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A sweat sensor is expected to be the most appropriate wearable device for noninvasive healthcare monitoring. However, the practical use of sweat sensors is impeded by irregular and low sweat secretion rates. Here, a sweat‐collecting patch that can collect sweat efficiently for fast and continuous healthcare monitoring is demonstrated. The patch uses cactus‐spine‐inspired wedge‐shaped wettability‐patterned...
Noninvasive Healthcare Monitoring
In article number 2102740, Kilwon Cho and co‐workers report a sweat‐collecting patch with directional sweat transportation, enabling fast and continuous monitoring of sweat by a sensor. The wedge‐shaped wettability patterns of the patch are inspired by spines of cacti; the channel shape, in combination with the superhydrophobic/superhydrophilic surface materials,...
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