Gold & DNA simplify disease detection

HEALTH
BY:

A clever combination of functional DNA and gold nanoparticles has produced a point-of-care diagnostic system that could allow medical workers in developing countries to achieve faster and cheaper detection of many common diseases. ...

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Then and now

HISTORY
BY:

Shell was one of the first Canadian oil companies to expand beyond fuels to commodity chemicals like the methyl ethyl ketone trumpeted in this ad from the June 1949 issue...

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Fireflies inspire LED coating

MATERIALS
BY:

The jagged pattern of scales on the abdomen of a firefly has inspired researchers to create a new coating for light emitting diodes (LEDs) that extracts 55 per cent more light than noncoated LEDs. Researchers in Belgium examined fireflies and noted scales with a periodically repeating...

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