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The new sensor is as light as feathers and can be used as the second skin of humans.
Release Time:2019-11-11

   According to the British New Scientist magazine, a transparent plastic sheet full of sensors can be used as a medical implanter. Its structure is very subtle and will not cause deliberate attention. Perhaps it can be used as a "sensory skin" for prosthetics and robots.

Micro tension

   Tokyo University of Tokyo data scientist Takao Someya and Martin Kaltenbrunner point out that this plastic texture circuit is lighter than feathers, only 1 micron thick, very flexible and can be used as an implanter. They are placed in the human body and it is difficult to feel their presence, for example: placed on the back of the hand, perhaps on the lips.

Dyeing Kaohsiung said: "This skill is aimed at developing new biomedical sensors that give the wearer no uncomfortable feeling. It can also measure body temperature and heart rate under no pressure, which is the key to artificial skin planning for sensory touch or temperature. feature."

Micro tension

   Scientists have previously created ultra-thin sensors, including: "electronic tattoo" patches stick to the skin, can record brain waves, can record fetal heart rate when pregnant mothers use. However, making thinner and more flexible sensors will cause problems in traditional microchip fabrication skills. Normally high-energy plasma can be deposited on the surface to create circuits, but this method does not work well on soft, skin-like skin. data of.

Dyeing Kaohsiung said: "The high-energy plasma treatment method destroys the ultra-thin and integrated polymer foil, which will form pinholes. Now our approach can avoid this."

The panel found a way to stack ultra-thin, thin aluminum oxide layers on a transparent polymer foil at room temperature, after which additional circuit components can be attached to the oxide substrate, such as transistors made of carbonaceous materials, organic compounds and touches. The sensor may be a temperature sensor.

Unlike traditional semiconductors, this organic material can be processed at room temperature, and circuits based on organic data cannot now process information as quickly as silicon transistors, but they fit well well. The panel created a 12 x 12 array circuit with an organic touch sensor that is only 3 grams per square meter and provides superelasticity on the pre-stretched polymer by placing electronic components. When the data was extended to 2.33 times, its electronic and mechanical properties did not change.

Chris Melhuish, head of laboratory at the Bristol Mechanical Laboratory in the UK, said the sensor could not operate independently. It needed a power supply. Although it was as light as feathers, it still needed other circuit configurations. Current connectivity, this will be the next major planning challenge.


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