A sensitive whole-cell biosensor for the simultaneous detection of a broad-spectrum of toxic heavy metal ions
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Updated: Apr 16, 2026
An Anaerobic Biosensor Assay for the Detection of Mercury and Cadmium
Published on: December 17, 2018
S Cerminati1, F C Soncini, S K Checa
1Instituto de Biología Molecular y Celular de Rosario (IBR-CONICET), Facultad de Ciencias Bioquímicas y Farmacéuticas (UNR), Ocampo y Esmeralda, 2000-Rosario, Argentina. checa@ibr-conicet.gov.ar.
Abstract:
Bacterial biosensors are simple, cost-effective and efficient analytical tools for detecting bioavailable heavy metals in the environment. This work presents the design, construction and calibration of a novel whole-cell fluorescent biosensory device that, simultaneously and with high sensitivity, reports the presence of toxic mercury, lead, cadmium and/or gold ions in aqueous samples. This bio-reporter can be easily applied as an immediate alerting tool for detecting the presence of harmful pollutants in drinking water.
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