| Storage Conditions | Maintain the lyophilized material at -20°C until expiration date as stated on the label.
General applications:
After a quick spin, reconstitute in 0.1M phosphate buffer, pH 6.8, to a concentration of 0.1-1.0 mg/mL. Reconstituted bFGF should be stored in working aliquots at -20°C for up to six months. Multiple freeze/thaw cycles will result in significant loss of activity.
For Human ES cell culture:
After a quick spin, reconstitute to 10 μg/mL in a filtered solution of 0.5% BSA, 1 mM DTT, and 10% glycerol in Dulbecco's PBS. Aliquot and store at -20°C for up to six months. This solution can then thawed and diluted to 4 ng/mL for the culture of human ES cells with a feeder layer, or to 8 ng/mL to supplement mouse embryonic fibroblast-conditioned medium (for feeder-free human ES cell culture). |
