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Scientists at the University of Washington say their approach would be more precise and less painful than the traditional skin test that uses a hypodermic needle.
Researchers develop a microneedle array that could analyze your body chemistry in real time.
Researchers at Purdue University develop a pump that, activated by body temperature alone, could push large-molecule drugs through painless microneedles.
Researchers at the Georgia Institute of Technology have designed a painless patch of "microneedles" that could replace hypodermic needles and even annual flu shots.