a microscopic particle of matter that is measured on the nanoscale, usually one that measures less than 100 nanometers.
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Novavax’s vaccine, given in two shots 21 days apart, contains a rod-shaped nanoparticle studded with the coronavirus’s spike protein.
The process involves placing polyethylene inside a reaction chamber set to 280° C, with a catalyst powder containing platinum nanoparticles.
Moderna had been working for 10 years to improve its nanoparticles.
The vaccines both use a genetic molecule called mRNA that is enclosed in a nanoparticle to deliver instructions to cells to make the coronavirus’ spike protein, which the virus uses to break into cells.
The result of their work is a vaccine made of nanoparticles coated with flu proteins that do just that.