD) induced by Mn 3+ ions bring uncertainty structural and phase‐change robustness during carrier reversible intercalation, particularly highly charged Al with strong Coulombic interaction. Herein, a cationic vacancy design on sites (V ) is proposed high‐performance storage. By virtue of low‐cost Na 2 EDTA molecules, the introduction V , undesired JTD, corresponding can be well‐suppressed. As result, enhanced PBAs exhibits excellent long‐term cyclic stability favorable intercalation energies In addition, as‐assembled MoO 3 //V ‐PBAs full cell batteries operate wide temperature range from −15 to 50 °C, without any additives aqueous electrolyte. This work highlights comprehensive availability strategy Al‐ion within ambinent temperature, further, providing novel sight sustainable development next‐generation energy storage technique.

Язык: Английский

Процитировано

0
Neuromorphic Computing Using Synaptic Plasticity of Supercapacitors DOI Creative Commons
Ling Wang, Xing Liu, Guangcai Zhang

и другие.

Advanced Science, Год журнала: 2025, Номер unknown

Опубликована: Март 24, 2025

Neuromorphic computing systems convert multimodal signals to electrical responses for artificial intelligence recognition. Energy is consumed during both the response enhancement and depression, making suffer from high energy consumption. This study presents a neuromorphic pathway based on supercapacitors. MXene Ti₃C₂Tx supercapacitors are fabricated current stimuli voltage responses. The depression tunable through adjusting charging discharging stimuli, thus exhibiting synaptic plasticity. Typical behaviors demonstrated, including short-term memory, long-term paired-pulse facilitation, learning experience. Next, used recognize Braille numbers represented by 3 × 4 arrays. A charging/discharging pulse train representing each array applied supercapacitor. collected converted 12-pixel greyscale images. Once images 0-9 input into neural networks deep diffraction networks, 100% accuracy can be achieved recognizing ten numbers. Because stored in supercapacitor released once declines, this research demonstrates potential applications of storage devices computing, providing an innovative way develop energy-efficient brain-like systems.

Язык: Английский

Процитировано

0
In Situ Polarization Enables Dipole Alignment of α-Phase Polyamide 11 Nanoribbons for Breathable Triboelectric Textile DOI
Ning Wang,

Weifeng Yang,

Shuhan Wang

и другие.

ACS Applied Materials & Interfaces, Год журнала: 2025, Номер unknown

Опубликована: Март 27, 2025

Triboelectric textiles have been extensively studied for wearable energy applications, including single-fiber power generation, humidity-resistant air-breakdown-based etc. However, intrinsic tribo-charge transfer in fiber- or textile-based triboelectric materials remains at a low level. Here, we propose polarization strategy to enhance performance using α-phase polyamide 11 nanoribbons. By employing high-voltage electrostatic field during electrospinning, achieve situ of 11, resulting an 116% improvement the 11-based nonwovens. Additionally, apply cold pressing optimize specific surface area and air permeability all-fiber-energy nonwoven, achieving balance high electrical wearability. We further demonstrate applications this nanofiber-based textile wireless sensing breathable insoles. This all-fiber enhancement provides valuable insights development high-performance future.

Язык: Английский

Процитировано

0
Flexible Strain Sensor Enabled by Back Propagation Neural Network for Gesture Recognition DOI Creative Commons
Yikai Wu, Jinpeng Wang, Can Wang

и другие.

Advanced Intelligent Systems, Год журнала: 2025, Номер unknown

Опубликована: Апрель 15, 2025

Gesture recognition utilizing flexible strain sensors is widely applied in human–machine interfaces. However, it limited to strict environmental requirements and inadequate accuracy. Herein, a sensor developed based on microfluidics using back propagation (BP) neural network for highly accurate gesture recognition. The microfibers are achieved with stretchable polyurethane shells conductive liquid metal cores convenient, safe, effective way. Further, by combining 3D printing microfluidics, the microfiber units constructed. Because of great advantages mechanical electrical performance units, shows impressive stretching conductivity. When finger, converts bending deformation into signals directly. Thus, set attached five fingers record corresponding different gestures, which can be further analyzed To improve accuracy, combined BP network. With introduced input layer as characteristic values training set, high‐precision updating weights through training. This strategy has broad application potential biomedicine, aerospace, other fields.

Язык: Английский

Процитировано

0
Superior sulfur conversion reaction on phosphorus-doped carbon dot/graphene composites for Li-S batteries in a wide working temperature range DOI Creative Commons
Shilin Chen,

Kaijie Miao,

Jiangqi Zhou

и другие.

Green Chemical Engineering, Год журнала: 2025, Номер unknown

Опубликована: Апрель 1, 2025

Язык: Английский

Процитировано

0
Design of Highly Stretchable, Self‐Adhesive Ionic Conductive Hydrogels for Wearable Strain Sensors DOI Creative Commons

Huawei Gao,

Yupan Han,

Mengjie Huang

и другие.

Advanced Sensor Research, Год журнала: 2025, Номер unknown

Опубликована: Апрель 21, 2025

Abstract Conductive hydrogels (CHs) have received numerous attentions for potential applications in flexible electronics. However, the construction of high‐performance CHs with high stretchability, favorable electrical conductivity, and reversible adhesiveness simultaneously still remains a great challenge. Herein, an ionic CH above characteristics is proposed via introducing phytic acid (PA) into semi‐interpenetrating cross‐linked network poly(acrylamide‐co‐N‐(hydroxymethyl) acrylamide) chitosan hydrogels. The synergy hydrogen bonds electrostatic interactions endows obtained hydrogel stretchability (1131%), toughness (88.32 kJ·m −3 ), satisfactory (25.78 kPa to wood). presence PA enables composite exhibit conductivity. Impressively, resultant can be assembled wearable strain sensor present sensitivity 1.32 wide response range (0–1131%), rapid time (340 ms), excellent cyclic stability. More importantly, prepared stain precisely recognize complicated human movements physiological activities realize information encryption, making this promising candidate preparing

Язык: Английский

Процитировано

0
Pressure sensor with wide detection range and high sensitivity for wearable human health monitoring DOI

Lingchen Liu,

Ying Yuan,

Hao Xu

и другие.

Journal of Semiconductors, Год журнала: 2025, Номер 46(4), С. 042401 - 042401

Опубликована: Апрель 1, 2025

Abstract High-performance flexible pressure sensors have garnered significant attention in fields such as wearable electronics and human-machine interfaces. However, the development of that simultaneously achieve high sensitivity, a wide detection range, good mechanical stability remains challenge. In this paper, we propose piezoresistive sensor based on Ti 3 C₂Tx (MXene)/polyethylene oxide (PEO) composite nanofiber membrane (CNM). The sensor, utilizing MXene (0.4 wt%)/PEO (5 wt%), exhibits sensitivity (44.34 kPa −1 at 0−50 kPa, 12.99 50−500 kPa) can reliably monitor physiological signals other subtle cues. Moreover, features range (0−500 kPa), fast response recovery time (~150/45 ms), excellent (over 10 000 cycles maximum load). Through an MXene/PEO array, demonstrate its applications human signal monitoring, providing reliable way to expand application MXene-based sensors.

Язык: Английский

Процитировано

0