USphere Prime (C4F10)

The Usphere Prime (C4F10) agents are plain microbubbles, containing perfluorobutane (C4F10) with a phospholipid shell. These agents are 1.1-1.4µm in size, with a concentration of >2.5x1010 microbubbles/ml; each vial contains 0.8ml. These agents are shipped at room temperature but may be stored at 2-8oC for up to 6 months.

Once activated, using the UltraMix Agitator (a one-time purchase) the microbubbles can be used for up to 3 days with >90% performance when properly stored.