Figure 2 of
Beattie, Mol Vis 2007;
13:1106-1113.
Figure 2. Raman spectra of the inner nuclear and outer nuclear layers
The spectra, which were acquired using 633 nm excitation, reveal the difference between the spectra of the inner (INL) and outer (ONL) nuclear layers. The positive bands in the subtraction spectrum are related to fatty acids (indicated by asterisk) and negative bands related to DNA (indicated by arrows).