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Title: Piezoelectric Nanofibers for Noninvasive Wearable Blood Pressure Monitoring
We present a study on the development of piezoelectric nanofibers for wearable hemodynamic sensing by incorporating nanoparticle doping of piezoelectric nanofibers. The composite material was characterized using various techniques, including scanning electron microscopy, X-ray diffraction, and tensile test. The material was also evaluated in a custom-built pressure chamber. Achieving optimal sensor performance, the study identified 20 wt% BTO composite materials as ideal, with a peak voltage output of 0.12V. Higher concentrations presented electrospinning difficulties, compromising material consistency. Quantitative analysis through fast Fourier transform (FFT) and digital bandpass filtering precisely isolated physiological signals, notably respiration and heartbeat, with the sensor demonstrating accurate detection capabilities at frequencies of 0.2, 1.35, and 2.65 Hz, indicative of the targeted physiological processes. The results demonstrate a promising potential for the use of these materials in future wearable hemodynamic sensing applications.  more » « less
Award ID(s):
1757371
PAR ID:
10552080
Author(s) / Creator(s):
; ; ; ; ;
Publisher / Repository:
ACS Publications
Date Published:
Journal Name:
ACS Applied Electronic Materials
Volume:
6
Issue:
9
ISSN:
2637-6113
Page Range / eLocation ID:
6378 to 6383
Subject(s) / Keyword(s):
piezoelectric nanofibers composite, electrospinning wearable sensor blood pressure monitoring
Format(s):
Medium: X
Sponsoring Org:
National Science Foundation
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