人造皮肤
人体皮肤
材料科学
电子皮肤
制作
计算机科学
自愈
可穿戴计算机
表征(材料科学)
敏感皮肤
触觉传感器
可穿戴技术
纳米技术
弹性体
生物医学工程
软机器人
聚合物
聚二甲基硅氧烷
光电子学
人工肌肉
人工智能
工程类
医学
病理
遗传学
生物
替代医学
机器人
作者
Sulbin Park,Byeong-Gwang Shin,Seongwan Jang,Kyeongwoon Chung
标识
DOI:10.1021/acsami.9b19272
摘要
Human skin is a unique functional material that perfectly covers body parts having various complicated shapes, spontaneously heals mechanical damage, and senses a touch. E-skin devices have been actively researched, focusing on the sensing functionality of skin. However, most e-skin devices still have limitations in their shapes, and it is a challenging issue of interest to realize multiple functionalities in one device as human skin does. Here, new artificial skin devices are demonstrated in application-oriented three-dimensional (3D) shapes, which can sense exact touch location and heal mechanical damage spontaneously. Beyond the conventional film-type e-skin devices, the artificial skin devices are fabricated in optimal three-dimensional structures, via systematic material design and characterization of ion-conductive self-healing hydrogel system and its extrusion-based 3D printing. The ring-shaped and fingertip-shaped artificial skin devices are successfully fabricated to fit perfectly on finger models, and shows large electronic signal contrast, ∼5.4 times increase in current, upon a human finger contact. Furthermore, like human skin, the device provides the exact positional information of an arbitrary touch location on a three-dimensional artificial skin device without complicated device fabrication or data processing.
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