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. Author manuscript; available in PMC: 2013 May 19.
Published in final edited form as: Circulation. 2008 Sep 30;118(14 0):S121–S129. doi: 10.1161/CIRCULATIONAHA.107.759480

Figure 2. Optical bioluminescence imaging (BLI) signal from firefly luciferase (Fluc) expression reflects viable cell number.

Figure 2

(a) BLI of varying numbers of cells in 24-well plates with increasing signals. Scale bars represent peak signal in photons/s/cm2/sr. Cell numbers from all cell types showed robust correlation with (b) Fluc signal on ex vivo BLI and (c) in vitro Fluc enzyme on luminometry. (d) Both assays (BLI and luminometry) also correlated well with each other.