Table 1.
Mean value and standard deviation of droplet velocity of generated droplets of 370 mOsm solution at different electrospray voltages, grouped into sub groups at UES = 3 kV, dwd = 4 mm, dV/dt = 20 µl/min, ceGFP = 100 ug/ml.
| Electrospray voltage UES | group 1 | group 2 | group 3 | |||
|---|---|---|---|---|---|---|
| <vd> [m/s] | <vd> [nl] | <vd> [m/s] | <vd> [nl] | <vd> [m/s] | <vd> [nl] | |
| Vg [nl] (V% [%]) | Vg [nl] (V% [%]) | Vg [nl] (V% [%]) | ||||
| 2.7 kV | 2.8 ± 1.3 | 1.1 ± 1.1 | 12.9 ± 3.9 | 0.2 ± 0.7 | 3.2 ± 4.4 | 9.9 ± 4.2 |
| 611 (42%) | 107 (7%) | 724 (50%) | ||||
| 3.0 kV | 2.9 ± 1.3 | 1.4 ± 1.5 | 14.3 ± 3.5 | 0.2 ± 0.4 | ||
| 1040 (95%) | 51 (5%) | |||||
| 3.3 kV | 3.1 ± 0.9 | 1.4 ± 1.5 | 15.5 ± 2.8 | 0.7 ± 0.8 | ||
| 833 (82%) | 179 (18%) | |||||
Focusing on the major group contributing to the volume delivered, the mean volume of droplets increases with increasing applied voltage, while the fraction of delivered volume reaches a maximum at an applied Voltage of UES = 3 kV.