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An experimental skin implant changes color in the presence of acidity or elevated blood sugar, thus allowing diabetics and other patients to monitor their well-being without taking samples. The implant material may be incorporated into the tattoo ink formulations, which makes them as discrete or ostentatious as desired by the wearer.
MedicalXPress:
As detailed in the journal Angewandte Chemie, a colorimetric badytical formulation was injected into the skin in place of the tattoo ink. The color of the pigmented skin varied as the pH of the blood or other health indicators changed. The authors claim that such tattoos with sensors could allow permanent monitoring of patients using a simple and inexpensive technique. With the development of appropriate colorimetric sensors, the technique could also extend to recording the electrolyte and pathogen concentrations or dehydration level of a patient. Other studies will examine whether tattoo illustrations can be applied in a diagnostic context.
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