I am new to exosome research and I need to do SEM of my exosome sample. I want to fix my exosomes on the glass cover slips, every time I try to fix them, after fixation when I try to take them out, it breaks down in to pieces.
You can try attaching with 0.1% poly l lysine charged coverslips. You can also try spinning down in refrigerated ultracentrifuge onto poly l lysine charged silica chips.