Is there any way to filter endotoxins?

They measure under 10 nm, which puts them below the size of a virus and only slightly bigger than one of the peptides we like so much.

Certain aggregates can be removed by filtration, though those need to be considerably bigger. Picture clumps in pancake batter: the clump will partly disintegrate, allowing individual molecules to slip by.
 
Clyde22 said:

I want to make sure I have this right. I keep hearing conflicting things. Nothing actually removes endotoxins?
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Endotoxins can be removed using several approaches, for example positively charged nylon membranes or resin-based filters. However, for such small amounts, I doubt these methods are practical or affordable. The 0.22 micron filters we typically rely on to remove bacteria and molds are unable to capture endotoxins.
 
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