New sensors can be printed directly on human skin

Scientists from China presented a method of printing sensors directly on human skin. This does not require heating or other painful procedures.

The researchers explained that the wear-resistant sensors have evolved considerably in recent times – now we have moved from watches and electrodes to bending devices that provide much more accurate biometric measurements. That’s why an international team of researchers printed the sensors directly on human skin without heating. Previously, we used temperatures of 300 degrees Celsius for this purpose – their patient can not painlessly tolerate.

Therefore, the researchers changed the formula of the auxiliary layer, printing material and found that the skin can now be printed directly on the patient’s skin. The auxiliary layer for room temperature printing consists of polyvinyl alcohol paste, the main ingredient in sawn facial masks, and calcium carbonate, which consists of egg shells. The layer reduces the roughness of the printed surface and produces an ultra-thin layer of metal patterns that can bend and bend while maintaining electromechanical capabilities.

Sensors are capable of accurately and continuously recording temperature, humidity, blood oxygen level and pulse. The researchers have also networked the sensors on the case with the ability to wirelessly transmit data to track the combination of signals as they pass.

The process is also environmentally friendly. The sensor stays strong in cool water for several days. “The device can be recycled because removal will not damage it. This is especially important for people with sensitive skin, such as the elderly and infants. The device is useful and not an additional burden on the person or the environment.