Biodegradable, Self-Adhesive, Stretchable, Transparent, and Versatile Electronic Skins Based on Intrinsically Hydrophilic Poly(Caproactone-Urethane) Elastomer

IF 3.4 3区 材料科学 Q2 MATERIALS SCIENCE, MULTIDISCIPLINARY
Pulikanti Guruprasad Reddy, Vipul Sharma, Vijay Singh Parihar, Ijlal Haider, Amit Barua, Anastasia Koivikko, Kyriacos Yiannacou, Hatai Jongprasitkul, Minna Kellomäki, Veikko Sariola
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Abstract

In biomedical sciences, there is a demand for electronic skins with highly sensitive tactile sensors that have applications in patient monitoring, human–machine interfaces, and on-body sensors. Sensor fabrication requires high-performance conductive surfaces that are transparent, breathable, flexible, and easy to fabricate. It is also preferable if the electrodes are easily processable as wastes, for example, are degradable. In this work, the design and fabrication of hydrophilic silanol/amine-terminated poly(caprolactone-urethane) (SA-PCLU) elastomer-based breathable, stretchable, and biodegradable electrodes are reported. Ag nanowires dispersed in water are sprayed onto the intrinsically hydrophilic electrospun SA-PCLU that became embedded into the scaffold and formed conformal hydrophilic polyurethane-based conductive networks (HPCN). The electrodes are used to fabricate capacitive, curvature, and strain sensors, all having monomaterial composition. In addition to displaying particularly good transparencies at low sheet resistances, stretchability, hydrophilicity, and tight and conformal bonding with the target surface, the electrodes also allow the evaporation of perspiration, making them suitable for epidermal sensors for long-time use. The application of the HPCN electrodes in flexible electronics and bionic skin applications is demonstrated through gesture monitoring experiments and swelling sensors.

Abstract Image

可生物降解的,自粘的,可拉伸的,透明的,多功能的基于亲水性聚(己内酯-聚氨酯)弹性体的电子皮肤
在生物医学科学中,对具有高灵敏度触觉传感器的电子皮肤有需求,这些传感器可用于患者监测、人机界面和身体传感器。传感器制造需要高性能的导电表面,透明,透气,灵活,易于制造。如果电极易于作为废物处理,例如,是可降解的,也是可取的。在这项工作中,设计和制造了亲水性硅醇/胺端聚(己内酯-氨基甲酸乙酯)(SA-PCLU)弹性体为基础的透气、可拉伸和可生物降解电极。分散在水中的银纳米线被喷涂到本质上亲水的静电纺丝SA-PCLU上,并嵌入到支架中,形成保形的亲水聚氨酯基导电网络(HPCN)。电极用于制造电容、曲率和应变传感器,所有这些传感器都具有单一材料组成。除了在低片电阻、可拉伸性、亲水性以及与目标表面紧密和保形结合时显示特别好的透明度外,电极还允许汗水蒸发,使其适合长期使用的表皮传感器。通过手势监测实验和肿胀传感器演示了HPCN电极在柔性电子和仿生皮肤中的应用。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
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来源期刊
Advanced Engineering Materials
Advanced Engineering Materials 工程技术-材料科学:综合
CiteScore
5.70
自引率
5.60%
发文量
544
审稿时长
1.7 months
期刊介绍: Advanced Engineering Materials is the membership journal of three leading European Materials Societies - German Materials Society/DGM, - French Materials Society/SF2M, - Swiss Materials Federation/SVMT.
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