Caltech's new wireless sweat sensors quantify stress level, opening the door to better smart protection wearables

February 28, 2020
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by Lisheng Gao
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The wireless sweat sensors are made of graphene-embedded porous structures that are coupled with cortisol antibody molecules (cortisol is regarded as the stress hormone of the human body). The porous structure and coupled antibody give the sweat sensors high sensitivity and accuracy, respectively. The sensors measure the amount of cortisol in the sweat to quantify the user's level of stress. The researchers claim the sensors are mass-producible and cost-effective. Quantifying the stress of the human body is both challenging and crucial for workers working under harsh environments. Clients interested in worker condition monitoring should monitor the research progress, licensing opportunities, and spinoffs from this research project. 

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