Laser Could Analyze Breath to Detect Diseases
Researchers in Australia have developed an “optical dog’s nose”--laser technology that has the potential to detect diseases like diabetes and cancer simply by analyzing a person's breath.
The technique is based on the fact that the molecular compounds in a person's breath change when the person has a disease. Scientists at the University of Adelaide in Australia developed technology involving a special laser spectrometer that can analyze the molecular composition of a sample of gas. The device uses light to sense the range of molecules that are present in the gas, giving it the potential to accurately and quickly provide a diagnosis based on a person's breath.
More and more scientists are working in the field of breath analysis, and while the Australian researchers acknowledge they need to do additional testing to see how results may differ from person to person, they hope to have a working prototype in two to three years.