Fig. 1. Principle and setup for air-assisted atomization device

Fig. 2. Measurement method of atomization angle

Fig. 3. Measurement method of droplet settling velocity

Fig. 4. Droplet size distribution and the influence of spray parameters on it，H1-H4 represented the spray height of 25， 50， 75 and 100 mm， respectively

Fig. 5. Effect of atomization parameters on spray cone angle and spray area

Fig. 6. Measurement and influence analysis of drop velocities

Fig. 7. Viability of cells sprayed by AAAD

Fig. 8. Proliferation of cells was not impaired by AAAD sprayed