Fig. 3. Peak integrated intensity maps for SW480 fixed cells either incubated with DC473 or with an equivalent concentration of DMSO as a control. The 1597 and 2197 cm–1 peaks show DC473 accumulation mainly in lipid droplets, as indicated by the correlation with the 1445 cm–1 intensity map mainly due to lipid vibrations. The 1338 cm–1 intensity map shows mixed contributions of proteins and nucleic acids, and the 1656 cm–1 map shows Amide I intensity as a map of proteins. The 1455 and 1434 cm–1 maps mainly show contributions of lipids.
