The vaccination certificate of the future will get under your skin according to researchers at the Massachusetts Institute of Technology (MIT). A colour pattern with the vaccination dose is injected into the skin and not visible to the naked eye. The colour contains quantum dots no larger than a few nanometers.
In December 2019, Robert S. Langer and his team developed and patented a technique whereby transdermal patches could be used to label people with invisible ink in order to store medical and other information subcutaneously. The research “was funded by the Bill and Melinda Gates Foundation and the Koch Institute for Integrative Cancer Research”.
When the quantum dots are illuminated by UV light, an electron in the quantum dot can be excited to a state of higher energy. In vitro studies, based on cell cultures, on quantum dots suggest that their toxicity may derive from multiple factors including their physicochemical characteristics.