A Chest‐Laminated Ultrathin and Stretchable E‐Tattoo for the Measurement of Electrocardiogram, Seismocardiogram, and Cardiac Time Intervals
Abstract Seismocardiography (SCG) is a measure of chest vibration associated with heartbeats. While skin soft electronic tattoos (e‐tattoos) have been widely reported for electrocardiogram (ECG) sensing, wearable SCG sensors are still based on either rigid accelerometers or non‐stretchable piezoelec...
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Wiley
2019-07-01
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Series: | Advanced Science |
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Online Access: | https://doi.org/10.1002/advs.201900290 |
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author | Taewoo Ha Jason Tran Siyi Liu Hongwoo Jang Hyoyoung Jeong Ruchika Mitbander Heeyong Huh Yitao Qiu Jason Duong Rebecca L. Wang Pulin Wang Animesh Tandon Jayant Sirohi Nanshu Lu |
author_facet | Taewoo Ha Jason Tran Siyi Liu Hongwoo Jang Hyoyoung Jeong Ruchika Mitbander Heeyong Huh Yitao Qiu Jason Duong Rebecca L. Wang Pulin Wang Animesh Tandon Jayant Sirohi Nanshu Lu |
author_sort | Taewoo Ha |
collection | DOAJ |
description | Abstract Seismocardiography (SCG) is a measure of chest vibration associated with heartbeats. While skin soft electronic tattoos (e‐tattoos) have been widely reported for electrocardiogram (ECG) sensing, wearable SCG sensors are still based on either rigid accelerometers or non‐stretchable piezoelectric membranes. This work reports an ultrathin and stretchable SCG sensing e‐tattoo based on the filamentary serpentine mesh of 28‐µm‐thick piezoelectric polymer, polyvinylidene fluoride (PVDF). 3D digital image correlation (DIC) is used to map chest vibration to identify the best location to mount the e‐tattoo and to investigate the effects of substrate stiffness. As piezoelectric sensors easily suffer from motion artifacts, motion artifacts are effectively reduced by performing subtraction between a pair of identical SCG tattoos placed adjacent to each other. Integrating the soft SCG sensor with a pair of soft gold electrodes on a single e‐tattoo platform forms a soft electro‐mechano‐acoustic cardiovascular (EMAC) sensing tattoo, which can perform synchronous ECG and SCG measurements and extract various cardiac time intervals including systolic time interval (STI). Using the EMAC tattoo, strong correlations between STI and the systolic/diastolic blood pressures, are found, which may provide a simple way to estimate blood pressure continuously and noninvasively using one chest‐mounted e‐tattoo. |
first_indexed | 2024-04-12T00:55:11Z |
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institution | Directory Open Access Journal |
issn | 2198-3844 |
language | English |
last_indexed | 2024-04-12T00:55:11Z |
publishDate | 2019-07-01 |
publisher | Wiley |
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series | Advanced Science |
spelling | doaj.art-dbf4be57eec34597b37a62e647c102a52022-12-22T03:54:38ZengWileyAdvanced Science2198-38442019-07-01614n/an/a10.1002/advs.201900290A Chest‐Laminated Ultrathin and Stretchable E‐Tattoo for the Measurement of Electrocardiogram, Seismocardiogram, and Cardiac Time IntervalsTaewoo Ha0Jason Tran1Siyi Liu2Hongwoo Jang3Hyoyoung Jeong4Ruchika Mitbander5Heeyong Huh6Yitao Qiu7Jason Duong8Rebecca L. Wang9Pulin Wang10Animesh Tandon11Jayant Sirohi12Nanshu Lu13Department of Electrical and Computer Engineering University of Texas at Austin TX 78712 USADepartment of Aerospace Engineering and Engineering Mechanics University of Texas at Austin TX 78712 USADepartment of Aerospace Engineering and Engineering Mechanics University of Texas at Austin TX 78712 USATexas Materials Institute University of Texas at Austin TX 78712 USADepartment of Electrical and Computer Engineering University of Texas at Austin TX 78712 USADepartment of Biomedical Engineering University of Texas at Austin TX 78712 USADepartment