Microneedle prototype combines invisible immunization record with vaccine

Microneedle prototype combines invisible immunization record with vaccine

Experimental vaccine patch embeds invisible dots under the skin, leaving record of immunization

By ELIZABETH COONEY

K.J. MCHUGH ET AL., SCIENCE TRANSLATIONAL MEDICINE

It’s a record that’s invisible to the naked eye, written in quantum dots that emit near-infrared light readable by a modified smartphone.

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