Extended Data Fig. 2: The transparency window in the mouse abdomen appears orange to red after the skin has fully absorbed the tartrazine molecules. | Nature Protocols

Extended Data Fig. 2: The transparency window in the mouse abdomen appears orange to red after the skin has fully absorbed the tartrazine molecules.

From: Achieving transient and reversible optical transparency in live mice with tartrazine

Extended Data Fig. 2

a, An orange-to-red transparency window in the abdomen of a 23-day-old female C57Bl/6J mouse weighing 9.8 g. Excess tartrazine was removed before taking the photo. Note the orange-red color in this video comes from the tartrazine dye, not blood. b, A close-up view of the transparency window is shown by pressing a coverslip onto the abdomen. c, A white dashed line is overlaid on the photo to mark the red/yellow boundary in the skin. Scale bars: 1 cm.

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