Gel-Based Sensor Continuously Monitors Wounds for Infection
Scientific American shares how this new sensor based on bioresponsive DNA hydrogel can alert a nearby smartphone when infection starts.
The sensor can detect an enzyme called deoxyribonuclease, or DNase. It acts as a reliable infection indicator because disease-causing bacteria produce the enzyme in large amounts, whereas bacteria on healthy skin do not, so testing for it reduces the chance of a false positive result. Furthermore, DNase builds up before other signs of infection appear. This new alert system—dubbed the wireless infection detection on wounds, or WINDOW, sensor—is described in a paper published on Friday in Science Advances.
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