Flexible Pressure Sensors Enhanced by 3D‐Printed Microstructures DOI
Yuan Jin, Shaohua Xue, Yong He

et al.

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

Published: April 18, 2025

Abstract 3D printing has revolutionized the development of flexible pressure sensors by enabling precise fabrication diverse microstructures that significantly enhance sensor performance. These advancements have substantially improved key attributes such as sensitivity, response time, and durability, facilitating applications in wearable electronics, robotics, human–machine interfaces. This review provides a comprehensive analysis sensing mechanisms these sensors, emphasizing role microstructures, micro‐patterned, microporous, hierarchical designs, optimizing The advantages techniques, including direct indirect methods, creation complex with high precision adaptability are highlighted. Specific applications, human physiological signal monitoring, motion detection, soft emerging explored to demonstrate versatility sensors. Additionally, this briefly discusses challenges, material compatibility, optimization difficulties, environmental stability, well trends, integration advanced technologies, innovative multidimensional promising avenues for future advancements. By summarizing recent progress identifying opportunities innovation, critical insights into bridging gap between research real‐world helping accelerate evolution sophisticated 3D‐printed microstructures.

Language: Английский

Degradable Multilayer Fabric Sensor with Wide Detection Range and High Linearity DOI
Junlong Huang,

Guangzhong Xie,

Xiangdong Xu

et al.

ACS Applied Materials & Interfaces, Journal Year: 2024, Volume and Issue: 16(43), P. 58838 - 58847

Published: Oct. 19, 2024

Integration of multiple superior features into a single flexible pressure sensor would result in devices with greater versatility and utility. To apply the device to variety scenarios solve problem accumulation e-waste environment, it is highly desirable combine degradability wide-range linearity characteristics device. Herein, we reported degradable multilayer fabric (DMF) consisting an ellipsoidal carbon nanotube (ECNT) polyvinylpyrrolidone/cellulose acetate electrospun fibers (PEF). The alternative layer-by-layer stacking ECNT PEF notably accelerates sensitivity toward pressure. optimized demonstrated 3.38 kPa-1 over wide measurement range from 0.1 500 kPa, as well great mechanical stability 2000 cycles. A good degradation performance was confirmed by both Fourier transform infrared (FTIR) characterization decomposition experiments sodium hydroxide solution. fabricated capable precepting physiological including subtle arterial pulse, dancing training, walking postures, accidental falls. This work throws light onto fundamental understanding interfacial coupling piezoresistive materials provides possibilities for design development on-demand wearable electronics.

Language: Английский

Citations

27
A Highly Sensitive Strain Sensor with Wide Linear Sensing Range Prepared on a Hybrid-Structured CNT/Ecoflex Film via Local Regulation of Strain Distribution DOI
Tao Hu, Bin Sheng

ACS Applied Materials & Interfaces, Journal Year: 2024, Volume and Issue: unknown

Published: April 11, 2024

With the development of information technology, high-performance wearable strain sensors with high sensitivity and stretchability have played a significant role in motion detection. However, many high-sensitivity outstanding-stretchability possess limited linear sensing range, which limits enhancement flexible sensors' performance. Herein, we develop hybrid-structured carbon nanotube (CNT)/Ecoflex sensor laser-engraved grooves along punched circular holes composite CNT/Ecoflex film by vacuum filtration permeation. By optimizing distribution holes, layer can be locally regulated, alters morphology cracks under allows to simultaneously exhibit (GF = 43.8) as well wide range (200%). On basis excellent performance, is capable detecting movements various parts human body, including larynx joint bending.

Language: Английский

Citations

14
Incorporating Machine Learning Strategies to Smart Gloves Enabled by Dual-Network Hydrogels for Multitask Control and User Identification DOI
Jianwen Liu,

Zhicheng Qiu,

Hao Kan

et al.

ACS Sensors, Journal Year: 2024, Volume and Issue: 9(4), P. 1886 - 1895

Published: March 26, 2024

Smart gloves are often used in human–computer interaction scenarios due to their portability and ease of integration. However, application the field information security has been less studied. Herein, we propose a smart glove using an iontronic capacitive sensor with significant pressure-sensing performance. Besides, operator interface developed match glove, which is capable multitasking integration mouse movement, music playback, game control, message typing Internet chat rooms by capturing encoding finger-tapping movements. In addition, integrating machine learning, can mine characteristics individual behavioral habits contained signals and, based on this, achieve deep binding user glove. The proposed greatly facilitate people's lives, as well explore new strategy research data security.

Language: Английский

Citations

9
Sacrificial 3D printing to fabricate MXene-based wearable sensors with tunable performance DOI
Amr Osman, Hui Liu, Jian Lü

et al.

