FTIR Analysis of Sol-Gel Encapsulated Proteins. FTIR Analysis of Sol-Gel Encapsulated Proteins. Gel samples were prepared as KBr pellets and the spectrum of a blank gel was subtracted from that of a doped gel.
Proper subtraction yields a spectrum of the pure protein.
We attempted to identify the amounts and types of secondary structure in the molecule, however, the validity of our results are somewhat tentative due to the difficulty arising from water subtraction within this region.