Blood Dyes

Luminol is a chemical that exhibits chemiluminescence with pK_a values of 6.74 and 15.1. Luminol exhibits chemiluminescence (CL) at 425 nm λ_max. Luminol is commonly used in forensics as a diagnostic tool for the detection of blood stains.

Luminol sodium salt is a chemical that exhibits chemiluminescence with pK_a values of 6.74 and 15.1. Luminol sodium salt exhibits chemiluminescence (CL) at 425 nm λ_max. Luminol sodium salt is commonly used in forensics as a diagnostic tool for the detection of blood stains.

Nile-TPA is a fluorescent probe for polarity detection, which can be used for lipid droplet targeting, cell polarity analysis, in vivo polarity imaging, and blood polarity monitoring in circulating tumor mouse models. The detection mechanism of Nile-TPA relies on the dual intramolecular charge transfer (ICT) effect generated by the electron-donating triphenylamine and Nile Red moieties and the electron-withdrawing carbonyl group; this probe emits strong red fluorescence in a low-polarity environment, and as polarity increases, the fluorescence intensity decreases and a red shift occurs due to changes in the excited-state dipole moment. In spectral tests, its excitation wavelength is 540 nm, and the emission wavelength varies in the range of 550-800 nm depending on solvent polarity; for cell, zebrafish and mouse imaging, Ex/Em = 561/570-620 nm, and for in vivo mouse imaging, Ex/Em = 560/620 nm.

TTVP is a high-performance, blood activated AIE near-infrared fluorescent probe. TTVP can display hemorrhagic areas in the mouse brain with ultra sensitivity and high contrast specificity. TTVP provides a visual assessment tool for the study of hemorrhagic conditions.