All 3D‐Printed Soft High‐Density Surface Electromyography Electrode Arrays for Accurate Muscle Activation Mapping and Decomposition

High‐density surface electromyography (sEMG) electrode arrays enable the recording of tens to hundreds of channels of electromyographic signals, which have found wide applications in clinics and human‐machine interfaces. However, current manufacturing technologies of high‐density sEMG electrode arra...

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Vydané v:Advanced functional materials Ročník 34; číslo 14
Hlavní autori: Zhao, Yi, Chen, Chen, Lu, Baoyang, Zhu, Xiangyang, Gu, Guoying
Médium: Journal Article
Jazyk:English
Vydavateľské údaje: Hoboken Wiley Subscription Services, Inc 01.04.2024
Predmet:
3D printing
Arrays
decomposition
Density
Electrodes
Electromyography
high‐density electrode arrays
Mapping
muscle activation mapping
Prostheses
sEMG monitoring
Three dimensional printing
ISSN:1616-301X, 1616-3028
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Popis
Shrnutí:High‐density surface electromyography (sEMG) electrode arrays enable the recording of tens to hundreds of channels of electromyographic signals, which have found wide applications in clinics and human‐machine interfaces. However, current manufacturing technologies of high‐density sEMG electrode arrays generally involve high‐cost equipments, complicated procedures, and insufficient programmability, severely hampering the rational design and practical applications of customized yet cost‐effective high‐density electrode arrays. Herein, the facile and efficient fabrication of novel 32‐channel soft high‐density sEMG electrode arrays by an all‐printed technique based on multimaterial direct ink writing 3D printing is presented. By employing rational four‐layer stacked structure designs with systematic ink printability evaluation, it can successfully realize seamless interfacial integration during the multimaterial printing, achieving reproducible, programmable, continuous fabrication of soft high‐density sEMG electrode arrays. The all 3D‐printed soft electrode arrays exhibit excellent stability, low impedance, and high signal‐to‐noise ratio superior to commercial products with an increase of 32.2%. Such intriguing properties enable this all 3D‐printed electrode arrays the unique capability of mapping muscle activation of the forearm, and the motor unit action potential trains can be precisely identified for varying hand gestures to effectively explore the innovative human‐machine interface toward diverse applications such as teleoperation and prosthetic control. The 32‐channel soft high‐density surface electromyography electrode arrays are presented by an all‐printed technique based on multimaterial direct ink writing 3D printing. The all 3D‐printed electrode arrays exhibit low impedance and high signal‐to‐noise ratio superior to commercial products (32.2% increase). Muscle activation and motor unit action potential trains can be precisely identified for varying hand gestures by applying to the forearm, enabling the exploration of innovative human‐machine interfaces.
Bibliografia:ObjectType-Article-1
SourceType-Scholarly Journals-1
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content type line 14
ISSN:1616-301X
1616-3028
DOI:10.1002/adfm.202312480