Symbol copyright Getty Pictures
Scientists have evolved a sensor that may monitor blood sugar ranges through analysing sweaty pores and skin.
However rather than a gymnasium-soaked t-shirt, it wishes only one millionth of a litre of sweat to do the testing.
The workforce - in South Korea - showed the sensor was once accurate and think it could eventually assist patients with diabetes.
And in additional exams on mice, the sensor used to be attached to a patch of tiny needles to routinely inject diabetes medication.
The staff at the Seoul National University were seeking to triumph over the will for "painful blood collection" needed in diabetes patients.Symbol copyright Getty Photographs
And this would be the long run:Image copyright Hyunjae Lee and Changyeong Music
The sensor is versatile so it may transfer with the surface it's stuck onto.
However, the scientists wanted to triumph over a sequence of challenges to make it work.
There is less sugar in sweat than blood so it is tougher to search out, and different chemicals in sweat similar to lactic acid can disrupt the consequences.
So the patch has 3 sensors protecting monitor of sugar ranges, four that check the acidity of the sweat and a humidity sensor to analyse the amount of sweat.
It is all encased in a porous layer that allows the sweat to soak via and shower the electronics.
All this data is passed onto a portable pc which does the analysis to work out the sugar levels.Image copyright Hyunjae Lee and Changyeong Tune
Assessments sooner than and after folks sat down for a meal, revealed within the journal Technology Advances, showed the consequences from the sweat patch "agree smartly" with those from conventional kit.
However, for the next level the researchers grew to become to mice with diabetes.
They used the blood sugar reveal to regulate an array of microneedles to provide the mice doses of the diabetes drug metformin.Image copyright Hyunjae Lee and Changyeong Tune
The researchers finish: "the present gadget supplies necessary new advances toward the painless and pressure-loose" care for diabetes.
However, there is a soar between proving one thing can feel sugar ranges in a lab and turning that into one thing that is so dependable people can positioned their lives in its hands.
So the researchers next wish to take a look at how the patches paintings within the long-term.
Follow James on Twitter.