VECTASHIELD Antifade Mounting Medium prevents rapid photobleaching of fluorescent proteins and dyes. It does not solidify, but remains a semi-liquid on the slide and can be stored without sealing. If desired, coverslips can be sealed around the perimeter with nail polish or a plastic sealant. Mounted slides should be stored at 4 degrees C, protected from light. VECTASHIELD Mounting Medium is compatible with a wide array of fluorochromes, enzymatic substrates, and fluorescent proteins, including many of the fluorophores used in super resolution methods like STORM, STED, and 3D-SIMM imaging, extending their lifetime and enhancing their photo-switching characteristics. (Olivier, N. et al., 2013, Biomedical Optics Express, Vol. 4 No. 6, pp. 885-899). The refractive index is 1.45. Ships at Ambient Temperature and Once received the storage temperature is 2-8 °C.