Tattooing the heart with graphene electrodes

For the first time researchers have found a way to make cardiac implant electrodes from the carbon allotrope graphene. These ‘graphene tattoos’ visually resemble temporary tattoos for children, and experiments on rats have shown they outperform conventional pacemaker electrodes. Explore this new research with secondary school students to give a real-world context to your lessons on carbon allotropes and graphene. Plus, download the story and a summary slide for 14–16 learners.