Summary

Photoacoustic spectroscopy (PAS) does not require optically transparent samples and is, therefore, well suited for analysis of solid-state samples. Fourier transform infrared (FTIR)-PAS of solid materials containing protein exhibited strong absorption in the amide I and amide II regions of the IR spectrum. Growth of a filamentous fungus, Phanerochaete chrysosporium, on cellulose discs was quantitatively determined by monitoring amide I absorption with FTIR-PAS.

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