Interestingly, some groups are trying to use them as a delivery platform for cancer therapies [1], though I don't really understand how they'd compete with some

Interestingly, some groups are trying to use them as a delivery platform for cancer therapies [1], though I don't really understand how they'd compete with something biocompatible and tested like liposomes. [1] https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3210734/ https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3210734/