Recent Advances in Touch Sensors for Flexible Wearable Devices

Many modern user interfaces are based on touch, and such sensors are widely used in displays, Internet of Things (IoT) projects, and robotics. From lamps to touchscreens of smartphones, these user interfaces can be found in an array of applications. However, traditional touch sensors are bulky, comp...

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Main Authors: Abdul Hakeem Anwer, Nishat Khan, Mohd Zahid Ansari, Sang-Soo Baek, Hoon Yi, Soeun Kim, Seung Man Noh, Changyoon Jeong
Format: Article
Language:English
Published: MDPI AG 2022-06-01
Series:Sensors
Subjects:
Online Access:https://www.mdpi.com/1424-8220/22/12/4460
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author Abdul Hakeem Anwer
Nishat Khan
Mohd Zahid Ansari
Sang-Soo Baek
Hoon Yi
Soeun Kim
Seung Man Noh
Changyoon Jeong
author_facet Abdul Hakeem Anwer
Nishat Khan
Mohd Zahid Ansari
Sang-Soo Baek
Hoon Yi
Soeun Kim
Seung Man Noh
Changyoon Jeong
author_sort Abdul Hakeem Anwer
collection DOAJ
description Many modern user interfaces are based on touch, and such sensors are widely used in displays, Internet of Things (IoT) projects, and robotics. From lamps to touchscreens of smartphones, these user interfaces can be found in an array of applications. However, traditional touch sensors are bulky, complicated, inflexible, and difficult-to-wear devices made of stiff materials. The touch screen is gaining further importance with the trend of current IoT technology flexibly and comfortably used on the skin or clothing to affect different aspects of human life. This review presents an updated overview of the recent advances in this area. Exciting advances in various aspects of touch sensing are discussed, with particular focus on materials, manufacturing, enhancements, and applications of flexible wearable sensors. This review further elaborates on the theoretical principles of various types of touch sensors, including resistive, piezoelectric, and capacitive sensors. The traditional and novel hybrid materials and manufacturing technologies of flexible sensors are considered. This review highlights the multidisciplinary applications of flexible touch sensors, such as e-textiles, e-skins, e-control, and e-healthcare. Finally, the obstacles and prospects for future research that are critical to the broader development and adoption of the technology are surveyed.
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spelling doaj.art-c0c9486fa9f44519a9b9991e3199c98e2023-11-23T18:53:48ZengMDPI AGSensors1424-82202022-06-012212446010.3390/s22124460Recent Advances in Touch Sensors for Flexible Wearable DevicesAbdul Hakeem Anwer0Nishat Khan1Mohd Zahid Ansari2Sang-Soo Baek3Hoon Yi4Soeun Kim5Seung Man Noh6Changyoon Jeong7School of Mechanical Engineering, Yeungnam University, 280 Daehak-Ro, Gyeongsan 38541, KoreaIndustrial Chemistry Research Laboratory, Department of Chemistry, Faculty of Sciences, Aligarh Muslim University, Aligarh 202 002, IndiaSchool of Materials Science and Engineering, Yeungnam University, 280 Daehak-Ro, Gyeongsan 38541, KoreaDepartment of Environmental Engineering, Yeungnam University, Gyeongsan 38541, KoreaMechanical Technology Group, Global Manufacturing Center, Samsung Electro-Mechanics Co., 150 Maeyeong-ro, Yeongtong-gu, Suwon 16674, KoreaResearch Center for Green Fine Chemicals, Korea Research Institute of Chemical Technology, Ulsan 44412, KoreaResearch Center for Green Fine Chemicals, Korea Research Institute of Chemical Technology, Ulsan 44412, KoreaSchool of Mechanical Engineering, Yeungnam University, 280 Daehak-Ro, Gyeongsan 38541, KoreaMany modern user interfaces are based on touch, and such sensors are widely used in displays, Internet of Things (IoT) projects, and robotics. From lamps to touchscreens of smartphones, these user interfaces can be found in an array of applications. However, traditional touch sensors are bulky, complicated, inflexible, and difficult-to-wear devices made of stiff materials. The touch screen is gaining further importance with the trend of current IoT technology flexibly and comfortably used on the skin or clothing to affect different aspects of human life. This review presents an updated overview of the recent advances in this area. Exciting advances in various aspects of touch sensing are discussed, with particular focus on materials, manufacturing, enhancements, and applications of flexible wearable sensors. This review further elaborates on the theoretical principles of various types of touch sensors, including resistive, piezoelectric, and capacitive sensors. The traditional and novel hybrid materials and manufacturing technologies of flexible sensors are considered. This review highlights the multidisciplinary applications of flexible touch sensors, such as e-textiles, e-skins, e-control, and e-healthcare. Finally, the obstacles and prospects for future research that are critical to the broader development and adoption of the technology are surveyed.https://www.mdpi.com/1424-8220/22/12/4460flexible sensorwearable devicestouch sensornanocompositeresistive touch sensorpiezoelectric touch sensor
spellingShingle Abdul Hakeem Anwer
Nishat Khan
Mohd Zahid Ansari
Sang-Soo Baek
Hoon Yi
Soeun Kim
Seung Man Noh
Changyoon Jeong
Recent Advances in Touch Sensors for Flexible Wearable Devices
Sensors
flexible sensor
wearable devices
touch sensor
nanocomposite
resistive touch sensor
piezoelectric touch sensor
title Recent Advances in Touch Sensors for Flexible Wearable Devices
title_full Recent Advances in Touch Sensors for Flexible Wearable Devices
title_fullStr Recent Advances in Touch Sensors for Flexible Wearable Devices
title_full_unstemmed Recent Advances in Touch Sensors for Flexible Wearable Devices
title_short Recent Advances in Touch Sensors for Flexible Wearable Devices
title_sort recent advances in touch sensors for flexible wearable devices
topic flexible sensor
wearable devices
touch sensor
nanocomposite
resistive touch sensor
piezoelectric touch sensor
url https://www.mdpi.com/1424-8220/22/12/4460
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