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. 2014 Jul 4;4:5574. doi: 10.1038/srep05574

Figure 1. Spectroscopic characterization of hemoglobin and fluorescent nanodiamond.

Figure 1

(a) Comparison between the excitation spectrum of 100-nm FND and the absorption spectra of hemoglobin (Hb) in three different forms, deoxyHb, oxyHb, and metHb. The emission of FND was collected at 700–800 nm to obtain its excitation spectrum. Two vertical black lines indicate the points of the excitation at 532 nm and 599 nm. (b) Comparison between the fluorescence spectra of FND (1 mg/mL) and metHb (150 mg/mL) excited at 532 nm in water.