i shall be staining the extracted brain after i am done with all of my experimental groups. I shall be storing them for that long. what condition and solution will be optimum for this type of storage?
from my point of view it is best to have them only for a short time (24hours) in formalin, then do cryoprotection and freeze them at -80°C and store them like this.
I'm Agree with Dr Christoph Van Riesen, because I had some protocols like this with this condition (24 h in fixative solution and vitrification and the save them in -70 °C)