Jahr 2015
Autor(en) Katharina Haase*, Niels Kroger-Lui*, Annemarie Pucci, Arthur Schonhals and Wolfgang Petrich
Titel Advancements in quantum cascade laser-based infrared microscopy of aqueous media
KIP-Nummer HD-KIP 15-93
KIP-Gruppe(n) F6,F23
Dokumentart Paper
Quelle Faraday Discuss.
doi 10.1039/C5FD00177C
Abstract (en)

The large mid-infrared absorption coefficient of water frequently hampers the rapid, label-free infrared microscopy of biological objects in their natural aqueous environment. However, the high spectral power density of quantum cascade lasers is shifting this limitation such that mid-infrared absorbance images can be acquired in situ within signal-to-noise ratios of up to 100. Even at sample thicknesses well above 50 µm signal-to-noise ratios above 10 are readily achieved. The quantum cascade laser-based microspectroscopy of aqueous media is exemplified by imaging an aqueous yeast solution and quantifying glucose consumption, ethanol generation as well as the production of carbon dioxide gas during fermentation.

  author   = {Haase*, Katharina and Kroger-Lui*, Niels and Pucci, Annemarie and Schonhals, Arthur and Petrich, Wolfgang},
  title    = {FDVIBSPC16: Advancements in quantum cascade laser-based infrared microscopy of aqueous media},
  journal  = {Faraday Discuss.},
  year     = {2015},
  volume   = {},
  pages    = {},
  note     = {*These authors contributed equally to this work.},
  doi      = {10.1039/C5FD00177C},
  url      = {}
URL C5FD00177C
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