A super water-resistant MXene sponge flexible sensor for bifunctional sensing of physical and chemical stimuli

Xu, Yuqing; Qiang, Qinping; Zhao, Yaru; Li, Hongxing; Xu, Li; Liu, Chong; Wang, Yiya; Tao, Chengcheng; Xu, Yangkun; Lang, Tianchun; Lei, Zhao; Liu, Bitao

doi:10.1039/d2lc01008a

Cited by 8 publications

(5 citation statements)

References 58 publications

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“…Therefore, multifunctional sensors that can simultaneously detect pressure/strain and humidity have also attracted people’s attention. Most functional nanomaterials such as MXene, − carbon nanomaterials, − etc., and some water-sensitive polymers such as hydrophilic polymers (polyacrylamide, poly(vinyl alcohol), etc. ) − exhibit humidity sensitivity and can detect humidity using changes in resistance or capacitance caused by changes in humidity .…”

Section: Dual-modal Flexible Sensorsmentioning

confidence: 99%

Research Progress and Application of Multimodal Flexible Sensors for Electronic Skin

He,

Xu,

Xiao

et al. 2024

ACS Sens.

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In recent years, wearable electronic skin has garnered significant attention due to its broad range of applications in various fields, including personal health monitoring, human motion perception, human− computer interaction, and flexible display. The flexible multimodal sensor, as the core component of electronic skin, can mimic the multistimulus sensing ability of human skin, which is highly significant for the development of the next generation of electronic devices. This paper provides a summary of the latest advancements in multimodal sensors that possess two or more response capabilities (such as force, temperature, humidity, etc.) simultaneously. It explores the relationship between materials and multiple sensing capabilities, focusing on both active materials that are the same and different. The paper also discusses the preparation methods, device structures, and sensing properties of these sensors. Furthermore, it introduces the applications of multimodal sensors in human motion and health monitoring, as well as intelligent robots. Finally, the current limitations and future challenges of multimodal sensors will be presented.

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Section: Dual-modal Flexible Sensorsmentioning

confidence: 99%

Research Progress and Application of Multimodal Flexible Sensors for Electronic Skin

He,

Xu,

Xiao

et al. 2024

ACS Sens.

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“…Similarly, Li et al reported a piezoresistive pressure sensor based on an in situ grown silver/gold nanostructure on a melamine sponge ( Figure A), which showed a high sensitivity of 12 kPa –1 , a small response time of 85 ms, and excellent durability that could sustain over 2 × 10 4 cycles of compression. Xu et al reported the dip coating of MXene on a melamine sponge for the development of a porous sensor . Based on the response of MXene and the porous structure of the melamine sponge, the resistance of the MXene-coated melamine sponge exhibited a fast response and long-term stability, demonstrating its application in respiratory monitoring.…”

Section: Strategies To Realize Permeable Electronicsmentioning

confidence: 99%

Permeable Bioelectronics toward Biointegrated Systems

Lee,

Liang,

Kim

et al. 2024

Chem. Rev.

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Bioelectronics integrates electronics with biological organs, sustaining the natural functions of the organs. Organs dynamically interact with the external environment, managing internal equilibrium and responding to external stimuli. These interactions are crucial for maintaining homeostasis. Additionally, biological organs possess a soft and stretchable nature; encountering objects with differing properties can disrupt their function. Therefore, when electronic devices come into contact with biological objects, the permeability of these devices, enabling interactions and substance exchanges with the external environment, and the mechanical compliance are crucial for maintaining the inherent functionality of biological organs. This review discusses recent advancements in soft and permeable bioelectronics, emphasizing materials, structures, and a wide range of applications. The review also addresses current challenges and potential solutions, providing insights into the integration of electronics with biological organs.

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“…[1][2][3][4][5][6] Desirable flexible multifunctional DOI: 10.1002/adsr.202300048 sensors are capable of detecting and differentiating between physical stimuli (e.g., strain and stress) and chemical stimuli (e.g., chemical gas molecules). [7][8][9][10][11][12] And the flexible sensors, generally, are composed of conductive materials and flexible substrates. For the conductive materials, different kinds of polymers, such as polyaniline (PANI), polypyrrole (PPy), or poly (3,4-ethylene dioxythiophene), are the alternatives to expensive inorganic materials and carbon materials.…”

Section: Introductionmentioning

confidence: 99%

Flexible PANI/Lotus Stemmed Fiber Sensor for Bifunctional Sensing of Physical and Chemical Stimuli

Cheng

et al. 2023

Advanced Sensor Research

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In recent times, high‐performance flexible sensors that can be fabricated environmentally friendly and low‐costly have received considerable attention owing to their potential applications in wearable health monitoring. The combination of biocompatibility, degradability, and recyclability between the substrate and sensor layer remains a challenge. Here, a highly sensitive multifunctional sensor is developed using a polyaniline (PANI)‐coated lotus stem fabric (PANI/LSF) for body physical and chemical stimuli in a simple way. The lotus stem fabric has excellent breathability, skin compatibility, and lightweight as a flexible substrate. Its high sensitivity at low pressure is experimentally verified, which can reach 0.3 kPa−1 in the 0–1.5 kPa range. In addition, the sensor has low detection limitation and good linearity of response to water molecules and short response and recovery times for water in N2 or normal atmosphere at the range of 3.7–70.5% relative humidity (RH) and 19.6–66.8% RH, respectively. This can be successfully used in the recognition of various breathing behaviors. Therefore, the study has developed a breathable and skin‐friendly bifunctional sensor based on PANI and natural fabrics, which has great potential for application in human health care.

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A super water-resistant MXene sponge flexible sensor for bifunctional sensing of physical and chemical stimuli

Abstract: Flexible wearable sensors with multifunctional features have attracted great interest in various applications such as disease diagnosis, environmental detection and healthcare monitoring. However, it remains a challenge to achieve...

Cited by 8 publications

References 58 publications

Research Progress and Application of Multimodal Flexible Sensors for Electronic Skin

Research Progress and Application of Multimodal Flexible Sensors for Electronic Skin

Permeable Bioelectronics toward Biointegrated Systems

Flexible PANI/Lotus Stemmed Fiber Sensor for Bifunctional Sensing of Physical and Chemical Stimuli

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