Researchers develop test to confirm nanoparticle payload delivery

Breakthrough could advance nanoparticle disease therapies and vaccines. Nanoparticle delivery of drugs is an expanding field, particularly for gene therapies and vaccines. Previous research has estimated that nanoparticles — small conveyances that transport medicines, vaccines and other therapies — have a very low delivery rate to the cytosol, an area inside cells, and only release about 1% to 2% of their payload.