Scientists have created a graphene "tattoo" that will allow you to track blood pressure for a long time and covertly A team of researchers from the University of Texas at Austin and Texas A&M University have developed a sticky and stretchable graphene electronic "tattoo" that adheres comfortably to the skin and is almost invisible.
The device makes a measurement by applying a weak electric current to the skin, which allows you to measure the resistance of the area of u200bu200bthe body between the sensors.
In total, the researchers collected 18,667 records, of which 89% went to training the neural network and 11% to testing for cross-validation.
The sensor was tested in extreme heat and during physical activity on volunteers, which resulted in heavy sweating. In all cases, the sensor gave accurate readings during continuous operation up to 300 minutes or longer. This is 10 times more than in other sensors.