of Mechanical Engineering University of Texas at Austin TX 78712 USADepartment of Aerospace Engineering and Engineering Mechanics University of Texas at Austin TX 78712 USADepartment of Biomedical Engineering University of Texas at Austin TX 78712 USADepartment of Aerospace Engineering and Engineering Mechanics University of Texas at Austin TX 78712 USADepartment of Aerospace Engineering and Engineering Mechanics University of Texas at Austin TX 78712 USADepartments of Pediatrics, Radiology, and Biomedical Engineering Division of Cardiology University of Texas Southwestern Medical School Children's Medical Center Dallas TX 75235 USADepartment of Aerospace Engineering and Engineering Mechanics University of Texas at Austin TX 78712 USADepartment of Electrical and Computer Engineering University of Texas at Austin TX 78712 USAAbstract Seismocardiography (SCG) is a measure of chest vibration associated with heartbeats. While skin soft electronic tattoos (e‐tattoos) have been widely reported for electrocardiogram (ECG) sensing, wearable SCG sensors are still based on either rigid accelerometers or non‐stretchable piezoelectric membranes. This work reports an ultrathin and stretchable SCG sensing e‐tattoo based on the filamentary serpentine mesh of 28‐µm‐thick piezoelectric polymer, polyvinylidene fluoride (PVDF). 3D digital image correlation (DIC) is used to map chest vibration to identify the best location to mount the e‐tattoo and to investigate the effects of substrate stiffness. As piezoelectric sensors easily suffer from motion artifacts, motion artifacts are effectively reduced by performing subtraction between a pair of identical SCG tattoos placed adjacent to each other. Integrating the soft SCG sensor with a pair of soft gold electrodes on a single e‐tattoo platform forms a soft electro‐mechano‐acoustic cardiovascular (EMAC) sensing tattoo, which can perform synchronous ECG and SCG measurements and extract various cardiac time intervals including systolic time interval (STI). Using the EMAC tattoo, strong correlations between STI and the systolic/diastolic blood pressures, are found, which may provide a simple way to estimate blood pressure continuously and noninvasively using one chest‐mounted e‐tattoo.https://doi.org/10.1002/advs.201900290blood pressurecardiac time intervalsdigital image correlationepidermal electronicse‐tattoos |
spellingShingle | Taewoo Ha Jason Tran Siyi Liu Hongwoo Jang Hyoyoung Jeong Ruchika Mitbander Heeyong Huh Yitao Qiu Jason Duong Rebecca L. Wang Pulin Wang Animesh Tandon Jayant Sirohi Nanshu Lu A Chest‐Laminated Ultrathin and Stretchable E‐Tattoo for the Measurement of Electrocardiogram, Seismocardiogram, and Cardiac Time Intervals Advanced Science blood pressure cardiac time intervals digital image correlation epidermal electronics e‐tattoos |
title | A Chest‐Laminated Ultrathin and Stretchable E‐Tattoo for the Measurement of Electrocardiogram, Seismocardiogram, and Cardiac Time Intervals |
title_full | A Chest‐Laminated Ultrathin and Stretchable E‐Tattoo for the Measurement of Electrocardiogram, Seismocardiogram, and Cardiac Time Intervals |
title_fullStr | A Chest‐Laminated Ultrathin and Stretchable E‐Tattoo for the Measurement of Electrocardiogram, Seismocardiogram, and Cardiac Time Intervals |
title_full_unstemmed | A Chest‐Laminated Ultrathin and Stretchable E‐Tattoo for the Measurement of Electrocardiogram, Seismocardiogram, and Cardiac Time Intervals |
title_short | A Chest‐Laminated Ultrathin and Stretchable E‐Tattoo for the Measurement of Electrocardiogram, Seismocardiogram, and Cardiac Time Intervals |
title_sort | chest laminated ultrathin and stretchable e tattoo for the measurement of electrocardiogram seismocardiogram and cardiac time intervals |
topic | blood pressure cardiac time intervals digital image correlation epidermal electronics e‐tattoos |
url | https://doi.org/10.1002/advs.201900290 |
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