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Tattoo made of gold nanoparticles revolutionizes medical diagnostics IMAGE: Gold nanoparticles embedded in a porous hydrogel can be implanted under the skin and used as medical sensors. The sensor is like an invisible tattoo revealing concentration changes of substances. Image:  ill./©: Nanobiotechnology Group, JGU Department of Chemistry 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 the body recognizes the sensor as a foreign object. On the other hand, the sensor s color which indicates concentration changes has been unstable

United statesKatharina kaeferStiftung rheinland pfalzThies schroederCarsten soennichsenScientists at johannes gutenberg university mainzNanobiotechnology groupMax planck graduate centerJohannes gutenberg university mainzProfessor carsten soennichsenNano lettersஒன்றுபட்டது மாநிலங்களில்காதரின கேபெர்தீஎஸ் ஸ்க்ரோடர்நானோ எழுத்துக்கள்