Assessing membrane charging by alternating electric fields in giant unilamellar vesicles

Our group recently published direct observation of membrane charging in FluoVolt labeled CHO-K1 cells by nanosecond electrical pulses using a streak camera. Using this technique, called Streak Camera Microscopy (SCM), we imaged the membrane charging dynamics in giant unilamellar vesicles (GUVs) during AC exposures up to 6 MHz and compared these results to existing capacitive circuit models of membranes. This work shows further application of Streak Camera Microscopy for evaluation of high speed biological events.