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Searching for the chemical clues that will crack the case - September 2018

Photo: Thorsten Naeser

Searching for the chemical clues that will crack the case - September 2018

Here, doctoral student Syed Ali Hussein analyses blood samples with infrared laser light in the LEX Photonics Laser Lab at LMU Munich. After the light has passed through the sample, its spectrum differs from that of the incident beam. This is because the molecules present in the blood have interacted with, and absorbed some of the light at specific wavelengths. Since the precise molecular composition of blood varies from one individual to the next, the pattern of light absorption serves as a chemical fingerprint of a person’s metabolic state.

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