Wearable triboelectric sensors for biomedical monitoring and human-machine interface

Pu, Xianjie; An, Shanshan; Tang, Qian; Guo, Hengyu; Hu, Chenguo

doi:10.1016/j.isci.2020.102027

Cited by 162 publications

(99 citation statements)

References 132 publications

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“…A large number of implantable and wearable TENG‐based sensors have been reported for monitoring cardiac, pulse and respiration activities, as well as joint and muscle movement. [ 19 ] Moreover, the monitoring signal can be wirelessly transmitted and big data can be established to judge whether various physiological indicators are normal, which is of great significance for the diagnosis of many diseases. Thus, a closed‐loop drug‐delivery system is expected to be realized by combining real‐time disease diagnosis and on‐demand drug delivery.…”

Section: Discussionmentioning

confidence: 99%

Self‐Powered Drug‐Delivery Systems Based on Triboelectric Nanogenerator

Liu

2021

Adv Energy and Sustain Res

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Triboelectric nanogenerator (TENG) can convert mechanical energy into electricity via the coupling of triboelectrification and electrostatic induction. Due to its advantages of flexible, lightweight, high‐energy conversion efficiency and shape‐adaptive ability, implantable and wearable TENG have shown great potentials in biomedical field for biomechanical energy harvesting, biosensing, and therapy. In this Perspective, recent advances of TENG for self‐powered drug delivery, mainly including controlled drug release as well as drug delivery based on electroporation and iontophoresis are systematically overviewed. Also the significance of self‐powered drug‐delivery system in personalized healthcare is emphasized, and conclude with the open challenges and future perspectives of TENG‐based drug‐delivery systems.

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Section: Discussionmentioning

confidence: 99%

Self‐Powered Drug‐Delivery Systems Based on Triboelectric Nanogenerator

Liu

2021

Adv Energy and Sustain Res

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“…[ 3 , 4 , 5 , 6 ] Nonetheless, the development of a multifunctional, intelligent, and integrated e‐skin remains a key challenge. [ 7 , 8 , 9 , 10 ] However, mimicking biological structures (such as human skin, bird feathers, and plant leaves) may aid in the development of materials with excellent performance. [ 11 , 12 ] For the practical applications of an e‐skin material, the sensitivity, self‐power capability, biocompatibility, breathability, flexibility, lightness, and cost effectiveness are needed to be assessed and tailored simultaneously.…”

Section: Introductionmentioning

confidence: 99%

Spider‐Web and Ant‐Tentacle Doubly Bio‐Inspired Multifunctional Self‐Powered Electronic Skin with Hierarchical Nanostructure

et al. 2021

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For the practical applications of wearable electronic skin (e‐skin), the multifunctional, self‐powered, biodegradable, biocompatible, and breathable materials are needed to be assessed and tailored simultaneously. Integration of these features in flexible e‐skin is highly desirable; however, it is challenging to construct an e‐skin to meet the requirements of practical applications. Herein, a bio‐inspired multifunctional e‐skin with a multilayer nanostructure based on spider web and ant tentacle is constructed, which can collect biological energy through a triboelectric nanogenerator for the simultaneous detection of pressure, humidity, and temperature. Owing to the poly(vinyl alcohol)/poly(vinylidene fluoride) nanofibers spider web structure, internal bead‐chain structure, and the collagen aggregate nanofibers based positive friction material, e‐skin exhibits the highest pressure sensitivity (0.48 V kPa−1) and high detection range (0–135 kPa). Synchronously, the nanofibers imitating the antennae of ants provide e‐skin with short response and recovery time (16 and 25 s, respectively) to a wide humidity range (25–85% RH). The e‐skin is demonstrated to exhibit temperature coefficient of resistance (TCR = 0.0075 °C−1) in a range of the surrounding temperature (27–55 °C). Moreover, the natural collagen aggregate and the all‐nanofibers structure ensure the biodegradability, biocompatibility, and breathability of the e‐skin, showing great promise for practicability.

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“…Wearable electronics have experienced blooming development and advancement in the past few years, [ 1 , 2 , 3 ] offering diversified functionalities ranging from physical sensing [ 4 , 5 ] to chemical sensing [ 6 , 7 ] for various applications, such as healthcare monitoring, [ 8 , 9 , 10 ] rehabilitation, [ 11 , 12 ] disease diagnosis/treatment, [ 13 , 14 , 15 ] and sports instruction/training. [ 16 , 17 ] For instance, various wearable sensors attached to the skin or worn on the body have been developed for gait and posture monitoring, [ 18 , 19 , 20 ] which have emerged as promising candidates for stroke or Parkinson's disease (PD) monitoring.…”

Section: Introductionmentioning

confidence: 99%

A Motion Capturing and Energy Harvesting Hybridized Lower‐Limb System for Rehabilitation and Sports Applications

Gao

Zhang

et al. 2021

Advanced Science

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Lower-limb motion monitoring is highly desired in various application scenarios ranging from rehabilitation to sports training. However, there still lacks a cost-effective, energy-saving, and computational complexity-reducing solution for this specific demand. Here, a motion capturing and energy harvesting hybridized lower-limb (MC-EH-HL) system with 3D printing is demonstrated. It enables low-frequency biomechanical energy harvesting with a sliding block-rail piezoelectric generator (S-PEG) and lower-limb motion sensing with a ratchet-based triboelectric nanogenerator (R-TENG). A unique S-PEG is proposed with particularly designed mechanical structures to convert lower-limb 3D motion into 1D linear sliding on the rail. On the one hand, high output power is achieved with the S-PEG working at a very low frequency, which realizes self-sustainable systems for wireless sensing under the Internet of Things framework. On the other hand, the R-TENG gives rise to digitalized triboelectric output, matching the rotation angles to the pulse numbers. Additional physical parameters can be estimated to enrich the sensory dimension. Accordingly, demonstrative rehabilitation, human-machine interfacing in virtual reality, and sports monitoring are presented. This developed hybridized system exhibits an economic and energy-efficient solution to support the need for lower-limb motion tracking in various scenarios, paving the way for self-sustainable multidimensional motion tracking systems in near future.

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Wearable triboelectric sensors for biomedical monitoring and human-machine interface

Cited by 162 publications

References 132 publications

Self‐Powered Drug‐Delivery Systems Based on Triboelectric Nanogenerator

Self‐Powered Drug‐Delivery Systems Based on Triboelectric Nanogenerator

Spider‐Web and Ant‐Tentacle Doubly Bio‐Inspired Multifunctional Self‐Powered Electronic Skin with Hierarchical Nanostructure

A Motion Capturing and Energy Harvesting Hybridized Lower‐Limb System for Rehabilitation and Sports Applications

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