An “electronic nose” may one day be used to diagnose asthma, say researchers who presented a preliminary study of the device at the American Thoracic Society 2007 International Conference.The device contains chemical vapor sensors that react to the presence of volatile organic compounds, or VOCs, in a person’s exhaled breath. “A person’s breath contains a mixture of thousands of VOCs that may be used as markers of lung disease,” says researcher Silvano Dragonieri, M.D. [click link for full article]