http://www.cd-bioparticles.com/p/Fluorophore-Gold-Nanorods_258_260_277_3560.html50 OD fluorophore labeled gold nanorods with 40 nm diameter, longitudinal SPR absorbance max 750 nm. The fluorophore can be IRDye 800, Alexa Fluor 750, Alexa Fluor 680, Cy5.5, Alexa Fluor 647, Cy5, Alexa Fluor 633, Alexa Fluor 594, Texas Red, Alexa Fluor 546, Alexa Fluor 555, FITC and Alexa Fluor 488. These nanorods are available with the following active groups or ligands: amine, biotin, carboxyl, maleimide, methyl, neutravidin, NHS, streptavidin, MUTAB, protein A and secondary antibodies.