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Compact portable biosensor for arsenic detection in aqueous samples with Escherichia coli bioreporter cells

Truffer, Frederic ; Buffi, Nina ; Merulla, Davide ; Beggah, Siham ; van Lintel, Harald ; Renaud, Philippe ; van der Meer, Jan Roelof ; Geiser, Martial

In: Review of Scientific Instruments, 2014, vol. 85, no. 015120, p. 4

We present a compact portable biosensor to measure arsenic As(III) concentrations in water using Escherichia coli bioreporter cells. Escherichia coli expresses green fluorescent protein in a linearly dependent manner as a function of the arsenic concentration (between 0 and 100μg/L). The device accommodates a small polydimethylsiloxane microfluidic chip that holds the agarose-encapsulated...