The authors of the new technology are a group of scientists from Osaka University, headed by Professor Nakagawa. Instead of a traditional syringe, a microneedle patch is used to administer the vaccine. It is made from a soluble material impregnated with a medication. When applied to the skin, the tissue dissolves painlessly, and the vaccine gets inside.
The new technology has undeniable advantages. As you know, a specialist is required to perform an injection, which is expensive and not always possible. In addition, many people are terrified of injections. Prior to this, attempts were made to create microneedles based on silicon or metal. But this turned out to be not entirely safe, because after the injections, their fragments remained in the skin.
Patch microneedles are free from this disadvantage, since they completely dissolve. In tests with the three types of influenza vaccine, encouraging results were obtained - no negative reactions were noted in all subjects.