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by bix6 402 days ago
Can someone eli5 how this printing works?
1 comments

it seems like they're able to use liposomes (molecules encapsulated in fatty or waxy organic shells) to deliver material to the desired location then use ultrasound to unsheath those molecules and knit them together into larger structures

I have no experience or education in this field so take this with a grain of salt.

Certain compounds like fibrin (in blood clots) and collagen (in extra cellular matrix) self assemble under certain conditions. Small volumes delivered via liposomes being triggered to self assemble in specific locations is fascinating.
I can't access the actually paper, perhaps a more naive question but is there a physical 3d noozle of sorts to deposit these liposomes in a 3d space?
I think they inject it in the approx location and then the ultrasound makes the structures form