Cactus-Spine Inspired Sweat-Collecting Patch for the Practical Use of Wearable Sweat Sensor
발표자
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초록
내용
Sweat sensors are expected to be the most appropriate wearable device for healthcare monitoring because sweat can be used for sensing various diseases in painless and non-invasive ways and can be easily sampled from human body. However, practical use of sweat sensor has been impeded by irregular and low sweat-secretion rates. In this work, we demonstrate a sweat-collecting patch with directional sweat transport and high sweat-collection efficiency. The Laplace pressure driven by the cactus-spine inspired structure of the patch enhances significantly the speed of sweat collection, reaching 70 mm∙s-1 even in the direction opposite to that of gravity. As a result, our patch greatly reduces the time to fill the sensing area and therefore enables rapid and continuous monitoring of sweat.