Because this kind of tattoo-style electronic skin requires biosensors that are relatively flexible, stretchable and highly sensitive, as well as comfortable to wear, and graphene's flexibility allows it to fit the skin to a high degree, which greatly increases the accuracy of the measurements. The sensor was developed by researchers at the University of Texas at Austin, who hope that the ultra-thin sensor can be used in the beauty market and even replace existing medical testing equipment,
For example, the graphene electrodes in the University of Texas' graphene tattoo sensors are only 0.3 nanometers thick, which allows for better readings of changes in subcutaneous tissue caused by variations in electrical activity, whereas general medical monitoring The larger electrodes in the device are prone to gaps during skin stretching and contraction, which reduces signal accuracy.
So far we've seen a lot of electronic tattoo Demo, but the market has not formally launched the product, which inevitably makes people wonder whether it is another conceptual product in the laboratory.
As mentioned earlier, the need to be ultra-thin to fit the skin, and to cram integrated circuits that can pick up a variety of biosignals into such a small space, places very high demands on the electronics.
Notably, Stanford University's Chernan Bao's team published a new technique last year in the journal Nature that allows components to be stretched twice as far without loss of conductivity or sensitivity, making it possible to mass-produce this new type of flexible, stretchable electronic component. As Bao Zhennan puts it:
This proves that making electronics out of electronic materials like electronic skin is an achievable thing, and no longer a sci-fi dream.
This means that the commercial application of electronic skin may not be far away.