Laser tool identifies mutant listeria bacteria

BARDOT laser scans bacteria colonies looking for unique patterns that each bacterium makes.

A Purdue University-developed laser tool already effective in quickly detecting harmful bacteria has been shown to detect mutant varieties of listeria — and in the same amount of time.

The "bacterial rapid detection using optical scatter technology" (BARDOT) laser scans bacterial colonies looking for unique patterns that each bacterium makes. When the light penetrates a colony of bacteria, it produces a scatter pattern that can be matched against a library of known bacteria pattern

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