Flexible ferroelectric wearable devices for medical applications

Tsikriteas, Zois Michail; Roscow, James; Bowen, Chris; Khanbareh, Hamideh

doi:10.1016/j.isci.2020.101987

Cited by 38 publications

(24 citation statements)

References 160 publications

(169 reference statements)

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“…This increase in wearables' adaptability has resulted in exploring freely and readily available renewable energy resources to meet the energy demand without carbon footprint [3,4]. Energy harvesting systems, such as ferroelectric, thermoelectric, triboelectric, and piezoelectric, harvest natural forms of energy, i.e., biomechanical, thermal, mechanical, and vibrational energies, to power the wearables, respectively [5][6][7].…”

Section: Introductionmentioning

confidence: 99%

“…A ferroelectric generator works on the principle of the direct piezoelectric effect and can be piezoelectric and pyroelectric at the same time. It uses spontaneous electric polarization, Materials 2022, 15, 4315 2 of 27 which can be actuated by a change in stress or temperature, resulting in the considerable potential to power a biosensing system [7]. A piezoelectric generator converts human biomechanical energy into electrical energy by using the piezoelectric effect and generates a voltage of up to 55 V when force is exerted by the human foot [5].…”

Section: Introductionmentioning

confidence: 99%

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Recent Advances in Materials for Wearable Thermoelectric Generators and Biosensing Devices

Sattar

Yeo

2022

Materials

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Recently, self-powered health monitoring systems using a wearable thermoelectric generator (WTEG) have been rapidly developed since no battery is needed for continuous signal monitoring, and there is no need to worry about battery leakage. However, the existing materials and devices have limitations in rigid form factors and small-scale manufacturing. Moreover, the conventional bulky WTEG is not compatible with soft and deformable tissues, including human skins or internal organs. These limitations restrict the WTEG from stabilizing the thermoelectric gradient that is necessary to harvest the maximum body heat and generate valuable electrical energy. This paper summarizes recent advances in soft, flexible materials and device designs to overcome the existing challenges. Specifically, we discuss various organic and inorganic thermoelectric materials with their properties for manufacturing flexible devices. In addition, this review discusses energy budgets required for effective integration of WTEGs with wearable biomedical systems, which is the main contribution of this article compared to previous articles. Lastly, the key challenges of the existing WTEGs are discussed, followed by describing future perspectives for self-powered health monitoring systems.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Recent Advances in Materials for Wearable Thermoelectric Generators and Biosensing Devices

Sattar

Yeo

2022

Materials

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“…While there are a number of excellent reviews on soft robots, [ 1–6 ] soft electronic‐skins, [ 7–9 ] flexible wearable devices, [ 10–12 ] rehabilitation and assistive exoskeletons, [ 13–16 ] soft systems in health care, [ 17–20 ] and soft textile Exosuits, [ 21 ] there is currently no review that has a focus on soft actuators and robotic devices specifically developed for soft rehabilitation and assistance. The aim of this review is to investigate the current state‐of‐the‐art technologies in this area to demonstrate the nexus between materials, mechanisms, actuation, and applications.…”

Section: Introductionmentioning

confidence: 99%

“…Finally, insights into future research directions are outlined. systems in health care, [17][18][19][20] and soft textile Exosuits, [21] there is currently no review that has a focus on soft actuators and robotic devices specifically developed for soft rehabilitation and assistance. The aim of this review is to investigate the current state-of-the-art technologies in this area to demonstrate the nexus between materials, mechanisms, actuation, and applications.…”

Section: Introductionmentioning

confidence: 99%

Soft Actuators and Robotic Devices for Rehabilitation and Assistance

Pan¹,

Yuan

Liang

et al. 2021

Advanced Intelligent Systems

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Soft actuators and robotic devices have been increasingly applied to the field of rehabilitation and assistance, where safe human and machine interaction is of particular importance. Compared with their widely used rigid counterparts, soft actuators and robotic devices can provide a range of significant advantages; these include safe interaction, a range of complex motions, ease of fabrication, and resilience to a variety of environments. In recent decades, significant effort has been invested in the development of soft rehabilitation and assistive devices for improving a range of medical treatments and quality of life. This review provides an overview of the current state‐of‐the‐art in soft actuators and robotic devices for rehabilitation and assistance, in particular systems that achieve actuation by pneumatic and hydraulic fluid‐power, electrical motors, chemical reactions, and soft active materials such as dielectric elastomers, shape memory alloys, magnetoactive elastomers, liquid crystal elastomers, and piezoelectric materials. Current research on soft rehabilitation and assistive devices is in its infancy, and new device designs and control strategies for improved performance and safe human–machine interaction are identified as particularly untapped areas of research. Finally, insights into future research directions are outlined.

show abstract

“…While there are a number of excellent reviews on soft robots [1][2][3][4][5][6], soft electronic-skins [7][8][9], flexible wearable devices [10][11][12], rehabilitation and assistive exoskeletons [13][14][15][16], soft systems in health care [17][18][19][20] and soft textile Exosuits [21], there is currently no review that has a focus on soft actuators and robotic devices specifically developed for soft rehabilitation and assistance. The aim of this review is to investigate the current state-of-the-art technologies in this area to demonstrate the nexus between materials, mechanisms, actuation, and applications.…”

Section: Introductionmentioning

confidence: 99%

Soft Actuators and Robotic Devices for Rehabilitation and Assistance

Pan

Yuan²,

Liang³

et al. 2021

Preprint

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Soft actuators and robotic devices have been increasingly applied to the field of rehabilitation and assistance, where safe human and machine interaction is of particular importance. Compared with their widely used rigid counterparts, soft actuators and robotic devices can provide a range of significant advantages; these include safe interaction, a range of complex motions, ease of fabrication and resilience to a variety of environments. In recent decades, significant effort has been invested in the development of soft rehabilitation and assistive devices for improving a range of medical treatments and quality of life. This review provides an overview of the current state-of-the-art in soft actuators and robotic devices for rehabilitation and assistance, in particular systems that achieve actuation by pneumatic and hydraulic fluid-power, electrical motors, chemical reactions and soft active materials such as dielectric elastomers, shape memory alloys, magnetoactive elastomers, liquid crystal elastomers and piezoelectric materials. Current research on soft rehabilitation and assistive devices is in its infancy, and new device designs and control strategies for improved performance and safe human-machine interaction are identified as particularly untapped areas of research. Finally, insights into future research directions are outlined. Corresponding author(s) Email: mp351@bath.ac.uk, liutao@zju.edu.cn

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Flexible ferroelectric wearable devices for medical applications

Cited by 38 publications

References 160 publications

Recent Advances in Materials for Wearable Thermoelectric Generators and Biosensing Devices

Recent Advances in Materials for Wearable Thermoelectric Generators and Biosensing Devices

Soft Actuators and Robotic Devices for Rehabilitation and Assistance

Soft Actuators and Robotic Devices for Rehabilitation and Assistance

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