A laser-scribed wearable strain sensing system powered by an integrated rechargeable thin-film zinc-air battery for a long-time continuous healthcare monitoring

Chen, Xue; Hou, Zhanrui; Li, Guoxian; Yu, Wei; Xue, Ye; Niu, Guangyu; Xin, Mingyang; Yang, Li; Meng, Chuizhou; Guo, Shuxiang

doi:10.1016/j.nanoen.2022.107606

Cited by 50 publications

(50 citation statements)

References 45 publications

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“…At present, flexible pressure sensors are mainly divided into resistive, capacitive, , piezoelectric, and self-powered , sensors. The selection of high-quality active materials and expansion of the contact area are the most important ways to obtain high-sensitivity pressure sensors. , On the one hand, two-dimensional (2D) materials have shown good performance advantages in the field of pressure sensors .…”

Section: Introductionmentioning

confidence: 99%

Wearable Pressure Sensor Array with Layer-by-Layer Assembled MXene Nanosheets/Ag Nanoflowers for Motion Monitoring and Human–Machine Interfaces

Zhang

Bao

et al. 2022

ACS Appl. Mater. Interfaces

109

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Recently, wearable sensors and electronic skin systems have become prevalent, which can be employed to detect the movement status and physiological signals of wearers. Here, a pressure sensor composed of mesh-like micro-convex structure polydimethylsiloxane (PDMS), MXene nanosheet/Ag nanoflower (AgNF) films, and flexible interdigital electrodes was designed by layer-by-layer (LBL) assembly. The unique microstructure of PDMS effectively increases the contact area and improves sensitivity. Moreover, AgNFs were introduced into the MXene as a “bridge,” and the synergistic effect of the two further enhanced the performance of the sensor. The pressure sensor has high sensitivity (191.3 kPa–1), good stability (18,000 cycles), fast response/recovery time (80 ms/90 ms), and low detection limit (8 Pa), so it can be used for all-round monitoring of the human body. Sensing arrays were integrated with a wireless transmitter as an intelligent artificial electronic skin for spatial pressure mapping and human–computer interaction sensing. Moreover, we develop a smart glove by a simple method, combining it with a 3D model for wireless accurate detection of hand poses. This provides ideas for hand somatosensory detection technology, leading to health monitoring, intelligent rehabilitation training, and personalized medicine.

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Section: Introductionmentioning

confidence: 99%

Wearable Pressure Sensor Array with Layer-by-Layer Assembled MXene Nanosheets/Ag Nanoflowers for Motion Monitoring and Human–Machine Interfaces

Zhang

Bao

et al. 2022

ACS Appl. Mater. Interfaces

109

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“…The degradation of the flexible battery may be due to the inherent deficient water retention capacity and inferior mass transfer efficiency of the gel electrolyte, resulting in deteriorated ionic conductivity that seriously limits the long-term cyclic performance of flexible ZABs. [61][62][63] Figure 5f shows the voltage curves of the flexible ZABs at various discharge currents from Furthermore, it is particularly noteworthy that flexible ZAB can steadily operate with stable discharge performance upon 90° bending and repeated bent cycling. Based on Figure 6d, the discharge voltage only attenuated by 72 mV compared to the initial voltage even after 1000 repetitions, which implies the long-term mechanical stability and prominent versatility of the flexible ZABs under a realistic deformation environment.…”

Section: Electrochemical Performance Of Flexible Zabsmentioning

confidence: 99%

“…Intriguingly, CoCu/N-CNS-2-based flexible ZABs can be easily integrated into series or in parallel, producing an OCP of 2.81 V for the two-battery assembly and 4.23 V for the threebattery assembly (FigureS15a,b, Supporting information). As depicted in Figure6a, the charge/discharge voltage gap of two in-series combined flexible ZABs is basically twice that of a single battery or two in-parallel combined flexible ZABs, which would meet the arbitrary integration requirements of flexible batteries [63]. Meanwhile, Nyquist plots of flexible ZABs with different connections can be observed in Figure6b.…”

mentioning

confidence: 91%

Synergistic Bimetallic CoCu‐Codecorated Carbon Nanosheet Arrays as Integrated Bifunctional Cathodes for High‐Performance Rechargeable/Flexible Zinc‐Air Batteries

