Tattoo made of gold nanoparticles revolutionizes medical diagnostics: Color changes of gold nanoparticles under the skin reveal concentration changes of substances in the body – Science Daily

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 but had to be replaced after a few days or weeks. On the one hand, there is the problem of implant rejection because…

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