This Experimental Patch Can Painlessly Check Your Glucose Levels, Scientists Say – ScienceAlert

Scientists in Japan have developed a paper-based sensor equipped with an array of extremely tiny microneedles, which they say can painlessly penetrate human skin for a quick and easy method of conducting diagnostic tests for conditions like pre-diabetes.
Microneedles are super tiny-spikes so small they’re measured in micrometres (one thousandth of a millimetre), designed to puncture only the outermost layer of the skin, not reaching sensory nerves that lie deeper in the dermis.
Because of this…

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