In my research while trying to incorporate monomolecular edged blades in my story, i saw that a monomolecular edge would get instantly dull after cutting anything, but then i saw these depleted uranium armor piercing bullets that shed it's material and self-sharpens as it penetrates.
I wonder if it would be possible to implement this kind of property into a MME blade, something meant only for slashing soft tissue and not stabbing (like a karambit) so being brittle is not all of an issue.
And obviously the blades would need to be disposable because they would wear off insanely fast.