Advances in triboelectric nanogenerators for biomedical sensing

Tat, Trinny; Libanori, Alberto; Au, Christian; Yau, Andy; Chen, Jun

doi:10.1016/j.bios.2020.112714

Cited by 182 publications

(108 citation statements)

References 253 publications

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“…[ 4,5 ] In this respect, tremendous research efforts have been devoted to fabricating wearable biosensors in the textile forms, such as textile triboelectric nanogenerators, textile piezoelectric sensors, textile resistive sensors, textile capacitive sensors, and many others for vital signal monitoring owing to their excellent wearability and durability. [ 2,6–8 ] Particularly, numerous attempts have been afforded to explore piezoelectricity‐based textile wearable sensors, benefiting from their self‐powered property, simple structure design, light weight, cost‐effectiveness, miniaturization, and the feasibility of being blended with textiles. Piezoelectric textile sensors could convert body motions, such as pulse wave, respiration, vocal cords vibration, and limb movements, into electrical signals, providing reliable, continuous, and precise physiological information for personalized healthcare.…”

Section: Introductionmentioning

confidence: 99%

Muscle Fibers Inspired High‐Performance Piezoelectric Textiles for Wearable Physiological Monitoring

Chen

Pan

et al. 2021

Adv Funct Materials

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151

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The next‐generation wearable biosensors with highly biocompatible, stretchable, and robust features are expected to enable the change of the current reactive and disease‐centric healthcare system to a personalized model with a focus on disease prevention and health promotion. Herein, a muscle‐fiber‐inspired nonwoven piezoelectric textile with tunable mechanical properties for wearable physiological monitoring is developed. To mimic the muscle fibers, polydopamine (PDA) is dispersed into the electrospun barium titanate/polyvinylidene fluoride (BTO/PVDF) nanofibers to enhance the interfacial‐adhesion, mechanical strength, and piezoelectric properties. Such improvements are both experimentally observed via mechanical characterization and theoretically verified by the phase‐field simulation. Taking the PDA@BTO/PVDF nanofibers as the building blocks, a nonwoven light‐weight piezoelectric textile is fabricated, which hold an outstanding sensitivity (3.95 V N−1) and long‐term stability (<3% decline after 7,400 cycles). The piezoelectric textile demonstrates multiple potential applications, including pulse wave measurement, human motion monitoring, and active voice recognition. By creatively mimicking the muscle fibers, this work paves a cost‐effective way to develop high‐performance and self‐powered wearable bioelectronics for personalized healthcare.

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Section: Introductionmentioning

confidence: 99%

Muscle Fibers Inspired High‐Performance Piezoelectric Textiles for Wearable Physiological Monitoring

Chen

Pan

et al. 2021

Adv Funct Materials

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208

151

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“…Developing wearable biochemical sensors to realize the direct detection of disease markers that can reflect the physiological state of the patient remains a research challenge and focus. [ 147 ] 2) Furthermore, implantable and biocompatible TENGs that can work on an organ's surface, [ 148 ] in a heart chamber, [ 149,150 ] and in the subcutaneous region [ 151 ] can enable the realization of in vivo energy harvesting and healthcare monitoring (Figure 10b). 3) In addition, some 2D materials have attractive application prospects in optimizing the TENGs’ sensitivity to biological analytes owing to their favorable surface properties and triboelectric series.…”

Section: Discussionmentioning

confidence: 99%

Triboelectric Nanogenerator‐Based Sensor Systems for Chemical or Biological Detection

et al. 2021

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The rapid advances in the Internet of things and wearable devices have created a massive platform for sensor systems that detect chemical or biological agents. The accelerated development of these devices in recent years has simultaneously aggravated the power supply problems. Triboelectric nanogenerators (TENGs) represent a thriving renewable energy technology with the potential to revolutionize this field. In this review, the significance of TENG‐based sensor systems in chemical or biological detection from the perspective of the development of power supply for biochemical sensors is discussed. Further, a range of TENGs are classified according to their roles as power supplies and/or self‐powered active sensors. The TENG powered sensor systems are further discussed on the basis of their framework and applications. The working principles and structures of different TENG‐based self‐powered active sensors are presented, along with the classification of the sensors based on these factors. In addition, some representative applications are introduced, and the corresponding challenges are discussed. Finally, some perspectives for the future innovations of TENG‐based sensor systems for chemical/biological detection are discussed.

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“…[ 1,2 ] Compared with blood analysis and endoscopy, respiration analysis is a fast, non‐invasive, painless, low‐cost, and convenient approach for early illness diagnosis and real‐time physiological monitoring. [ 3–5 ] Assessment of the diaphragmatic movement during breathing (dash line, Figure ) can provide the early recognition of human diseases like abnormalities apnea, asthma, cardiac arrest, and lung cancer. [ 6,7 ] Furthermore, the obstructive sleep apnea syndrome (SAS), arising from the collapse of the soft tissues at upper respiratory tract, poses a huge hazard in human health and safety and the potential causes for various diseases, such as diabetes, hypertension, stroke and even nocturnal death.…”

Section: Introductionmentioning

confidence: 99%

Self‐Powered Respiration Monitoring Enabled By a Triboelectric Nanogenerator

et al. 2021

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In mammals, physiological respiration involves respiratory cycles of inhaled and exhaled breaths, which has traditionally been an underutilized resource potentially encompassing a wealth of physiologically relevant information as well as clues to potential diseases. Recently, triboelectric nanogenerators (TENGs) have been widely adopted for self‐powered respiration monitoring owing to their compelling features, such as decent biocompatibility, wearing comfort, low‐cost, and high sensitivity to respiration activities in the aspect of low frequency and slight amplitude body motions. Physiological respiration behaviors and exhaled chemical regents can be precisely and continuously monitored by TENG‐based respiration sensors for personalized health care. This article presents an overview of TENG enabled self‐powered respiration monitoring, with a focus on the working principle, sensing materials, functional structures, and related applications in both physical respiration motion detection and chemical breath analysis. Concepts and approaches for acquisition of physical information associated with respiratory rate and depth are covered in the first part. Then the sensing mechanism, theoretical modeling, and applications related to detection of chemicals released from breathing gases are systemically summarized. Finally, the opportunities and challenges of triboelectric effect enabled self‐powered respiration monitoring are comprehensively discussed and criticized.

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Advances in triboelectric nanogenerators for biomedical sensing

Cited by 182 publications

References 253 publications

Muscle Fibers Inspired High‐Performance Piezoelectric Textiles for Wearable Physiological Monitoring

Muscle Fibers Inspired High‐Performance Piezoelectric Textiles for Wearable Physiological Monitoring

Triboelectric Nanogenerator‐Based Sensor Systems for Chemical or Biological Detection

Self‐Powered Respiration Monitoring Enabled By a Triboelectric Nanogenerator

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