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.

Getting a tattoo has always come with risks. There’s the possibility of an allergic reaction, infection or even diseases like hepatitis or tetanus if the equipment isn’t properly sterilized. And there ...

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 ...

Hard evidence has emerged that nano-sized particles from tattoo inks travel from the skin where they’re embedded to a person’s lymph nodes, where they get stuck. Plenty of circumstantial evidence ...

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 ...

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 ...