Enhanced Sensitivity of Patterned Graphene Strain Sensors Used for Monitoring Subtle Human Body Motions

Lee, Sang Woo; Park, Jung Jin; Park, Byung Hyun; Mun, Sung Cik; Park, Yong‐Tae; Liao, Kin; Seo, Tae Seok; Hyun, Woo Jin; Park, O Ok

doi:10.1021/acsami.7b01551

Cited by 83 publications

(58 citation statements)

References 36 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…b) Relative change of resistance of the respiratory during normal and exercise, respectively, measured by a graphene strain sensor attached to the chest. [171,174,175] A strain sensor based on graphene woven fabrics-PDMS-medical tape film possessed an extremely high gauge factor 10 6 under high strains (>7%) and 35 under small strain of 0.2%, which means that resistance change is very sensitive to tiny deformations. [171] Copyright 2014, Wiley-VCH.…”

Section: Human Movement Monitoringmentioning

confidence: 99%

Significance of Nanomaterials in Wearables: A Review on Wearable Actuators and Sensors

et al. 2018

View full text Add to dashboard Cite

Powered by market hype, trends among youth, and enormous funds, wearable technology has propelled itself as one of the most discussed topics in the field during past few years. A number of different companies representing all throughout the world have already entered into the market with hundreds of different products like smart watches, fitness trackers, smart garments, and even different smart medical attachments.Together with the evolution of digital health care, the wearable electronics field has evolved rapidly during the past few years and is expected to be expanded even further within the first few years of the next decade. As the next stage of wearables is predicted to move toward integrated wearables, nanomaterials and nanocomposites are in the spotlight of the search for novel concepts for integration. In addition, the conversion of current devices and attachment-based wearables into integrated technology may involve a significant size reduction while retaining their functional capabilities. Nanomaterialbased wearable sensors have already marked their presence with a significant distinction while nanomaterial-based wearable actuators are still at their embryonic stage. This review looks into the contribution of nanomaterials and nanocomposites to wearable technology with a focus on wearable sensors and actuators.

show abstract

Section: Human Movement Monitoringmentioning

confidence: 99%

Significance of Nanomaterials in Wearables: A Review on Wearable Actuators and Sensors

et al. 2018

View full text Add to dashboard Cite

show abstract

“…Strain sensor technology is playing a vital role in a wide range of applications, spanning from the detection of subtle and large human motions [1] [2], the reproduction of human skin sensory ability in robotics and health monitoring applications [3][4] [5][6] [7], and screening the reliability and durability of automotive, marine and aerospace structural systems [8] [9]. Conventional strain gauges, while able to provide rich information about the mechanical stress, are typically cumbersome, costly to install and maintain (particularly for large-scale structures), they often require complex signal processing schemes and their replacement can be difficult.…”

Section: Introductionmentioning

confidence: 99%

“…a shadow mask is required to fabricate the device). Alternatively, a layerby-layer assembly has been used [2], which requires several chemical processing steps and has limited design flexibility. Self-assembly [28] requires transfer of the film from the liquid to the flexible substrate.…”

Section: Introductionmentioning

confidence: 99%

Inkjet printed 2D-crystal based strain gauges on paper

Casiraghi¹,

Macucci²,

Parvez³

et al. 2018

Carbon

108

View full text Add to dashboard Cite

We present an investigation of inkjet printed strain gauges based on two-dimensional (2D) materials. The technology leverages water-based and biocompatible inks to fabricate strain measurement devices on flexible substrates such as paper. We demonstrate that the device performance and sensitivity are strongly dependent on the printing parameter (i.e., dropspacing, number of printing passes, etc.). We show that values of the Gauge Factor up to 125 can be obtained, with large sensitivity (>20%) even when small strains (0.3%) are applied. Furthermore, we provide preliminary examples of heterostructure-based strain sensors, enabled by the inkjet printing technology.

show abstract

“…Different types of physiological information can be quantified from body movements or body fluids. High‐sensitivity wearable sensors have been used to continuously record pulse and heart rate to collect basic health information . The following subsections will critically assess the main progress in measuring these signals, which are roughly divided into pulse and heart rate, exercise, and temperature regulation.…”

Section: Promising Applications Of Smart Wearable Sensors In Health Mmentioning

confidence: 99%

Bio‐Multifunctional Smart Wearable Sensors for Medical Devices

Wang

Lou

Jiang

et al. 2019

Advanced Intelligent Systems

139

View full text Add to dashboard Cite

Advances in digital health care have driven innovations in high‐performance wearable and smart sensors. One requirement in this field is establishing healthy, secure, and reliable medical devices for precisely monitoring vital signs of the human body or the surrounding environment through flexible sensors with not only high‐sensing performance but also excellent biofunctionality. Smart wearable sensors with excellent biofunctionality furnish medical devices with various smart functions such as biocompatibility, biodegradability, and self‐healing, which have attracted widespread interest from device engineers and materials scientists. Herein, a comprehensive review of the latest progress concerning these smart wearable sensors is presented with a focus on bio‐multifunctional (biocompatible, biodegradable, and self‐healing) device designs. The medical applications of bio‐multifunctional smart wearable sensors are also briefly covered, and to conclude, a discussion of the challenges, opportunities, and future perspectives is provided.

show abstract

Enhanced Sensitivity of Patterned Graphene Strain Sensors Used for Monitoring Subtle Human Body Motions

Cited by 83 publications

References 36 publications

Significance of Nanomaterials in Wearables: A Review on Wearable Actuators and Sensors

Significance of Nanomaterials in Wearables: A Review on Wearable Actuators and Sensors

Inkjet printed 2D-crystal based strain gauges on paper

Bio‐Multifunctional Smart Wearable Sensors for Medical Devices

Contact Info

Product

Resources

About