Distinguishing malignant from normal oral tissues using FTIR fiber-optic techniques.

摘要: Oral tissue samples were studied using mid-IR fiber-optic attenuated total reflectance spectroscopy and other spectral techniques. The 1745 cm(-1) band, which is assigned to the ester group (C==O) vibration of triglycerides, a reliable marker that present in normal tissues but absent or weak band malignant oral tissues. Other bands such as C--H stretching amide are also helpful distinguishing from Subtraction spectra confirmed above conclusion. In addition, Raman spectroscopic measurements agreement with results observed FTIR spectra.