Virus scan for the body

This article is a fairly intriguing. It is about how researchers have put together a type of metal detector device for scanning viruses. They use nano-sized rods to detect what are known as "Raman Shifts" which is a signal that is emmited off viral DNA and RNA when a laser is applied to either one. Every virus has a unique frequency, like a "fingerprint." Scientists have known of the Raman shifts since 1928, but have not been able to amplify the signal enough till now. Today, researchers use nanotubes at a specific angle, made of specific materials to detect the small signal from the RNA. They claim it can detect a single virus and are developing a commercial model currently

http://www.physorg.com/news82816307.html