Figure 8.

Chemical changes during vesicle oxidation. (A–D) Raman spectra corresponding to the beginning of the measurements (t = 0 s, green curves) and to a specific characteristic time (red curves, A: 165 s, B: 216 s, C: 51 s, D: 60 s). The 1:1 difference spectrum is in black. The characteristic band regions are tagged: peroxy (O-O) stretch (blue signs), carbon double-bond stretch (red signs), and six-membered ring stretch (C, green signs). (E–H) The Raman kinetics of characteristic band regions is shown. The same colors as for tags in top panel are used: peroxy (O-O) stretch (blue curves), carbon double-bond stretch (red curves), and six-membered ring stretch (green curves).