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Researchers from the California Institute of Technology have unveiled a cutting-edge "nano-ink" printing technology, paving the way for mass production of robust wearable sweat sensors. These sensors offer real-time monitoring of an array of biomarkers, encompassing vitamins, hormones, metabolites, and pharmaceuticals, empowering patients and healthcare professionals to continuously track alterations in molecular levels. The innovative nanoparticles, known as core-shell cubic nanoparticles, leverage a molecularly imprinted polymer shell to identify specific molecules and ascertain their content through signal variations. Furthermore, this technology facilitates the creation of sensor arrays using diverse nanoparticle "inks," enabling simultaneous measurement of multiple biomarker levels, thereby bolstering personalized healthcare initiatives.
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