The invention discloses an ultramicro nano thrombolytic microbubble as well as a preparation method and application thereof, and belongs to the technical field of
drug-loaded
microbubbles. The thrombolytic microbubble comprises a core
drug and a lipid shell, wherein the core
drug comprises an anti-
active oxygen material,
urokinase and perfluoropentane; the preparation method comprises the following steps: firstly preparing the anti-
active oxygen material, then encapsulating the anti-
active oxygen material with
liposome, adding
urokinase for hydration after encapsulation, adding perfluoropentane, emulsifying, and freeze-
drying to obtain the thrombolytic microbubble. The ultramicro nano
thrombolysis microbubble is used for treating
thrombus,
phase change occurs to perfluoropentane under the ultrasonic action, so that
thrombus is developed more obviously under the ultrasonic action, meanwhile,
urokinase and an anti-active
oxygen material are released from the microbubble through the
cavitation effect, the released urokinase can deepen into the
thrombus under the blasting action of the perfluoropentane, and the
thrombolysis effect of the thrombus is improved. And the anti-active
oxygen material can remove active
oxygen and protect vascular endothelial cells and macrophages after
revascularization, so that the risk of bleeding is reduced.