Cyanine7 (Cy7) dye is a near-infrared (NIR) fluorescent dye commonly used in various research and medical applications. This organic dye has unique optical properties that make it an excellent candidate for use in biological imaging, drug discovery, and diagnostics. Its excitation and emission spectra lie in the range of 750-800 nm, which is ideal for imaging applications due to the low tissue autofluorescence and high penetration depth of NIR light in biological tissue.
Cy7 dye is commonly used in fluorescence microscopy, flow cytometry, and in vivo imaging to study various biological processes such as gene expression, cell trafficking, protein localization, and tumor targeting. Its stability, high quantum yield, and low toxicity make it a popular choice for many researchers and medical professionals.