Fabrication of highly pressure-sensitive, hydrophobic, and flexible 3D carbon nanofiber networks by electrospinning for human physiological signal monitoring

Han, Zhiyuan; Cheng, Zhiqiang; Chen, Ying; Li, Bo; Liang, Ziwei; Li, Hangfei; Ma, Yinji; Feng, Xue

doi:10.1039/c8nr08341j

Cited by 97 publications

(64 citation statements)

References 43 publications

(48 reference statements)

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“…The schematic shown in Figure 6 illustrates the use of yarns for developing electronic fabrics. The cross-over points between the elastic composite yarns serve as capacitive Using similar approach, textiles for wearable electronic skin applications can be developed by incorporating pressure-sensitive materials into the fabric [33][34][35]. For such applications, functional polymers such as piezoelectric or conductive polymers are typically used and integrated into the fabrics [36][37][38].…”

Section: Composite Fibers and Multilayer Nanofiber Membranementioning

confidence: 99%

Emerging Developments in the Use of Electrospun Fibers and Membranes for Protective Clothing Applications

2020

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There has been increased interest to develop protective fabrics and clothing for protecting the wearer from hazards such as chemical, biological, heat, UV, pollutants etc. Protective fabrics have been conventionally developed using a wide variety of techniques. However, these conventional protective fabrics lack breathability. For example, conventional protective fabrics offer good protection against water but have limited ability in removing the water vapor and moisture. Fibers and membranes fabricated using electrospinning have demonstrated tremendous potential to develop protective fabrics and clothing. These fabrics based on electrospun fibers and membranes have the potential to provide thermal comfort to the wearer and protect the wearer from wide variety of environmental hazards. This review highlights the emerging applications of electrospinning for developing such breathable and protective fabrics.

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Section: Composite Fibers and Multilayer Nanofiber Membranementioning

confidence: 99%

Emerging Developments in the Use of Electrospun Fibers and Membranes for Protective Clothing Applications

2020

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“…8d. 27 The results show that this device not only possesses higher pressure-sensitivity (1.41 kPa −1 ), but also exhibits stable resilience and super compressibility (>95%), due to the nano-reinforcement of Al 2 O 3 . Similar to that of other conductive network based sensor, the pressure measurement principle is demonstrated in Fig.…”

Section: Strain and Pressurementioning

confidence: 86%

“…Especially in the biomedical field, electronic devices have to be flexible and/or stretchable in order to intimately integrate with the soft, deformable, and configuration-complicated biological tissue. [25][26][27][28][29][30] Flexibility of the electronic devices can be realized by reducing their thickness, since the bending stiffness decreases at a three orders faster speed with decreasing thickness, while stretchability can be achieved by pre-strain formed wavy configuration, island-bridge structure and serpentine and fractal interconnects design. 23,[31][32][33][34][35][36][37] The main idea in these strategies is to utilize the buckling/post buckling of the delicate patterned inorganic materials to minimize the strain in the functional layer while the whole devices are under large deformation.…”

Section: Introductionmentioning

confidence: 99%

Flexible inorganic bioelectronics

Chen¹,

et al. 2020

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Flexible inorganic bioelectronics represent a newly emerging and rapid developing research area. With its great power in enhancing the acquisition, management and utilization of health information, it is expected that these flexible and stretchable devices could underlie the new solutions to human health problems. Recent advances in this area including materials, devices, integrated systems and their biomedical applications indicate that through conformal and seamless contact with human body, the measurement becomes continuous and convenient with yields of higher quality data. This review covers recent progresses in flexible inorganic bio-electronics for human physiological parameters' monitoring in a wearable and continuous way. Strategies including materials, structures and device design are introduced with highlights toward the ability to solve remaining challenges in the measurement process. Advances in measuring bioelectrical signals, i.e., the electrophysiological signals (including EEG, ECoG, ECG, and EMG), biophysical signals (including body temperature, strain, pressure, and acoustic signals) and biochemical signals (including sweat, glucose, and interstitial fluid) have been summarized. In the end, given the application property of this topic, the future research directions are outlooked.

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“…Recently, benefited from the development of material science and manufacturing, many flexible tactile sensors have been realized based on different transduction mechanisms including capacitance, piezoelectricity, resistance, and triboelectricity . To increase the sensitivity of the sensor, microstructure have been introduced in many researches, such as pyramid, hemispheres, and micropillar .…”

Section: Introductionmentioning

confidence: 99%

“…The flexible piezoresistive sensors have been widely studied because of the simple structure and manufacturing process. Besides acting as the pressure sensor, many of them could be used in body motion sensing . Despite the wide applications these sensors have, they lack the ability to distinguish the stimulation from the force out of and in the plane.…”

Section: Introductionmentioning

confidence: 99%

High‐Performance Flexible Tactile Sensor Enabling Intelligent Haptic Perception for a Soft Prosthetic Hand

Liang

Cheng

Zhao

et al. 2019

Adv Materials Technologies

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Compared to the traditional motor‐driven prosthetic hand, a soft prosthetic hand (SPD) has intrisic advantages such as kinematics dexterity and friendly external interaction. In order for an SPD to realize the function of a real hand, the integration of flexible high‐performance tactile sensors is essential. Current research on flexible tactile sensors is mainly focused on increasing sensitivity, but ignores other issues, such as the complexity of arraying and compatibility with soft actuators. A high‐performance flexible force sensor enabling intelligent tactile perception for an SPD is reported. With the aid of reasonable arrangement of functional material and effective 3D structure design, the force sensor exhibits good linearity (R2 = 0.982), accuracy and repeatability, very low hysteresis, fast dynamical response (<1 ms), high stability (30000 loading–unloading cycles), stable performance under high frequency (>50 Hz), and can easily be arrayed and integrated with an SPD. With such a sensor mounted on its surface, an SPD achieves various complicated tasks in the same manner as a real hand, including feeling the softness of objects and imitating the process of traditional Chinese medicine pulse diagnosis to monitor a pulse wave in the radial artery. Finally, through use of a force‐sensor array, an SPD provides real‐time spatial distribution of pressure during the grabbing of objects.

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Fabrication of highly pressure-sensitive, hydrophobic, and flexible 3D carbon nanofiber networks by electrospinning for human physiological signal monitoring

Abstract: A versatile 3D carbon nanofiber network with an ultrahigh pressure-sensitivity is prepared to monitor human physiological signals.

Cited by 97 publications

References 43 publications

Emerging Developments in the Use of Electrospun Fibers and Membranes for Protective Clothing Applications

Emerging Developments in the Use of Electrospun Fibers and Membranes for Protective Clothing Applications

Flexible inorganic bioelectronics

High‐Performance Flexible Tactile Sensor Enabling Intelligent Haptic Perception for a Soft Prosthetic Hand

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