A Wireless Wearable Sensor System Based on a Silver Nanowire‐Decorated Silicon Nanomembrane for Precise and Continuous Hazardous Gas Monitoring DOI Creative Commons
Jongwoon Shin, Kyubeen Kim, In Sik Min

et al.

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

Published: Dec. 10, 2024

Abstract Wearable wireless gas sensors have attracted enormous interest due to precise, real‐time healthcare and environmental monitoring without temporal spatial limitations. Among various toxic gases, detecting ammonia is crucial because of its highly hazardous nature applicability as a noninvasive biomarker for diagnosing health conditions. In this study, silver nanowires‐decorated silicon nanomembrane (AgNW‐SiNM) chemiresistive sensor with high selectivity fully integrated an ultrathin flexible Joule heater communication system fabricate wearable system. The exhibits improved performance gas, attributed heating‐induced changes in adsorption/desorption rates, along electronic chemical sensitization facilitated by AgNW decoration. sensing stable responses ≈1.83, 1.47, 1.19 on the exposure at concentrations 10, 5, 1 ppm even under mechanical deformations. dynamic response wirelessly transmitted portable electronics displayed screen. Moreover, alerts users advance through haptic interface when exposed dangerous environments early evacuation. paves way timely warnings from more accurate medical diagnosis related respiratory disorders.

Language: Английский

Great Carbon Nano Materials based Composites for Electronic Skin: Intelligent Sensing, and Self-Powered Nano Generators DOI
Vineet Kumar, Nargish Parvin, Sang Woo Joo

et al.

Nano Energy, Journal Year: 2025, Volume and Issue: unknown, P. 110805 - 110805

Published: Feb. 1, 2025

Language: Английский

Citations

2
Body‐Coupled Multifunctional Human‐Machine Interfaces with Double Spiral Electrode Structure DOI Open Access
Guoliang Ma,

Liaoyuan Pu,

Congtian Gu

et al.

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

Published: March 3, 2025

Abstract Human‐machine interfaces (HMIs) serve as essential channels for communication between humans and machines. However, current HMIs often require the integration of batteries, multiple sensing components, electrodes, resulting in complex configurations, limited flexibility, poor scalability. In this work, a body‐coupled mechanism employing power–frequency electric magnetic field an energy source is proposed, HMI with double spiral electrode structure (DS‐HMI) has been designed based on mechanism. By comparing output peaks two electrodes encoding binary codes “0” “1”, DS‐HMI detects directions without need batteries or algorithms. The device demonstrates ultralow detection threshold (< 0.02 N), exceptional durability (> 100 000 cycles), robustness, high scalability, rapid capabilities (single‐bit completed 8 ms). successfully implemented security code systems, UAV control interfaces, robotic leg interfaces. This work offers novel insights principles advancing next‐generation interactive electronic devices, broad applications IoT, smart homes, VR/AR technologies.

Language: Английский

Citations

1
Soft, Stretchable, High-Sensitivity, Multi-Walled Carbon Nanotube-Based Strain Sensor for Joint Healthcare DOI Creative Commons
Zhimou Guo,

Xiaohe Hu,

Yaqiong Chen

et al.

Nanomaterials, Journal Year: 2025, Volume and Issue: 15(5), P. 332 - 332

Published: Feb. 21, 2025

Exoskeletons play a crucial role in joint healthcare by providing targeted support and rehabilitation for individuals with musculoskeletal diseases. As an assistive device, the accurate monitoring of user’s signals exoskeleton status using wearable sensors is essential to ensure efficiency conducting complex tasks various scenarios. However, balancing sensitivity stretchability devices applications remains significant challenge. Here, we introduce strain sensor detecting finger knee motions. The utilizes stretchable elastic conductive network, incorporating multi-walled carbon nanotubes (MWCNTs) into Ecoflex. concentration MWCNTs has been meticulously optimized achieve both high gauge factor (GF) stability. With its sensitivity, enabled be applied angle joints. By integrating human joints it can simultaneously detect flexion extension movements real-time. This holds potential enhancing performance improving technologies.

