Silk screen "tattoo stickers" can measure human fatigue
Illustration of the screen printing process for making a tattoo sensor
Comprehensive foreign media reported on December 7 that Canadian researchers have invented a new tattoo sensor. The sensor can detect the change of PH value when the skin produces a metabolic stress response, measure the degree of human fatigue, and can be used in the fields of medicine, beauty industry, etc.
Researchers at the University of Toronto Scarborough campus used standard tattoo printing paper on the market, using standard screen printing technology and aniline electrochemical polymerization properties to "print" this new sensor.
The shape of this sensor is a smiling face, built-in ion selective electrode (ISE), can be flexibly attached to the human body. The "eyes" of the smiling face have the function of working and reference electrodes, and the "ears" are the contacts that connect to the measuring device.
Previously, medical researchers had used similar ISE devices to diagnose metabolic diseases, fitness coaches have also used such devices to judge the fatigue or dehydration of athletes during training, and the cosmetics industry also uses it to measure skin secretions, but these devices are bulky It is difficult to attach to sweaty skin.
The new sensor is small in size, flexible in use, good in fixation, and can continue to work when people are training or sweating. It also has the advantage of being easy to disassemble, and it can be "wiped" from the skin with a tissue soaked in warm water.
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