1,2-Diaminoanthraquinone is a sensitivity, specificity and nontoxic nitric oxide (NO) fluorescent probe. 1,2-Diaminoanthraquinone can be used to detect NO productions in live cell and animals with a maximum of absorption at about 540 nm and a detection limit of 5 渭M for NO.
1,2-Diaminoanthraquinone and the product formed upon its reaction with NO, DAA-TZ, can be spectrally resolved using fluorescence spectroscopy and confocal microscopy[1].
[1]. Mar铆a J Mar铆n, et al. Fluorescence of 1,2-diaminoanthraquinone and its nitric oxide reaction product within macrophage cells. Chembiochem. 2011 Nov 4;12(16):2471-7.
[2]. Francisco Galindo, et al. Spectroscopic studies of 1,2-diaminoanthraquinone (DAQ) as a fluorescent probe for the imaging of nitric oxide in living cells. Photochem Photobiol Sci. 2008 Jan;7(1):126-30.