A compact, low-cost and low-powered device was developed and arranged for multiplexed biodetection of sea water contaminants from continuous flow mode. Electronics, mechanics and fluidics were designed to guarantee identical functional liquid flow through eight parallel sensor microchambers during a predetermined time period providing 8 values at the same time. The accuracy and repeatability of the device was tested in-lab, achieving a deviation of less than 10% when measuring the same analyte in all the chambers. The experimental results obtained with our device were finally compared with those measured in continuous flux by a commercial potentiostat SP150 (Bio-Logic Science Instruments), obtaining identical results, which validated the proposed device.

This work has been funded by funding agency EC project SEA-on-a-chip (FP7-OCEAN-2013-614168) and partially supported by the European Union's Horizon 2020 research and innovation programme under the Marie Sklodowska-Curie agreement No 712949 (TECNIOspringPLUS) and from the Agency of Business Competitiveness of the Government of Catalonia (TECSPR18-1-0042). The Nb4D group is a consolidated research group (2017 SGR 1441).

Peer reviewed