Facile Transfer of Spray-Coated Ultrathin AgNWs Composite onto the Skin for Electrophysiological Sensors

Disposable wearable sensors that ultrathin and conformable to the skin are of significant interest as affordable and easy-to-use devices for short-term recording. This study presents a facile and low-cost method for transferring spray-coated silver nanowire (AgNW) composite films onto human skin usi...

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Main Authors: Minwoo Lee, Jaeseong Kim, Myat Thet Khine, Sunkook Kim, Srinivas Gandla
Format: Article
Language:English
Published: MDPI AG 2023-08-01
Series:Nanomaterials
Subjects:
Online Access:https://www.mdpi.com/2079-4991/13/17/2467
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author Minwoo Lee
Jaeseong Kim
Myat Thet Khine
Sunkook Kim
Srinivas Gandla
author_facet Minwoo Lee
Jaeseong Kim
Myat Thet Khine
Sunkook Kim
Srinivas Gandla
author_sort Minwoo Lee
collection DOAJ
description Disposable wearable sensors that ultrathin and conformable to the skin are of significant interest as affordable and easy-to-use devices for short-term recording. This study presents a facile and low-cost method for transferring spray-coated silver nanowire (AgNW) composite films onto human skin using glossy paper (GP) and liquid bandages (LB). Due to the moderately hydrophobic and rough surface of the GP, the ultrathin AgNWs composite film (~200 nm) was easily transferred onto human skin. The AgNW composite films conformally attached to the skin when applied with a LB, resulting in the stable and continuous recording of wearable electrophysiological signals, including electromyogram (EMG), electrocardiogram (ECG), and electrooculogram (EOG). The volatile LB, deposited on the skin via spray coating, promoted rapid adhesion of the transferred AgNW composite films, ensuring stability to the AgNWs in external environments. The AgNWs composite supported with the LB film exhibited high water vapor breathability (~28 gm<sup>−2</sup>h<sup>−1</sup>), which can avoid the accumulation of sweat at the skin–sensor interface. This approach facilitates the creation of rapid, low-cost, and disposable tattoo-like sensors that are practical for extended use.
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spelling doaj.art-63efccda1cf84bfa94a0a852c821c9872023-11-19T08:37:05ZengMDPI AGNanomaterials2079-49912023-08-011317246710.3390/nano13172467Facile Transfer of Spray-Coated Ultrathin AgNWs Composite onto the Skin for Electrophysiological SensorsMinwoo Lee0Jaeseong Kim1Myat Thet Khine2Sunkook Kim3Srinivas Gandla4Multifunctional Nano Bio Electronics Lab, Department of Advanced Materials Science and Engineering, Sungkyunkwan University, Suwon 16419, Republic of KoreaMultifunctional Nano Bio Electronics Lab, Department of Advanced Materials Science and Engineering, Sungkyunkwan University, Suwon 16419, Republic of KoreaMultifunctional Nano Bio Electronics Lab, Department of Advanced Materials Science and Engineering, Sungkyunkwan University, Suwon 16419, Republic of KoreaMultifunctional Nano Bio Electronics Lab, Department of Advanced Materials Science and Engineering, Sungkyunkwan University, Suwon 16419, Republic of KoreaMultifunctional Nano Bio Electronics Lab, Department of Advanced Materials Science and Engineering, Sungkyunkwan University, Suwon 16419, Republic of KoreaDisposable wearable sensors that ultrathin and conformable to the skin are of significant interest as affordable and easy-to-use devices for short-term recording. This study presents a facile and low-cost method for transferring spray-coated silver nanowire (AgNW) composite films onto human skin using glossy paper (GP) and liquid bandages (LB). Due to the moderately hydrophobic and rough surface of the GP, the ultrathin AgNWs composite film (~200 nm) was easily transferred onto human skin. The AgNW composite films conformally attached to the skin when applied with a LB, resulting in the stable and continuous recording of wearable electrophysiological signals, including electromyogram (EMG), electrocardiogram (ECG), and electrooculogram (EOG). The volatile LB, deposited on the skin via spray coating, promoted rapid adhesion of the transferred AgNW composite films, ensuring stability to the AgNWs in external environments. The AgNWs composite supported with the LB film exhibited high water vapor breathability (~28 gm<sup>−2</sup>h<sup>−1</sup>), which can avoid the accumulation of sweat at the skin–sensor interface. This approach facilitates the creation of rapid, low-cost, and disposable tattoo-like sensors that are practical for extended use.https://www.mdpi.com/2079-4991/13/17/2467spray coatingAgNWsglossy paperconformableelectrophysiologicalsensors
spellingShingle Minwoo Lee
Jaeseong Kim
Myat Thet Khine
Sunkook Kim
Srinivas Gandla
Facile Transfer of Spray-Coated Ultrathin AgNWs Composite onto the Skin for Electrophysiological Sensors
Nanomaterials
spray coating
AgNWs
glossy paper
conformable
electrophysiological
sensors
title Facile Transfer of Spray-Coated Ultrathin AgNWs Composite onto the Skin for Electrophysiological Sensors
title_full Facile Transfer of Spray-Coated Ultrathin AgNWs Composite onto the Skin for Electrophysiological Sensors
title_fullStr Facile Transfer of Spray-Coated Ultrathin AgNWs Composite onto the Skin for Electrophysiological Sensors
title_full_unstemmed Facile Transfer of Spray-Coated Ultrathin AgNWs Composite onto the Skin for Electrophysiological Sensors
title_short Facile Transfer of Spray-Coated Ultrathin AgNWs Composite onto the Skin for Electrophysiological Sensors
title_sort facile transfer of spray coated ultrathin agnws composite onto the skin for electrophysiological sensors
topic spray coating
AgNWs
glossy paper
conformable
electrophysiological
sensors
url https://www.mdpi.com/2079-4991/13/17/2467
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