The sensor, described in the journal Scientific Reports, has a lateral flow system that uses antibody-coated gold nanoparticles as high-sensitivity labels.
The presence of uranium in groundwater can lead to severe health problems, from renal failure to cancer, said researchers from he Catalan Institute of Nanoscience and Nanotechnology (ICN) in Catalonia.
Measurements are therefore rarely performed in-field, which adds time between the moment of contamination and the moment of detection, delaying remediation efforts.
This biosensor is able to detect uranium in small enough quantities to ensure compliance with international drinking water standards, they said.
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