Freezing cells- Media or FBS ?
Posted 08 February 2010 - 12:37 AM
And should I be doing a cell count prior to freezing the cells ?
Posted 08 February 2010 - 06:48 AM
We always freeze our cells in 70% growth medium (including FBS), 20% FBS and 10% DMSO. Works well for us. I never count the cells but I write the splitting factor (e.g. 1:10 from T25 flask) on the tube.
Posted 10 February 2010 - 05:06 AM
wow another method... had no idea there was so much variability in just the composition of the freezing media. I'm dealing with HT29 (cancer cells) and RINm5F cells (insulin secreting beta cells). Any suggestions for the best freezing media ?