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Related Experiment Video

Updated: Jan 1, 2026

Fabrication and Characterization of a Conformal Skin-like Electronic System for Quantitative, Cutaneous Wound Management

Fabrication and Characterization of a Conformal Skin-like Electronic System for Quantitative, Cutaneous Wound Management

Published on: September 2, 2015

Three-Dimensional Self-Healable Touch Sensing Artificial Skin Device.

Sulbin Park¹, Byeong-Gwang Shin¹, Seongwan Jang¹

¹3D Printing Materials Center , Korea Institute of Materials Science (KIMS) , Changwon 51508 , South Korea.

ACS Applied Materials & Interfaces

|December 21, 2019

Summary

Researchers developed 3D-printed artificial skin (e-skin) that mimics human skin's touch sensing and self-healing capabilities. This advanced e-skin accurately detects touch location on complex shapes without intricate processing.

Keywords:

3D printing e-skin ion-conductive hydrogel self-healing polymer tactile sensor

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Area of Science:

Materials Science
Biomedical Engineering
Robotics

Background:

Human skin possesses remarkable capabilities including complex shape coverage, self-healing, and tactile sensing.
Existing electronic skin (e-skin) devices often lack adaptability in shape and struggle to integrate multiple functionalities.
Developing multifunctional e-skin that replicates human skin's properties remains a significant challenge.

Purpose of the Study:

To demonstrate novel artificial skin devices in application-oriented three-dimensional (3D) shapes.
To achieve precise touch location sensing and spontaneous mechanical damage healing in e-skin.
To overcome the shape limitations of conventional film-type e-skin devices.

Main Methods:

Fabrication of 3D artificial skin devices using an ion-conductive self-healing hydrogel system.
Utilizing extrusion-based 3D printing for optimal structural design of the e-skin.
Characterization of the hydrogel system's material properties and printing process.

Main Results:

Successful fabrication of ring-shaped and fingertip-shaped artificial skin devices conforming to finger models.
Demonstrated a significant electronic signal contrast (∼5.4 times current increase) upon human finger contact.
Achieved accurate positional information for arbitrary touch locations on the 3D artificial skin without complex processing.

Conclusions:

The developed 3D-printed artificial skin successfully integrates touch sensing and self-healing functionalities.
The application-oriented 3D shapes overcome limitations of traditional e-skin, enabling perfect fitting on complex body parts.
This technology offers a promising platform for advanced human-skin-like electronic devices.