Design and fabrication of a COP-based microfluidic chip : chronoamperometric detection of Troponin T

Llibertat Abad, Francisco Javier del Campo, Francesc Xavier Munoz, Luis J. Fernandez, Daniel Calavia, Gloria Colom, Juan P. Salvador, Maria Pilar Marco, Vanessa Escamilla-Gomez, Berta Esteban-Fernandez de Avila, Susana Campuzano, Maria Pedrero, Jose M. Pingarron, Neus Godino, Robert Gorkin, Jens Ducree

Research output: Contribution to journalArticlepeer-review

20 Citations (Scopus)

Abstract

This work demonstrates the design and fabrication of an all cyclo-olefin polymer based microfluidic device capable of capturing magnetic beads and performing electrochemical detection in a series of gold electrodes. The size of chip is of a microscope slide and features six independent measuring cells for multianalyte detection purposes. The aim of this work is to show that rapid prototyping techniques can be instrumental in the development of novel bioassays, particularly in clinical diagnosis applications. We show the successful determination of troponin-T, a cardiac disease marker, in the clinically relevant range of 0.05-1.0 ng/mL. This methodology achieves a detection limit of 0.017 ng/mL in PBS solutions, and is capable of detecting less than 1 ng/mL in a 1:50 human serum dilution.
Original languageEnglish
Pages (from-to)3187-3194
Number of pages8
JournalElectrophoresis
Volume33
Issue number21
DOIs
Publication statusPublished - 2012

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