Fig. 3

Tunable DNA release. Variation trends of maximum vortex speed (a) and interface shear stress (b) when changing the height were theoretically analyzed using FEM simulation. Experimental release effectiveness under different power (a) and height (b) were recorded using percentage of remained DNA as a function of resonator treating time, observed at 0, 5, 10, 20, 30, 50, 70 and 90 min