Fluorescent microneedle patches detect biomarkers at much lower levels

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Nobody likes needles – at best they’re an unpleasant means to an important end. Microneedle patches could be a painless alternative, and now researchers have developed a way to use them to detect biomarkers at much lower levels, without drawing blood.
Microneedle patches are emerging as a less invasive way to deliver drugs or monitor someone’s health. As the name suggests, they’re made up of a sticky patch that can be applied to the skin like a Band-Aid, pressing an array of tiny little needles into the top layer of skin. These microneedles are too small to reach nerve receptors, making them

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