Self-powered and degradable humidity sensors based on silk nanofibers and its wearable and human–machine interaction applications

Chemical Engineering Journal, Journal Year: 2024, Volume and Issue: 497, P. 154443 - 154443

Published: July 31, 2024

Language: Английский

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Nitrogen‐Doped Indium Oxide Electrochemical Sensor for Stable and Selective NO₂ Detection

Advanced Materials, Journal Year: 2024, Volume and Issue: 36(41)

Published: Aug. 19, 2024

Abstract Efficient gas sensors are critical for environmental monitoring and industrial safety. While metal oxide semiconductor (MOS) cost‐effective, they struggle with poor selectivity, high operating temperatures, limited stability. Electrochemical sensors, though selective energy‐efficient, face costs, stability issues due to precious catalysts like platinum on carbon (Pt/C). Herein, a novel, cost‐effective electrochemical sensor using nitrogen‐doped indium In 2 O 3− x N /3 V (0.01≤ ≤0.14), synthesized varying nitriding times is presented. The optimized 3 N‐40 min demonstrates remarkable response current of 771 nA 10 ppm nitrogen dioxide (NO ) at ambient temperature, outstanding long‐term (over 30 days) rapid response/recovery (5/16 s). Compared Pt/C it shows 84% 67% reductions in recovery times, respectively, maintains 98% performance after month, versus 68% Pt/C. This presents promising alternative sensing, eliminating the need catalysts.

Language: Английский

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Boosting flexible electronics with integration of two‐dimensional materials

InfoMat, Journal Year: 2024, Volume and Issue: 6(7)

Published: June 4, 2024

Abstract Flexible electronics has emerged as a continuously growing field of study. Two‐dimensional (2D) materials often act conductors and electrodes in electronic devices, holding significant promise the design high‐performance, flexible electronics. Numerous studies have focused on harnessing potential these for development such devices. However, to date, incorporation 2D rarely been summarized or reviewed. Consequently, there is an urgent need develop comprehensive reviews rapid updates this evolving landscape. This review covers progress complex material architectures based materials, including interfaces, heterostructures, 2D/polymer composites. Additionally, it explores wearable energy storage conversion, display touch technologies, biomedical applications, together with integrated solutions. Although pursuit high‐performance high‐sensitivity instruments remains primary objective, also warrants consideration. By combining multiple functionalities into singular device, augmented by machine learning algorithms, we can potentially surpass performance existing technologies. Finally, briefly discuss future trajectory burgeoning field. discusses recent advancements sensors made from their applications architecture device design.

Language: Английский

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Fast response flexible humidity sensors based on Ti₃C₂T_x MXene-heterostructures for multifunctional applications

Journal of Materials Chemistry C, Journal Year: 2024, Volume and Issue: 12(13), P. 4809 - 4816

Published: Jan. 1, 2024

The designed Ti 3 C 2 T x /SnO humidity sensors are endowed with rapid response time and excellent sensing performance, which also display the great potential for applications of real-time respiratory monitoring non-contact measurements.

Language: Английский

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Printed Self‐Healing Stretchable Electronics for Bio‐signal Monitoring and Intelligent Packaging

Small, Journal Year: 2024, Volume and Issue: unknown

Published: May 1, 2024

Abstract Integrating self‐healing capabilities into printed stretchable electronic devices is important for improving performance and extending device life. However, achieving with excellent device‐level healing ability stretchability while maintaining outstanding electrical remains challenging. Herein, a series of achieved by depositing liquid metal/silver fractal dendrites/polystyrene‐block‐polyisoprene‐block‐polystyrene (LM/Ag FDs/SIS) conductive inks onto thermoplastic polyurethane (TPU) film via screen printing method. Owing to the fluidic properties LM interfacial hydrogen bonding disulfide bonds TPU, as‐obtained maintain good under strain exhibit without external stimulation. Printed electrodes possess high conductivity (1.6 × 10 5 S m −1 ), electromechanical properties, dynamic stability, only 2.5‐fold increase in resistance at 200% strain, even after complete cut re‐healing treatment. The capacitive sensor shows linearity (R 2 ≈0.9994) wide sensing range (0%–200%) successfully applied bio‐signal detection. Furthermore, smart label designed can be used real‐time environmental monitoring, which exhibits promising potential practical application food preservation packaging.

Language: Английский

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Biomimetic multilayer flexible sensors for multifunctional underwater sensing

Chemical Engineering Journal, Journal Year: 2024, Volume and Issue: 492, P. 152273 - 152273

Published: May 15, 2024

Language: Английский

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Carrageenan-modified MXene nanocomposite-based all-printed flexible humidity sensor for healthcare application

Sensors and Actuators B Chemical, Journal Year: 2024, Volume and Issue: 418, P. 136316 - 136316

Published: July 24, 2024

Language: Английский

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A Biomimetic Asymmetric Structured Intelligent Wound Dressing with Dual-modality Humidity-pressure Sensing for Non-invasive and Real-time Wound Healing Monitoring

Advanced Fiber Materials, Journal Year: 2024, Volume and Issue: unknown

Published: Aug. 19, 2024

Language: Английский

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Fully Stretchable and Self-Healing Graphene-Hydrogel E-Skin with Temperature-Strain Self-Calibration

ACS Applied Nano Materials, Journal Year: 2025, Volume and Issue: unknown

Published: Feb. 5, 2025

Language: Английский

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Scalable Fabrication of Uniform Fast‐Response Humidity Field Sensing Array for Respiration Recognition and Contactless Human‐Machine Interaction

Advanced Functional Materials, Journal Year: 2025, Volume and Issue: unknown

Published: April 30, 2025

Abstract In the wake of COVID‐19 pandemic, there is an increased demand for humidity sensors that can accurately detect targets without direct contact, driving advancements in contactless human‐machine interaction (HMI) and non‐invasive medical diagnostics. However, it difficult traditional individual to acquire field information reliable HMI. Here, ionogel film‐based flexible fast‐response sensing array developed via a scalable, efficient, modified spin‐coating‐based fabrication strategy accurate detection distribution. By optimizing structure constitution hydrophobic films, display ultrafast response recovery time (0.65/0.85 s), broad range (11‐98% RH), long‐term stability (120 days), excellent repeatability, flexibility, environmental tolerances. Thanks one‐time scalable fabrication, units exhibit superior uniformity, as device‐to‐device deviation reduced one‐ninth compared multi‐batch methods. With aid machine learning algorithms, this realizes not only identification various subtle breath abnormalities (e.g., oral breathing, apnea, left right nasal congestions) by conformally attaching wearable masks, but also precise HMI applications anti‐interference gesture recognition wireless control intelligent executive terminals).

Language: Английский

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