Tattoo made of gold nanoparticles revolutionizes medical
diagnostics

The idea of implantable sensors that continuously
transmit information on vital values and concentrations of
substances or drugs in the body has fascinated physicians and
scientists for a long time. Such sensors enable the constant
monitoring of disease progression and therapeutic success. However,
until now, implantable sensors have not been suitable to remain in
the body permanently and require replacement after a few days or
weeks.