I am trying to fix MDA-MB-231 cells for confocal microscopy. The cells are seeded in PEG based scaffold using collagen based cell seeding matrix that acts as ECM. I will be imaging in hopes to find the shape of cell spheroid formed in the scaffold.
Number of cells seeded - 2 to 2.5 million
I need the fixed cells to survive transportation since I will be travelling to a different facility for confocal imaging. I need them to survive or retain morphology after fixing for atleast 24 hours.