Electronic tattoos using silk and graphene

Researchers have invented electronic tattoos that use graphene and silk. They are a thin type of wearable electronics. Because of their lightness and softness, they are extremely lightweight. The weight can be placed directly on the human skin to provide non-invasive sensors and high quality.

Electronic tattoos feature buttons that you can use to manage your phone. Researchers created them to function as dosimeters or biosensors that can collect data regarding human health.

They can monitor information about the skin’s reactions to pharmaceutical drugs (biosensors). They can also measure levels of UV light exposure (dosimeters).

Graphene is the most durable thin, lightest, and tiniest material available and is also extremely flexible. The tattoo can be stretched, bent, or bent without sensor function loss with graphene added.

The future sensor is a matrix of materials that includes graphene and silk fibroin.

Tsinghua University and ShanghaiTech University published their findings in Advanced Functional Materials (citation below). The authors included Qi Wang, Shengjie Ling, Xiaoping Liang, Huimin Wang, Haojie Lu, and Yingying Zhang.

Tests of electronic tattoos demonstrate high sensitivities

Researchers printed an aqueous suspension of graphene silk fibroin, a silky substance, and calcium Ions. By this method, the graphene flakes were distributed within the matrix to create an electrically-conductive path. The path is highly dependent on changes in the surrounding. It is also able to detect multiple stimuli.

The tests showed that the tattoos of the electronic age are extremely sensitive to constant stimuli like humidity, temperature, and tension.

The tattoo’s electronic component can self-heal. When the tattoo comes into contact with water, it will be treated if there’s mechanical damage. The process of healing was quick; taking less than 0.3 seconds was complete, i.e., 100 percent.

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