Corning Costar 96-Well Black Polystyrene Plate is a black polystyrene, untreated microplate recommended for use with our cell-based fluorescent probe assays in fluorescence plate reader applications. The all-black composition minimizes well-to-well crosstalk with fluorescence and other signal-based analytical techniques. Costar 96-Well Black Polystyrene Plate may also be used to immobilize large molecules with large hydrophobic regions for use in another assay procedures.