Figure 2

White light images and spatial intensity distributions of Raman signals for β-sheets, proteins, lipids, water, broad-band autofluorescence and protein-to-lipid ratio, β-sheet-to lipid ratio and β-sheets-to-protein ratio. First row shows a control sample, below two samples with plaque-like features and two samples with tangle like features. Grey scale bar below shows the range of the Raman intensity displayed. Image resolution is 64 × 64 pixels showing a tissue area of 30 × 30 µm. Tissue ID numbers are given on the right.