Journal
ANALYTICA CHIMICA ACTA
Volume 1000, Issue -, Pages 232-238Publisher
ELSEVIER SCIENCE BV
DOI: 10.1016/j.aca.2017.11.055
Keywords
Capillary patterning; 3D capillary valves; Antibody coating; Closed-chip
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Funding
- Horizon 2020 Framework Programme of the European Union [H2020-PHC-634013]
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The patterning of antibodies in microfluidics chips is always a delicate process that is usually done in an open chip before bonding. Typical bonding techniques such as plasma treatment can harm the antibodies with as result that they are removed from our fabrication toolbox. Here we propose a method, based on capillary phenomena using 3D capillary valves, that autonomously and conveniently allows us to pattern liquids inside closed chips. We theoretically analyse the system and demonstrate how our analysis can be used as a design tool for various applications. Chips patterned with the method were used for simple immunodetection of a cardiac biomarker which demonstrates its suitability for antibody patterning. (c) 2017 The Authors. Published by Elsevier B.V.
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