Judy Martinez “Electronic tattoo” will be taught to recognize emotions
Scientists from Tel Aviv University (Israel) have developed a temporary “electronic tattoo” for superficial non-invasive electromyography. The results of the corresponding study are published in Scientific Reports.
The device consists of a carbon electrode, a double-sided adhesive backing and a conductive polymer coating. The production of the electrode was carried out using screen printing technology combined with laser cutting to perforate the passivating adhesive layer. Plasma polymerization was performed with 3,4-ethylenedioxythiophene (ppEDOT) and was necessary to increase the electrode-skin contact resistance.
The operation of the device is based on the registration of the pH of the epidermis. To measure the biopotentials of the neuromuscular system, the “tattoo” is placed on the skin, after which the electrical activity is visualized on the monitor. Tests have shown that the device remains stable for three hours and does not cause skin irritation for ten hours of use.
According to Professor Yael Hanein, the development, among other things, can be used to display emotions by electromyographic monitoring of facial expression.
“Advertisers, sociologists, media representatives and other industries all want to know the consumer’s reaction to different products and situations. Now, in the absence of accurate scientific and accessible tools, they more often rely on the results of subjective questionnaires, ”the scientist noted.
In addition, the “electronic tattoo” will simplify the monitoring of muscle activity in patients with neurodegenerative diseases, accelerate the rehabilitation of people who have suffered a stroke or head injury: in particular, monitoring of their condition can be carried out remotely. For amputees, the device will make it easier to manage prostheses.
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