A Chest-Laminated Ultrathin and Stretchable E-Tattoo for the Measurement of Electrocardiogram, Seismocardiogram, and Cardiac Time Intervals.
blood pressure
cardiac time intervals
digital image correlation
epidermal electronics
e‐tattoos
Journal
Advanced science (Weinheim, Baden-Wurttemberg, Germany)
ISSN: 2198-3844
Titre abrégé: Adv Sci (Weinh)
Pays: Germany
ID NLM: 101664569
Informations de publication
Date de publication:
17 Jul 2019
17 Jul 2019
Historique:
received:
06
02
2019
revised:
01
04
2019
entrez:
6
8
2019
pubmed:
6
8
2019
medline:
6
8
2019
Statut:
epublish
Résumé
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.
Identifiants
pubmed: 31380208
doi: 10.1002/advs.201900290
pii: ADVS1141
pmc: PMC6662084
doi:
Types de publication
Journal Article
Langues
eng
Pagination
1900290Subventions
Organisme : NCATS NIH HHS
ID : UL1 TR001105
Pays : United States
Déclaration de conflit d'intérêts
The authors declare no conflict of interest.
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