March 17, 2008
An international team of researchers has built a nanoscale biosensor that detects food-borne bacteria.
The biosensor has a mix of gold and silver nanorods with antibodies to capture Salmonella bacteria. The Salmonella bacteria then cause the dye molecules to produce an enhanced fluorescence signal, even with a small number of bacteria present.
Food-borne pathogens cause approximately 76 million illnesses, 325,000 hospitalizations, and 5,000 deaths in the United States… read more