Polymer-based flexible bioelectronics

Wu, Xiaoying; Peng, Huisheng

doi:10.1016/j.scib.2019.04.011

Cited by 55 publications

(38 citation statements)

References 51 publications

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“…3b and Table S1, the following can be deduced. (1) At a high stretchability of 100%, the GF of the Au/s-PPy/ PDMS strain sensor is >10 6 higher than the best value reported in literature. In addition, the detection limit (0.1%) obtained herein is lower than the value (0.2%) reported in literature [31].…”

Section: Science China Materialsmentioning

confidence: 80%

“…Stretchable strain sensors have been attracting considerable attention owing to their diverse applications in the fields such as electronic skins [1][2][3][4][5][6][7][8], robotics [9][10][11][12][13], and wearable electronics [14][15][16][17][18][19][20][21][22][23]. To achieve high-efficiency monitoring of human activities (breath motion <1%, joint motions >55%), wearable strain sensors need to be developed with a high sensitivity, large stretchability, and a low detection limit.…”

Section: Introductionmentioning

confidence: 99%

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Eggshell-inspired membrane—shell strategy for simultaneously improving the sensitivity and detection range of strain sensors

Tan

Yuan

et al. 2020

Sci. China Mater.

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The tradeoff between sensitivity and detection range (maximum and minimum stretchability) is a key limitation in strain sensors; to resolve this, we develop an efficient and novel strategy herein to fabricate a highly sensitive and stretchable strain sensor inspired by the membrane-shell structure of poultry eggs. The developed sensor comprises a soft and stretchable surface-grafting polypyrrole (s-PPy) film (acting as the membrane) and a brittle Au film (acting as the shell), wherein both films complement each other at the electrical and mechanical levels. Au forms cracks under strain contributing to its high sensitivity and low detection limit, and s-PPy can bridge Au cracks and increase stretchability which has not been used in strain sensors before. The surfacegrafting strategy not only enhances interface adhesion but also tunes the brittle property of native PPy to render it stretchable. Utilizing the synergetic effect of the membrane-shell complementary structure, the strain sensors achieve ultrahigh sensitivity (>10 7), large stretchability (100%), and an ultralow detection limit (0.1%), demonstrating significant progress in the field of strain sensors. The membrane-shell (Au/s-PPy)structured strain sensor can successfully detect finger motion, wrist rotation, airflow fluctuation, and voice vibration; these movements produce strain in the range of subtle to marked deformations. Results evidence the ultrahigh performance and bright application prospects of the developed strain sensors.

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Section: Science China Materialsmentioning

confidence: 80%

Section: Introductionmentioning

confidence: 99%

Eggshell-inspired membrane—shell strategy for simultaneously improving the sensitivity and detection range of strain sensors

Tan

Yuan

et al. 2020

Sci. China Mater.

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“…Supercapacitors are employed to directly supply power to sensors that require only a small amount of energy. [197] Park et al [122] reported stretchable high-performance supercapacitors that were used to power sensors in an integrated textile system to detect various biological signals. Supercapacitors assembled using the MWCNTs/MoO 3 nanocomposite electrode and nonaqueous gel electrolyte exhibited stable and excellent electrochemical performance under both dynamic and static deformation along the movement direction of the fabric.…”

Section: Multifunctional Stretchable Supercapacitorsmentioning

confidence: 99%

“…Supercapacitors are employed to directly supply power to sensors that require only a small amount of energy. [ 197 ] Park et al. [ 122 ] reported stretchable high‐performance supercapacitors that were used to power sensors in an integrated textile system to detect various biological signals.…”

Section: Multifunctional Stretchable Supercapacitorsmentioning

confidence: 99%

Stretchable Supercapacitors: From Materials and Structures to Devices

Shao

Chen

et al. 2020

Small Methods

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Stretchable supercapacitors have received widespread attention due to their potential applications in wearable electronics and health monitoring. Stretchable supercapacitors not only possess advantages such as high power density, long cycle life, safety, and low cost of conventional supercapacitors but also have excellent flexibility and stretchability, which make them well integrated with other wearable systems. In this review, various strategies to fabricate stretchable supercapacitors are focused. The preparation methods for stretchable electrodes/devices in the literature are carefully classified and analyzed. Three strategies for preparing stretchable electrodes/devices are summarized in detail—the design of elastic polymer substrates, stretchable electrode structures, and composite electrodes combined with elastic polymers and stretchable structures. Meanwhile, the interface problem of electrodes/devices in the stretching process is studied in depth. The research progress of multifunctional stretchable supercapacitors is also introduced. Finally, challenges and possible solutions that still need to be addressed in the future development of stretchable supercapacitors are highlighted and prospected. This review comprehensively discusses the latest research progress in the field of stretchable supercapacitors and systematically elucidates the electrochemical and mechanical properties of these devices, hoping to improve the roadmap for scientists and engineers to develop supercapacitors with high electrochemical performance and good stretchability.

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“…Electronic textiles have undergone a great boost in the past decade, from power sources to sensors and to displays, which may produce the long‐cherished soft electronics to revolutionize a variety of application fields, such as information technology, internet, artificial intelligence, and personal healthcare . The core of electronic textiles is to replace the building block of traditional polymer fibers with electronic fibers and then integrate the electronic fibers into textiles by the scalable weaving process .…”

Section: Figurementioning

confidence: 99%

Robust DNA‐Bridged Memristor for Textile Chips

Zhou

Wang

et al. 2020

Angewandte Chemie

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Electronic textiles may revolutionize many fields, such as communication, health care and artificial intelligence. To date, unfortunately, computing with them is not yet possible. Memristors are compatible with the interwoven structure and manufacturing process in textiles because of its two‐terminal crossbar configuration. However, it remains a challenge to realize textile memristors owing to the difficulties in designing advanced memristive materials and achieving high‐quality active layers on fiber electrodes. Herein we report a robust textile memristor based on an electrophoretic‐deposited active layer of deoxyribonucleic acid (DNA) on fiber electrodes. The unique architecture and orientation of DNA molecules with the incorporation of Ag nanoparticles offer the best‐in‐class performances, e.g., both ultra‐low operation voltage of 0.3 V and power consumption of 100 pW and high switching speed of 20 ns. Fundamental logic calculations such as implication and NAND are demonstrated as functions of textile chips, and it has been thus integrated with power‐supplying and light emitting modules to demonstrate an all‐fabric information processing system.

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Polymer-based flexible bioelectronics

Cited by 55 publications

References 51 publications

Eggshell-inspired membrane—shell strategy for simultaneously improving the sensitivity and detection range of strain sensors

Eggshell-inspired membrane—shell strategy for simultaneously improving the sensitivity and detection range of strain sensors

Stretchable Supercapacitors: From Materials and Structures to Devices

Robust DNA‐Bridged Memristor for Textile Chips

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