High sensitivity and excellent durability of wearable microenvironmental humidity sensors inspired by the spider-web

Duan, Chao; Zhang, Zhaoyang; Zhang, Xiaolei; An, Mengjie; Zhang, Yujia; Liu, Yiping; Lü, Ming

doi:10.1016/j.snb.2022.133056

Cited by 13 publications

(2 citation statements)

References 30 publications

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“…In formula (6), m and n are the horizontal coordinates of the endpoints in the lattice structure, and f(x) is the radial structure. Therefore, the length of the helix can be represented by formula (7).…”

Section: Energy Absorbing Structure For Sw Biomimetic Materialsmentioning

confidence: 99%

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Porous material energy absorbing structure based on spider web biomimetic structure

Zhang,

Wang

2024

Manufacturing Rev.

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In the context of environmental protection and energy conservation, it is of great practical significance to study the design of porous material energy absorbing structures on the ground of spider web biomimetic structures. This study designs a porous material energy absorbing structure on the ground of a biomimetic spider web structure. Through in-depth research and experiments, the characteristics of this structure in efficient energy absorption are demonstrated. It has three types of energy absorbing structures: simple design, spiral and composite. The experimental data showed that the simple structure exhibited an energy absorption of 50 mJ under a 5J impact force, with an energy absorption efficiency of 10 mJ/g. At a 20J impact force, the energy absorption reached 200 mJ and the energy absorption efficiency was 40 mJ/g. Under parameter optimization, the cross-sectional diameter of the spiral and the cross-sectional area of the radial significantly affected the energy absorption effect. Reducing the cross-sectional diameter of the spiral from 0.55 mm to 0.45 mm would result in a decrease in energy absorption from 1.775J to 1.59J. When the cross-sectional area of the radial line changed from 0.5 to 0.45, the energy absorption effect decreased from 1.775J to 1.644J. Under static load, the composite structure had a 700 N triggering force and lower peak stress compared to the spiral structure under a compression displacement of 10 mm without compaction. The comprehensive performance of the composite structure is superior. This study provides a reference for designing more efficient and reliable energy absorbing materials, and the results have theoretical significance and practical application value. On the ground of experimental data and conclusions, biomimetic spider web structures can achieve safe, efficient, and reliable energy absorption protection in modern industrial applications, providing important theoretical support and technical guidance. The study of the energy absorption structure of porous materials based on spider web biosimulation has important theoretical and practical value in improving the safety, efficiency, and reliability of modern industrial applications. It provides a new direction and strategy for the development and application of high-performance energy absorption materials.

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Section: Energy Absorbing Structure For Sw Biomimetic Materialsmentioning

confidence: 99%

“…On the other hand, with the increasing demand for material performance, the application range of energy absorbing materials in multiple fields is also constantly expanding. Traditional energy absorbing materials have certain limitations, such as susceptibility to environmental changes and susceptibility to damage [4][5][6].…”

Section: Introductionmentioning

confidence: 99%

Porous material energy absorbing structure based on spider web biomimetic structure

Zhang,

Wang

2024

Manufacturing Rev.

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Flexible Pressure, Humidity, and Temperature Sensors for Human Health Monitoring

Li,

Fang,

Wei

et al. 2024

Adv Healthcare Materials

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The rapid advancements in artificial intelligence, micro‐nano manufacturing, and flexible electronics technology have unleashed unprecedented innovation and opportunities for applying flexible sensors in healthcare, wearable devices, and human–computer interaction. The human body's tactile perception involves physical parameters such as pressure, temperature, and humidity, all of which play an essential role in maintaining human health. Inspired by the sensory function of human skin, many bionic sensors have been developed to simulate human skin's perception to various stimuli and are widely applied in health monitoring. Given the urgent requirements for sensing performance and integration of flexible sensors in the field of wearable devices and health monitoring, here is a timely overview of recent advances in pressure, humidity, temperature, and multi‐functional sensors for human health monitoring. It covers the fundamental components of flexible sensors and categorizes them based on different response mechanisms, including resistive, capacitive, voltage, and other types. Specifically, the application of these flexible tactile sensors in the area of human health monitoring is highlighted. Based on this, an extended overview of recent advances in dual/triple‐mode flexible sensors integrating pressure, humidity, and temperature tactile sensing is presented. Finally, the challenges and opportunities of flexible sensors are discussed.

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Flexible MXene/bamboo cellulose fiber/TPU membrane based humidity sensor for non-contact monitoring of human physiological signals

Gong,

Chen,

Yan

et al. 2024

Cellulose

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High sensitivity and excellent durability of wearable microenvironmental humidity sensors inspired by the spider-web

Cited by 13 publications

References 30 publications

Porous material energy absorbing structure based on spider web biomimetic structure

Porous material energy absorbing structure based on spider web biomimetic structure

Flexible Pressure, Humidity, and Temperature Sensors for Human Health Monitoring

Flexible MXene/bamboo cellulose fiber/TPU membrane based humidity sensor for non-contact monitoring of human physiological signals

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