Tattoo ink, Dijon mustard, neuroscience art & more

Interesting links from the overlap of science, art and culture

Chemists in the US are working on a project to analyse and catalog the ingredients of popular tattoo inks. These inks are not as strictly regulated by the FDA as you might expect from something that’s injected in the body, and the research project has already uncovered a few concerning compounds, such as azo dyes that could convert to cancer-causing mol…