St. Francis Xavier University

How gold nanoparticles can be used to quickly test drinking water for bacteria

How gold nanoparticles can be used to quickly test drinking water for bacteria

A group of researchers at a Nova Scotia university, in partnership with international colleagues, have developed a test to rapidly detect bacteria contamination in drinking water by using gold nanoparticles, antibiotics and light. The technology devised by St. Francis Xavier University researchers is simpler and faster than other laboratory methods of finding bacteria in water, some of which take up to 18 hours and involve many more steps.

New data shows Omicron was in Nova Scotia wastewater in November

New data shows Omicron was in Nova Scotia wastewater in November

A research team at Dalhousie University started detecting Omicron in Nova Scotia wastewater weeks before the COVID-19 variant was officially confirmed in the province. "It was surprising to us to see a viral signal in early November. Only in retrospect were we able to see that it was a variant and not the original," said Prof. Graham Gagnon, director of the Dalhousie University Centre for Water Resource Studies.