Tattoos are very cool and I do not want to say bad things about them. Evidence of tattooing dates back thousands of years, and the art form has a long history across the world in various cultures.

But it's not just that ink is capable of reaching the body's lymph nodes, as researchers previously revealed. Tattoo needles – even new ones – also may be playing a role. Tattoo needles typically are ...

The microscopic particles present in tattoo ink can travel inside the body and wind up in the lymph nodes, findings of a new study revealed. The lymph nodes serve a crucial role in the proper ...

Penn Engineers have redesigned a key component of lipid nanoparticles (LNPs), the delivery vehicles behind mRNA vaccines, to steer the particles toward lymph nodes while reducing off-target delivery ...