TABLE 2.

Relative percent signal contribution of model basis components to the Raman spectra of early, middle, and late time point ATII cells

Time point	Nucleic acid (%)	Protein (%)	CHO* (%)	Lipid (%)
Early (days 3–4)	11.8 ± 2.0	51.8 ± 7.7	8.5 ± 1.5	27.9 ± 8.8
Middle (days 10–11)	10.8 ± 2.8	61.2 ± 5.6†	9.2 ± 1.3	18.8 ± 6.9†
Late (days 17–18)	8.4 ± 2.4	63.0 ± 4.6‡	9.5 ± 1.0	19.1 ± 5.9‡

^*CHO, carbohydrate.

^†and ^‡ denote statistically significant differences between early/middle and early/late time points, respectively, computed using Kruskal-Wallis test (p < 0.05).