United States researchers recently through the observation of different bacteria colonies scattered laser's unique way, invented a rapid detection method for bacteria.
United States Purdue University researchers have invented a "laser scattering apparatus" to bacterium colony breeding a few hours later to identify them. Scattering instrument includes a laser diode, a screen, bacterial cultures, computers and digital cameras. The researchers first in bacterial culture dish will foster bacterial samples for several hours, then the bacteria colony to biological and chemical analysis to detect these bacteria groups for hazard class.
The researchers used a laser beam bombardment bacteria found that different types of bacterial colonies can be laser scattering into unique pattern, similar to a person's fingerprint. They apply these patterns projection to the drop in the culture dish behind the screen, and digital cameras. By imaging analysis, researchers can identify commonly found in food in 6 different listeria, accuracy of up to 90%.
Researchers say scatterometer analysis software "recognize" a bacterial scattering pattern, the future in such bacteria can automatically identify. Researchers plan to the next step to set up the database to improve scatterometer on automatic identification of bacteria.
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