Indocyanine Green (ICG) is a powdered dye used for fluorescence imaging in various medical applications. ICG emits fluorescence between 750 nm and 950 nm with maximum values of approximately 810 nm when dissolved in water. In this experiment, Indocyanine Green concentrations were made in the range of 2 to 50 micromolar. A micromolar is a concentration of one-millionth molecular weight per liter. This range allows light to pass through the solution without fully absorbing it. With a Raman setup, we analyzed the concentrations.
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