[george76]

MIT engineers have developed a way to store medical information under the skin, using a quantum dot dye that is delivered, along with a vaccine, by a microneedle patch... The dye, which is invisible to the naked eye, can be read later using a specially adapted smartphone.

[Grampa Dave]

links:

https://www.google.com/search?q=MIT+engineers+have+developed+a+way+to+store+medical+information+under+the+skin%2C+using+a+quantum+dot+dye+that+is+delivered%2C+along+with+a+vaccine%2C+by+a+microneedle+patch...+The+dye%2C+which+is+invisible+to+the+naked+eye%2C+can+be+read+later+using+a+specially+adapted+smartphone.&rlz=1CAMWDF_enUS930&oq=MIT+engineers+have+developed+a+way+to+store+medical+information+under+the+skin%2C+using+a+quantum+dot+dye+that+is+delivered%2C+along+with+a+vaccine%2C+by+a+microneedle+patch...+The+dye%2C+which+is+invisible+to+the+naked+eye%2C+can+be+read+later+using+a+specially+adapted+smartphone.&aqs=chrome..69i57&sourceid=chrome&ie=UTF-8