期刊
ACS APPLIED MATERIALS & INTERFACES
卷 13, 期 46, 页码 55656-55665出版社
AMER CHEMICAL SOC
DOI: 10.1021/acsami.1c15268
关键词
stretchable conductive fabric; wearable electronics; silver nanoparticles; biosafety; electrocardiograph; electrothermal therapy
资金
- Key R&D Program of Guangzhou [202007020003]
- National Natural Science Foundation of China [51872095]
- Natural Science Foundation of Guangdong Province [2018A030313059]
- Fundamental research fund for central universities [2020ZYGXZR036]
A stretchable conductive fabric with high conductivity and good stretchability was prepared by dip-coating poly(styrene-block-butadiene-block-styrene) and loading silver nanoparticles. The fabric exhibits high conductivity, high elongation at break, good breathability, and durability, as well as antibacterial properties and low cytotoxicity to skin cells.
Textile-based stretchable electronic devices are one of the best candidates for future wearable applications, as they can simultaneously provide high compliance and wearing comfort to the human body. Stretchable conductive textile is the fundamental building block for constructing high-performance textile-based stretchable electronic devices. Here, we report a simple strategy for the fabrication of stretchable conductive fabric using commercial knitted cloth as a substrate. Briefly, we coated the fibers of the fabric with a thin layer of poly(styrene-block-butadiene-block-styrene) (SBS) by dip-coating. Then, silver nanoparticles (AgNPs) were loaded on the fabric by sequential absorption and in situ reduction. After loading AgNPs, the conductivity of the fabric could be as high as similar to 800 S/m, while its maximal strain at break was higher than 540%. Meanwhile, such fabric also possesses excellent permeability, robust endurance to repeated stretching, long-time washing, and mechanical rubbing or tearing. We further approve that the fabric is less cytotoxic to mammalian skin and antibacterial to microbial, making it safe for on-skin applications. With these multifarious advantages, the fabric developed here is promising for on-skin wearable applications. As a proof-of-concept, we demonstrate its use as an electrode for collecting electrocardiograph signals and electrothermal therapy.
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