Language: Английский

Citations

0
Strain-Insensitive, Stretchable Thermoacoustic Loudspeaker with Entangled Carbon Nanotubes DOI

Sangjun Sim,

Eunhwan Jo,

Hyungyu Im

et al.

Published: Jan. 19, 2025

Language: Английский

Citations

0
Skin-interfaced multimodal sensing and tactile feedback system as enhanced human-machine interface for closed-loop drone control DOI
Chun Ki Yiu, Yiming Liu, Woo‐Young Park

et al.

Science Advances, Journal Year: 2025, Volume and Issue: 11(13)

Published: March 26, 2025

Unmanned aerial vehicles have undergone substantial development and market growth recently. With research focusing on improving control strategies for better user experience, feedback systems, which are vital operator awareness of surroundings flight status, remain underdeveloped. Current bulky manipulators also hinder accuracy usability. Here, we present an enhanced human-machine interface based skin-integrated multimodal sensing devices closed-loop drone control. This system captures hand gestures intuitive, rapid, precise An integrated tactile actuator array translates the drone’s posture into two-dimensional information, enhancing operator’s perception situation. Integrated obstacle detection neuromuscular electrical stimulation–based force enable collision avoidance path correction. combines intuitive controls to reduce training time cognitive load while stability, environmental awareness, posture. The use stretchable electronics addresses wearability bulkiness issues in traditional advancing design.

Language: Английский

Citations

0
Micro/Nano Self-Powered Device Based on Interface Regulation Strategy DOI
Yu Liu, Wenjun Dong, Y. Luan

et al.

Nano Energy, Journal Year: 2025, Volume and Issue: unknown, P. 110916 - 110916

Published: March 1, 2025

Language: Английский

Citations

0
Multilayer Step-like Microstructured Flexible Pressure Sensing System Integrated with Patterned Electrochromic Display for Visual Detection DOI

Mingye Zhu,

Congkai Chen,

Aoxi Yu

et al.

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

Published: May 14, 2025

Flexible pressure sensors have garnered significant attention for their potential in flexible electronics and interactive devices. However, such sensing devices typically rely on external bulky equipment data visualization, which prevents from becoming smaller more portable. Herein, we report a system that combines sensor with patterned electrochromic display. The layer has convex parallel line microarray structures, are constructed by direct ink writing (DIW) printing technology. multilayer microstructure every unit endows our high sensitivity of 20.25 kPa-1, wide linear response range up to 35 kPa, as well excellent durability (∼5000 cycles). display is designed common cathode structure via DIW printing, exhibits fast coloring time (<0.4 s) long-term (>6000 s). This work successfully demonstrates visualization human finger bending recognition weight measurement. Moreover, this will enhance the visualizable identification capabilities robotic hands prosthetics, thereby offering users intuitive real-time experience.

Language: Английский

Citations

0
A Wireless Wearable Sensor System Based on a Silver Nanowire‐Decorated Silicon Nanomembrane for Precise and Continuous Hazardous Gas Monitoring DOI Creative Commons
Jongwoon Shin, Kyubeen Kim, In Sik Min

et al.

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

Published: Dec. 10, 2024

Abstract Wearable wireless gas sensors have attracted enormous interest due to precise, real‐time healthcare and environmental monitoring without temporal spatial limitations. Among various toxic gases, detecting ammonia is crucial because of its highly hazardous nature applicability as a noninvasive biomarker for diagnosing health conditions. In this study, silver nanowires‐decorated silicon nanomembrane (AgNW‐SiNM) chemiresistive sensor with high selectivity fully integrated an ultrathin flexible Joule heater communication system fabricate wearable system. The exhibits improved performance gas, attributed heating‐induced changes in adsorption/desorption rates, along electronic chemical sensitization facilitated by AgNW decoration. sensing stable responses ≈1.83, 1.47, 1.19 on the exposure at concentrations 10, 5, 1 ppm even under mechanical deformations. dynamic response wirelessly transmitted portable electronics displayed screen. Moreover, alerts users advance through haptic interface when exposed dangerous environments early evacuation. paves way timely warnings from more accurate medical diagnosis related respiratory disorders.

Language: Английский

Citations

2