Bioinspired Composite Microfibers for Skin Adhesion and Signal Amplification of Wearable Sensors

Dirk-M. Drotlef, Morteza Amjadi, Muhammad Yunusa, Metin Sitti

Research output: Contribution to journalArticle

Abstract

A facile approach is proposed for superior conformation and adhesion of wearable sensors to dry and wet skin. Bioinspired skin‐adhesive films are composed of elastomeric microfibers decorated with conformal and mushroom‐shaped vinylsiloxane tips. Strong skin adhesion is achieved by crosslinking the viscous vinylsiloxane tips directly on the skin surface. Furthermore, composite microfibrillar adhesive films possess a high adhesion strength of 18 kPa due to the excellent shape adaptation of the vinylsiloxane tips to the multiscale roughness of the skin. As a utility of the skin‐adhesive films in wearable‐device applications, they are integrated with wearable strain sensors for respiratory and heart‐rate monitoring. The signal‐to‐noise ratio of the strain sensor is significantly improved to 59.7 because of the considerable signal amplification of microfibrillar skin‐adhesive films.
Original languageEnglish
Article number1701353
JournalAdvanced Materials
Volume29
Issue number28
DOIs
Publication statusPublished - 26 Jul 2017

Keywords

  • gecko-inspired adhesives
  • microfibers
  • skin adhesives
  • strain sensors
  • wearable sensors

Cite this

@article{439f2823ac6e4215a6fc60c3d733c4d0,
title = "Bioinspired Composite Microfibers for Skin Adhesion and Signal Amplification of Wearable Sensors",
abstract = "A facile approach is proposed for superior conformation and adhesion of wearable sensors to dry and wet skin. Bioinspired skin‐adhesive films are composed of elastomeric microfibers decorated with conformal and mushroom‐shaped vinylsiloxane tips. Strong skin adhesion is achieved by crosslinking the viscous vinylsiloxane tips directly on the skin surface. Furthermore, composite microfibrillar adhesive films possess a high adhesion strength of 18 kPa due to the excellent shape adaptation of the vinylsiloxane tips to the multiscale roughness of the skin. As a utility of the skin‐adhesive films in wearable‐device applications, they are integrated with wearable strain sensors for respiratory and heart‐rate monitoring. The signal‐to‐noise ratio of the strain sensor is significantly improved to 59.7 because of the considerable signal amplification of microfibrillar skin‐adhesive films.",
keywords = "gecko-inspired adhesives, microfibers, skin adhesives, strain sensors, wearable sensors",
author = "Dirk-M. Drotlef and Morteza Amjadi and Muhammad Yunusa and Metin Sitti",
year = "2017",
month = "7",
day = "26",
doi = "10.1002/adma.201701353",
language = "English",
volume = "29",
journal = "Advanced Materials",
issn = "0935-9648",
publisher = "Wiley-VCH Verlag",
number = "28",

}

Bioinspired Composite Microfibers for Skin Adhesion and Signal Amplification of Wearable Sensors. / Drotlef, Dirk-M.; Amjadi, Morteza; Yunusa, Muhammad; Sitti, Metin.

In: Advanced Materials, Vol. 29, No. 28, 1701353, 26.07.2017.

Research output: Contribution to journalArticle

TY - JOUR

T1 - Bioinspired Composite Microfibers for Skin Adhesion and Signal Amplification of Wearable Sensors

AU - Drotlef, Dirk-M.

AU - Amjadi, Morteza

AU - Yunusa, Muhammad

AU - Sitti, Metin

PY - 2017/7/26

Y1 - 2017/7/26

N2 - A facile approach is proposed for superior conformation and adhesion of wearable sensors to dry and wet skin. Bioinspired skin‐adhesive films are composed of elastomeric microfibers decorated with conformal and mushroom‐shaped vinylsiloxane tips. Strong skin adhesion is achieved by crosslinking the viscous vinylsiloxane tips directly on the skin surface. Furthermore, composite microfibrillar adhesive films possess a high adhesion strength of 18 kPa due to the excellent shape adaptation of the vinylsiloxane tips to the multiscale roughness of the skin. As a utility of the skin‐adhesive films in wearable‐device applications, they are integrated with wearable strain sensors for respiratory and heart‐rate monitoring. The signal‐to‐noise ratio of the strain sensor is significantly improved to 59.7 because of the considerable signal amplification of microfibrillar skin‐adhesive films.

AB - A facile approach is proposed for superior conformation and adhesion of wearable sensors to dry and wet skin. Bioinspired skin‐adhesive films are composed of elastomeric microfibers decorated with conformal and mushroom‐shaped vinylsiloxane tips. Strong skin adhesion is achieved by crosslinking the viscous vinylsiloxane tips directly on the skin surface. Furthermore, composite microfibrillar adhesive films possess a high adhesion strength of 18 kPa due to the excellent shape adaptation of the vinylsiloxane tips to the multiscale roughness of the skin. As a utility of the skin‐adhesive films in wearable‐device applications, they are integrated with wearable strain sensors for respiratory and heart‐rate monitoring. The signal‐to‐noise ratio of the strain sensor is significantly improved to 59.7 because of the considerable signal amplification of microfibrillar skin‐adhesive films.

KW - gecko-inspired adhesives

KW - microfibers

KW - skin adhesives

KW - strain sensors

KW - wearable sensors

U2 - 10.1002/adma.201701353

DO - 10.1002/adma.201701353

M3 - Article

VL - 29

JO - Advanced Materials

JF - Advanced Materials

SN - 0935-9648

IS - 28

M1 - 1701353

ER -