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10.4. FRAP
1. Click on Edit Bleach toolbar button to open up Bleach Control dialog.
2. Set Bleach parameters in Bleach Control dialog
Check Bleach after Number of Scans
Set “Scan Number” to for pre-bleach imaging
Set “Iterations” value – this may require empirical
determination. It needs to be enough to allow complete
bleaching but few enough to allow quick return to imaging.
Try 10 as a first attempt.
In “Excitation of Bleach Track” set bleaching laser to
100%
3. Click Define
Region button to select
bleach area
4. Define area to bleach then select it by
ticking the checkbox along side the ROI.
Close dialog.
5. Open Time Series Control dialog by clicking the
TimeSeries button in the main toolbar.
5. Set FRAP time-course in Time Series Control Dialog
Start Series = Manual.
Stop Series = select Time then enter the duration of the
experiment.
Enter Cycle Delay (time between frames).
7. Click “StartB” to start experiment.
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