Best storage method for peripheral nerves?

Hi all! I need to keep some rat sciatic nerves in storage for a couple months and I’m wondering what’s the best way of doing that, as I’m new to this. Some have suggested using cryoprotectants like glycerol-dmso and storage at -80C. Any suggestions are welcome! Thanks.

Can you provide more detail about how the tissues were preserved? Are they fresh? PFA-fixed? What are your end applications?