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MIT combines several vaccines in a single injection

MIT combines several vaccines in a single injection
From Engadget - September 16, 2017

To create the cups, they first had to make an array of silicon molds using a process called photolithography. Each large array can create about 2,000 cups, which are then filled with doses of vaccination using a custom-made dispensing system. Finally, they put a lid over each cup and apply heat until they fuse together and form a tightly sealed container.

The team's microscopic cups can deliver doses at different times, because PLGA can be designed to break down at different rates if you manipulate its molecules. They tested their system by injecting mice with cups created to deteriorate at 9, 20 and 41 days after injection. It was a success -- the containers remained leak-proof until the days they were supposed to break down.

The engineers believe their system will be especially useful in the developing world and could have many potential applications other than drug delivery. Team leader Robert Langer explained:

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