Diabetics have to check their blood sugar levels at least once a day, and previous methods made this a painful and troublesome process.
But Korean researchers have found an easier and more accurate way of doing it.
They've developed a nano patch made of gold-doped graphene that can monitor a patient's blood sugar levels in real time.
When the patch is put on the body, it absorbs a certain amount of sweat, and a sensor measures the person's glucose level.
In addition, the patch automatically dispenses treatment; If a patient's blood sugar level is too high, tiny drug-filled needles will be activated to inject insulin into the body.
Although this is not the first time that scientists have developed a skin patch with the goal of making diabetes management easier, this is the first prototype that combines detection and drug delivery in one device!