@misc{10481/90773,
year = {2024},
month = {1},
url = {https://hdl.handle.net/10481/90773},
abstract = {Fractal-like geometries applied to biosignal-electrodes design show great
potential for enhancing the signal acquisition of sensing systems. This study
reports a novel approach for flexible, silver-free, and dry fractal-like electrodes
based on Laser-Induced Graphene (LIG) obtained through laser photothermal
processing of a commercial polyimide film. This one-step mask-less
manufacturing process enables the simple fabrication of natural and
optimized fractal-like shapes inspired by actual snowflake patterns. To ensure
a reliable and standardized connection to the measurement unit, the
electrodes are equipped with a snap terminal. The electrodes are structurally
characterized using various techniques including Scanning Electron
Microscopy (SEM), Raman spectroscopy, and X-ray Photoelectron
Spectroscopy (XPS). By benchmarking the performance of these electrodes
against Ag/AgCl wet commercial electrodes and LIG electrodes shaped as
commercial ones, a heart rate-monitoring accuracy of over 96.8% is achieved,
with high specificity, positive prediction, and sensitivity, surpassing the 95.8%
achieved by conventional commercial electrodes. These results demonstrate
the efficacy of fractal-based designs in combination with LIG-based
transduction, offering flexible and cost-effective electrocardiogram (ECG)
electrodes with improved performance compared to traditional wet electrodes.},
organization = {Grant PID2020-117344RB-I00 funded
by MCIN/AEI 10.13039/501100011033},
organization = {FEDER/Junta de Andalucía-Consejería de Transformación Económica, Industria, Conocimiento y Universidades Project P20_00265 and Project BRNM-680-UGR20},
organization = {Project TED2021-129949A-I00 funded by
MCIN/AEI/10.13039/501100011033 and by European Union NextGenerationEU/
PRTR},
organization = {Junta
de Andalucía – Consejería de Universidad, Investigación e Innovación
through the project ProyExcel_00268},
organization = {Spanish Ministry
of Sciences and Innovation through the Ramón y Cajal fellow RYC2019-
027457-I and the pre-doctoral grant PRE2021-096886},
publisher = {Wiley-VCH GmbH},
title = {Dry Laser-Induced Graphene Fractal-like ECG Electrodes},
doi = {10.1002/aelm.202300767},
author = {Houeix, Yann and Gerardo, Denice and Romero Maldonado, Francisco Javier and Toral López, Víctor and Hernandez, Lidia and Rivadeneyra Torres, Almudena and Castillo Morales, María Encarnación and Morales Santos, Diego Pedro and Rodríguez Santiago, Noel},
}