Table 1 Parameter setting in Sutter P−1000 micropipette puller (model P−1000; Sutter Instruments Co., US)
Tip angle θ | Stage | Heat | Pull | Velocity | Time | Pressure | Repetition |
|---|---|---|---|---|---|---|---|
0° | 1 | Ramp+10 | 150 | 75 | 250 | 500 | once |
5° | 1 | Ramp+14 | 0 | 90 | 255 | once | |
2 | Ramp+14 | 0 | 32 | 255 | 670 | twice | |
3 | Ramp+4 | 0 | 37 | 255 | once | ||
10° | 1 | Ramp+14 | 0 | 90 | 255 | once | |
2 | Ramp+14 | 0 | 32 | 255 | 670 | twice | |
3 | Ramp+4 | 0 | 29 | 255 | once |