期刊
ACS APPLIED MATERIALS & INTERFACES
卷 9, 期 19, 页码 16488-16494出版社
AMER CHEMICAL SOC
DOI: 10.1021/acsami.7b02633
关键词
Microchannels; pyro-EHD printing; polymer; direct writing; microfluidic; 3D printing; ferroelectric crystal
In this study, we report a direct writing method for the fabrication of microfluidic footpaths by pyro-electro-hydrodynamic (EHD) jet printing. Here, we propose the use of a nozzle-free three-dimensional printing technique for the fabrication of printed structures that can be embedded in a variety of soft, transparent, flexible, and biocompatible polymers and thus easily integrated into lab-on-chip devices. We prove the advantage of the high resolution and flexibility of pyro-EHD printing for the realization of microfluidic channels well below the standard limit in dimension of conventional ink-jet printing technique and simply adaptable to the end-user desires in terms of geometry and materials. Starting from the description of the innovative approach proposed for the channel fabrication, we demonstrate the design, fabrication, and proof of a microfluidic matrix of interconnected channels. The method described here could be a breakthrough technology for the fabrication of in situ implantable, stretchable, and biocompatible devices, opening new routes in the field of biomedical engineering and wearable electronics.
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