期刊
ENGINEERING
卷 7, 期 10, 页码 1434-1440出版社
ELSEVIER
DOI: 10.1016/j.eng.2020.10.012
关键词
Lab-on-a-chip; Fs laser; Circulating tumor cells; Point of care; Thermal bonding; Polymers
资金
- SMILE (a SAW-MIP Integrated device for oraL cancer Early detection) project, part of the ATTRACT program from the European Union's Horizon 2020 Research and Innovation Program [777222]
This paper discusses the process of using rapid prototyping methods to fabricate polymeric labs-on-a-chip, highlighting the materials, technologies, and applications involved. The research demonstrates that the platform, with its low cost, customization options, and biological applications, is suitable for industrial exploitation and point-of-care applications.
Rapid prototyping methods for the design and fabrication of polymeric labs-on-a-chip are on the rise, as they allow high degrees of precision and flexibility. For example, a microfluidic platform may require an optimization phase in which it could be necessary to continuously modify the architecture and geometry; however, this is only possible if easy, controllable fabrication methods and low-cost materials are available. In this paper, we describe the realization process of a microfluidic tool, from the computer-aided design (CAD) to the proof-of-concept application as a capture device for circulating tumor cells (CTCs). The entire platform was realized in polymethyl methacrylate (PMMA), combining femtosecond (fs) laser and micromilling fabrication technologies. The multilayer device was assembled through a facile and low-cost solvent-assisted method. A serpentine microchannel was then directly biofunctionalized by immobilizing capture probes able to distinguish cancer from non-cancer cells without labeling. The low material costs, customizable methods, and biological application of the realized platform make it a suitable model for industrial exploitation and applications at the point of care. (C) 2020 THE AUTHORS. Published by Elsevier LTD on behalf of Chinese Academy of Engineering and Higher Education Press Limited Company.
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