Raman spectra acquired from the drop-coated albumin and glycated albumin samples.

<p>Raman spectra acquired from the drop-coated albumin and glycated albumin samples derived from their corresponding aqueous solutions, respectively (the spectra are normalized and offset for the sake of clarity). The asterisks indicate the principal peaks, namely the 1655 cm⁻¹ Amide-I band, the 1447 cm⁻¹ CH₂ deformation band, the 1002 cm⁻¹ phenylalanine band and the tyrosine doublet at 828 and 850 cm⁻¹.