Kuang

Shen

Zhang

et al. 2023

Small

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Nonetheless, the sluggish oxygen reduction/evolution reaction (ORR/OER) involving multi-step electron transfer at the multiphase interfaces of the airbreathing cathode deleteriously impact the energy efficiency and lifespan of ZABs with limited energy/power output. [4] Until now, noble-metal-based catalysts, that is, Pt/C and IrO 2 or RuO 2 , still stand out as the benchmark catalysts for ORR and OER, respectively, though the rare reserve and chemical susceptibility severely hinder their large-scale application. [5] Indeed, tremendous efforts have been made on the exploitation of proficient earth-abundant transition-metal based bifunctional oxygen catalysts, such as oxides, hydroxides, phosphides, sulfides, nitrides, etc., so as to activate the OER/ORR electrochemistry. [6][7][8][9] Unfortunately, ideal non-precious electrocatalysts with satisfactory bifunctional activities, robust durability, and appropriate structure for unobstructive mass transport are still very scarce. [10] Among diverse non-precious electrocatalysts, nanosized and atomically dispersed metallic Co-based catalysts have intrigued numerous recognition by virtue of the rich valence states for high OER activity, electrochemical stability, and abundance of cobalt resources. [11][12][13] By further conjugation with an N-doped carbon matrix to tune the coordination configuration between Co and N heteroatoms, the electronic structure of Co sites can be effectively optimized for more balanced adsorption of oxo-intermediates and improved ORR activity. [14][15][16] However, the formation of homogeneous and sufficient Co-N x active moieties is generally difficult, as the metallic loading in these Co-N-C catalysts is always restricted due to the high tendency of self-agglomeration and irreversible fusion of cobalt nanoparticles (NPs) during common pyrolysis synthesis. [17,18] By taking advantage of high specific surface area, excellent conductivity, and mechanical strength, heteroatoms-doped 2D nanocarbon could be useful to support and well distribute Co NPs for more exposed active sites, directional electron transfer and accelerated mass diffusion across the interspaces between the carbon nanosheets (CNSs), thus boosting the reversible oxygen reactions. [19,20] Besides, feasible strategies, including morphological control, heterostructure, surface reconfiguration, and interface

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“…Despite its paramount importance in agriculture, the gas-temperature sensors with decoupled sensing mechanisms especially those prepared by low-cost and scalable fabrication methods are rarely reported. 10 Sensors and sensing systems based on low-cost manufacturing approaches 11,12,13 start to gain momentum in health monitoring and precision medicine due to their capability to collect big data from a large population and the potential to be integrated with arti cial intelligence. Different from graphenebased sensors 14,15,16 prepared by complex and expensive synthesis/fabrication methods, 17,18 laserinduced graphene (LIG) foam can be simply created from a fast and low-cost laser scribing process to detect temperature 19,20 and NO X 21 .…”

Section: Introductionmentioning

confidence: 99%

Vanadium Oxide‐Doped Laser‐Induced Graphene Multi‐Parameter Sensor to Decouple Soil Nitrogen Loss and Temperature

et al. 2023

Self Cite

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Monitoring nitrogen utilization e ciency and soil temperature in agricultural systems for timely intervention is essential to monitor crop health, promote sustainable and precision agriculture, and reduce environmental pollution. Therefore, it is of vital signi cance to develop a multi-parameter sensor for effectively and accurately decoupled detection of nitrogen loss and soil temperature, which is yet to be reported. Herein, this work presents a high-performance multi-parameter sensor based on vanadium oxide (VO X )-doped laser-induced graphene (LIG) foam to completely decouple nitrogen oxides (NO X ) and temperature. By exploiting the laser-assisted synthesis, the highly porous 3D VO X -doped LIG foam composite is readily obtained by laser scribing of vanadium sul de (V 5 S 8 )-doped block copolymer and phenolic resin self-assembled lms. Compared with the intrinsic LIG, the heterojunction formed at the LIG/VO X interface provides the sensor with a signi cantly enhanced response to NO X and an ultralow limit of detection (LOD) of 3 ppb at room temperature. Meanwhile, the sensor can accurately detect temperature over a wide linear range of 10-110℃ with a small detection limit of 0.2℃. The encapsulation of the sensor with a soft membrane further allows for temperature sensing without being affected by NO X , presenting an effective strategy to decouple nitrogen loss and soil temperature for accurate soil environmental monitoring. The sensor without encapsulation but operated at elevated temperature removes the in uences of ambient relative humidity and temperature variations for accurate NO X measurements. The capability to simultaneously detect ultra-low NO X concentrations and small temperature changes paves the way for the development of future multimodal electronic devices with decoupled sensing mechanisms for health monitoring and precision agriculture.

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A laser-scribed wearable strain sensing system powered by an integrated rechargeable thin-film zinc-air battery for a long-time continuous healthcare monitoring

Cited by 50 publications

References 45 publications

Wearable Pressure Sensor Array with Layer-by-Layer Assembled MXene Nanosheets/Ag Nanoflowers for Motion Monitoring and Human–Machine Interfaces

Wearable Pressure Sensor Array with Layer-by-Layer Assembled MXene Nanosheets/Ag Nanoflowers for Motion Monitoring and Human–Machine Interfaces

Synergistic Bimetallic CoCu‐Codecorated Carbon Nanosheet Arrays as Integrated Bifunctional Cathodes for High‐Performance Rechargeable/Flexible Zinc‐Air Batteries

Vanadium Oxide‐Doped Laser‐Induced Graphene Multi‐Parameter Sensor to Decouple Soil Nitrogen Loss and Temperature

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