Virus Identification in 60 Seconds
November 16, 2006, 6:17 pm
Filed under: Medicine, Nanotechnology

Science Daily report that a technique has been developed allowing viruses to be indentified in seconds. The method involves measuring the shift in the frequency of light as it is scattered off DNA or RNA molecules – the Raman shift. The effect has been too weak to be of practical use until an interdisciplinary team deployed nanotechnology to take greater control of the light scattering event. The innovation involves laying nanorods at an angle of 86 degrees over the sample in order to amplify the measurable Rama shift.

Silver Nanorod array

“It saves days to weeks,” said lead author Ralph Tripp, Georgia Research Alliance Eminent Scholar in Vaccine Development at the UGA College of Veterinary Medicine. “You could actually apply it to a person walking off a plane and know if they’re infected.” [Source]

Bib Ref:

Rapid and Sensitive Detection of Respiratory Virus Molecular Signatures Using a Silver Nanorod Array SERS Substrate
Shanmukh, S., Jones, L., Driskell, J., Zhao, Y., Dluhy, R., and Tripp, R.A.
Nano Lett., 6, 11, 2630 – 2636, 2006, 10.1021/nl061666f


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