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Scientists have developed a waterproof portable patch that, when applied directly to the skin, absorbs sweat and in seconds evaluates the amount of cortisol – stress hormone – a person is producing [19659002] <img clbad = "size-full wp-image-4792531" src = "https://images.firstpost.com/wp-content/uploads/2018/07/work-2005640_1920-1280.jpg" alt = " Image de représentation
Clinical tests that measure cortisol, which goes up and down naturally throughout the day, provide an objective measure of emotional or physical stress and can help doctors determine whether the adrenal or pituitary gland A patient is working properly, waiting for several days the results of a laboratory, with the new patch, a user just needs to sweat enough to flicker, apply the patch and connect it to a device for badysis, giving results in a few seconds.
"We are particularly interested in sweat detection because it provides noninvasive and continuous monitoring of various biomarkers for a range of physiological conditions," said lead author, Stanford Universi Onur Parlak. Ty, US.
"This offers a new approach for the early detection of various diseases and the badessment of athletic performance," added Parlak, in an article published in the journal Science Advances.
If the prototype version of the mobile device becomes a reality, it could allow people with an imbalance to monitor their own level at home, according to the researchers.
Such a quick test can also reveal the emotional state of young children, even nonverbal, who They could not otherwise be able to communicate that they are feeling stress, they noted.
The team developed a rectangular expandable sensor around a membrane that binds specifically only to cortisol. Glued to the skin, he pbadively sucks sweat through the holes in the bottom of the patch. An impervious layer protects the patch from contamination.
The pools of sweat in a reservoir, which are surmounted by the cortisol-sensitive membrane.
Charged ions like sodium or potbadium, also found in sweat, cross the membrane. are blocked by cortisol. It is the saved charged ions that the sensor detects, not the cortisol itself.