Chemical Engineering Journal, Journal Year: 2024, Volume and Issue: 484, P. 149461 - 149461

Published: Feb. 9, 2024

Language: Английский

Citations

8
Multiscale Heterogeneities-Based Piezoresistive Interfaces with Ultralow Detection Limitation and Adaptively Switchable Pressure Detectability DOI
Xuecheng He, Zequn Cui, Feilong Zhang

et al.

ACS Nano, Journal Year: 2024, Volume and Issue: 18(11), P. 8296 - 8306

Published: March 7, 2024

Mechanical compliance and electrical enhancement are crucial for pressure sensors to promote performances when perceiving external stimuli. Here we propose a bioinspired multiscale heterogeneity-based interface adaptively regulate its structure layout switch desirable piezoresistive behaviors with ultralow detection limitation. In such heterogeneities system, the micro-/nanoscale spiny Ag-MnO2 heterostructure contributes an limitation of 0.008 Pa can perceive minor increments under preloads high resolution (0.0083%). The macroscale heterogeneous orientation cellular backbone enables anisotropic deformation, allowing sensor rational sensitivity working range (e.g., 580 kPa–1 0–20 kPa/54 60–140 kPa) as required. sensor's stepwise activation progresses from orientation, which match diverse sensing tasks in complex applications scenarios. This switchable design holds immense potential development intelligent electromechanical devices, including wearable sensors, soft robotics, smart actuators.

Language: Английский

Citations

8
Breathable and Highly Sensitive Self-Powered Pressure Sensors for Wearable Electronics and Human-Machine Interaction DOI
Lijun Wu, Jinrong Huang,

Yiqun Chen

et al.

Composites Science and Technology, Journal Year: 2025, Volume and Issue: unknown, P. 111078 - 111078

Published: Jan. 1, 2025

Language: Английский

Citations

1
Rapid Thermal Runaway Detection of Lithium-Ion Battery via Swelling-Based State-of-Charge Monitoring Using Piezoresistive Sponge Sensor DOI
Joohyung Bang, Byungkwon Chun, Minhyeok Kim

et al.

eTransportation, Journal Year: 2025, Volume and Issue: unknown, P. 100404 - 100404

Published: Feb. 1, 2025

Language: Английский

Citations

1
Design of a stable wearable piezoresistive sensor with a laminated pattern for simultaneous anti-wetting and self-power DOI
Haoyang Song, Junchi Ma, Chenglong Li

et al.

Chemical Engineering Journal, Journal Year: 2023, Volume and Issue: 481, P. 148346 - 148346

Published: Dec. 25, 2023

Language: Английский

Citations

18
A novel piezoresistive sensor with rectification properties DOI Creative Commons

Minliang Li,

Tao Wang,

Changdao Han

et al.

Materials & Design, Journal Year: 2024, Volume and Issue: 239, P. 112782 - 112782

Published: Feb. 20, 2024

Flexible piezoresistive sensors with high sensitivity, low cost, and good durability have been studied for widely use in automatic testing, control technology, wearable devices. Most can be regarded as varying resistances under different pressures, which do not current directionality. Here, we report a novel sensor rectification characteristic by doping reduced graphene oxide (rGO) powder into (GO) film. This exhibits rectifying low-frequency alternating (AC) signals, coupled an increase resistance change rate response to increased pressure within approximately 24 kPa. When the applied exceeds threshold, tends saturation, reaching up 99.9 %. The has peak sensitivity of 9.65 kPa−1, great stability durability, remaining stable performance 5500 cycles test. also fast time 72 ms recovery 26 ms. Our work provides simple way fabricate next-generation diode sensor.

Language: Английский

Citations

7
Flexible, Wearable Mechano‐Acoustic Sensors for Real‐Time, Wireless Monitoring of Low Frequency Body Sounds DOI Creative Commons
Trung Thien Hoang,

Alexander Mark Cunio,

Sinuo Zhao

et al.

Advanced Sensor Research, Journal Year: 2024, Volume and Issue: 3(10)

Published: June 20, 2024

Abstract Measurements of low‐frequency physiological signals, such as heart rate and pulse waves, play an essential role in biomedical applications for the early diagnosis abnormal cardiovascular activities. Recent advances flexible mechanical electronics represent a novel concept miniaturized, wearable sensors measurement that can be used ambulatory environments. However, most require sensing element to placed directly on skin surface, which lead performance degradation or device damage due significant deformation external forces from skin‐object interactions. This work addresses this challenge by developing soft, stretchable mechano‐acoustic platforms where all components are not subjected movement deformation. Instead, design allows waves propagate through hollow, microchannel, vibrate piezoresistive element. Experimental studies demonstrate complete wireless system capable detecting rates, with results consistent those commercially available devices. The proposed develop other systems air‐channel pad swallowing patterns users’ laryngeal movements, facilitating non‐invasive remote platform potential monitoring, assessment dysphagia.

Language: Английский

Citations

5